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Atsushi feels a trickle of sweat rolling down his neck.
He hears the shuffle of papers around him, Kunikida typing on his laptop, pen clicking while a hinges creak where Ranpo spins in his chair. It’s quiet for once, so much so he can hear the faint thrill of the air ventilation, yet can't focus on the work right in front of him. Instead, he sneaks glances to his left before looking away before anybody notices.
Pink lips, stained a dark velvet.
Atsushi shuffles the papers in his hand, face growing hot as time goes by. He sneaks another glance next to him, watching the way his mentor brings the lollipop to his lips once more, a tongue sneaking out to lick at the small treat. Atsushi ducks his head back down, straightening already straightened papers as he fights the impure thoughts from his mind. Still, against his will, he sneaks another glance.
He tries desperately not to stare next to him where Dazai is treating himself to a random lollipop. It’s rose in color and he can’t help but focus on that thought, nor the way it nearly matches the color of the other’s tongue.
He attempts to force out the less-than-pure thoughts from his mind with a quick smack to both of the sides of his face (and he vaguely notices nobody else seems to question it, which— it says a lot, really). Still, he can’t seem to get rid of the thoughts completely.
Especially when he notices the strange air about Dazai today. He hums around the candy, a weird jitteriness in his body as he soaks in the sunlight shining from the window. It’s not too different from usual, but the way Dazai kicks his legs and doesn’t annoy Kunikida (which– wow), Atsushi gets the impression that Dazai is more happy(?) than normal. Certainly more energetic, at least.
He thinks about this until, eventually, a phone rings on Kunikida’s desk, scaring Atsushi so intensely he nearly drops his documents before hiding behind them to hide the fact he was staring. Kunikida picks it up with a quick, “Hello? This is the Armed Detective Agency, what do you need?” It wasn’t at all polite, but not necessarily mean, so Atsushi only sweat drops behind his papers.
A few minutes go by with quick nods and agreeing words from Kunikida that subtly grow more irritated. With a sharp, “Goodbye,” Kunikida slams the phone back on his desk before calling out, “Dazai, you have a package downstairs, something about a dessert. Get it and don’t disturb the waitresses for once.”
Atsushi looks back at Dazai for the first time the phone rang and sees a cheery smile on his face, body bubbling with energy as rises from his seat to rush to the door.
“No promises, Kunikida-kun!”
It earns the brunette a perfectly aimed pen to the head that has him complaining even after the door closes, his voice just an echo beyond it.
Atsushi slumps, feeling rather exhausted and equally ashamed as he’s left with his thoughts.
He thinks back to a few days ago where he and Dazai had finally shared a kiss. He’d like to say it was romantic. It happened under a streetlamp at night, on a bench where they had slowly leaned closer and closer until their lips had touched. Atsushi blushes thinking about how unexpectedly soft Dazai’s lips were and how they glistened in the lamp’s light with an enticing sheen.
Even now, he beats himself up internally for having focused on the way Dazai’s tongue poked through those same lips to lick the piece of candy.
The lollipop must’ve been a strawberry flavor, Atsushi assumes based on its color, but Atsushi also notes how much pinker Dazai’s lips are in comparison.
He processes that obscene thought.
Atsushi buries his face into his hands, uncaring for the way the documents end up sprawled across the floor nor the way Kunikida berates him for it.
Dazai soon comes back from where he was called– after Atsushi was forced to pick up all the papers he had dropped– with a white box in his hands. It has Atsushi curious along with the way Dazai’s smile creases the ends of his eyes. Admittedly, Atsushi thinks it’s a pretty look on Dazai. He looks gentle, more genuine than the tight-lipped grins he seems to think looks normal but just has Atsushi smiling back nervously.
Thankfully, Atsushi doesn’t have to ponder it for long as Dazai walks over, a skip to his step.
“Atsushi-kun, let’s have cake together!”
Atsushi is taken aback by the sudden invitation, watching Dazai’s face for any kind of trickery, but, as per usual, he finds nothing. Not thinking about it too much, he stands as well, smiling back at Dazai who beams. He figures it must be okay to eat it now considering it’s their break.
Right on cue, he sees Ranpo stand. He smiles at him too, assuming he’s going to come over and demand a slice, but instead he heads straight for the door. Atsushi’s smile drops. He guesses Ranpo just didn’t feel like cake today. It’s a shame, looks like Dazai bought an entire cake instead of just a few slices. Too much for just the two of them.
He sees the others standing, so he decides to go over and ask them if they would like to have some cake as well. Once he asks the question, he’s suddenly realizing he probably should’ve asked Dazai first if that was okay. He quickly turns to look at him to apologize, only to find Dazai is still smiling, nodding his head to what Atsushi must’ve been saying.
Surprisingly, nobody takes the offer except for Yosano, who goes back to the infirmary to continue what she was doing. Kenji and Kyouka are apparently on a case together, and Kunikida said a quick refusal before leaving. The Tanizaki siblings rushed out too with an apology and something about family bonding, but ATsushi didn’t want to think too much about it. He went to ask the president, too, but he politely declined. It’s a shame, Atsushi thinks, that only he and Dazai will get to enjoy it. He’ll have to ask Dazai if they can save some for the others later. Though he can’t deny that he’s secretly happy to spend his lunch break with Dazai alone, he laments that it would’ve been fun with the others there, too.
Still, Atsushi questions in the back of his mind why the special occasion. Perhaps he missed something happening that Dazai would want to celebrate? He dismisses the thought, though. Dazai is very impulsive in a way Atsushi almost can’t keep up with most days, so it’s not that surprising if Dazai probably just happened to have a craving for sweets today. Atsushi smiles. Happy, not only that his mentor appears to be enjoying something endearing, but also apparently wanting to share that with him.
Atsushi and Dazai walk into the breakroom. It’s empty, as expected. Dazai sets the box down as he motions for Atsushi to take a seat. Atsushi does, sitting in front of Dazai while he pulls the box open.
Atsushi can’t help feeling a bit jittery as he watches Dazai cut the cake, slightly self-conscious now that they’re alone again since that night on the bench. He gets handed a plate, which he accepts with a quiet word of gratitude. He’s forking at it when Dazai decides to take up much of his personal space by sitting surprisingly close. Atsushi welcomes it as he takes a bite, letting the warmth soothe his nerves.
The cake turns out to be extremely good. The bread seems to be strawberry with white cream. The top of the cake also had strawberries on it as decoration and Atsushi wonders if strawberry sweets are Dazai’s favorite. It would make sense, he thinks.
He takes another bite and this time Atsushi hums in response to the taste. He’s not had many opportunities to get cakes like these, usually a small one here and there when he goes out with Kyouka from time to time. It’s a nice change and Atsushi’s extremely glad Dazai decided to share this with him.
They sit shoulder to shoulder in comfortable silence as they both eat their slices. Or– at least it would’ve been comfortable silence, except Atsushi can’t help but zero in on the sudden seductive way Dazai eats his dessert.
He eats in small bites, licking the icing bit by bit before going to eat the bread. It’s a strange way to enjoy it, but Dazai is weird so he dismisses it. But then he manages to get some on his face, which already kills Atsushi, but then he uses his thumb to wipe away the frosting on his cheek and licks it off.There’s a faint sound of a pop! that tells Atsushi he’d also must’ve sucked it clean. Atsushi feels the blush erupt in his face, fidgeting in his seat as he tries to distract himself with his food.
He carefully scoops a bite, going to eat it when Dazai hums. It’s quiet, barely noticeable, but Atsushi hears it playing over and over again in his mind. He bites down too hard and ends up clamping down on the plastic fork. He tries to focus on the uncomfortable tingle in his jaw from it, but Dazai makes the sound again.
Against all his willpower, he felt his erection pull at the confines of his pants. He can see the subtle tent in his pants from below and panics. He feels mortified. He sneaks a glance to Dazai to see if he’s noticed, but his mentor is still busy eating up the frosting on his plate. Quickly, he hovers his own plate over the area to at least have some decency, very conscious of the shoulder pressed on his own.
For once, he’s wishing Dazai had sat a little bit father from him so he wouldn’t have to make contact with him through such an experience. He curses his body and his pathetic sense of will, feeling the major need to crawl somewhere and hide forever.
After a beat, when Dazai doesn’t bring up Atsushi's strange behavior or the fact that he hasn’t taken another bite of his cake, Atsushi assumes he’d gotten away with it. Except, when Dazai’s finished and sets his plate down gracefully, Atsushi has a whole two seconds to look at him before he’s jumping at the sudden hand on his leg, fingers toying with the flesh of his thigh. He looks up to find Dazai smirking rather knowingly.
Atsushi can feel his face growing in degrees. His cheeks are hotter than he ever remembers them being as he realizes he’s been caught. Forget hiding, Atsushi thinks it might be best for him to send in his resignation letter.
Just as he thinks that, Dazai’s suddenly dropping to the floor. Atsushi startles, confused as the other shuffles randomly. He eventually ends up in front of Atsushi, who's openly gaping as Dazai spreads his legs apart– too shocked to do anything about it— so he can settle between them.
All at once, reality seems to slam into Atsushi's being as he frantically asks, “Wha-! What are you doing?!”
Dazai, one hand to Atsushi’s thigh to spread it wider while he brings his other up to lay a finger against his own lips, looks up at Atsushi more seductively than what should be legal. Atsushi can’t look away as Dazai plays with the flesh of his own bottom lip, pink enticing as he whispers a smooth, “It just looked to me like Atsushi enjoyed seeing me eat, maybe I should buy more lollipops?”
Atsushi freezes.
Atsushi slumps backward, bringing a hand to his burning face as mumbles a defeated, “You knew the entire time.” It’s less of a question and more of a statement. Dazai smiles, an attractive flutter to his eyelashes as he blinks seductively.
“Atsushi kept staring at me rather hungrily, it was hard to ignore.” Atsushi sends him an incredulous look at the statement, wanting to deny but unable to. Dazai’s smile grows wider as Atsushi slumps farther. Dazai seems to take that as initiative and goes to pull at the fastenings of his belt. Atsushi doesn’t fight it.
Dazai seems to enjoy taking his time when teasing Atsushi over the cloth of his underwear, but is at least aware of the limited time they have. (Atsushi thanks whoever’s above for it.) So he ends up rushedly pushes aside Atsushi’s undergarments to pull out his dick. Atsushi feels relieved of the freedom from the tightness of his pants.
Dazai looks it over and makes a pleased sound at the back of his throat. With a near-silent comment at the size that has Atsushi going red over, Dazai leans forward to take an experimental lick. He pauses for only a second before he’s leaning over again to suck on the rest of it.
Atsushi’s breath stutters as he feels a wet and warm feeling around him, tangling his hand in Dazai’s hair as gently as he can, wanting something to grab but not wanting to hurt him. Dazai’s eyes look up at him in either wonder or amusement, Atsushi can’t tell, but he doesn’t have time to think about it because Dazai slides off just as quickly.
Atsushi sulks a little, but Dazai doesn’t respond. Without another word, he covers the entirety of Atsushi’s length with his spit, leaving a cooling sensation Atsushi shivers to before he’s suddenly taking the head in his mouth. Atsushi accidently tightens the hold on Dazai’s hair, letting go to immediately apologize but stops halfway when Dazai quietly moans around him. It causes a strange vibration that Atsushi shudders to. Dazai seems to notice his reaction because he’s repeating the sound before sliding back out and swallowing him deeper.
At this, Atsushi can’t help but let out a small sound of his own, which seems to encourage Dazai. He watches as the other closes his eyes and starts to bob his head, creating a lewd slick noise that has him growing self-conscious over, but also encourages his own want.
He remembers the noise Dazai let out earlier and soothes a shaking hand through Dazai’s hair. He’s unwilling to hurt Dazai intentionally, so he sticks to petting him fervently as he can feel his climax building. He takes note that Dazai seems to enjoy the petting too, vibrating around Atsushi again in an aborted moan, so he continues the motion. He wishes he could touch Dazai too, but this will have to do for now, he supposes.
Slowly, Atsushi’s orgasm builds as Dazai’s pace goes faster and faster. Atsushi can feel his vision going blurry and arms shaking until his vision goes white in what must definitely be the strongest climax Atsushi has experienced. He tenses up, trying to fight against the urge to cry out. He hopes he’s managed to, he’s in his workplace’s break room, after all.
He sincerely hopes nobody heard them.
With that sobering thought, he heaves, attempting to slow his quickened breathing.
He blinks down at his mentor, noticing the tight grip he has on his hair and is quick to let go. He tries to smooth it over as a rushed “sorry” escapes him.
Dazai only hums, unmoving his spot. Atsushi sees him wiggling though, so he lifts a curious head in silent question. He catches a glimpse of Dazai bringing a hand to his mouth as he swallows something. Atsushi belatedly realizes what exactly he’s swallowing and the fatigue suddenly vanishes. He’s sitting up to frantically wave his hands around, face growing red with shame as he struggles to find words.
Before he can get anything out, Dazai is swallowing one more time as he glances up at Atsushi, lashes fluttering attractively as he smiles. He reaches up to plant a quick kiss on Atsushi’s lips before he stands and stretches. Atsushi doesn’t have time to process it nor the vague taste of himself on his lips before Dazai’s leaning down again to invade his sight with the charming view of his face.
He smiles again, a little more softly than the rest of the ones he’s given today that Atsushi vaguely finds entrancing, and saying a cheerful, “Thank you for the birthday gift, Atsushi-kun!”
Dazai stands tall again, straightening out his clothes and playfully skipping to the door. Atsushi just manages to shove himself back in his pants and button it back up before Dazai’s opening it and calling out teasingly to Kunikida. Atsushi vaguely hears the sound of Kunikida’s reluctant response. Apparently, he’s come back from wherever he went, but he can’t think too much about it before his focus goes back to the words Dazai left behind.
He thinks back to today and finally processes the particularly bubbly behavior, the cake, and the daring blowjob he’d unexpectedly bestowed upon Atsushi.
Atsushi grows ashamed as he realizes how obvious it must’ve been.
He rushes to put his clothes and belt back together, fixing his appearance before rushing out the door to wish Dazai a rather late happy birthday.