Archive of Our Own

Izuku and Bakugou have been partners in every meaning of the word for years, and they’re kind of the perfect team. Their coordination and overall understanding of each other both on and off the job is almost psychic in nature, and together, they’re pretty much unstoppable.

But under the surface of a perfect partnership is the core truth that they cannot go more than five minutes without trying to one up each other, and in the spirit of competition, they always find ways to challenge each other—no matter what the conditions are.

Today is no exception.

“It’s a kid who can’t handle their quirk,” Bakugou says as they walk towards the skyscraper-height geyser shooting out of the center of the city.

“Natural disaster,” Izuku says seriously. “I’m sure of it.”

The only clue from the call to the agency was that it’s a giant waterspout, so there’s absolutely no real way to know until they get there, but that’s not the point. What the cause is, doesn’t matter. It’s all about the who with them. Who’s right, that is.

“You sure about that,” Bakugou quirks an eyebrow, and Izuku smiles to himself before pulling his bunny hood over his head.

“I’m confident.”

“Confident enough to make a bet?”

Izuku hums and eyes the geyser. It’s too steady to be man made, so he knows he’s got this one in the bag. Bakugou is just blinded by his own need to win. 

And he’s going down.

“Yeah, I’d say so,” Izuku says, flippant. “What did you have in mind?”

Bakugou flashes a smile. He’s got him right where he wants him. Almost.

“A little winner take all, loser on his knees?”

Izuku hums and smiles to himself, already intrigued.

“You’re not gonna chicken out?”

He can’t see his face underneath the mask, but Izuku turns towards him and tilts his head, and Bakugou knows that innocent little look anywhere. “Have I ever?”

“Fine. I win, you gotta spend the rest of the day with my dick in your mouth.”

“All day?!”

“Is that you backing out?”

“No,” Izuku says, almost accusing, and then his voice finds a new octave while he tries to explain himself out of chickening out. “I just think we need to be clear going in if you mean all day or–.”

“Work day,” Bakugou clarifies. “Jesus, Izuku, I’ve got shit to do. I can’t spend all day with my balls on your chin.”

“It was an important detail!”

“Are you good with that then?”

“Yeah, since you’re wrong, I can’t see there being a problem here.”

“Whatever,” he tuts. “What do you want? A foot massage and a puppy?”

Izuku hums and stretches. “If I win, you have to spend the whole day tomorrow with a pretty pink plug inside you.”

“What?!”

“And! I get to be the one to put it in and take it out.”

“No fucking way,” Bakugou scoffs. “How the fuck am I supposed to work with a cork up my ass?”

Izuku turns towards him, cold and calm. “Payback’s a b word, isn’t it, Kacchan.”

Bakugou pauses and looks off, scrunching his nose. Perhaps he can see where Izuku might have gotten this idea from.

“What’s the problem?” Izuku coos. “I thought you were sure you’d win.”

“Because I am sure. I know for a fact that some asshole with a water quirk shot that big bastard up and doesn’t know how to get it down.”

“Well?”

“Fine,” he says. “You’re on, but we’re talkin’ about that I get to put it in and take it out when we get home.”

Izuku jerks his head away quickly and power walks towards the geyser, unable to project himself into the air because it’s actually a really bad idea to be around surprise spouts of water when you’re airborne. “Nothing!”

“Oi!” Bakugou jogs to catch up. “That somethin’ you’re into? Get back here!”

“Can’t stop, we’re on the job!”

“Deku!”

An hour later, Izuku and Bakugou are standing across from each other in a large puddle of water, the water quirk user standing just off to the side with tape wrapped around his hands.

Izuku is doing an excellent job of avoiding eye contact, and Bakugou couldn’t be more thrilled to be right. Stupid loser couldn’t close his fists because the stream was too strong, but once they got their hands on him, they were able to wrap him up and save the city from a full day pressure wash.

“I’m sorry,” he says, rubbing his taped hands together. “I really didn’t mean to.”

“No problem,” Bakugou grins. “No problem at all.”

“We were happy to help,” Izuku says, voice flat and unconvincing.

He might be a sore loser, but a loser he is.

Bakugou could laugh. Izuku could cry. It’s like the universe has balanced itself out with the power of one rogue waterspout.

By the time they get back to their office, their costumes are dry, and all that’s left is the report to write. Fortunately, it only takes one person to write a report for a quirk accident. Unfortunately, that means that Izuku has to get underneath Bakugou’s desk sooner than he thought.

“You can back out,” Bakugou shrugs. “I won’t make you do it.”

“Oh no, I’m gonna do it,” Izuku says, determined as he yanks off his gloves. “You’re gonna rue the day, Kacchan.”

“Rue the day? You gonna bite my dick off?”

“No,” he shakes his head with his face scrunched. “But eventually you’re gonna get tired, and I’m not gonna let you cum because that wasn’t in the deal.”

“Now wait just a minute,” Bakugou says, putting his hands on his hips. 

“You should have thought about that when you made your bet,” Izuku says.

“Fine,” he waves and marches over to his desk. He plops down in his chair and furiously unzips his pants. “But you’re gonna be begging me to cum before this is over with.”

Izuku walks over and climbs down underneath his desk with a self assured grin that Bakugou would gladly wipe off for him. “We’ll see about that.”

Bakugou spreads his legs, and because Izuku is evil, he makes sure to look up at him with those big baby deer eyes of his while he wraps his lips around Bakugou’s cock. He lets his jaw go slack as he slides it in, still soft, but it’s not soft for long.

He fills on Izuku’s tongue, and Izuku adjusts to the weight of him, feeling the growth in the tension of his jaws, but he never takes his eyes off of him. He blinks slowly, relaxing as he gets used to him, and Bakugou exhales a deep breath through his nose.

They might both be bastards, but they both feel better when Izuku is filled one way or another. Bakugou knows where he is when he’s got his cock in him, and Izuku gets to adore his Kacchan so much better this way.

They were made for each other.

But this time this isn’t just some mutual display of affection. This is business. They may be stupid in love, the best team of all time, and two of the world’s top heroes, but a bet’s a bet, and Bakugou isn’t going to make this easy on him.

“You look good down there,” he says.

Izuku’s eyes flicker shut, surprised by the compliment, but of course Bakugou would do this. Izuku’s eyebrows draw together as he tries to keep himself focused and his head as still as possible. He won’t give in so easily.

“Always had a good mouth on you, didn’t you, Izuku?”

“Mmph.”

Bakugou laughs, and Izuku squeezes his eyes shut, frustrated. This is going to be a long day if he keeps playing dirty like this.

“Mmm mmm mmm-mmm.”

“What?”

Izuku pulls off and gasps, a string of spit still connecting them to each other. “I said write our report.”

“Oh is it the end of the day already,” he gestures, and Izuku scowls. “Yeah, yeah, I got it, I’ll stop fucking with you.”

He moves his chair up so he can reach his keyboard, and Izuku takes him in his hand and gives him a few preparatory pumps before resuming his task. 

It’s oddly nice to write his report with his dick out, and Izuku quite likes his spot under the desk. It’s dark and quiet down there, and Bakugou idly keeps his hand in Izuku’s hair when he doesn’t need both to work. Punishment or not, this could easily turn into a thing for them.

Izuku closes his eyes and Bakugou softens slightly on his tongue, relaxed and distracted while working, and Izuku is in serious danger of taking an open mouthed nap for the rest of the day.

Bakugou probably wouldn’t give him hell for it until they got home. Izuku doesn’t get enough sleep, in his opinion.

“You’d list this as a quirk accident, wouldn’t you?”

“Mmhm.”

“Yeah, that’s what I thought.”

“Mmhm.”

“Watch the teeth.”

“Mmm-mm.”

“Yeah, yeah, I know. It’s fine.”

Bakugou looks down at Izuku and his wide, watery eyes, mouth stuffed and full and smirks. Izuku glares back up at him, quiet and furious. Always a sore loser.

There’s a knock on the door, and they both flinch, but Bakugou’s hand goes to Izuku’s head before he can pull off of him. The terms said for the rest of the day, not until somebody drops by.

“Yeah?” Bakugou shouts.

One of the agency secretaries opens the door and sticks her head in. Izuku is as quiet as a mouse under the desk, and Bakugou has an A plus poker face. They could do this all day.

“Sorry to bother you, Dynamight, but have you seen Deku?”

Izuku jerks, and Bakugou pushes his head closer towards him until he hears a small choking sound. Bakugou clears his throat and shakes his head. “Nah, think he went to a meeting. What do you want?”

Izuku closes his eyes and prays he doesn’t get caught. He can’t check to see if his shoes are sticking out because Bakugou won’t let him move, but maybe if he holds his breath, she won’t notice him.

It’s kind of exciting this way.

Sure he’s supposed to just sit still for a few hours, but what if they have a slow day in the future? Could they be under the desk kind of guys? Just for fun? It’s certainly something to consider.

“Channel 3 wants an interview.”

Izuku’s eyes widen. As much as he hates doing interviews, he still gets a little excited when someone wants to interview him. Not on the scene coverage, but an exclusive with him. Because he’s a real hero. 

Bakugou glances down at him as nonchalantly as possible. Izuku blinks twice, and Bakugou quickly looks back at her. “When is it?”

“Tomorrow morning,” she says. “10:30.”

He looks down again, and Izuku blinks once.

“I don’t think that’s gonna work. He’s probably got the afternoon open, though.”

“I’ll call them and come back with a new schedule.”

“Just email it to him,” he squints, hoping she gets the message, and based on the impressive little shoe spin print in the office carpet, it looks like he got his point across.

As soon as the door closes, they both relax again. 

That was close. 

“You were about to chicken out and pull off weren’t you,” Bakugou says, his fingers webbing against Izuku’s scalp.

“Mm mm.”

“Pft. Yeah you were, you got scared.”

Izuku furrows his brows up at him.

“Relax, we’re not gonna get busted,” he rolls his eyes. “You think anyone is gonna stay in here long enough to look under the furniture?”

He has a point.

“Chicken shit,” Bakugou smirks. Izuku blinks once angrily. He is not a chicken shit. “You gettin’ tired yet.”

“Mm.”

“Good,” he says. “Let me finish filling this shit out so we can bail.”

“Mm mm.”

“No?!”

Izuku looks up at him, coy, and hollows his cheeks, and his promise that he wouldn’t let him cum comes back to mind.

“You little fucker,” he scowls, and Izuku makes the closest expression to a smile that he can manage with his mouth stretched open. “Fine.”

Next time he’ll word his bets better.

This is still pretty good though.

It’s warm, soft, wet, and Izuku is enjoying himself. His eyes keep lulling shut, and Bakugou is pretty sure if he could slip his foot between his legs right now, he’d find him stiff and waiting.

He twitches just thinking about it, and Izuku feels it. A thin line of tears shine around his eyes as Bakugou presses at the back of his tongue, but he’s fine. He won’t give up so easily.

And now this has become a game of waiting each other out. A new competition. Either Izuku will pull off, call off the bet, and it’ll stop there, or Bakugou will crack and cum down his throat, or Izuku will run out of patience and make him. The first one to show weakness loses, and neither are willing to let that happen.

There’s too much at stake here.

Such as pride.

And for Izuku and Bakugou, pride is everything.

“Yoohoo!”  

Kirishima flings the door open, not bothering to knock, because why would he have to knock? This is his best bro and best bro in law’s office. This is practically home away from home away from home. 

Izuku flinches in surprise, but this time, getting caught would only be embarrassing and not life ruining so he doesn’t try to pull off. Bakugou’s hand goes to the back of his head anyway.

Stay, it says.

Izuku doesn’t move.

“Close the door,” Bakugou says.

“Oh sure,” Kirishima says, and then he looks around the room with a confused expression. “Where’s Midoriya?”

“Under the desk.

“Mmph?!” Izuku yelps in mixed surprise and betrayal, Bakugou holding him in place with his fist in his hair.

“What’s he doing down there?”

“He lost a bet.”

“Oh okay,” Kirishima says. “Hey, you’re needed upstairs. One of the sidekicks needs to be debriefed on the smuggling ring you sent them after.”

“Shit.”

“Mm!”

“No way, asshole, a bet’s a bet,” he says, and then he sighs because he actually has to go, and if he leaves, that means Izuku gets to stop, and if Izuku stops because Bakugou has to leave, then Izuku wins. He can’t let that happen, but how is he supposed to get out of this without losing? He looks at Kirishima and raises an eyebrow. Maybe there’s a way around this. “Hey, Eijirou, you busy right now?”

“Not really, why?”

“Swap out with me.”

“What?”

“Izuku’s gotta keep my dick in his mouth for the rest of the day, but he can’t do that if I’m not here,” Bakugou says casually, like this is normal and the usual thing that happens in people’s offices. He looks down at Izuku who’s still warming him. “You’re fine if we switch, right?”

“Mhm,” Izuku hums and blinks twice.

Bakugou looks back up at a very pale Kirishima. “See, he’s cool with it.”

Kirishima scratches his jaw in consideration. “I don’t know, man. I’m not really good at the whole cockwarming thing. I mean I either get too excited and cum early or I can’t keep it up that long.”

“That’s fine,” Bakugou waves. “Deku can just blow you then, it won’t take me more than ten minutes to do this anyway.”

Izuku pulls off and gasps for air and presses his fingers against his own cheeks. “Yeah, I don’t mind doing that. My jaw needs a break anyway.”

Bakugou tucks himself away and pushes his chair back so he can leave. “Thanks, Ei, I owe you big time.”

“Gonna say we’re gonna be even,” Kirishima says, eyes wide in shock.

“Haha, yeah. Don’t let him come out if you finish, he’s still gotta pay up.”

“No problem, dude! Sorry, Midoriya.”

“Oh no, I’m fine with it!”

Kirishima can’t see him, but he knows he’s smiling. That’s a relief, if he’s honest. Yeah, he can help them out here. He’s got some time to spare.

“Yeah, sure, I can help,” he says. 

“Great,” Bakugou says, and he hurries out of the room quickly enough to be called sprinting.

Kirishima gets into Bakugou’s chair and scoots forward with the enthusiasm of a man who doesn’t realize he’s about to have his dick sucked by his best friend’s boyfriend.

And then he looks down at Izuku’s flushed face and glistening eyes, and it hits him.

He’s about to get his dick sucked by his best friend’s boyfriend.

“You sure about this?”

“Yeah,” Izuku waves. “Do you need me to get you started, or do you prefer doing that?”

Kirishima usually prefers a good thirteen minutes of kissing and heavy petting before he gets his dick out actually, but time’s a ticking, and this is just for their weird bet thing, anyway. What he wants doesn’t matter.

He’s shy when he pulls himself out, and the nerves keep him from getting as hard as he wants to be, but the look on Izuku’s face nudges him the rest of the way.

“Oh my god,” Izuku says, eyeing the absolute piece of meat hanging out of Kirishima’s costume. It’s thick at the base, and it swells a dark purple at the tip, heavy and gorgeous. The thick mass of black curls makes Izuku’s mouth water, and he suddenly forgets his jaw was sore at all. “Kiri, I had no idea.”

“What,” he covers himself in a panic. “Is there something wrong?”

Izuku shakes his head in awe and moves Kirishima’s hands away so he can see it again. “Your old boyfriends were so lucky.”

“Nah,” he laughs nervously. “I mean, Kats’s is probably better than mine, anyway.”

Izuku takes Kirishima in his fist and strokes him as he smiles up at him, eager and excited to have someone to talk to. Cockwarming is not the most social activity in the world. “I love Kacchan’s, don’t get me wrong. He tastes amazing, and it’s got a nice curve to it so we can try a lot of different angles, but it’s like loving chocolate cake and strawberry ice cream at the same time, if you know what I mean.”

“Oh yeah, sure,” he says. “So it’s… okay?”

Izuku nods, excited. “I love it. It looks so heavy, but, like, in a good way. I really wanna see for myself what it feels like. I mean, I’ve only ever sucked on Kacchan’s before, but I’d like to try, if that’s okay.”

Kirishima has never had someone so enthusiastic about his dick before, but he certainly can’t complain.

“Yeah, go for it.”

Izuku wets his mouth before dragging his tongue along the length. Kirishima leans back in the chair and shifts his hips down to give Izuku a better angle, but he’s not sure if he’s going to be able to hold himself together until Bakugou gets back.

“Mmm,” he hums as he drags his lips and nose over him, savoring Kirishima’s cock before he even gets him in his mouth. “It’s so good, Kiri.”

Kirishima swallows. “Thank you.”

Izuku swipes his tongue over the tip before he lifts him so he can lick across the bottom, eyes closed in a quiet bliss.

“Can I have more? I really want you in my mouth.”

“Uh huh,” he nods, already a little out of it. “Whatever you want, dude, I’m here to help.”

And then Izuku takes him in, all the way to the hilt, and he buries his nose into a mound of luscious curls that a lucky man could get lost in.

Izuku takes a deep breath through his nose once he gets used to the new weight, and then he breathes Kirishima in, and he immediately gets drunk on the soft musk that’s so new and welcoming to him. He could easily see himself crawling into bed after a long day and nuzzling his nose into Kirishima’s crotch just to ground himself.

Kirishima groans as he slides over Izuku’s tongue all the way to the back of his throat. Izuku’s lips are stretched full around him, enough to look uncomfortable, but the lidded eyes locked on his face are filled with so much warmth and—if he were to put a name to it—happiness, that Kirishima doesn’t think he has to worry about him.

Izuku slides his hands around Kirishima’s waist, digging rough and warm fingers into the skin, and it’s so electric, Kirishima can only wonder if he’s using one of his mysterious quirks on him.

Or maybe that’s just Izuku.

Bakugou is a lucky man.

Bakugou is a really lucky man.

Izuku swallows around him, savoring and tasting him, and starting to crave. What if he could do this all the time? He doesn’t think he could get tired of it, and if Bakugou took him from behind, Izuku would be completely filled, and that’s his dream.

It’s what he’s wanted for so long, but they could never make it work by themselves, and they’ve also never found anyone they were both equally comfortable with.

And sure they’ve tried using toys, but it’s not enough. They’re cold and lifeless, and it’s not the stretch that he’s after, it’s the closeness and the deep connection that comes from being filled by someone worthy, someone he trusts.

Izuku doesn’t see why he can’t be close to Kirishima too if it could be easy like this? He’s a good guy, he would help if he knew how much Izuku needed it, and Bakugou respects him enough to call him his best friend so he’s not just some random extra.

On the other end, Kirishima is in agony.

He signed up to help with their bet, and it seemed easy enough, but he didn’t realize going in that he was about to get the best blow job of his life from someone who’s only doing this because he lost something.

And as much as Kirishima tries to convince himself that it’s not even a big deal, he really isn’t going to be able to forget this, not for a million years. Izuku’s mouth is so plush, and Kirishima’s always had problems with old partners choking on him or getting tired too quickly because of his size, but Izuku acts like he can’t get him deep enough. Like he wants more.

Kirishima isn’t sure how much he’s supposed to do as a sub in, but he can’t just sit here and let Izuku take care of him without doing anything in return, especially if he wants more. That’s just not how Kirishima rolls, and if he knows his best friend like he thinks he does, it’s not how Bakugou rolls either.

But he can’t touch him from here. Izuku is hidden under the desk, and the appeal here is definitely the fact that he’s a dirty little secret, but he wants to touch. He wants to give.

He raises a hand hesitantly and rests it on Izuku’s cheek.

The soft brush of Kirishima’s fingers are enough to make Izuku wish he could purr. He moans softly around his cock, a happy little noise of gratitude. This means he’s doing well, doesn’t it? That Kirishima is enjoying this?

He rubs his thumb against Izuku’s cheek, and Izuku closes his eyes. Kirishima slides his fingers through Izuku’s geyser matted curls and presses his hand flat against his scalp. Izuku’s eyes flutter, pleased.

A part of him is filled, and Kirishima is enjoying himself. He couldn’t be happier.

“Oh man, Midoriya,” he says quietly. “That feels so good.”

Izuku pulls him deeper down his throat and hollows his cheeks in appreciation, and a small gasp escapes Kirishima’s lips.

Kirishima pants as Izuku licks and sucks, and he guides his head with his hand, not even realizing he’s doing it, urging him to go faster, but Izuku has plenty of experience with a boyfriend who always wants more. He knows how to resist, to hold the pace, and he knows that Kirishima will like it so much more if he builds him up to it.

Izuku is going to leave an impression here if he has anything to say about it

And Kirishima has never had head like this before. It’s always been so rushed and fevered, with him closing his eyes and willing himself to cum so the other person doesn’t get annoyed from having to stroke him off and suck his tip at the same time for too long.

But here Izuku has his hands on his thighs, pulling him closer and pawing at him like he could do this for hours.

The terrifying thing is that he might actually try.

Izuku is giving it his all. He’s going to make sure that when Bakugou gets back, he hears that he didn’t once slack on his bet punishment, if this could be called a punishment. 

Izuku guesses that’s what Bakugou’s thinking, that as soon as he left, Izuku chickened out and then he and Kirishima talked the whole time, but no, he’s going to come back and see that Izuku made Kirishima cum right here in Bakugou’s office chair at Bakugou’s very own desk.

But he’s not cumming. No matter what Izuku does, Kirishima only scrunches his face and whines softly, but he doesn’t cum.

Is Izuku not doing this right, or is he holding back on purpose?

Of course he doesn’t think he’s allowed to. He was already worried that he would be bad at letting Izuku warm his cock, but releasing himself down Bakugou’s boyfriend’s throat? Izuku isn’t stupid. He sees the hesitation—the I can do this much, but if I do more, I’m bad.

But Izuku wants him to cum. He wants to taste the salt on his tongue and swallow him up because Kirishima is so good, isn’t he? He was willing to help them when they needed him to, and he deserves a reward, Izuku thinks.

Unfortunately he can’t tell him that when he can’t take his mouth off of him. He can only try harder to bring him closer, and quietly will Kirishima to stop fighting it.

Kirishima fists Izuku’s hair with one hand and grips the seat with the other. He’s close, but if he can just make it five more minutes, he can sneak away and jerk off in the bathroom toilet, and then Bakugou won’t have to kill him.

The thought of Bakugou being upset with him is enough to make him forget where he is or what he’s doing, and surely cumming anywhere near his boyfriend would have to piss him off a little.

Maybe this isn’t the kind of favor good bros do.

The door opens quickly, and Bakugou slips in before there’s even a chance that anyone can see Kirishima’s flushed and twisted face.

“Well would you look at that,” Bakugou says, and he’s smiling. Wicked, proud, maybe a little hungry. “He’s good isn’t he?”

Kirishima nods, his mouth slack. Izuku doesn’t stop even though he knows they can switch now, and frankly, Kirishima doesn’t have the mind to remind him.

“Not gonna tell you what to do, but he likes being told if he’s doing it right.”

“Is that okay?”

“Fuck yeah, it is. Little shit earned it, didn’t he?”

“Yeah,” Kirishima pants. “Feels good.”

Bakugou leans forward with both hands on the armrests. This is a matter of pride here. Bakugou is the best, which means he can only be with the best, and Izuku’s not just anyone to him. “Just good?”

Kirishima shakes his head. “I’m trying so hard not to cum here, bro, he’s killing me.”

Izuku hums around his cock and sucks harder, if that’s even possible. How he’s not tired yet, Kirishima will never understand.

The secret is Izuku will never get tired. Kirishima is fighting a losing battle.

“What you tryin’ so hard for,” he says, his voice low. “You want to, don’t ya?”

“Yeah, but he’s your–,” Kirishima swallows.

“Yeah, he’s mine, alright.”

“Are you ready to switch back,” he asks, out of breath and squeezing his eyes shut against the build up coming for him. Bakugou being this close isn’t helping at all. He smells like sweat and glycerin, and the way he’s crowding him right now makes Kirishima feel like he’s about to get eaten alive. 

“Nah, you can finish,” he says. “I can wait.”

Kirishima looks down at Izuku, still working on him even though Bakugou is back. “Midoriya?”

Izuku pulls off of him and wipes his mouth on the back of his hand. “I think someone should kiss him. I didn’t do it because we didn’t have a chance to talk about that, but I think that’s what he wants.”

Bakugou raises his eyebrows, and Kirishima flushes. He squints slightly and hums, leaning forward until he’s just inches away from his mouth. “That what you want, Ei?”

Kirishima can’t answer that honestly without completely ruining his own life. Bakugou doesn’t jerk away and laugh like it’s one big joke, and his traitor eyes dart down to a pair of lips he may have thought about before, once or twice.

Bakugou doesn’t hesitate. Izuku’s got good instincts, and Kirishima is practically squirming beneath him as he stares hopelessly at Bakugou’s mouth.

He closes the gap between them with a single press of his lips. Kirishima inhales sharply in surprise, but he doesn’t push him off so Bakugou kisses him like he kisses Izuku when he’s feeling mean, because that’s the only way he knows to make another person moan into his mouth without touching them.

And Kirishima melts like butter. Bakugou’s mouth is soft because his quirk makes everything about him soft, and Kirishima’s lips slide against his until they lock together perfectly. 

All the muscles in his body relax.

Maybe this is what good bros do.

At least it should be.

Bakugou pulls back slightly and smirks. “Oh yeah, I see what you mean. Izuku, forget the bet. New plan.”

“Got it,” Izuku says, determined and still under the desk.

Kirishima looks at them both in confusion. “What plan–?”

And then Bakugou has his face in his hands, kissing him like this isn’t something they’ve never done before, and Izuku is between his legs working him until Kirishima’s cock practically throbs for it.

“We’re gonna make you feel good since you helped us out,” Bakugou practically growls. “And since we’re trying so hard, if you hold back, Deku’s gonna get his feelings hurt.”

“Okay,” he nods, and his best friend’s tongue is in his mouth, flicking against his own while his best friend’s boyfriend gives him the best blow job of his life.

And it’s all for him. They want him to cum, and Kirishima wants to cum for them. 

Screw the bet, this is a different, more exciting kind of pride. Bakugou and Izuku tag teaming Kirishima? They’re gonna show him that they’re the best, because hell yeah they are. 

Bakugou swallows up a groan as he drags a hand down Kirishima’s body. He feels the muscles and scars etched beneath, but then he finds what he wants. He squeezes Kirishima’s chest before he takes a sensitive nipple between his fingers and squeezes. Kirishima whimpers into his mouth.

“Hey,” Izuku protests. “You’re gonna make him cum before I do.”

Bakugou sighs, annoyed, and pulls back. “Sorry, the nerd’s in charge here.”

Kirishima makes a face and looks at them both. “How can you tell?”

“You get used to it,” he says. “Okay if I watch?”

“I’m sure that’s fine.”

Kirishima has no idea if that’s fine or not, but he thinks he’s into it. 

Bakugou moves to sit on the desk across from him so Kirishima can see them both at once. He kicks off his boots and unzips his pants and pulls his dick out. “You mind?”

“No, no, go for it,” Kirishima says, and Bakugou puts both feet on the armrests. He wears stirrup leggings, Kirishima notes. Fascinating. 

Bakugou touches himself while Kirishima keeps his hungry, glazed eyes on him, watching every movement like a hawk. It’s not even intentional, but Bakugou loves it either way.

“I like the way you look with Izuku’s mouth around you,” Bakugou says. “Should do it more often.”

If Izuku hadn’t just spent the last ten or so minutes considering the same thing, he might have choked on the idea, but they always have been on the same wavelength, haven’t they? And Bakugou may just be teasing Kirishima up there, but it certainly sounded like a real suggestion.

Kirishima, who has not yet considered a second time at all, has a small heart attack. “What?”

Bakugou shrugs. “I gotta be there though. To supervise.”

Izuku makes an unseen face. He does not need supervision, thank you very much. He’s normally quite good at sucking people (Bakugou) off, but this one is just showing too much resistance. 

New plan.

“Kiri,” Izuku asks as sweetly as he can, and Kirishima looks down at him quickly between his legs, snapping out of a daze. “Can I please make you cum? That would make me so happy.”

“Oh fuck,” Kirishima lets his head fall back against the chair. “Yeah, yeah, okay.”

Bakugou didn’t even have to see him to know what kind of look Izuku was giving him from down there. Probably even threw in a lip quiver to make it count. Fucker knows what his face looks like and has figured out how to use it.

Kirishima gasps and pants, trying to keep as quiet as possible so that the whole agency doesn’t hear him as Izuku’s mouth does things he didn’t know a mouth could do, and Bakugou sits across from him stroking himself at a lazy pace, looking like every wet dream fantasy Kirishima has ever had. 

The fact that he just has to sit back and watch is torture when he’s such a hands on kind of guy, and that’s after not being able to give Izuku anything.

This laying back and letting things happen is not his style, but it still feels too good to stop them. Next time, he wants to get them both back, though. He’s not sure how, he’s never been with two people at the same time before, but he’s eager to figure it out.

And the Izuku takes his tongue and flicks it just right, and Kirishima’s body tenses.

He doesn’t have to say anything. He grips the armrests, a silent cry on his lips, and Izuku shifts to take him all.

“Bro, I’m gonna–.”

“Show him how good he’s doing, Ei, he loves it.”

And Kirishima cums, and he feels so bad for Izuku because he can’t seem to stop cumming. He practically gushes down his throat, and Izuku grabs onto his thighs as he swallows, and swallows, and swallows.

“Ah man,” he says, out of breath and boneless in Bakugou’s office chair. “Sorry, Midoriya.”

“No, that was great!” Izuku says, on his hands and knees and thoroughly exhausted. “Thanks a lot! Can I come out now?”

“Yeah, fuck it,” Bakugou says, putting himself away. Kirishima isn’t one hundred percent sure what’s happening now, but he learned a long time ago to never try to guess what those two are thinking.

“Great,” Izuku gives his neck a few good cracks. He taps Kirishima on the knee so he can let him out.

“Oh, my bad!” Kirishima says before pushing the chair back for him.

Izuku smiles brightly as he comes back up to the surface. “No problem, hey can I ask you for a favor?”

“Yeah, sure,” Kirishima says. He’s not sure how much more he can do for them at this point without an energy drink, but he’ll try his best.

“Can I kiss you?” Izuku asks. “I mean Kacchan did, but I kind of wanted to too…”

“Oh, you don’t have to, I mean I know I’m not–.”

“Oh right, you probably wouldn’t want me to because of where my mouth just was,” Izuku laughs. “Sorry, I wasn’t thinking.”

“No! Yeah, I want to, that doesn’t bother me at all!”

Izuku smiles shyly if a person could be shy after sucking the soul out of a guy, and then he kisses him soft and appreciative. 

And that’s when Kirishima stops feeling like he was just tossed into a weird Izuku and Bakugou horny vortex because he’s kissing Izuku who wants to kiss him while Bakugou sits back and watches.

He pulls Izuku onto his lap and holds him up with one palm on his thigh. Izuku’s kisses are smaller than Bakugou’s, but they send little sparks all throughout his body just the same.

Izuku hooks one arm around his neck and rubs Kirishima’s chest with the other, and there’s a certain kind of comfortable euphoria Izuku gets from kissing him. He’s not sure how Bakugou was able to stop himself. This is wonderful.

Their mouths part, and heads tilt for each other, and they both fall into a sort of gentle and occupied rhythm. They could both do this all day, and both might be hoping that they can.

“Gettin’ greedy there, Deku?” Bakugou teases, and Izuku gives him an affirmative hum, completely focused on Kirishima.

And then he has a thought.

Izuku pulls away, red faced and smiling, and he turns to Bakugou with lazy, hopeful eyes, willing him to read his mind.

“Really.”

“It’s a good option,” Izuku tries.

“You can’t just throw your arms around Eijirou, look at me like that, and give me can we keep him eyes, you little bastard.”

“I don’t see why not,” Kirishima mutters, scratching his jaw.

“Because you’re not a dog, dumbass,” he says before looking back at Izuku. “Is that what you want?”

“Do you? I know you were watching us.”

“You couldn’t see shit down there, you don’t know what I was doing.”

“Was he watching?”

Kirishima puts his chin on Izuku’s shoulder and grins. “He was watching.”

“How’d he look?”

“Horny.”

“Don’t you fuckers team up on me,” Bakugou shouts. “Eijirou, do you have any idea what you’re saying yes to, or are you just cummed out.”

“The second one,” he says, and Izuku laughs.

“It’s up to you,” Izuku says. “You can say no.”

“I’m not saying no, but he’s gotta say yes too, fucker.”

Izuku hums and turns to Kirishima, gently cupping his cheek in his hand. “Kiri, I have a problem.”

“What’s that?” Kirishima blinks up at him.

“I’m–,” he flushes and turns back to Bakugou.

“Don’t you act bashful now.”

“Kacchan,” he pouts.

“Fine. Izuku wants to take it from both ends, and I’ve only got one dick.”

Izuku looks at Kirishima and frowns. “Toys feel like nothing. I need a person. It’s important.”

“Yeah, of course,” he says. “That sure is a problem.”

“Yes it is.”

“So what are you guys gonna do? Couldn’t you just ask someone to join you?” Kirishima asks, and they both just blink back at him. “Oh, you mean me, got it.”

“Only if you want to,” Izuku says, rubbing a finger down his chest.

“Katsuki?”

“Well? You wanna fuck Izuku with me or not?”

Kirishima leans over so he can look at him seriously. “Bro, this is your boyfriend.”

“Supply and demand,” he waves. “He needs a second cock and you’ve got a good one.”

He makes a good point.

Then Bakugou leans in, his voice low and dangerous, and Kirishima’s chest tightens. “Besides, I saw the way you were lookin’ at mine. You wanna watch me fuck the nerd with it?”

Kirishima swallows. “Maybe.”

“Great!” Izuku cheers, snapping him out of it. “Me and Kacchan can’t cum until we’re off work because of someone’s bad bet conditions, but if you wanna drop by later today for a test run, we’ll probably be going all afternoon.”

“Seriously?” Kirishima gapes.

“Yeah, we’ll leave the door unlocked,” Bakugou says. “Just drop in and take whatever end I’m not using, he won’t care either way.”

Izuku takes Kirishima’s face in his hands and looks at him sincerely. “You would be doing me a huge favor, Kiri. I would owe you big time.”

Kirishima laughs nervously, realizing what he’s agreeing to and somehow being super on board with it. “Yeah, anything to help out two of my best bros.”

Izuku leans towards his ear and drops down to a whisper. “Kacchan forgot to mention he’s always wanted to watch someone fuck me so he’s really excited.”

“Deku, shut the fuck up!”

“I’m just saying! We both get what we want out of this, it’s a good idea!”

“Yeah, and what does he get out of this,” Bakugou waves. “Did you think of that?”

Kirishima squeezes his arms around Izuku’s waist, his face burning hot as he says what he wants, but if they’re putting everything out on the table, he should too, shouldn’t he? “Can I, umm, get you both off? That’s kind of what I’m into. I mean I’ve never been with two people before, but I like making people cum, even if I don’t, you know?”

They both pause for a moment and look at each other.

“Yeah, sure.”

“Of course. Whatever you want, Kiri.”

“Awesome,” he smiles brightly. “Then I’m in! You won’t regret it I promise!”

“It’s not a job interview, idiot,” Bakugou tuts.

Izuku wraps his arms around Kirishima’s neck and frowns. “Don’t be mean to him, he did so well for us today.”

“I’ll be mean to whoever the fuck I want,” Bakugou says and turns to Kirishima with a raised eyebrow. “Don’t you have some work to do, Red Riot.”

“Oop!” Izuku hops up off of his lap. “Sorry!”

“No problem, dude,” Kirishima stands up and stretches. “Good luck with your smuggling thing. Do you need help with that, by the way?”

“Depends on what the sidekicks find.”

“Okey dokey! So, I’ll… see you guys, later?”

“Yep!” Izuku says cheerfully. “We’ll order in. Text us what you want for dinner.”

“Sure,” Kirishima says, and he leaves to return to work like nothing ever happened.

Bakugou is still sitting on the desk when he leaves, content for someone who didn’t get to see his win all the way through. Izuku is a little disheveled, and his hair is sticking up at the sides from where both he and Kirishima kept tugging at him, and he can’t help but think hell yeah, that’s all mine.

He pulls Izuku between his legs and kisses him, tasting Kirishima on his tongue and smelling an unfamiliar hint of musk above his lips. “What’d he taste like?”

“Amazing,” Izuku says, fingers digging into Bakugou’s costume.

“Better than me?”

Izuku shakes his head. “You’re both so different, it’s amazing. You’re a little sweeter because of your quirk, but he’s got this… I don’t know, you’ll just have to try him out to see for yourself, but I can’t believe I get to have both of you later. I wanna try blowing you at the same time, what do you think?”

“Fine,” Bakugou hums. “Horny little shit.”

“Who do you think I got it from?”

“Shut up.”

Hell yeah he got it from him. First and last, baby. 

Sort of.

“This works, doesn’t it? We didn’t want to use a stranger, and we’re both so picky…,” Izuku says, pulling back. 

“Ah yeah, I’m not letting some shithead loser get his hands on you,” Bakugou says, a little mean, a little in love. “Eijirou is fine. I trust him.”

“Good,” Izuku smiles and kisses him again. He might like kissing him a little too much, but when a person spends their entire life thinking the whole world revolves around someone, it can make them a little indulgent once they have them.

“You sure found a good way to get yourself out of your punishment,” Bakugou says against his mouth. “Chicken shit.”

“It was your idea.”

“Yeah, whatever,” he grumbles and grabs his waist.

“How long do we have left? I didn’t have a clock down there.”

“‘Bout an hour,” Bakugou says, and Izuku scrunches his nose, displeased. “You wanna leave early?”

Izuku frowns. “What about our waterspout report?”

“Finished it in like ten minutes,” he grins. “Get your shit, my balls feel like they’re gonna fall off.”

“Next time make a better bet.”

“You wanna make one now?” Bakugou raises an eyebrow. 

“Maybe,” Izuku grins. “What did you have in mind?”

Bakugo hums and pulls him back to his mouth. “If Eijirou comes over tonight, we get to spitroast you.”

“And if he doesn’t?” Izuku frowns. “How do I get a win here?”

“I’ll wear your stupid little plug tonight around the apartment.”

Izuku perks right up at the prospect. “I get to put it in?”

Bakugou rolls his eyes. Filthy little pervert.

“Yeah, fuck it,” he says. “You in?”

“Oh yeah,” Izuku smiles. “I’m in.”