Work Text:
Shouto stood outside of Katsuki’s dorm room with his fist raised to knock on the door, notebook and pencil in hand. Izuku had promised him earlier that they would work together on one of Mic-Sensei’s recent, more difficult assignments, although they hadn’t yet decided a time. Therefore, Shouto took it upon himself to seek out the other boy after dinner that evening, once regular study activities had begun in the common room downstairs.
However, when he tried going to Izuku’s room to ask if they could work now, the other boy hadn’t answered, nor was he in his room at all, once Shouto had invited himself in. So, the two-toned boy figured the next most likely place for him to be would be Katsuki’s room, where the two (and recently, three) boys would often congregate in their free time; sometimes for homework, sometimes to watch or play video games. Any time they could get to spend in each other's company was taken advantage of, especially after the war.
And so, just as Shouto was about to rap his knuckles on the explosive hero’s door in front of him, he heard it.
“Fuck— Kacch— nnh! Shit! Slow down, —mmh!— I already came, you asshole!” Izuku’s breathless and slightly whiny voice came faintly from behind the thin door, as Shouto smiled slightly in success. Found him.
“Gettin’ greedy there, Deku? Hah— fuck, you’re deep—“ followed another familiar voice, this one rougher yet teasing in its remarks. “I haven’t even come once, don’t you think it’s fair you get it back up for me? I think so— shit, Izu— especially since you’ve made me wait all day for this fat cock.” Katsuki snarked, just before Shouto decided to make himself known.
As the two toned hero pushed the door open and slid inside, Izuku squeaked a very high-pitched yelp out at his arrival, scarred hands flying from where they had clearly been on the headboard above him down to where Katsuki’s hips were rotating sensually over Izuku’s own pelvis. The blonde looked notably less spooked as he took in Shouto’s arrival.
“It’s just me,” Shouto smiled quietly, his eyes squinting as he bowed his head slightly at his two friends. He made his way over to Katsuki’s desk like he had dozens of times before, waiting for one of the other boys to say something.
“Just me, he says,” a scoff, from Katsuki, “you’re such a fuckin’ freak, Icyhot.” He finished, not unkindly, eyes sparking in something like amusement and relief.
It certainly wasn’t the first time Shouto had walked in on a scene like this between his two good friends. It didn’t bother him, of course, and although they had seemed hesitant at first (perhaps wondering if Sho expected to join in? Though he thinks it was rather clear he quite preferred to simply watch or even do his own thing in the same room, rather than involve himself) they quickly got used to his presence during their more intimate moments.
“Uh— hey, Sho! What’s— stop for a second, Kacchan, you’re insatiable!” Izuku hissed out at his partner above him, hands clamping down over the other’s hips to still him as he tried to continue rocking on the green-haired boy’s dick. “—What’s up? All okay?” He finished, turning his attention back to Shouto and glancing at the work he had brought over. “Did you need something?”
Shouto tucked his legs under himself where he sat on the desk chair, getting comfortable and pulling out the particular worksheet. “Nothing urgent, don’t worry. I didn’t mean to stop your activities. I had just wanted to see when you’d be able to work on the assignment from earlier?” He responded, taking in his friend’s disheveled appearances.
It was clear they had been at this for a while. Izuku was entirely nude, while Katsuki still had a shirt on. A shirt that, cleverly (or perhaps not, if you asked Katsuki) stated ‘Workout Clothes’ on the front of it. One of Izuku’s, then. Shouto could see where Katsuki’s own erection was tenting and creating a small damp patch in the hem of the shirt he wore, while his hands were propped up on Izuku’s pecs ahead of him. Izuku himself was littered with fresh bite marks, and his lips looked swollen and bruised from whatever Katsuki had been doing before Shouto arrived.
Shouto who, just watching, had his heart warmed like always from the sight of his two dearest friends being so close and affectionate with each other as well. “But that can wait, of course. I’ll work on something else while you two finish up— but I’m in no rush, so don’t hurry.” He said warmly as he turned back to his papers.
It took a moment for the other two to start moving again, though Shouto noted that Katsuki’s cock twitched slightly. He hadn’t seen Izuku tighten his grip or do anything that would usually elicit that reaction, but Shouto was glad his sudden appearance hadn’t, ah, how did people put it? Killed the mood?
After a short while of trying to work on some other assignments he had brought with him, Shouto turned back to the sweaty pair on the bed. “I suppose it is the end of the week. Perhaps I’ll shelve this work for another time, if that’s an alright change of plans with you, Izuku?” He spoke softly to his green haired friend during a lull in their activities.
Izuku, having just escaped yet another brutal make out session with Katsuki, nodded somewhat distractedly before blinking some clarity back into his gaze and turning to face where Shouto still sat, curled up at his desk.
“Sure thing Shouto-kun! We’ll have time before the due date, anyways, since it’s not until Tuesday. Uh—“ his voice cut out as Katsuki had re-attached himself to the shorter boy's neck. In that moment, Shouto could have sworn he saw a, dare he say devious glint in the blonde’s red-hot gaze.
He watched as Katsuki’s hands trailed up to Izuku’s chest, dragging blunt nails and leaving a faint red line in their wake. His thumbs flicked over Midoriya’s long-abused nipples, causing a choked groan from the man below him.
The display did something weird to Shouto, though. Not entirely unfamiliar, however stronger than any other time he had reacted this way. Maybe it was the fact that it was a Friday night, and the two-toned teen was feeling especially relaxed before the upcoming weekend. He had no obligations over the next couple days, no orders from his father to come home, no major exams or projects to worry about.
Or maybe the pleasantly warm buzzing below Shouto’s navel was a long time coming. After all, it was no secret that he enjoyed being allowed to see his friends in this sort of context.
He felt some of that same heat rise up his neck, more insistent than ever before. His eyes zeroed in on where Bakugou’s pink tongue came out to lap at a line of sweat tracing its way from Izuku’s hairline. Something pulsed below his belt. Shouto unfurled his legs from the desk seat and chose to cross them instead, an unconscious effort to alleviate whatever foreign feeling was taking over his nether regions.
The shifting movement drew Izuku’s attention, for some reason, distracting him from where he had been dazedly, jerkily watching Katsuki suck a line down his chest and over his dusty nipple.
“Sho? You alright?” came his soft, genuine and mild concern. Shouto supposed that his face wasn’t quite as blank as he knew it usually to be, if Midoriya was noticing.
“I’m—“ Katsuki came up for air just to blow cool air over the nipple he’d detached from, causing Izuku to arch up slightly with a whine. “—I’m alright, just… warm.” Finished Shouto, feeling restless in his own skin, unsure of how to rationalize his bodily reactions.
He’s sure he could feel something warm and wet in his boxers, at this point. But he wasn’t sure how to go about articulating that, or even if he should.
Although in the past he had no particular interest in sex nor masturbation, he had in fact explored his own anatomy in an attempt to— well, he supposed, see what the fuss was?
After being made to listen in on one-too-many boy’s locker room talks, Shouto had taken his own fingers to his opening, lips strangely warm and soft where he dared to press against the heat.
Growing up in such a strict environment, he’d hardly had the space, time, or drive to learn much about his body, so that curiosity-inducing but lewd conversation after gym class had definitely sparked some interest in Shouto.
Interest that, of course, led nowhere fruitful. He’d never been able to reach orgasm or even find more than a lick of pleasure out of touching himself. He wasn’t sure if his technique was off, or his body itself was broken.
But he wasn’t particularly cut up about it, at the end of the day. He found his stress relief and satisfaction (some of the main goals of masturbation, as Kirishima succinctly put it) down other avenues. Taking walks with Ochako, drinking tea with Momo, morning runs with Iida.
Watching his two best friends get each other off.
A sharp laugh jolted Shouto out of his pondering, where he noticed Katsuki had since rocked back from where he had been attempting to smother Izuku, cock half hard and still dripping with his spend from their last round.
“I think Half-n-Half’s enjoyin’ the show, huh ‘zuku,” the blonde leered at the subject of his scrutiny, leaning back even further before raking his gaze down Shouto’s increasingly warm form, not even the irregularly cool body temperature of his right side keeping him in check.
The explosive boy’s eyes stopped and parked themselves around Shouto’s groin, where his legs were crossed and minutely rubbing together as the dual-quirk user shifted uncomfortably.
It’s not that he was ashamed to be found out, it was more that he didn’t know how to proceed. Nor did he know what Bakugou intended to do with him, looking upon his flustered self with the sort of rapt attention usually reserved for a predator that finally caught up to its dinner.
In a belated effort to shield his poor, inexperienced cunt from further embarrassment, Shouto’s knee came up once more to try and cover his crotch from Bakugou’s piercing eyes.
An effort which, to Shouto’s mortification, resulted in a very wet, very obvious squelch as his cunt lips slid against each other and the nearly soaked fabric of his boxers.
When did that happen?!
Completely undeterred, Izuku let out a broken moan at the noise, spent cock twitching where it sagged against his thigh, flush with the crux of Katsuki’s groin. “Shouto— fuck, Sho, it’s okay— are you— do you like this?” The freckled boy breathed out, hands clutching at the figure in his own lap as he pushed himself up to a more present, sitting position.
Katsuki rolled his eyes, snorting at the question. “More than like, I’d say. You ever fuck yourself before, Candy-Cane?”
Shouto, face ablaze at the rapidly developing scene around him, nodded stiltedly. “I- I tried. But. It didn’t— nothing happened. Sorry. I don’t know why I’m—“
“Oh my god Sho don’t be sorry— no, baby, you’re beautiful, we’re so lucky to—“ Izuku rushed to correct him, his words sending yet another pang of something to Shouto’s nether regions.
For the first time in all his 18 years, Shouto ached to touch. What, though, he wasn’t clear on yet. He wanted to rub his needy core against something, any way to take the pressure off his most sensitive parts. He wanted to reach out and caress Izuku’s collarbone in a way he’d never imagined doing before. He wanted to taste Katsuki’s effort where it dripped between his generous pecs.
His legs came down to the floor once again, his hips rolling faintly and uselessly against the air where he imagined relief. “You are too. Uh. Both of you. I’m so happy you let me—“
“Tch. Save the sappy shit for later, Sho. Yeah, yeah. We dig you too. For now—“ Bakugou lifted himself off of Midoriya’s form, still only clad in that same silly shirt, before making his way over to Shouto’s perch.
“For now, IcyHot,—“ the blonde sank to his knees between Shouto’s now-parted legs. His sharp chin jerked towards his prize, eyes nearly bleeding with desire. “How about you show me exactly how we’ve been makin’ you feel, hmh?”
Shouto’s world narrowed to where it only consisted of Katsuki’s attention on his cunt, the short distance between where his head tilted up to look at the ice user and where Shouto was getting near-desperate for some bit of relief. Faintly, he could hear Izuku panting, dimly registering the other moving around and adjusting his own position so that he could watch the performance across the room.
Shouto licked his lips. He thought he knew, logically, what Katsuki was asking. That didn’t mean he wasn’t hesitant, though. He’d never participated in these sorts of activities with his best friends, let alone anyone else. His trembling hands moved up his own thighs in a self-soothing motion, before stopping and fiddling with his waistline.
Words failed him like they so rarely did before, his affirmation coming out in an aborted, breathy hum as he shakily nodded, thumbs finally dipping under the band of his lounge pants. He didn’t breach the final layer of his boxers, yet, focusing on just one thing at a time.
Shouto didn’t think his brain had ever been so frazzled.
“That’s it, Shouto,” Bakugou purred from his place at eye level with Shouto’s actions. “Good boy, IcyHot,” The other boy’s own scarred hand had drifted down to where his cock was nearly at full mast once more, thumb swiping over the slit as he lazily stroked himself.
Shouto could’ve sworn Katsuki was half a second away from actually drooling, with the way his tongue kept coming out to swipe across his bottom lip, resembling a hungry wolf.
As Shouto shifted himself to successfully push his pants down to his ankles, he suddenly felt hyper aware of every little sensation taking place on his body. The slightly cool draft of the room kissing at his scalding cunt, shielded only by the thin fabric of his boxers. The ways his knees twitched in their desire to open, spread further for the gorgeous boy between his legs.
The place where Bakugou’s breath, coming faster and more harshly by the minute, tickled the soft hair on his thighs.
Suddenly, it all hit Shouto at once. He was feeling overwhelmed in the best possible way, his pants coming faster by the second and feeling like his brain was melting out of his ears. He let out a pitiful, so obviously needy sound.
Bakugou’s eyes lit up at the whine, his hands jumping to cradle the Shouto’s calves in excitement. “Oh? Puppy’s desperate for something, it sounds like. Can he use his words, though?” he queried something close to condescendingly at the boy above him.
The two-toned boy, beyond full words, at this point, shifted his hips forward and back, not daring to touch where he needed it most but still seeking out imaginary friction. “Haahh— Ple— hnnh, Katsuki,—“ He barely managed to squeak out.
“Is that so? Aching for me so bad you don’t even know what you want. Maybe Deku can help?” The brash blonde tilted his head slightly toward their audience while still keeping his eyes on Shouto. “What could our sweet little puppy need most, Izu?”
Izuku still had his cock in his hand, scarred fingers gripping uncomfortably at the base in an effort to save his orgasm. “Uh— mouth, Kacchan? Sho? Is that— something you’d want? He’s good with his tongue, you know. He’ll make you feel so good, Shouto-kun, I promise,” sharp viridian eyes scanned over the scene in front of him, raking in every detail faster than lightning over and over again, adding what felt like another hundred degrees to the whole situation in Shouto’s pants.
He nodded frantically in agreement, feeling like Katsuki had activated his quirk where his hands caressed Shouto’s legs, the touch making him shift around even more.
“Ah ah, words baby. You can do better than that.” Katsuki’s devilish smirk came out in full force then, “It’s just me, after all. I’ve got you.” A teasing callback to Shouto’s earlier greeting hardly a half hour before.
More than that though, even through his lust ridden brain, Shouto could recognize the reassurance for what it was. And he was grateful.
For all that the pair was giving him now, he knew he could give them the verbal consent they were seeking. “Yes, yes, please Kats, hnngh— please,”
Then Katsuki laid a gentle kiss on Shouto’s knee, right to the left of where his head hovered between the spread legs of the two-toned boy. “Good,” he murmured, effectively sharpening Shouto’s worldview down to that word as the blond reached for the other's waistband.
Any nerves Shouto might’ve still had evaporated at the confident although tender way that Bakugou swiped his thumbs across bare thighs, before he gripped his boxers and dug hot fingers against Shouto’s hips.
In one fell swoop, Shouto had instinctively lifted himself just enough for Katsuki to pull his underwear down, dragging them further to crumple around one of his socked feet. From there, Katsuki attached his sinful mouth to Shouto’s inner thigh, eyes insistent where they honed in on the dual quirk-wielder’s most intimate part.
Without an ounce of shame, Katsuki moaned at the sight, breathless and so loud that Shouto might’ve been worried about neighbors overhearing (if he was in any state of mind to do so).
Chasing the shine of Shouto’s slick up his thighs to where coarse peppermint hair glistened with arousal, Katsuki licked and gently sucked his way across Shouto’s sensitive inner thigh.
He let his teeth scrape by, rubbing his cheek where he could as if he were a cat attempting to spread his scent across his property. “Tastes good, Sho,” he spoke into the soft skin, red eyes flicking up for just a second to meet grey-and-blue irises.
Unthinkingly, Shouto went to cover his mouth and stifle the pathetic whine he was sure he’d let out, but he didn’t get the chance before Katsuki snagged his wrist, both of his wrists, faster than anything so he could instead bring them to his own blond spikes.
“Just here, IcyHot—“ That nasty smirk made a reappearance. “Hold on for me?”
Shouto couldn’t stifle the choke that left him, “Confident,” he remarked, his voice hoarse from dehydration he hadn’t noticed before.
Perhaps Shouto shouldn’t have poked the bear, in hindsight, because then Katsuki took his still-usable voice as a personal challenge. He winked, and Shouto’s sure he would have snorted at the cliche move had he had any time to breathe before Bakugou dove for his cunt, blowing cooler air across where Shouto’s interested clit started to poke out of it’s hood and increasingly inflamed lips, following up Shouto’s jolted reaction with a long, broad lick from behind his entrance to the peak of his mound.
“Ffuhh—“ Shouto’s grip tightened, yanking the other boy in two different directions as he warred with his body over the first direct stimulation on his pussy. Sho clenched his teeth, sinking lower in the chair still against his own volition.
“How’s that, puppy? How’s it feel?”
Shouto’s face felt like it was on fire, and he bit his lip as he released another whimper— long past the point of embarrassment. He loosened his grasp on Katsuki’s hair before he accidentally yanked it out of his head, hardly remembering the other man’s question. “S’good, Kats. More, please?” Shouto managed, shyly encouraging Bakugou’s mouth back towards his pussy.
“Holy shit, good boy Sho,” came Midoriya’s even more wrecked voice from behind Katsuki, the graphic schlick of his hand over his own cock becoming faster by the second.
“How about you show me how to make you feel good, baby? Use my tongue, my face to get what you need—” Katsuki’s voice caught at the beginning, and his arm’s movement below where Shouto could see were clearly picking up, betraying how the situation was affecting him.
Sho really didn’t need any more direction than that to take what he needed.
He rocked against that sharp, loud mouth, shoving his cunt against Katsuki’s chin and dragging the boy’s face in the same direction as a nod, rubbing all over his mouth and even across the peak of his strong nose. He wasn’t sure exactly what noises were coming out of his mouth, attention zeroed in on the glorious pressure between his legs, but it must’ve been loud because he could only barely make out Katsuki’s own groans and hums as he let Shouto use him.
Shouto, who noted that Katsuki was especially loud whenever he got rougher in his movement, eyes darted to Izuku in a silent question.
Izuku smiled at him, nodding in understanding. “He loves that, Sho. Loves being tugged around a bit, I think the pain gets him off better than almost anything else,” he said, gaze dragging back to where Katsuki might well have been drowning (happily) in Shouto’s fluids.
Using this encouragement, Shouto tugged harder and even wrapped his heels around Katsuki’s back, moving his own body at the same time as the other’s head. At his insistent movements, Bakugou grew louder and louder where he was buried in cunt, his tongue coming out to lap at Shouto’s insides as much as he could. His hands came up to clutch at strong thighs, forcing the boy above him closer on the chair to his mouth before closing his lips over Sho’s engorged clit, shaking his head and ultimately sucking, hard, over the sensitive nub.
One of his hands even came over to help, Shouto wet and stretched enough for two of Katsuki’s thick fingers to enter him below where he was trying to suck his best friend’s life out of his body, thrusting at a fast pace and seemingly picking up even as Shouto’s grip came loose from his hair.
“Ahh— Kats— close, close, please— I’m—” He jerked his hips hard, twice, against where Katsuki was unrelenting in pulling an orgasm —his first— from Shouto, before it felt like a dam was breaking and the pressure was cascading away from his cunt finally. His vision whited out, pelvis twitching and brain leaving through his ears while the blonde below him worked on pulling him through the last of it, below gathering enough of Shouto’s slick in his hand to bring to his own cock where he very quickly finished himself off, it being clear just how close he was.
“Fuck, Shouto— you’re so fuckin’— shit—” Came Katsuki’s gruff voice, before he spilled into his own hand and across his thighs, still where he sat in front of Shouto’s now-puffy, oversensitive folds.
Shouto blinked after a few moments, finally coming back to himself to notice something. Katsuki’s face was fully soaked where it remained, satisfied and satiated in front of him.
Did I… Was that—?
“You’re so fucking gorgeous, Sho, my god.” Katsuki saw the question in his eyes and was quick to reassure, of course. “You squirted all over my damn face and it was the hottest shit ever, trust me baby,” said the other boy, licking his lips in yet another lewd display.
Shouto’s attention then fell on Izuku, who still had his own eyes on the pair from where he sat on the bed. In all that had happened, he had also come all over himself, though appeared to have taken care of it if the new soiled tissues nearby were anything to go by. He then spoke, seeing Shouto’s look. “How was that, Shouto-kun? Okay? Kacchan, you good?”
“Better than good, ‘Zuku, that was the best fuckin’ pussy I’ve ever tasted,” replied Bakugou with another hungry and intimidating look in his eye. He must’ve noticed Shouto’s eyes widening because he laughed out loud and shook his head at the daunted look Shouto was sure he was giving. “Ha! Don’t worry, IcyHot, we won’t go again. For now.” He laid a wet kiss on one of the knees still within his reach, before scooting back and standing up to stretch. “Really though, any notes, Sho? You’re awfully quiet after that damn mind-blowin’ blowjob. What, not up to standard?” Shouto thought he could detect a small bit of worry in the rough voice of the blonde, so he rushed to get some reassurance out.
He opened his mouth, prepared, but his words weren’t cooperating so instead he choked on his tongue. Going with plan B, he reached out to hold Katsuki’s hand between both of his, relying on the other boy’s people-reading skills and how intrinsically they knew each other to get his message across.
At this, Katsuki’s face softened, relief flooding his expression as he bent down to press his lips against the corner of Shouto’s left eye, his other hand brushing the man’s hair back softly to give him a matching kiss on the other side. “Good, baby. I’m glad.”
It was then that Katsuki pulled him up and out of his chair, still pantless, over to the bed where Izuku sat watching the exchange. “Let’s just sit for a while, hmm? We can talk in a bit, when you’re ready. No rush, Half-n-Half,” He adjusted them on the bed so that Shouto was between him and Izuku, who guided his multi-colored head to lay against his collarbone.
It was then that Shouto nodded, at peace sandwiched between his two of favorite people in the world, either hand in each of theirs, that the three of them drifted off, one by one.