Archive of Our Own

Derek maintains that as much as Casey is hot and he loves her, sometimes she dies on the weirdest hills. Take Truman French, for example: sure, the guy apparently has a list rating all the girls in school from one to ten, but let's be honest here, that's not awful. 

Well, okay, Derek knows it's terrible for every involved party, especially the girls, but it's also kind of funny. How much free time does Truman have? Really, if the man's walking around with a list of girls on a scale of one to ten, then he's obviously not getting laid. Probably never will, the way he's rating them. If gossip is to be believed, Kendra has started calling him by the names of presidents she hates. And it's gossip, so it's from Kendra. 

Getting mad about this would be hypocritical; Emily has the exact same list, but for guys, in her notebook. No one objects to that! Casey has, multiple times, but Derek's pretty sure that's just because she hates that he's ranked as a solid twenty five on her scale. He can't help being perfect. Truly, he's a victim. 

So look, Truman has a list, he's certainly made an impression, and Derek honestly doesn't have strong feelings on the guy. It's not like he's telling girls their rankings if they're bad, right?

The ambivalence goes away the second Derek sees Casey, who's close to tears, and wants to kill. It's a normal reaction, fuck off. The girl he loves, for some reason, is crying, so he's going to kill whoever did this. "Who did this to you?" He asks, walking away from Sam mid conversation. 

"Am I a six and a half?" Oh god. It's Truman. Casey's crying over Truman French? "That's apparently my ranking." 

Six and a half? Does Truman have eyes! Look at Casey, she's easily a ten. At minimum! And Truman doesn't see that? Even worse, he chose to tell her that? What type of sick bullshit is this? No one makes Casey cry. No one. And no one lies to her about being beautiful. 

But they're in public, so he's got to be careful. "I'm gonna kill him," Derek decides. "Lead me to Truman, and I'll kill him. Any preferences on how? I feel like you get to pick." 

Casey scoffs, rolling her eyes, so something isn't totally fucked here. "My preference is that you don't kill him."

"He made you cry. I'm like eighty percent certain that makes it legal for me to kill him. Sammy, Ralphie, come here." Murder is totally justified here. Derek could probably get off with probation or something. 

"Why are you crying?" Sam asks, standing still. "What'd Derek do? You've barely been together for a minute." Such little faith. How is Sam his best friend? Interviews for new ones may be required to actually succeed in life with a supportive friend by his side. 

"Dude. Why have girls been crying all week? It's Truman. I say we string him up by his ankles," Ralph suggests. What a smart guy. That's not normally something said in relation to Ralph. 

"The president?" Sam may be more of an idiot than Derek suspected, or just obsessed with his flirtationship with Kendra. 

"Yes, Harry S. Truman rose from the grave after over thirty years to make Casey cry." Seriously? These are his best friends? Two men that are utter idiots? "No, dumbasses, it's Truman French, the new kid. And you're helping me kill him."

"We are not killing him," Casey says, groaning. "I'm going home and Derek's driving me. You two are going to refrain from committing any crime this afternoon against Truman." She's pointing now and being very Casey about this whole thing. Ugh. Why can't Derek kill the guy? He'd really like to! It would make him very happy. Does Casey not care about his happiness? Really, she should let Derek kill Truman, just for the sake of women everywhere. "Now."

"You lead the way, I'll follow up. If you see blood on my hands, ignore it," Derek encourages. He doesn't know the last time he was this mad. Probably when Abby said Marti and Ed should visit and then never followed up, so he had to deal with their tears. Gross. 

Maybe Derek's godlike abilities involve summoning people, because Truman comes down the hall just then. "No, no, no, no," Casey says, grabbing Derek's arm. "Ignore." 

He would have considered it if Truman didn't have to open his fat mouth and say, "Hey, six and a half." So really, this is Truman's fault. Derek shoves Casey's arm off of him (she's surprisingly strong) and can feel his hands balling into fists. "Derek, Sam, Ralph."

Casey's eye roll can be heard from where Derek's standing, but so can the way she sniffles. Fuck, he's gonna murder Truman. "What'd you just call her?" Derek asks, moving closer to Truman. "Say it again. I dare you."

"Aww, Casey, is your big bad stepbrother gonna fight me?" Truman asks, laughing. Not funny, asshole. Though his face would make such a lovely landing pad for Derek's fist. "I'm so scared." This man should not be laughing! "Ooh, maybe I'll get a lecture. You know, I've heard about you two being weird," understatement of the century, but shut the fuck up, Truman, "but I wasn't expecting to witness it this early."

"This is just how they are, bro," Ralph adds helpfully. "No one understands them."

"Derek, I swear to god, I will kill you in your sleep if you don't back away from him," Casey threatens, but her tone isn't that of an actually mad woman, so he ignores it in favor of shoving Truman against the nearest locker. 

"I don't know how things went in Toronto, but here's a little tip for Thompson High: never say something like that about Casey again. No one talks to her like that. Not even me." Derek's aware he's not normally perceived as intimidating; he jokes too much for that, but right now, yeah, he's pretty sure he's intimidating Truman. Thank the Leafs. 

"Or what? You gonna get mad at me? Oh, I'm so scared. Casey, won't you save me?" Truman mocks, and Derek sees red. 

"You're new here. I'll give you a pass for being a dick to Casey and making her cry. I will. But if it ever happens again, I'm going to break your nose into so many pieces you'll look like one of those Picasso paintings," Derek promises. "No one makes her cry, got it?"

"I'm pretty sure this is bullying and targeted harassment towards me," Truman says. "Would hate to see you go up against Lassiter for this. Especially so early in the year."

"And I'd hate to have to explain to him that you get off on making girls cry. I'd really hate it if it got out, somehow, that the reason you had to transfer schools is that you were such an ass they couldn't stand to have you there anymore," Derek agrees, with a smile on his face. "So really, please, go report me. Have fun with it. I'll be sure to tell Kendra and Emily all about it. Good luck getting a date then."

"Well, if you do that, I'll have to talk about some of the rumors about you and Casey here. Gotta say, this isn't helping those." Oh, he's gonna be dead. 

If it weren't for Casey's annoying strength dragging him off of Truman, the man would be dead. But no, she has to drag him off of Truman and to the car. "You cannot just start a fight with a guy because he told me I'm basically ugly and disgusting and scum of the earth!" She's shouting, a rant built up, Derek can already tell. "Lassiter already hates you, it's the start of grade twelve, and I would really like to avoid having to get you out of trouble for at least a week or two! This year is stressful enough and you just had your big breakup with Sally, and I am not going to let you spiral."

There's more words, but Derek's only half listening. "Do you think I seriously did all of that because I'm pissed about Sally? Case, I've been mourning that since March. I'm well past the anger phase. I'm pissed because you're crying."

"You're angry because you can't handle emotions but feel some necessity to not see anyone cry because crying triggers your mind to childhood traumas," Casey says. What the hell? "I met with Paul today." Well, that doesn't explain anything.

"How much of your time with Paul is spent psychoanalyzing me?" Derek asks, genuinely confused. Seriously, he knows that about eighty percent of his time is dedicated to thinking about Casey, but hers probably isn't. "Isn't his job to figure out what's wrong with you so the mothership can come back and we will finally have confirmation you're an alien species?"

"His job is to provide a safe environment for me to talk about my thoughts," Casey corrects. "I'm going to need to explain this to him tomorrow."

"No, you're going to need to explain this to the cops tomorrow when they find Truman's body," Derek corrects. "Unless we know anyone with pigs or acid. Otherwise, I'm getting caught and explaining to the cops that it was a logical decision." What part of this isn't Casey getting?

"There will be no cops tomorrow." Are they going to kill all the cops too? That seems a bit extra, but then again, it makes sense to. Casey likes being thorough

"Okay, well we better get moving if we're killing all the cops in London by tomorrow morning. That's a lot of murder." It is, which is why Derek wasn't expecting Casey to suggest it. Oh good, the Prince is in sight. His beloved car. "Do you think we could fit Truman in the trunk?"

"I'm not entertaining this. You're not killing Truman, or cops, or anyone, for that matter." Ugh, she's close to shouting now and they're in a near empty parking lot so there's no one to save him. "You are driving us home."

"And then killing Truman. Makes sense." Look, the violence and hatred is still running through Derek's bloodstream. No one hurts Casey. Ever. Not if Derek can help it, and he can! Via the grotesque murder of Truman French, Casey will not cry. Well. Nah, she wouldn't cry if he died. Derek's like ninety percent sure. "You wanna help or would you prefer to be my alibi?"

"Drive us home. The house should be empty, so you can plot out your crimes there." An empty house with Casey may be a distraction from murder, actually. They've hooked up a few times since he's broken up with Sally and unofficially sworn off girls again. 

It's either get over Casey in a literal or metaphorical way, and Derek's choosing literal. There's something different about her lately (not the highlights) and he can't figure out what it is, but it intrigues him. Ever since Derek planned to follow Sally to British Columbia, a choice he can now understand wasn't the greatest, she's been different. Softer, maybe? No, that's not true; he's pretty sure she's leaving marks from how tightly her hand is wrapped around his arm. He'll figure it out one of these days. Hopefully. 

Derek is faced with two options now: go home and have sex with Casey, or go home and plot Truman's murder. He would multitask, but there's still tears in Casey's eyes that she won't let fall, so that's a solid no. If she's crying, murder is entirely justified and encouraged by the Canadian government. Possibly by the United Kingdom. That's the random organization with all the countries, right?

"Empty house. For how long?" Derek asks when they finally approach the car. "And as much as I'm enjoying being groped, let me go, woman."

"I hate you," Casey says, but it's lacking all heat and sounds more fond than it should. "And the house will be empty for two and a half hours. George and Mom are at work, Liz has soccer practice, god only knows what Edwin's doing, and Marti's got after school care." 

Two and a half hours is plenty of time to seduce Casey and make her forget all about Truman, right? Make her realize that she is so much more than a six and a half, that she's fucking perfect, that half the time Derek can't think of anything other than her and the way her eyes get all sparkly when she wins something. Maybe she'd realize he's in love with her, realize she's in love with him, but Derek's not hedging any bets on it. 

Look, he's about ninety percent certain that Casey has a thing for him, at least physically. Which, duh. Even rotting corpses are attracted to Derek, it's just a fact. He's got the attractiveness of a god. But emotions are harder to figure out. They're friends, sort of. They're kind of enemies. It's complicated. She seems to like him, though. 

Not that Derek would ever make the first move. No way, Jose. Casey needs to. She should use those words she loves so much and confess her feelings with them. God knows having sex isn't how she realizes it, and that Casey tends to fall asleep before Derek says he loves her, so this is entirely on her. He's not messing up a good thing just because he has feelings. They're gross and, with time, could possibly go away like the flu. 

Except for the fact that it's been years at this point and they're nowhere close to leaving. If anything, these awful feelings that catch in his throat and make his chest feel like it's been turned into Jello are getting stronger by the day. Having feelings sucks. It's too messy for people to survive, and even if it wasn't, feelings are evil. 

They make Derek be nice to Casey. He doesn't want to be nice! Derek wants to make her hurt as much as his chest does sometimes when he looks at her, as much as his stomach did when he realized Sam liked her back (in hindsight, he was a little stupid), as much as his heart does every single time she cries. If he's in pain at least three times a week, she should be too, but no, Derek has to be in love and want her to be happy and other bullshit that makes him far nicer than he should be. 

Casey unhands him, finally, and Derek can't decide whether he's happy to have airflow back in his arm or if he wants the warmth of her hand back. "Pick: sex or murder. Or both." Women like choices, Derek's pretty sure. He thinks that's like half of feminism: choices and Babe Raider. So he gives them choices, because he's polite. 

And also because he likes the way Casey rolls her eyes. "I am not having this conversation in the middle of the parking lot. We're at school!"

Right. School. The place where most people don't know about this thing. Kendra does, but that's because Casey apparently spilled the beans one night when she was stoned with Ralph. Which, yes, shocked Derek as much as you would expect. Derek gets in the Prince, smiling, while Casey walks to the other side. "Now that we're in the car, make a choice." 

"Sex is significantly less illegal," Casey says, as if she's having a mental debate over this and Derek likes her a stupid amount. He has to bite the inside of his cheek to keep from grinning at her. "According to Canadian law, hooking up is perfectly legal, while murder is a class A felony. Not to mention, I'd be an accessory, so it's just poor taste to drag me into this murder. I don't even support it."

"That's because you have awful taste in men that you'll defend until your dying breath." Derek puts on his seatbelt, checks Casey has hers on, and starts driving back home. "They're terrible. I don't count, obviously."

"Arguably, you're the worst choice. From an ethical point of view, philosophers have yet to reach a consensus on whether or not quote unquote stepcest is moral. Clueless supports it, as does Jane Austen's Emma, but just because they do and it appears that Gossip Girl does as well does not mean that it's moral, it means it fascinates the media." She's ranting about Derek being the worst and for some reason, he really wants to kiss her. God, this girl broke his brain. It's something about the way that she bites her lip when she's deep in thought like this, how she tilts her head, showing the lovely neck Derek wants to suck on, the furrow of her brows once she really gets going. Someone shoot him. "It is also apparently a category of pornography that is popular, though the ethics of porn are a whole other can of worms, as is the authenticity. You'd be shocked by how little the actors portraying it are actually stepsiblings."

"Are you watching stepsibling porn?" Derek asks, eyebrows quite possibly hidden under his hair. In his defense: that may be one of the hottest things he's ever heard. How is he still driving this car and hasn't come close to vehicular manslaughter yet? Miracles happen every day. 

"What? Gross! No, Der-ek, I do not watch porn!" Thank god for the traffic light, because Derek can look over and see how offended Casey is. "It is a disaster of morals!" 

"How are you aware of porn categories then?" This is very confusing. So is Casey, normally, but this is slightly weirder than normal. Mainly because it's about porn. Does this qualify as foreplay? Probably not. Objectively, it wouldn't make sense. Besides, as much fun as it is to see Casey all flustered, it's so much more when he's able to truly admire her, instead of operating the Prince. 

"I'm a seventeen year old girl who attends a public high school and has two stepbrothers. It'd be weirder if I didn't." Well. She has a point there. Except Derek's pretty sure Ed is too young to watch porn. Maybe. How old is he again?

"So we've decided on sex, then I commit the murder alone late at night with no witnesses?" Derek asks, trying to get her to smile. He can tell by the look on her face that Casey isn't over this, that it'll live in her head forever, so he needs to fix this. At the very least, provide a distraction temporarily so she doesn't focus on her body and all of its imperfections that he's sure she's found, being a dancer and all. 

"Sounds like a plan. Your room or mine?" This is, in a very fucked up way, what a relationship between them could be like. Except instead of that debate normally being for sex purposes, it would be for studying and cuddling and doing gross couple things that Derek learned he likes.

Sally was never going to be the love of his life. But she was great while she was there, and taught him a ton about how a relationship should work. It should be easy. And yes, sometimes it feels like you're fistfighting each other through it all, but there's love. At the core, love should be easy, even when the person you're in love with is Casey McDonald and she's insane. The best lesson he got is that Sally might not be his person, but that he wants to do the cute couple shit. Well, to a degree. Cuddling, stargazing, cheesy dates, prom, all the bullshit. Derek actually likes it. Kill him now. 

Somewhere, there's guilt, as there always is at the thought of Sally; that Derek loved her so much, knows she felt the same way, but it wasn't enough. No matter how much he loved her, there was Casey. Seventeen years may not be a significant time to be on this planet, but it's enough for Derek to know that he wants to have the feeling Casey gives him more than the safety of Sally. 

Not that Sally was a safe choice or anything; god, she was frustrating and loud and spoke her mind against him at family dinners and challenged and excited him. Derek always knew it'd end with hearts smashed on the ground. He just never expected Casey to be why. 

That's not fair; Casey loves Sally. She didn't do anything intentionally. Hell, if she had an inkling of what Derek felt for her, he may have never been with Sally in the first place. Or Casey would've never spoken to him again and his heart may have healed. If Casey feels something back, which Derek is incredibly unsure of for obvious reasons, then she would've told him. 

These comparisons are pointless, Derek knows, because there's no comparing Casey to anyone. It's fucked to say, especially coming off of whatever the fuck he had with Sally, but no one could ever compete with Casey and win. Well, maybe in hockey. But not in how much she makes Derek smile, how hard he gets randomly when the thought of the sounds she makes when he's inside of her float through his mind, how goddamn annoying she is, the way that her whole person lights up when she's happy. Casey is going to frustrate and haunt Derek until the end of his days, one way or another. 

Maybe this whole thing ends with her marrying a guy from his team and having three kids with him while Derek's off being awesome somewhere, without Casey holding him back with her lameness. But he doubts it, not only because he is stupidly in love with this girl, but because sometimes, it feels like the universe is waiting for them to get their shit together. Like everything is planned, the fucking cosmos have it decided, but Casey's just oblivious. She's holding them back from what they could be, and she's holding a trigger in her hand. Pull it and god knows what'll happen, but Derek has an idea: a life like the one they have now, except with emotions and cuddles and stupid fights over who's cuter and other bullshit that used to make him nauseous. It still does, to be honest, but the thought of it with Casey might cancel it out. 

Casey's not known for her bravery. Does she even know she has the trigger in her hand, that she can say the word and Derek will be hers, even more than he already is? He doesn't know, and he refuses to take the trigger and pull it for her. Partially because too many people have taken away her choices in life and partially because this has to be Casey's decision. Notebook and panic attack and all. Derek will die before he makes a choice for them that blows up everything they hold dear. 

Not that a relationship would, of course; he means that they could kill each other very easily. Sure, they're nicer now, but they're biting their tongues. Derek is, at least. Being in love with Casey doesn't make him magically not an asshole, it makes him an asshole who keeps his thoughts to himself. 

He knows for a fact that she could destroy him in a way nothing else on the planet ever could. From the moment Derek realized that he's in love with Casey, he's been very aware that she could break his heart and it would never really heal. She fell in love with Max, in her own fucked up way, and he had to watch as Casey gave her all to this man who, objectively, sucks, both as a human and a partner. Casey changed her entire life to fit into Max's idea of a girlfriend. That hurt. Watching that, it broke his goddamn heart. There's only so much of Casey's violently self destructive tendencies Derek can take before he confesses something that'll ruin things. 

"Your room. I'll even help you plot your legal revenge afterwards," Derek answers. It's good to see the corners of Casey's lips quirk up, in that way that they always do when she's about to win something. They're only a couple of minutes from home now. 

"Good. We don't have any homework, so we'll plan after dinner during my allotted study time." What a keener. She has scheduled study time for the first week of school. God, he loves her and it almost certainly shows on his face. 

"And your request for the afternoon delight is?" After knowing Casey for so long, Derek knows that she always has something she wants. Much as she gets awkward about saying it sometimes, Casey's never shied away from telling anyone what her heart desires. Besides, they're literally pulling into the driveway; it's good to have a plan the second they get in the house. 

"Never refer to it as an afternoon delight again." A dull request, one he won't follow, but Casey isn't done. "And I want it angry today, please. Otherwise you'll kill Truman, and that's a legal disaster." Well, she used the word please, so maybe he won't kill Truman. Emphasis on the maybe. 

(That's a lie; she said please, so Derek's pretty sure it violates the Geneva Convention for him to not do what Casey wants. But let a man have some dignity before you judge.)

This is supposed to be for Casey, but she's trying to have the focus on Derek, which simply won't do. All he asks is that she be selfish. And guess what Casey is? A good person. Ugh, it's sickening. Enough to make a man vomit. 

Obviously, this means Derek sighs very dramatically before getting out of the car. "Leave your shit, I'll give you a ride tomorrow." Even if he knows the family will give him a look, he'll just publicly humiliate her later. "And I swear to god, if you invite Emily, I'll kill you."

"Why would I invite Emily? If anything, I'd have you give Kendra a ride, but she's with Sam, so I don't think we'll have much luck there. He's started driving her everyday. Isn't it romantic?" Ew, romance. Not Derek's favorite thing. 

"It sounds like he's wasting money on gas to have like fifteen minutes a day with her. He could spend that money on actually going on a date," Derek points out, opening the door for Casey because he can be a gentleman when he's distracting her. "Would you rather drive to and from school every day, or go on a nice date?" 

"I'd rather both. We could split gas." Ooh, the house really is empty, and, far more importantly, Casey's talking about them. As a couple. 

"What, you won't go halfsies on a date? I feel like I remember something about feminism and paying your own way." Casey rolls her eyes so hard Derek's half surprised they're not stuck back there, but the man needs to have a second to plan. 

"Just because I can doesn't mean I should have to. How have you ever gotten a date with that type of attitude?" Casey asks, scoffing. "I mean, seriously, you dumped a girl once so you wouldn't have to buy her a gift!"

"Would you like me to show you how I've managed to have a rather steady lineup of dates?" Derek purposely drops his voice and crowds Casey against the wall next to the coat rack, smirking when she flushes pink. Some part of him wants to compare that blush to a medium steak. 

"I suppose I would be willing to pretend to be seduced by you," she agrees, sighing dramatically. "But you better make it worth it. I have to deal with your repulsive self."

Repulsive. God, this girl is awful for his ego! Truly, every time Derek goes to get an ego boost, Casey's right there to stop it from happening. She is the worst and that's probably why he kisses her. It's for self preservation, you see, so she stops spewing bullshit. And also because he wants to make sure Casey knows she's not a six and a half. 

The smartest idea Derek may have ever had in his entire life pops into his brain just then, thankfully. Six and a half orgasms in two and a half hours? Math says that's totally possible. Probably. If he does the thing she likes with his tongue, it's possible. Worst comes to worst, they've got time after dinner. It'll just have to be quieter, and Derek knows that there are many things Casey is, but quiet is not one of them. 

Well, now that he's got a plan, he can take his time. A little; Casey's being very Casey about this whole thing and aggressive and bratty. Then again, Derek's familiar with their game; his brattiness is simply in taking it slow when she wants hard and fast. Teasing her is most of the fun of sex. 

They've been doing this thing for years now. Derek knows exactly how much she's going to bite his lip (and that there's a nonzero chance she'll draw blood), that if he does it just right, Casey can cum from just him playing with her tits, that she bites constantly and that he's about ninety percent certain that he'll never be calm when it comes to her. Casey has become, as cheesy and gross and borderline soap opera as it is to say, what his world oscillates around. 

Ugh, the fact that he just thought that is a terrible sign for his life. If Derek were ever going to be unaffected by Casey, which may be the goal (depends on the day), then he really should've never made a move on her. Sure, the other choice is knowing she's hot and wanting to kiss her constantly, but he wouldn't know how it feels. He wouldn't have ever known the feeling of Casey groaning into his mouth because she thinks he's spending too much time kissing her. Not knowing those things would've made his life easier. 

Maybe the only reason he's so obsessed with her is that he knows the sounds she makes when he eats her out. Then again, there's a million other girls he knows that for (well, okay, not a million, but virginity is a stupid fucking concept because the first girl he hooked up with was Gabby at the start of grade nine and Derek doesn't really think it was that special) and isn't obsessed with, which kills that theory. 

At his most cynical, Derek has wondered whether or not he only loves Casey because she's a challenge. The first girl to not immediately fall at his feet is the first girl Derek falls in love with and he's supposed to believe that's a coincidence? Fat chance. Thinking of all these things while Casey's tongue is in his mouth is certainly an experience, but Derek is a man of many talents, one of which is multitasking. 

The kiss has Casey putting her entire angry self into it. Derek loves it when Casey kisses him like they're fighting and he's losing. It may be the only time he enjoys losing. "Should I round up or down?" Derek asks when they pull away, his lungs burning. 

"What?" Casey's clearly confused, which is good. "Um, down, I guess? Well, it depends; are you rounding for a tip? If so, up. What are you rounding for?"

"Well, Spacey, if you must know, I'm rounding for how many orgasms I'll give you. Round up, it's seven. Round down, it's six. Pick." Either is achievable with the time they've got. Probably. It's certainly possible. She normally has anywhere from two to five, though there was that one time everyone was out all day and he managed to get nine out of her. If he tries, Derek's pretty sure he can manage that many in two hours. 

"Down," she says, pulling him back to her and Derek is more than willing to oblige. What else would he do, not kiss her? Insanity! Kissing Casey is a necessity, he's pretty sure. Hence why he's so surprised her boyfriends are all shit. 

Maybe they just don't have the same feelings as far as sex is involved and do not, in fact, believe Casey may be a gift sent from the Leafs to them. 

Making out with her is just as it always is; a fight, trying to overthrow each other, the hottest fucking thing Derek's ever done. Casey's hands are tangling in his hair, Derek's on her waist. She keeps pulling and it's just on the good side of painful. 

Before she has a chance to even bitch about him taking too long kissing her, Derek moves his lips down to her jaw. There's this one spot on the underside of it that makes her— ah, there's the glorious sound of a moaning Casey. Derek's well aware he's hard, but the moan definitely makes it more obvious. Tragically, he can't leave any visible marks (Casey would kill him and Kendra would make him buy her food or something as payment for spreading a rumor of the cause), but he can suckle on it and enjoy the sounds Casey's making. 

She definitely makes the prettiest sounds of anyone he's ever been with. Maybe it's the way that Casey refuses to hold herself back, only keeping quiet when they're surrounded by family members in neighboring bedrooms. He's very well aware of the weirdness of their situation. 

The whole thing where Casey hates hickeys, but loves leaving them on Derek, is a sign of her massive hypocrisy, but Derek allows it because it's very cute to witness her insanity. 

Look, at least eighty five percent of how he's still in love with Casey is that the woman has never been boring for a day in her life. She's insane and makes all of his synapses fire on full and so yeah, he's going to enjoy the sounds she makes as he slowly makes his way down her neck. They may be working on a time limit, but Derek's theory from past encounters is that the longer he drags this out, the more she'll cum, quicker. 

Not that Casey's completely taken up his mind or anything like that. Whatever, he's thinking too much and Casey's whines should be fully appreciated by a blank mind. 

She whines as Derek sucks on her neck, leaving open mouthed kisses along it that she'll groan about making her sticky later, egg him on. Really, Casey as a person does, but especially like this. Her lips are bruised from kisses, her eyes are starting to have the glaze of lust and she's whining as Derek sucks on her neck. 

"Bed," she says simply, shoving Derek off of her. "My legs need a break."

"I haven't even touched them yet," Derek teases, following her to her room. He'd normally just say they should continue on the couch, but knowing their family, someone would walk in. 

No one wants to explain to Marti how sex works because she witnessed Derek and Casey in the middle of it. Just the thought makes Derek a little nauseous, so he refocuses his attention on the rather nice view of Casey's ass he's getting. She should walk in front of him more. The girl has a great ass. Why doesn't he focus on it more? 

There's a girl who wants him with a fantastic ass. Maybe today, Derek should compliment her more. She tends to like it, and something needs to lift her self esteem after Truman. "Nice ass," he says, smirking as she lays down on the bed. 

"You're just saying that because you're aroused," Casey argues. This, of course, is Truman's doing. Murder is still an option. 

"Two things can coexist. You're hot and I'm hard," he explains. There are more emotional compliments he could give her but digging into the emotions of it and telling Casey, the woman who's barely over Max, is a terrible idea. Besides, he doesn't want this to be a rebound or something from Sally. 

Even though Derek doesn't believe he could ever be with Casey as a rebound, he knows that it's possible. He thinks he's mainly healed from the Sally leaving to go be in British Columbia thing, but she's only been gone a few weeks. It's weird to be without her, but he doesn't know if he's still in love with her. Sure, he still loves her, but it doesn't feel romantic. It's nothing like what he used to feel, like what he feels for Casey. Derek loved Sally, enough that sometimes he'd forget all about Casey and the way she drives him insane, but he knows she deserved better than what she got. 

No matter how hard he tried to be the perfect boyfriend for Sally, it wouldn't have happened because most of his heart was dedicated to Casey. Well, the part that isn't dedicated to the kids. Sally deserves someone who will love her, just her, and Derek hopes she finds that. Hopes she finds a great person to spend the rest of her life with, who can't breathe right when he's not around her, who's constantly thinking of her, who doesn't have a stepsister they're in love with. 

"If I'm so hot, why am I a six and a half?" She asks. Fuck. Casey looks so small when she asks that, when her eyes are still watery and not in a good way (because if she's being toyed with, the tears are acceptable; it just feels good and sometimes that translates to her crying) because of him. It's a goddamn miracle Derek already agreed to not kill Truman until at least dinner, because he keeps wanting to. But more than that, he wants to protect Casey, to make her know just how loved she is. 

"Truman's blind. You'd have to be to think you're only a six and a half," he explains. "I don't sleep with anyone multiple times who's below a solid nine." Make it seem like it's a thing of pride so she doesn't get suspicious. Brilliant. Derek should get an award for his quick thinking. 

"Or you simply have delusions related to the fact you've seen me naked several times," Casey corrects. Why is she difficult and full of self loathing? That's supposed to be Derek's thing! 

"I've seen plenty of girls naked and decided that they're not a nine for me." That sounds weird, like Derek's got a ranking book, which he can tell from the offended look on Casey's face. "I'm not pulling a Truman, and I'd never be cruel enough to tell them," because he has some standards, "but they're not my type. You're at minimum a nine. I wouldn't keep being here, in this situation, with someone so generally annoying otherwise." 

"No I'm not." This is idiotic, insulting and other adjectives Derek can't think of because he really wants to punch Truman right now. Maybe Sam and Ralph can do it. "If I was a nine, I'd have more guys than Max, Sam, Noel and Scott who have been into me. I've been alive for seventeen years, Derek, and four guys have been attracted to me. Only four!"

"Look, your personality is occasionally grating and you're incredibly annoying and the most high strung person I've ever met. And there are days that I hate you and want to throw you out the nearest window." It's all true; dealing with Casey is exhausting. The feelings especially. "But there's a guy out there, and that's exactly what he's looking for. A hot keener, who's a brat and a princess and has her head up in the clouds most of the time and unreasonable expectations. And, for the record, it's more than four guys." 

There's been at least three guys from every sports team, several total dorks that Derek has so graciously spared Casey from, a bunch of random middle of the rung kids who like her. She has her pick of the guys at Thompson High. And if the thought makes Derek a little nauseous (he's heard some of the things those guys have said about her and it may or may not have resulted in a hockey stick to the dick for them), well, he's just repulsed by Casey. 

Even if he loves her and wants her so much it hurts. He wants all of the bullshit and the best way to deal with it is by kissing her, which he'd do if she wasn't about to speak. Again. God, she talks a lot. 

"Who, you? Wow, that makes five and you can't stand me. You just think I'm hot because I have nice breasts." In his defense, she does have nice breasts. 

This is where, if she were any other girl, Derek would confess that he's in love with her and has been since the moment he saw her roll her eyes at him. Were she not his stepsister, this whole thing would be so much easier. He considers it, even though she's Casey. Especially because she's Casey, honestly. Casey, who can't move on from this stupid comment Truman made. Sally only found out he loved her because, well, things slip out. If Derek ever tells Casey, it won't be a slip. It'll be a confession, giving his heart to her on a silver platter and accepting that she'll never want him like that. 

After all, how could anyone be in love with Derek? He's an ass, he's rude, he's stupid, he's the family disappointment, his only talents in life are hockey and getting dates and, oh yeah, he's obsessed with his stepsister. 

"You've got a great rack, yeah, but you are more than your tits." Derek thinks this is how girls like to be complimented. "You've got pretty hair, nice eyes, a sharp jawline, good mouth, great teeth," seriously, she's never had a cavity, "a neck that's begging to be covered in hickeys even though you hate them, strong collarbones, legs that are sexy as hell, a cute belly button, lovely thighs and, of course, your pussy is pretty great too." 

"Oh great. So guys only like me for my body? That's not how any healthy relationship works, Der-ek, I need to be loved for my brains!" Casey's gesturing now and god, why is he into her. There's some stupid curse because he wants nothing more than to kiss this girl right now and grin. 

"Your personality isn't terrible, but Truman was rating your looks. Who got a ten anyway? I bet no one." It's probably a situation where Truman wants all the girls to fight for his coveted ten or something. The guy seems pathetic enough. 

"Kendra. A lot of other girls too. They just had to be blonde and perky and prettier than me." Fuck, she's close to crying. Again. Her lip is quivering and Derek wants to murder. Truman's death is completely valid and, in fact, encouraged by at least the Canadian government. Right? Casey's crying, that's a very valid reason to go to prison. 

"I dated Kendra. I've dated a lot of other girls. And you know what, Space Case? They're not you. You're hotter and prettier." There are too many emotions here, too many things he's saying in between the lines. Why hasn't Casey shut him up yet? Better yet, why haven't his survival instincts kicked in? "Stop letting this Truman thing make you feel like shit."

"No one's ever told you that you're ugly but your best friend isn't, so shut up and let me process. I know I'm not the dream girl. I'm not the girl the guy ends up with at the end of the movie. I'm no Lizzie Bennett. I'm not even Cher Horowitz." What the hell is she saying? Who are these people? They've got to be from some shitty movies, but Derek doesn't know which ones. "I'm the girl who guys date for a few months but decide is too much work in the long run, because I'm too loud and anxious and I'm annoying and unlovable."

What type of bullshit is she on? 

"Shut the fuck up." The offended look on Casey's face is brilliant, he's gotta be honest. "You're spiraling into self hatred over what a guy named after a subpar president says. Do you know how insane that is? He's not even attractive."

"The whole school's going to know I'm a six and a half. Let me wallow, because everyone who's already not into me is just going to have the fact that I'm unattractive, that I'm the ugly stepsister to your Prince Charming. Guys only date me to piss you off." That would explain Max, now that he thinks about it, but Casey also just compared Derek to Prince Charming. Is she in love with him? 

Wait, no, the mermaid was in love with Prince Charming. Right? Or was that the book nerd? It might have been her. He's not sure. 

Maybe this is a sign Derek needs to keep up with Disney princes. God, what is he thinking? This is disgusting! Casey's the worst for making Derek fall down this mental rabbit hole while she's in crisis. 

"The school only knows we're stepsiblings to save your reputation, Klutzilla." Apparently, not everyone finds her being a massive klutz endearing. "And you're not thought of as my stepsister that often, just like I'm not thought of as your stepbrother. From what I've heard in the locker room," and Derek sighs as he says this because it's horrible, "you're mainly thought of as the hot keener who's weirdly popular and keeps dating guys wildly under her league." Sam is an exception. If only because he's Derek's best friend. 

"Yeah right. The only reason people know who I am is because I'm your stepsister, I dated Sam, I dated Max and I'm best friends with Kendra. Face it, Derek, my life runs on being associated to others. I'm no one, in the view of the high school social chain, without all of those things. I would've never talked to Sam if it wasn't for him being at our house all the time. I never would've become friends with Kendra if you didn't date her. Max wouldn't have known I existed if it wasn't because I'm your stepsister." Casey's rolling her eyes now, presumably at the social hierarchy. "And now, my reputation will be as the ugly girl that everyone pities, except for you, you jerk." She's so loving. 

"Why the fuck would I pity you? You're not ugly. Jesus, Case. You're hot. If Truman doesn't see that, then he's stupid. Besides, there's more to you than being hot." To confess or to not confess, that is the question that will be answered by Casey's next sentence or two. 

"Oh yeah, I'm sure the fact that I've attracted, at most, five men in my entire life is a sign that my personality is just as good as my body," Casey says sarcastically, sighing. It's just now that Derek realizes he's still on top of her, even as he's arguing with her. "And you barely count because you can't stand me." Fuck, it's confession time.

"If I couldn't stand you, would I know that when you're mad at me, you bite your lip? Would I know that when you're satisfied with yourself, you get this cute little smile and start clapping your hands like a kid who just won a candy store gift card? Would I know the exact ways to make you fall apart under my fingers? Come on, Casey. You're not that dense." She can't possibly be that stupid, right? It wouldn't be real. It would be an act, Casey just pretending. 

"You just know that because we've had sex. That's no way to prove we can't stand each other; I threaten to kill you in various ways while we're in the middle of hooking up." Dear god, someone help him. Derek just poured his heart out to this girl and she's still being an idiot. It's impressive, actually. 

"Would I have protected you from Snot if I couldn't stand you? Listened to you bitch about Max every breakup, every time he fucked up at being the perfect boyfriend you want? Would I have been there every time you and Sam broke up to finish what he couldn't? Would I want to kill Truman right now if I hated you or if I didn't care if you live or die?" That's a safe way to confess love, because it doesn't involve the words. "Would I have called Dennis? Would I have saved your reputation and your friendship with Emily constantly? Would I have quit at Smelly Nelly's? Would I have lost my shit when I thought you were going to get punched by the Fridge?"

"Those are all extreme situations! Anyone with a soul would care." Now Casey's shoving him off of her so she can pace the room, lovely. This is so not how he planned on his afternoon going, and exactly why Derek avoids emotions. "You'd care if it was Emily."

"No I wouldn't! Not like I care when it's you. And I swear to fucking God, if you say that it's because we're stepsiblings, I'm going to murder you. It's not because of that." The reason (love) will not be stated for obvious reasons. 

"Then what is it?" Casey shouts, pausing her pacing to look at him for the first time all argument. Her eyes are still full of tears and her tone is fire. "Why do you care? If it's not pity, and not because George and Nora are married, if it's not because we've hooked up, then why?"

The time to make a choice has come and, as one does, Derek stares blankly at Casey for a solid thirty seconds while he's making his. She'll kill him if he tells her the real reason. Or she'll confess that she's in love with him too. Whatever she says, it's the biggest choice of his life so far. More than everything else, this is the thing that could kill him if he lets it. 

People always say love is worth the risk, but Derek doesn't think so. Not when it does this to them, makes their stomach feel like it's coiling up. It's love, he knows it is. There's no question there. Whether or not to tell Casey he's in love with her is the choice here and he doesn't know what to say. 

Telling her has the potential to ruin his life. She could tell George and Nora, ruin their marriage, split up the family. She could never speak to him again. Casey could decide to move to New York to be with her dad just to get away from Derek. 

But, the little optimistic voice in his head that sounds suspiciously like Marti says, maybe it'll be the best thing to ever happen. Maybe this is the start of one of those cheesy love stories Casey loves so much. It could be the most magical thing to ever happen to him, or it could kill him, or both. They could implode on each other, come together only to smash into billions of pieces until their remains are inseparable from the air. 

So, not to be dramatic at all, this is an absolutely terrifying choice to make. And, in true Derek fashion, he's not happy about needing to do that. 

"Because I do, Casey! I can't explain it, I can't get it to die, I can't stop this feeling of dread that fills up in my chest and squeezes my organs until I'm pretty sure I'm going to pop like an overinflated ball whenever you're hurt. I've tried everything and it won't go away." Derek says once he's decided. Not making a choice is the correct choice. 

"That's not a good enough answer!" Well. At least she's following the script. "I need to know what it is so that Truman won't think I'm ugly. I haven't been able to stop thinking about it. The stupid six and a half, it's proof of everything I've always hated about myself." 

"What would be a good enough answer then?" Derek has an idea, and it's the most terrifying one he's ever had. Saying it could, no biggie, ruin his life. 

"One with logic and reasoning. I need an answer. Why do you care?" Casey asks, and she's practically begging. That's her begging voice, he knows, and Derek can hear that she's holding back sobs. "Please, Der." Well, she asked nicely, she's getting an honest answer. The honest answer that could kill them both. Say a prayer to the Leafs that this works well. 

"Because I'm in love with you," he confesses, noticing the way his own voice shakes a little and how Casey visibly pauses. She looks sorta like she's glitching, and he can't keep the smile off his face. "I've been in love with you for years. I saw you that day at your school in Toronto, looking like something out of a dream. You had that stupid skirt on and you hated me and you rewired my brain. I thought you were the most gorgeous girl I'd ever seen. And then I realized you were Casey, the stepsister to be, and I hated you. It was too late, though, because I couldn't. Not all the way, at least."

Casey's still staring at him like he's grown ten heads, and she's in shock. "No. No, you don't love me. No one loves me, you don't, that doesn't make sense." 

What the fuck is she saying? "I mean it. I swear on Marti." Derek stands up cautiously, moving closer to her. "I love you, Casey."

"You hate me. I'm annoying and loud and insufferable and the worst and I'm ugly and no. You don't love me, you can't, stop being mean and pretending you do." Once again, Casey's shoving at him, only this time, Derek's prepared and holds her hands. "Stop it. Don't lie to me. I don't want your pity, Derek. I don't need it."

"I'm not saying this because I pity you, I'm saying it because I'm in love with you. Have you ever considered that, maybe, even if you are the worst, I love that about you? Because I do, Case, even when you make me want to throw myself off the nearest cliff. I love you and it's real. Stop hiding from it. Hate me, do whatever you want, but don't pretend it's not real." It doesn't end well. Derek's braced for rejection, but he wasn't prepared for this Casey breakdown he seems to be witnessing.

Rookie mistake; everyone should be prepared for a Casey freakout at all times. "How? Why? When?" She asks, seeming a bit calmer. Almost like she might believe him. 

"Since we met. I didn't know it then, but I loved you. When Scott came around, you remember my crisis?" Casey nods, still confused, and Derek smiles, squeezing her hands. "That was because I realized I'm in love with you. And believe me, I tried everything to stop it, to make it go away, but I couldn't. I don't know how, or why, but I know that I love you. Possibly more than Marti." That's terrifying, but it's true. "I love you. Don't hide from it." 

"I didn't love you when we first met." Well, that's rude. And a little confusing, but Casey's somehow rearranged her hands so they're holding Derek's. She seems more confident in whatever she's going to say. "I hated you. I genuinely did. Yeah, you were hot, but you were the worst." This is so not what he wants to hear, even if it is true. "But over time, you crept up on me. As loath as I am to admit it, Venturi, you charmed me." This is getting better. "And when I thought you were going to Spain, that's when I knew. Some part of me did, at least, but I wasn't ready to deal with it." That makes a lot of sense, actually. "So when you were ready to move across the country to be with Sally, that's what it took for me to realize I love you. I don't know when it happened, or why, but it did. I just— I don't want to be a fling to you. You and Sally broke up a few weeks ago." 

Did she just say she loves him? Rewind the tape, please, Derek didn't catch that! Or if he did, he's pretty sure this is a fever dream. Never, in his wildest dreams, did he think Casey would actually love him back. "You what?" He asks, well aware his voice is fucked. 

Casey's smiling, and it's so bright she might be the fucking Sun. "I love you, Derek Venturi. And I've been in love with you for a long time." 

Holy shit. She said it twice. That means it's real, right? It has to be. "I fucking love you," Derek says, his grin about to break off his face, before he kisses Casey. How could he not? He loves her and she loves him. This is the greatest day of his life. 

It is, objectively, a terrible kiss. It really is. They're both grinning and Casey's giggling and really, this isn't how kissing should be, but it might be their best. Maybe this is what kissing is supposed to be like, breathing in the same air because you love each other so much you can't bear to be separated. Feeling like you're high, like your feet aren't touching the ground, like you're walking on water. 

Does love turn people into Jesus? Possibly. Derek's not sure and, frankly, he doesn't have the brain power to devote to this cause. Right now, his life's purpose is to make Casey cum six times. At minimum. 

They're not running low on time yet, but Derek hopes emotional confessions are a turn on for Casey (they seem to be for him), because six in just under two hours is a tall order. Lucky for her, Derek's up to the challenge. He's up to all of them, so long as she's with him. 

That's why he untangles their hands, lets her grope him (she has a very weird thing about always having her hands either in his hair or on his ass, don't ask him), and starts leading Casey back to the bed. Beds are more comfortable than standing freely. It gives him far more comfort as he takes Casey to pieces as well. 

"Promise me you're going to make love to me," Casey says when she pulls back from the kiss to get settled on the bed. "I know you like foreplay, but just promise me. Please." Look, normally, Derek would object to the phrase. He's feeling generous today and will not, mainly because it's Casey saying it and it gives him gross feelings. 

"Of course, Case," Derek says with enough sincerity to kill him. "I'll take care of you." She nods, pleased with herself as Derek moves down her body to the underside of her shirt. "Up."

Oddly compliant, Casey lifts up her arms and smiles as Derek (in one of his less than graceful moves) throws her shirt and bra somewhere random in the room. As always happens when he sees her tits, Derek's pretty sure angels start singing. The world is righted again. "You just gonna stare all day?" 

Normally, he would, but there's a Casey who's in love with him topless, so Derek rolls his eyes before moving to suck on her breasts. One is in his mouth, while the other gets played with by his fingers. Casey starts moaning and it is beautiful. He enjoys having her tits in his mouth, especially when she starts grinding up into him. If that's what Casey wants, then she will get it, so he matches her rhythm. 

There are times where Casey can cum from just this, just Derek leaving hickeys on her tits, hidden from the view of everyone but them, and he thinks this is one of them. They've barely gotten started (there was the whole love confession interruption) and already, Casey's making the most beautiful sounds he's ever heard. "Fuck, Derek," she groans. "More, more. I need more." 

Ask and she shall receive. Derek moves his lips to her other tit, sucking on her nipple now while pinching and rolling the other with his fingers. This is romance. 

She's rolling her hips faster, becoming louder, and Derek knows what that means, so he bites down, right under her nipple, and Casey comes undone. It will never get old to watch as she falls apart under him, Derek's certain. Being able to see this, to know she loves him, to know that he got her so hot she just came in her underwear, yeah, that's a massive turn on. 

"Good girl," he praises, kissing her. "Got five more in you, Princess?"

"I think the question is whether you can make it happen five more times," Casey says with a smirk. What a brat. Derek loves her. 

"We both know I can," Derek says, grinning. "If I get that just from sucking your tits, imagine what I can get with my tongue or cock." He refuses to pretend he doesn't notice the way Casey's eyes are starting to glaze over and moves down to her chest again before Casey's pulling him back up. 

"Shirt off," she requests, smiling. "Mine is, it's only fair." 

Well, she has a point, so Derek shrugs, shucking off his shirt and, just for good measure, his pants and underwear. Nudity is liberating. There are times he wants to live on a nude beach. "Anything else?"

Mainly because Casey looks at him like he's a mouthwatering steak when he's naked. (Look, he's having a craving. Women are allowed to have them, so should he.) "No," she says breathily. A win for Derek and men everywhere. Well, not that they're ever going to hear or see this. No, this is his Casey and he will not share her. 

When he moves down to pull off her leggings, Casey nods, which is obviously yes, and normally, he'd take his time, but not now. Not when she's issued a challenge in their game. This is time to win and today is a day where Casey wants it fast, so fast she shall have. If only so Derek can win the latest challenge. What, he's competitive and orgasms are a perfectly good way to win a fight! 

So the leggings and panties (which are positively ruined, a fact that brings a smirk to Derek's face) are pulled off her body about as quickly as is humanly possible. He may be possessed by the Flash momentarily, Derek's not sure. 

It's all worth it when he's greeted by the glorious sight of a naked Casey. Fuck, she's gorgeous. How did he get so lucky? Must be the love of hockey and supreme ego. 

Right, he's here because Casey wants it fast and angry, and Derek can't be angry right now, but he can do this fast, bring her over the cliff quickly. Time to refocus his attention and (tragically) minimize foreplay. Hopefully the emotional foreplay of the love confession was enough. Worst comes to worst, they've got their whole lives to figure it out. But Casey's pussy is shining, so he's going to guess there's enough. 

With that in mind, he sets to work at driving her insane, wrapping his lips around her clit and writing six and a half inside her with his tongue. It seems to work, if the way that Casey's pulling at his hair is any indication. She manages to always do it just on the right side of painful, enough that Derek groans into her, which makes Casey let out the most wonderful whimper, but not so much she pulls out his hair. The woman is a miracle. Truly, she is, and Derek's stupidly lucky that she's his. 

Make no mistake, this girl is his and he is hers and her insecurities are going to be solved by lots of orgasms. Hopefully. It might also take emotional conversations. Orgasms are the first line of defense. 

"Der-ek," Casey whines, which is his sign that he's doing something right and that she's close. Good. She should be. This is one of his favorite ways of making her finish. 

To win this battle (because make no mistake, just because he loves her and Casey loves him back despite all odds, holy fuck , does not mean that they're not still at war), he brings out the big guns, humming some cheesy Taylor Swift song as he eats her out. It happened once because it was stuck in his head, but holy shit, it had an effect on Casey. 

Does Taylor Swift turn all women on? It's a possibility Derek's not entirely sure the answer to. But it works for Casey, so that's all he needs as she cums loudly, moaning something that sounds vaguely like French. What a weirdo. 

"Two down, four to go," he says smugly, lifting his head to look at her. God, she's pretty. She's covered in a layer of sweat and hickeys, her lips are bruised, her pupils are blown and she's the best thing he'll ever see. "How ya feeling?"

"Like I want to kiss you, but I also don't want to be sticky." Even two orgasms in, Casey's cleanliness reigns supreme. It's adorable. "Wipe your hand on this paper towel, please." When the fuck did she start storing them in her room? God, he likes her a gross amount. 

(There's a big difference between like and love; George loves Derek, but doesn't like him. Derek loves Casey and likes her. It's wild, he knows.)

Regardless, Derek wipes his face on the paper towel before moving to kiss her. She moves her hands to his shoulders as she kisses him like she's trying to suck herself out of his mouth. It's the hottest thing he's ever done. 

"Ready for more?" Derek asks, kissing her cheek. It is, slowly, becoming harder and harder (the irony) to not just fuck her like there's no tomorrow, but Derek's not the type to be able to cum twice in this short a length of time, so he's going to have to wait. 

"Yeah," Casey nods, looking like she's going to get a little overwhelmed soon. He thinks it will be good and can normally read this, so Derek's got high hopes as he goes back to her pussy. 

A Casey overwhelmed by pleasure is always a good Casey. She's without inhibitions and insecurity. It's glorious. And while, admittedly, it can make it a bit difficult to make sure she's having a good time, they've worked out a system for when Casey can't speak to avoid that problem. The system has yet to fail them. 

This is probably not the normal thoughts a man who's eating out the woman he's in love with has, but in his defense, it's Casey. Nothing about them ever had or will be normal. They're an interspecies relationship; Casey's a fucking alien. Derek's still not convinced she's human. Is it illegal to be in love with a member of an alien species? Someone should figure that out. Not him, because searching it would probably get him on some list, but someone should. 

Humming a different song, one that Casey plays constantly but Derek doesn't know anything about, also makes her whine louder. Music may be the secret to making Casey cum. Just hum while eating her out and boom, your face is a bit of a mess and you're licking excess off your chin. 

To be clear: try that on someone else, not Casey. Go find the nearest girl who's willing to let you eat her out, make sure you haven't had any garlic in the past few hours, and go to town. But do not pursue Casey or he might have to kill you. 

"You're so pretty," Derek says, smiling as he kisses the top of her cunt. "Three done."

"Halfway there," Casey nods. "I love your tongue. When you're not being dumb, it's so great. I love it." That's a compliment and a pretty good one. 

"Well, I love you, so I think that makes us even," he agrees. Saying the words out loud still feels surreal. Will it ever feel real that he can just say them now? Probably not. Derek's fairly certain it's a dream he's about to wake up from. 

"Come here. You're too far away," Casey says, dragging him up by his hair. Lovely. Thank god Venturis don't bald. Otherwise, this woman would be the reason Derek has a lot of hair loss at seventeen. "I like it when you eat me out, but I hate it when you're far enough away I can't bite. It's not fair." She's pouting and adorable, as if this is the biggest concern to ever happen to anyone. 

"I don't know how to fix that for you, Vampirina." This girl, this awful, incredible, brilliant girl, is his and she's pouting because she can either have him eat her out or bite him and Derek loves her. 

"It's easy, you stay up here but unhinge your jaw like a snake." Sometimes, Derek forgets that after a few orgasms, Casey's brain becomes a bit mushy. And then she says something like that. "Or just use your fingers or something. There's three left. I want to bite you. You're such a nice canvas. It's like I'm an artist painting you."

That's actually a beautiful metaphysical raptor. "Okay, Princess. Your wish is my command," he agrees, kissing her as he slides two fingers into her and one to her clit. 

She's moaning nonsense into his mouth, and it's not even a kiss, but it's perfect because it's Casey. The same woman who pulls apart to bite into his shoulder because she's close, he can hear it. Even though it's only been a few minutes, she's getting there. Good. Derek adds another finger in, because to be honest, it's sort of an ego thing now to get her to the finish line before he gets closer. 

He's already rock hard, just from Casey being herself and making all these sounds. Patience is a virtue Derek barely possesses, and he'd gladly hand it over if it meant that Casey would somehow have a double orgasm right now. 

Is that possible? It might be. He kinda wants to try, but also doesn't, because Casey squeezes his fingers before cumming, biting into him hard enough Derek's not entirely sure she doesn't draw blood. He should not find that thought hot. Has she awoken some random thing Derek didn't even know he had, found a new turn on? It wouldn't surprise him. 

"I love you," Casey says, pulling him into a kiss. "Fuck, I love you." It's a good sign that Casey's cussing. She doesn't do it much (something about propriety; he tends to tune it out) but when she does, it's the hottest thing he's ever witnessed. 

"I love you," he agrees in between Casey's nibbles on his jaw. "Two more in you, Case?" Because, look, if she wants to tap out here, that's perfectly fine; they can just chill for a bit. But if she wants the other two, which he promised, now, then she shall get them. 

"Yeah, but I think you better hurry up." Right. They have time constraints and other stupid things.

When the woman he's in love with confesses her love, Derek tends to forget concepts like that are real. Let him live. 

He moves back down to her center, which is beautiful and dripping, and uses his mouth on her clit and his fingers inside her. Eating Casey out is lovely. Derek should do it more. Could it be a career in a way that doesn't involve porn? That'd be great. Besides, Derek knows that this type of combination is almost guaranteed to have Casey finish quickly, which is her goal. Probably booked time for emotional conversations or something, the keener. 

Actually, they're probably having emotional conversations after dinner. Gross. He should bring a barf bag. 

If Casey's going to be so Casey (translation: annoying and brilliant and the most beautiful woman he's ever seen), then Derek thinks it's only fair he gets to make her cum so many times she's sobbing. Good sobs, not bad ones, there's a very key difference here. The ones she makes four orgasms and counting deep are beautiful. They're full of pleasure and sound like she's been hollowed out (a concerning thought) and replaced by pleasure, like her body just can't take it. It's a massive ego boost and quite possibly the hottest thing Derek's ever witnessed. 

So yes, he smirks around her clit when she starts having sobs interrupted by gasps for breath. Means he's doing his job and Casey's close, which are two of his favorite things to do. 

Did he just think that he likes work? God, something's wrong with him. Maybe it's Casey. 

She splits his name as she cums, the only sound she makes but it's perfect regardless. Fuck, he loves her, loves this, the way that she's fisting his hair while he's doing his best to fully take her to pieces. There's nothing better than this and Derek knows, in this moment, that today, no matter what happens in the future, will live in him forever. A before, after and during will be eternally etched into his being. 

To say that today may have drastically changed the outcome of his life from rockstar with a kid, no friends, no partner and a shitty relationship with his family would be incredibly dramatic. But it may also be true. In another lifetime, he might have never had this with Casey. Worse, he might've spent the rest of his days with someone else, hoping she'd fill the void left by Casey. She'd be great, he's sure, but she wouldn't be Casey. And Derek would resent her forever for it, resent Casey and this hypochondriac partner and everything else in his life. 

Thank the Leafs that isn't the world Derek lives in. He lives in a world where Casey loves him, where her eyes are glazed over, there might be tears, her hair is a fucking disaster (don't blame a man for playing with his girl's hair), her entire face is red and fuck. Fuck, Derek doesn't know if anyone's ever looked better than Casey, with all of her disaster. Disaster he caused, mind you. 

Loving Casey is easy. It's second nature. So when she smiles, starting to come back to herself (because, massive ego stroke here, sometimes she just forgets where she is and it's not even on purpose because of Derek), his heart is so full of feelings it hurts. It fucking hurts to love her so much, to have all of these feelings welling up in his chest, but Derek wouldn't trade it for anything, including a spot on the Leafs as a first string player. 

Okay, that might be a little bit of an exaggeration (let a man live), but the point is that this is the best thing to ever happen to him. No big deal. No pressure or anything. 

"Hi," Casey smiles, running her hands along Derek's back. 

"Hey," he croaks, and he's very well aware it's not his best moment, but for some reason, the sentimentality is eating him alive. "Ready for the grand finale?" It's said to tease her, but Casey grins and yeah, that might be better than an infuriated eye roll. 

Instead of being a normal fucking person, Casey shifts under him to grab and unwrap the condom. Turns out her long nails are helpful for some things in life. It's also, objectively, stupid hot that she does this, smiling when it opens, before starting to roll it onto Derek. 

He wasn't expecting it, and not that he's complaining (whoever complains about Casey's hand on their dick is insane), but holy fuck, the way he stutters should be recorded. That's probably what Casey's going to say, because she's Casey and insane, but he refuses to dwell on the fact he bucked into her hand and then absolutely froze. Like a fucking deer in headlights. 

"Now I am," she says with a self satisfied smirk, so really, Derek has no choice but to kiss her as he moves into position. What a princess. Sitting back and letting him do everything, just wanting to be appreciated. God, she's a brat. 

His brat, though. That makes it better. That and the fact that, as he's sliding into her, holy fuck does Derek want to say prayers specifically dedicated to her cunt. "Fuck," he grunts, adjusting his hands so there's one holding her waist and another on her clit, rubbing tiny circles. Casey, being Casey, has decided that biting his neck is how she's going to deal with this, and Derek loves it. 

She's definitely bribed him with orgasms into liking the way that she bites. Besides, the marks say that he's hers. Of course Derek loves them. They're from Casey. 

They've definitely taken their time with this, as proven by the fact that Derek's desperate once he sinks inside. He knew he was hard, knew they might've just invented emotional foreplay, but fuck, Derek didn't expect this. Thank the Leafs Casey said she wants it fast and hard today, because he doesn't have enough brain power for anything else. 

It's over probably too soon, but time is a fake concept when there's a Casey in love with him. Blame it on the fact that she's the woman he loves. Derek's not even entirely sure of the exact praises he's giving Casey, but he does know they manage to cum at the same time, her whines filling his ears. 

"Good girl," he says when they're finished, grabbing a tissue to soak up the mess as he pulls out. Casey's whine is adorable, so he kisses her forehead to hide the fact he likes her so much. 

"We have thirty minutes until we need to prepare for everyone to get home." Even with six orgasms, she's still punctual and scheduled. God, what a weirdo. 

"So you wanna sit here and talk?" Derek guesses, sighing. He'd much prefer they just cuddle like normal people, but then again, Casey's involved. Nothing involving her is normal. Still, if he's being forced to discuss his emotions, then he's pulling Casey into his side so they can cuddle, dammit. 

"I mean, we said some pretty big things. We need to talk about how that affects this." Oh great, she's making this a conversation about their relationship. Or lack thereof, actually. Probably that. Whatever. 

"Easy. I love you, you love me," even if he doesn't believe it fully, "we're both hot and turn each other on, we should date." 

"It's not that simple, Derek, we've got to think of the family. What will George and Mom say? Or Vicki? Oh my god, my grandmother! We'd never hear the end of it. My dad would probably be okay with it if we kept it quiet we're stepsiblings. But Liz, Ed, Marti, what would they think?" Casey's in full list making mode now, even though she should be panicking. She's not; weirdly, she's just laying there, saying these things. It's weird. 

"Who said we're telling any of them about this before university?" He counters. "The kids would probably be fine with it. Smarti's been dropping not so subtle hints for months now. Dad and Nora might not be at first, but they love us, so they'd get over it. And we just won't speak to Vicki or your grandmother." That'll be easy; Felicia is a bitch who doesn't consider the Venturi family good enough to be associated with Casey's allegedly incredible genes. The mothership should take her first. 

"So you're proposing we lie to our family for the next ten months, at minimum, and what, sneak around? Date?" Normally, Casey would sound outraged at the thought. Why is she considering it like a normal person? 

"Sure. I'll even take you on a date and ask you out all cheesy." The thought simultaneously makes Derek nauseous and want to kiss her, so he doesn't kiss her or vomit. 

"Really?" Her eyes are all sparkly. It's pretty. "You're going to ask me to be your girlfriend, like a sap? Aww, you do love me." At times like these, Derek can't decide whether the fact that Casey is the cutest thing he's ever seen is a good or bad thing. "We did this whole thing backwards."

"No, we didn't do anal," Derek corrects, confused. Were they supposed to? It's not necessarily something he's opposed to, but it isn't what happened today. They didn't do doggy or anything else involving someone backwards from the norm either. 

"No, not that," Casey says, chuckling. "I just mean that, in a traditional relationship, we would go on a date, flirt, you'd ask me out, then we'd hook up and move in together in a way that wasn't because our parents got married." Oh. That. 

"I'm kinda surprised you're not freaking out about this." Not that he's complaining, of course, but it's Casey. She freaks out about climate change ten times a day. 

"I already had my freakout. There's a whole journal dedicated to it, and other Derek induced freakouts." Is it weird that it feels romantic? Probably. That shouldn't be romantic, but it's Casey, so it is. This is what women do to men: turn them into weirdly romantic lovesick puppies. 

Then again, if being a romantic, lovesick puppy is what gets Derek right here, with Casey discussing her freakouts that he has caused and curled into him, then he thinks it's well worth it. Just for this moment, where they've decided they're going to date and give this thing a shot. 

It could end in disaster (Casey's actually listing the ways by statistical probability at the moment), but for some reason, Derek doesn't think it will. He thinks this will end in love, not fire. Maybe it's just stupid hope, being naive to the world, but he's got a theory that it's because of Casey. No one else has ever felt this sure, this certain, this real, except maybe Marti, and in a very different way. 

"We're going to be good, and you know how I know?" Derek asks once Casey's listed the ways their relationship could kill them. "Because I love you, Princess."

"And I love you, Der." Yeah, he thinks they're going to be just fine. After all, how hard can a relationship be with Casey by his side?