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And they were roommates (Oh god, I want to fuck my roommates)

Summary:

Irritated by his own feelings for his attractive roommates, Kokichi almost abandons the hope for any progress, until he just so happens to hear Rantaro and Shuichi having sex.

His curiosity gets the better of him, and the stone gets rolling.

Work Text:

Living together with two handsome roommates might be Kokichi's personal hell.

Especially because one is as dense as the other, and both completely oblivious to the tension that's been building between the three of them ever since they moved into this apartment together.

Rantaro would pay the rent by himself if they'd let him, but thankfully, at least in that regard Shuichi isn't as slow to catch up. They've met in college and have been good friends ever since then, graduation and beyond, but moving in together is a whole different thing. 

Seeing Rantaro half naked in the morning unfortunately does things to a weak, tired mind, and even though he didn't want to admit it, Kokichi has been developing a frankly embarrassing crush on both of them.

And apparently, both of them are none the wiser, brushing off his hints as pranks and lies. 

And Kokichi figured if he can't land the shots himself, maybe he can at least manage to hook those two up together to finally escape Shuichi's sad puppy eyes that hang on Rantaro each time he leaves the room. He's too anxious to ever make a move, and Rantaro would never dare to impose. 

 

It's late today and Kokichi is on his way to his room at the very back of the hallway, passing Rantaro's room when a noise makes him stop. He knows exactly what that was, and he should have hurried past it the moment he heard Shuichi moan from beyond the door, but curse his curiosity and his own fantasies.

Kokichi approaches the door and hears the rhythm of the bedframe hitting the wall, layered with deep moans and strangled whimpers.

"Fuck... Saihara..."

Rantaro's voice is deep and lust filled, groaning out Shuichi's name under his breath. They had a little to drink today after Kokichi roped them into board games, so maybe that finally dislodged the stick up their asses.

"Ah... Amami-kun, hng..."

Kokichi's eyes widen and he takes a step back from the door. They're finally, finally fucking, and really, that should satisfy him.

If it wasn't for his own desires and a pang of jealousy. He should really leave them to it. 

His body has other plans however, in the form of his dick bulging inside his shorts. It's a little embarrassing just how fast the noise turns him on, and truthfully, he hadn't thought this far, what would happen if he caught them. Hell, he never thought they'd get to this stage to begin with. 

Kokichi bites his lip and hears Rantaro moan again, and he knows there's no escape. They'll never know he was here, and for all his work, he deserves some compensation.

So Kokichi sits down inside the doorframe, frees his dick from his pants and wraps his hand around it, his ear leaned against the door to listen to Rantaro's and Shuichi's moaning. Just a few strokes in and Kokichi's hips are greedily rutting against his own hand, and he desperately tries to muffle his own noises. He hears Shuichi cry out, and then he starts feeling dizzy from subconsciously picking up the pace.

In his fogged up state, he doesn't realize he's been moaning loudly, and also misses the way the door has opened until he tries to lean against the wood and feels no more resistance. He blinks, precum sticking to his hand and his erect cock throbbing inside his palm, looking up to meet emerald eyes.

Rantaro leans against the doorframe, his arms crossed. "Can I help you, Ouma?"

Kokichi thinks his life ends right there. Rantaro is completely naked, the evidence of recent sex sticking to his body. And fuck, he's hot. Kokichi has seen him shirtless, but not completely naked, and Rantaro doesn't seem very shy about it.

"Uh, Amami-chan... It's not what it looks like... I was just, uh..."

"Did you feel left out?"

Kokichi swallows. The pressure of his erection starts to hurt and he bites his lip, nodding. There's no use lying now. He wants sex and wants it so desperately, he feels utterly pathetic.

"Alright."

He doesn't sound mad, just amused. Kokichi wouldn't have thought he'd be angry catching him, he's not the kind, but he doesn't seem bothered by it at all. It's almost like he's been wanting Kokichi to hear. 

Rantaro steps over and curtly picks Kokichi up. Before Kokichi knows what's happening, he is being set down into a used bed, with a wide eyed, equally naked Shuichi in front of him.

"Ouma-kun?!", Shuichi squeaks, quickly closing his legs.

"Someone's been excited to listen in on us", Rantaro says as casually as talking about the weather. Well, at least they don't seem opposed to him joining...

Kokichi's face burns in shame regardless, and he knows his dick is in full view, now that his shorts fell down to his ankles.

"Fuck... You two have more looks than brain. I've been trying to get either of you to have sex with me and you didn't pick up, and then you wouldn't even fuck each other!" He chews on his thumb. "And now you're fucking and I-"

"It's alright, Ouma. We would have asked you to join, anyway", Rantaro says gently. 

Shuichi averts his gaze and giggles. God, since when did sex remove all his anxiousness and give him some backbone? Kokichi groans. He hates being exposed like this, but he's so riled up that he can't be bothered to quip back.

"Let's help you out with that, yeah?"

Rantaro pushes Kokichi's shirt up, and Shuichi pulls it over his head. Shuichi's fingers trace along Kokichi's skin and make him shiver. They briefly lock eyes and Kokichi quickly has to look away.

"I'll be right with you in a moment. Just let me prep", Rantaro continues.

Shuichi's eyes are hanging heavily on him, a kind of lust-clouded look that looks foreign, but extremely sexy on him. Kokichi leans forward into the mattress, feeling a little weird presenting his ass like that.

"Don't startle."

Something wet touches Kokichi's hole and he groans. Rantaro's free hand is kneading his ass, and it's enough to make his dick perk up in new excitement. Rantaro pushes a lubricated finger inside, but Kokichi is so incredibly aroused, there's barely any resistance.

Rantaro experimentally thrusts his finger into him and Kokichi moans deeply, drool running from his lips. His eyes are watering and he bites the inside of his cheek. The thought alone of Rantaro currently fingering him is insane, but the promise of being fucked almost makes him dizzy. 

"I think you're good."

Rantaro pulls out and shuffles around on the mattress. Kokichi can hear a squelching sound, a couple quiet moans and the rustle of tissues. Hands grab his shoulders and guide him to sit up, and Rantaro pulls him against his chest, wrapping his arms around him from behind, setting his hands firmly on his hip bones.

Kokichi thinks he must be dreaming. He fantasized about having sex with one of those two, but he didn't think it would be both. Or that it would happen at all.

Shuichi gets down on his elbows, and as Rantaro pushes his dick into Kokichi's entrance, Shuichi takes his cock into his mouth. He's able to take him, in the truest sense, balls deep and swallows him into the slick warmth of his mouth. 

A deep moan escapes Kokichi's lips, his head rolling back and his hips jerking into the depths of Shuichi's lips. His fingers claw at Shuichi's wild hair, fingers tangle into dark navy strands, finding purchase to keep himself upright. 

Rantaro thrusts against him, the movement pushing his dick deeper into Shuichi, making him gasp. His tongue slithers around Kokichi's erection and he starts to worry he might pass out from the sudden overwhelming pleasure.

He's been messing around with that toy hidden under his bed, but getting himself off never felt as good as this. The heat of bodies against his own, the feeling of Rantaro's throbbing dick exploring his walls, the warmth of Shuichi's mouth and his curious tongue sliding around him, his yellow eyes rolling back in arousal.

Kokichi whimpers and sniffles quietly, trying to keep himself composed. Both of these guys are so attractive, and Kokichi always quietly worried he's just not enough to be desired by them. Now they're both moaning because of him. 

"Now that you've been eavesdropping on us, I think we should hear you too", Rantaro coos, his breath parting over Kokichi's ear.

Shuichi is panting quietly, greedily sucking on him and his hand wanders down between his own legs, hips jerking against it. Rantaro chuckles softly and rests his face against the back of Kokichi's head, finding an even rhythm.

Kokichi wonders how much energy that guy has after just fucking Shuichi moments prior.

"I, ah... Totally never meant to listen in..."

His lie falls flat, because his mind feels way too empty to think. Sex pleasantly quietens his usually racing thoughts, which is its own kind of pleasure. 

Rantaro hums and releases one hand from his hip in favor of wrapping his arm around his torso, presses his hand against his chest and spreads his fingers, tilting him slightly forward. He sinks deeper into him in result, and Kokichi softly cries out.

"Hah... I'm not gonna last much longer", Rantaro gasps, "Should've joined us from the start. Now I've gotten Saihara all unraveled for you already and you didn't have to put in any work."

Shuichi coughs. It makes Kokichi giggle and he plays with Shuichi's hair between his fingers, parting his jaws to breathe through his mouth.

"Ngh... Is oke... I'm c-close... Fuck, since when is he so good at sucking cock?"

Shuichi grazes his teeth over Kokichi's shaft in protest and he whimpers, his entire body shivering. It's a strange feeling, and he already knows that's unlocking something in the depths of his mind.

"Alright. Buckle up, then."

Rantaro picks up the pace, groaning with each thrust and Kokichi closes his eyes. His hair is bouncing under the motion, Shuichi's tongue wrapping around him and he sucks on him, hard. Rantaro releases a deep, choked moan and his hips stutter, shifting back to rapidly hit Kokichi's sweet spot in shallow, quick thrusts.

"Ah... Fuck... I'm gonna...!", Kokichi whimpers under his breath, drool running form the edges of his mouth. 

Rantaro sinks his teeth into Kokichi's shoulder, and the sudden touch breaches past all his limits.

Kokichi feels Rantaro push deep into him again, the warmth of his body damp with sweat, using Kokichi's hole to pleasure himself to orgasm too.

On the other side, Kokichi feels Shuichi greedily swallow his release, bobbing his head all the way through until he turns soft. It's only then he pulls away, but when he sits up, there's a couple drops of cum on his face, and Kokichi thinks he's never been more sure he's head over heels in love with his roommates.

Rantaro pulls out and Kokichi sags into the mattress, feels something warm drip over his ankle. Well, the bed looks fairly used overall.

"There's cum on your face by the way", Kokichi notes and Shuichi's eyes immediately widen, his face turning red.

"Don't be mean", Rantaro scolds.

The tune of his voice makes Kokichi's heart skip a beat, because it's soothing and soft like warm honey, completely disarming him.

Rantaro shuffles next to Kokichi, rests a hand against the side of Shuichi's face, fingers parting around his ear. Shuichi whines quietly and closes his eyes.

So it works on him too, Kokichi supposes.

Rantaro leans in and draws Shuichi into a deep kiss, tickling out another exhausted moan from his throat. It sounds wet, only lasts a moment before Rantaro breaks it and curtly licks the remnants of his cum off Shuichi's skin.

"Did you want to taste me that badly?", Kokichi asks.

Shuichi looks downright lovesick when Rantaro lets go of him, and he immediately understands why. Half lidded, deep emerald eyes and a seductive smile on his lips, Rantaro doesn't hesitate to kiss Kokichi right after.

And Kokichi knows he's awfully inexperienced, his mouth open to wide and Rantaro mouthing at him, but he doesn't seem to mind. He wheezes and Rantaro releases him, looking content with himself.

"So, I guess that's settled", he says casually, "I mean... We've been dancing around the bush for a while... I guess."

"Did... everyone feel the same?", Shuichi asks quietly, trying to cover his crotch with the crumpled blanket.

"So there's at least some coherent thought up there", Kokichi quips.

"Yeah? Why didn't you make a move then, Ouma?", Rantaro counters.

Busted. He's not going to admit his insecurity.

"Anyway", Rantaro picks right back up, "I don't think my bed can be used for tonight. Do you guys wanna head back to your rooms or..."

"I have the biggest bed", Kokichi says immediately without thinking.

He's usually dodgy about letting people into his room, but... They all look tired. And he really... wants them there, he thinks.

"Alright." Rantaro closes his eyes with a smile. "Maybe freshen up so we don't ruin the sheets. I'll fix this in the morning. Sex in the kitchen at eight?"

"A-Amami-kun!", Shuichi splutters and buries his face in his hands. Same old, same shy timid Shuichi. Well, his pathetic charm sure works. 

"I'm in", Kokichi grins.

Rantaro returns it. "In who?"

And he disarms him yet again, getting Kokichi to blush.

 

There's a lot to explore and a lot to progress from this stage... Kokichi finds himself anxiously awaiting where their newly found bond will go.

Deep inside his ass, probably.