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When asked what Kirishima expected from the boys of 1-A's makeshift dormitory, he probably would have answered something along the lines of "a mess." However, when he stumbled into the room a good twenty minutes after even the other remedial boys had passed out - he had to wash the gel out of his hair first - he didn't think he would have ever really guessed what he found. It was fourteen teenage boys, so he was expecting disarray. However, this? This wasn't disarray. He didn't have a word for it, but it certainly wasn't disarray.
Each boy had their own futon, yet, somehow, there was maybe only six boys actually sleeping on futons. Most of the boys were sleeping in a scattered mess, half off the mattresses, in piles of stolen blankets or pillows, or just straight up on the floor. The dim moonlight that fell into the room from the doorway was enough for Kirishima to see in the distance that Mineta was none of those - he was wrapped up in what looked like a sleeping bag. Not an unfurled sleeping bag mind you, it just looked like he had curled up in the middle of a rolled up sleeping bag. It was a mess, and Kirishima, whose exhaustion was so deep he could feel it in his bones, considered whether it was really worth it venturing inside. He considered for a moment just trying to sneak into the girls' room, but trying to explain to everyone that he was gay and, therefore, not a threat to the sleeping girls was both intimdating and also not worth the effort. So, he sighed and stepped quietly into the room to try and find a fairly empty spot to sleep.
He was about halfway into the room, carefully making his way through the haphazard obstacle course, when he found himself stopping by Katsuki. Katsuki was one of of the few people actually sleeping on his mattress, adding to the ranks of Midoirya, Todoroki, and Iida. He actually had to stifle a laugh when he found Iida sleeping, because he took it just as seriously as everything else. He was sleeping directly in the middle of the mattress, ramrod straight on his back, and his face was set with determination instead of lax and sleepy. Anyway, Katsuki.
Katsuki was mostly on his mattress. He was laying on his back, about halfway down the actual mattress, with his left leg kicked out onto the floor. Sero's arm had made it's way to his mattress, and in the morning there was no way he wasn't going to tease Sero for sleeping 'with' Katsuki. The blond, however, probably didn't even notice. His shirt had pulled up, and his toned stomach was full display. His mouth was open, his face slack and peaceful, his blond bangs hid his eyes, and his chest rose and fell gently with each breath. Kirishima forgets sometimes that he's young, that they're all young, but seeing Katsuki like this, sleeping, reminds him that he was the oldest one here, and yet he was only barely sixteen.
Then, the more animal parts of Kirishima took over, and he found his eyes trained to those abs. His palms itched, wanting to touch, and he had the sudden and overwhelming urge to kiss Katsuki. Even in his sleep, messy and ungraceful, he was beautiful, he was hot, and Kirishima knew he should go to bed. It was only five hours until they had to wake up. But the last few weeks they actually had been studying instead of fooling around, and in these last two days of camp, Katsuki was always just an arms reach away, gorgeous and casual, but they could never get privacy or close enough to each other to do anything. Kirishima had gotten used to a routine, and now that he didn't have it, it was driving him crazy.
He was a weak, weak man. What did you want from him?
Besides, he could just ask, right? What's the worse that could happen? His eyes trailed to Katsuki's hands, and oh, right, he could be exploded and then they'd have to explain to all of their classmates, the teachers, and The Pussycats why Kirishima had woken up Katsuki. He didn't think they'd be very generous after he explained that he was just horny. He bit his lip, and tried to consider the best way to do this. If he woke him up too quickly, he'd more likely to panic, right? So Kirishima needed to bring him out of sleep slowly. Real gentle like. Right, he could do this.
Being nervous of your not-boyfriend when your not-boyfriend was Katsuki Bakugou wasn't unmanly. It was just common sense.
He sat down behind Katsuki's head, and gently lifted it into his lap. He ran his fingers through those deceptively soft blond locks, humming softly to him while he went. It was a slow process. Katsuki squeezed his eyes shut, but didn't open them, and then he closed his mouth. His forehead wrinkled, and eventually he seemed to understand someone was under him. His hand weakly reached up before falling back on the futon, and Kirishima had to smile. Katsuki was adorable, and his sleepy actions warmed Kirishima's heart. Eventually, two red eyes blearily blinked up at him.
" . . mhm . . ." He mumbled, stifling a yawn, and then suddenly he tensed. Kirishima glanced around, but then realized that Katuski had never seen him with his hair down. In his sleepy state and the dark, he probably didn't recognize Kirishima. Kirishima pressed a finger to his lips, and then grinned toothily at Katsuki. Almost immediately the blond seemed to relax, recognizing the teeth. Kirishima went back to running his fingers through his hair, pleased when Katsuki pressed into his hands.
". . . Kiri. . ? Your hair . . ." He started, reaching up towards the long red hair covering Kirishima's head. Katsuki's voice was low, tired and confused. Kirishima hummed in response when he felt clumsy fingers tug lightly on his bangs.
"I had to wash the gel out," he explained, and Katsuki seemed to accept the answer. His hand dropped, and he turned to his side so he could bury his head in Kirishima's thigh.
". . . 's cute is all . . . " He mumbled, and Kirishima blushed. He didn't exactly dislike his hair down, but he felt more confident with it up.
"Hey, Bakugou?" He called, and waited for the boy to open one of his eyes. When he did, Kirishima tried to do that sly smirk that Katsuki always wore when he was being flirty, but he was pretty sure he just looked like he had a stroke. None the less, the boy looked a little more awake. "Wanna go on a walk with me?"
". . . the fuck would I want to do that?" He slurred, his voice too sleepy and cute to actually have any heat to it. Kirishima broke into a more genuine grin.
"C'mon, we haven't spent any time together in a while," He huffed, bending his head as close to Katsuki's as he could. The blond blinked and turned his head so more of it was facing Kirishima. "I missed you."
". . . 's gonna be a fun walk?" He asked after a moment, and Kirishima dimmed his grin to a soft smile.
"I'm sure we could find a way to make it fun."
-~-~-~-
Katsuki sent Kirishima outside while he went to grab something from the stuff he had brought. It actually was a beautiful night, and under different circumstances, he probably would like to actually just take a walk. He had always liked taking walks in the woods, and when he caught glimpses between fighting the stone statues and being starved into exhaustion, these woods in particular had been beautiful. But, he thought, as Katsuki stumbled out of the dorm, sleepily rubbing his eyes, there was something more beautiful than anything those woods contained.
Kirishima almost laughed at how sappy he was when he was tired.
“Ready to go, shit-for-brains? Let’s get it over with,” Katsuki yawned, and then walked past Kirishima. Kirishima did laugh then, hurrying to match Katsuki's speed. The night wasn't exactly cold, since it was the middle of summer, but there was a gentle breeze and Kirishima's thin pajamas suddenly felt too thin.
"Man, Katsuki, are you trying to make me hard?" He asked, and Katsuki side-eyed him. His intensity had already returned, and Kirishima felt small under his heated gaze. When he arched an eyebrow, the cool night no longer bothered him.
"I have to fucking try now?" He asked, his expression skeptical. Kirishima blushed, because no, he really didn't. They were close enough as they walked past the treeline that their fingers occasionally brushed against each other, and each time that happened Kirishima felt it like lightning up his arms. He forced a pout, however, because Katsuki really didn't need to know how much control he had over Kirishima. Or, rather, Kirishima didn't need to admit to it.
"It'd be nice if you did, once in a while. You're always jumping right in," he whined, and Katsuki sneered at him.
"What do you fucking want? Foreplay? Dude, that's gay as shit."
"Like, bro, I understand that we are both gay so you don't mean it as an insult to me, but also, we're both gay, so it doesn't really anything when you say that and I'd like you to stop."
Suddenly, Katsuki stopped. When Kirishima turned towards him, the blond rammed him against a tree. The immediate burst of pain was quickly ignored in favor of the heated kiss that Katsuki pulled him into. They usually started slow, gentle, as if Katsuki always wanted to make sure Kirishima had a chance to pull away. This kiss, however, was immediately teeth and tongue. Katsuki was suddenly too close, yet not close enough, and he pulled the blond to him by his waist, clinging to him as Katsuki licked into his mouth, which was now familiar ground. Katsuki hands fisted into Kirishima's hair, forcing the redhead's face closer and his mouth deeper. He fitted his knee between Kirishima's legs, splaying his legs and rubbing against the erection there. Kirishima couldn't breathe. It was one of those times that Katsuki was the only thing that Kirishima could sense. He smelt like smoke and soap, a unique combination that served as an aphrodisiac for Kirishima now. His mouth tasted like toothpaste, and he must of brushed his teeth while he grabbed whatever he needed from inside. He was breathing hot and ragged on his face, and his body was hot and strong underneath Kirishima's, and he was hot, as hot as a furnace, and when he opened his eyes, Katsuki was there, blond hair messy and eyes heavy lidded and pupils blown, and Kirishima was drowning.
He thought he was going to cry when Katsuki pulled away, maybe seconds later, maybe an hour later, he didn't know.
"Do you want me to stop?" He teased, and Kirishima didn't know if he could say anything, he just breathed raggedly into the space between them. Katsuki smirked, and he kissed along Kirishima's jawline as the redhead just tried to catch his breath. His hard grip on his hair released, and he started running his fingers the still-damp red locks. He hummed to himself, and eventually Kirishima's breath evened. He was glad that he could think, because it was a serious concern for a minute that he would not be able to again.
"Why have I never seen your hair down?" Katsuki eventually asked, one of his hands slipping under Kirishima's shirt to rub his nipple with the thick pad of his thumb. His mouth was on Kirishima's neck, and his knee stayed in its place. Kirishima swallowed the keening noise that wanted to escape.
"I don't really like it down," He said, his breath hitching. "Also, it gets in my way when I - uh - harden."
"Is that right?" Katsuki asked, sneering at Kirishima as he dragged his knee against his crotch again. Kirishima whined, and Katsuki finally gave him what he wanted and kissed him again. It was slower this time, more like how Katsuki liked to kiss, and Kirishima couldn't really begrudge him. Losing control like that was a little disconcerting, if he was being honest. He dropped his leg, and Kirishima pulled their hips flush, gasping at the friction between the bulges. Kirishima was painfully straining against the fabric of his thin pants, and Katsuki seemed to be in a similar position. He rutted against him, and smiled when the blond cussed before deepening the kiss. A part of Kirishima wanted to stay here forever, just making out with Katsuki, their hands hot against each other's body, but his exhaustion was hovered outside of his arousal, threatening to break in if they didn't move on.
So, he slipped one of his hands under Katsuki's shirt to rub circles on his hips, and grabbed a handful of blond hair and deepened the kiss. Katsuki growled, and wrapped an arm around Kirishima's shoulders to pull him away from the tree and hooked his leg around Kirishima's hips, slotting their erections so they rubbed together harder. Kirishima was appreciative of many things, but there was nothing he appreciated more than Katsuki's flexibility. His tongue danced across the blond's teeth, tangling with his tongue. They grinded against each other, swallowing each others moans and hitched breaths. They ran hands through hair, pawed at backs, petting each other heavily. Each roll of hips made Kirishima feel like he was on fire, and he could feel his climax approaching quickly.
When Katsuki pulled away that time, he almost screamed at him.
"What are you doing?" Kirishima couldn't help but demand. Katsuki smirked, stuffing his hands in the pockets of his baggy sweat pants. He looked like a wreck. His hair stuck up in a thousand different directions, flat in other places where Kirishima had pulled it down. His lips were red, swollen and slick. His pupils were so blown that they almost overtook the red, and his skin was red and splotchy. His sweatpants were hanging lower on one hip than the other, and his shirt's hem was mangled. He shouldn't look beautiful, but Kirishima didn't know if he could take his eyes off him.
"I wanna try something," Katsuki admitted, and his expression suddenly grew a little uncertain, keeping Kirishima from questioning him further. He pressed something in Kirishima's hand, and leaned in to whisper in his ear. "I want you to fuck me."
Oh.
Oh.
Kirishima looked down in his hands, where a bottle of lube and a condom had been placed. He was suddenly reminded that Katsuki hadn't ever actually had sex either, and his heart started to race, and he ended up blurting out, "You brought lube to camp?”
Katsuki blinked at him like even he couldn't believe the stupidity of what Kirishima had actually said. Then, he scowled and looked away, his face quickly going red.
“I thought we might have a little time to ourselves.”
“Why a condom? We’ve never bothered before.”
“I thought, disposal - fuck! Fucking forget it then if you are going to ask all those damn fucking questions!” Katsuki snapped, grabbing at the things in Kirishima’s hand. The redhead quickly dodge his grasp and held his arm as high as he could.
“No, no! I’m sorry, I’m just not really thinking straight -”
“Fucking duh.”
“ - and I sort of short-circuited. I’d love to fuck you!”
“God damn keep your voice down!” Katsuki said harshly, his face scarlet. He gave up his fight for the materials. “We aren’t that far away from camp.”
Kirishima nodded, and then leaned in to kiss the blond. He was suddenly glad that he had, in a spurt of optimism, researched anal sex a while ago. He kept kissing Katsuki while he pushed the blond’s pants down, his free hand stroking the blond's cock. Katsuki moaned, and pulled away to bury his head in Kirishima’s neck.
“‘M gonna end up coming if you don’t fucking hurry,” He muttered, and Kirishima nodded. He pressed a kiss to the blond’s temple, and then turned him around. Once he was where Kirishima wanted him to be, he dropped to his knees. He pressed kisses down Katsuki’s spine, taking the chance to knead at his ass. They rarely got undressed enough for him to really get a good look, and he was glad he was getting the chance now. It was tight, like the rest of his body, and full. Bigger than his baggy pants tended to show, anyway.
“Katsuki, you’ve got a bubble butt,” Kirishima teased, and Katsuki turned to growl something at him, so he bit at the junction where his ass met his thigh, causing the other teen to choke on his words.
He continued to press kisses to his thighs and back while he opened the lube. He poured some on his fingers, making sure to coat them properly, and then he moved away so he could see what he was doing. He rubbed Katsuki’s hole with his thumb on his other hand, just small, little movements to relax the muscles. When it started to give away, he replaced his thumb with his lubed up finger. He kept rubbing back and forth, pressing against the hole with each swipe, letting the tip of his finger sink in before pulling it back out, making sure the opening was properly lubed up.
“You fucking tease,” Katsuki bit out, and Kirishima looked up to see the blond leaning against the tree, biting into the side of his hand. Kirishima grinned at him, and let his finger sink in more the next go around so he could see the way it made him shudder. It was so hot.
He pulled his finger out to apply more lube, trying to be careful. He really didn’t want to hurt Katsuki, although he didn’t dare voice that concern unless he wanted to have an explosion applied directly to his forehead. This time, his finger sunk into the heat smoothly. It was very different from anything else Kirishima had felt. It was tight, silky smooth, and the idea of putting his dick in it made him shiver.
He was moving slowly, and he could tell that it was pissing Katsuki off. Partly, because he could feel the way his body was tightening around his intrusive finger. He bit his lip, a little amused. He pressed more kisses against the boy’s hip, gentle nibbling the flesh there at times. If he bruised this place, it would be easier to hide.
“You’ve got to stay relaxed, babe,” he murmured. He started pressing against the inner walls of Katsuki, searching for his prostate. The blond grumbled something, but Kirishima could feel him relax. Knowing that he knew exactly what was going on with the older boy, knowing that he was intimate with him on a whole different level, was making his dick throb in his pants.
He eventually found a bump, and he experimentally circled it with the tip of his finger. Katsuki gasped above him, and his legs shook a little bit. Kirishima couldn’t help but smirk.
“Does that feel good?” He normally wasn’t one for dirty talk - they rarely both had their mouths unoccupied anyway - but there was something about the silence of the woods, and the way Katsuki was shaking that made him want to try it.
He swirled his finger around the gland again, and Katsuki shook another time, the muscles in his thigh twitching. The blond nodded after a second, apparently not trusting himself to talk.
“I wanna hear you say it,” Kirishima said, applying a little more pressure. The blond gasped, audible even over the way he had his hand shoved in his mouth.
“C’mon, say it babe,” He insisted again, this time pausing his motions. Katsuki turned to glare at him, his eyes blown and his lips red and slick. In the moonlight, Kirishima could see the indents his teeth had made in his skin.
“Fuck y-” Kirishima pressed down again, and a broken moan fell from Katsuki’s lips. The blond leaned his head against his fist and breathed heavy for a second. “Fuck, yes. God, yes, it feels good.”
“That’s what I wanted to hear,” Kirishima said, preening. He grinned at the blond when he opened his eyes, ready to glare again. The harsh reaction melted away however, and he turned away.
“More,” he asked, and Kirishima licked his lips. He uncapped the lube with his free hand and pulled his first finger half way out to apply lube to it and the other finger he had lubed up earlier. He carefully slipped both fingers in this time, slowly scissoring as he went. He knew this was an important step, but Katsuki's impatience was starting to get to him. He wanted to be inside of the blond yesterday Even then, he circled his fingers around the prostate, made the scissoring motions, and continued on like that until he could slip in a third finger. He wasn't at that long before Katsuki was pressing down into him, apparently tired of waiting.
“Fuck, Kiri, I need you,” He gasped, and Kirishima ignored him for only a few seconds before withdrawing all of his fingers. He wiped his hands on the grass, shoved his pants down, and fumbled with slick fingers to open the condom wrapper.
“Hurry the fuck up,” Katsuki whined, spreading his legs a little. Kirishima wanted to say something, but the scene in front of him was so obscene he just nodded, finally shoving the rubber on himself. He leaned over Katsuki’s back as he lubed his cock up, kissing the blond’s neck. The blond turned his head, and he awkwardly caught his lips in a kiss. When he pulled away, he covered Katsuki’s mouth with his free hand and lined himself up.
When the tip slid in, Katsuki bit into his palm, a strangled sound escaping from his throat. Kirishima smiled to himself, and draped himself over the blond again, burying his nose in the hair at the base of the blond’s neck. He wrapped his other arm around Katsuki’s stomach, and slowly started to sink in.
He had never felt something so divine. Even Katsuki’s talented mouth couldn’t compare. The heat was intense, especially in the walking furnace that was Katsuki Bakugou, and even after all of the stretching it still squeezed down on him. A part of him wished that he had gone in raw, but this probably would make cleaning up easier.
This close, he could hear the moans in the blond’s throat before they were smothered by his palm. Katsuki whined, and Kirishima could tell that he wanted to bear down on his dick. Fuck. One of the blond’s hands supported them both against the tree, and the other came to grab at Kirishima’s hand around his mouth, his fingernails digging little indents.
When Kirishima bottomed out, he experimentally rolled his hips, and Katsuki clenched around him with a strangled moan.
“Fuck, babe,” Kirishima couldn’t help but mutter, and the blond did bear down against him this time, a wordless command to get a move on. He rolled his hips a few more times, thrilling in the way Katsuki’s knees went weak and he leaned heavily against Kirishima’s arm for support.
He started thrusting then, pulling out only to quickly slide back in. Katsuki made a keening sound in his throat, and only Kirishima’s very tenuous willpower was able to keep him from pounding his ass. He still didn’t want to hurt the blond.
“You feel so good, babe, you feel so good,” He muttered, not really thinking, and Katsuki’s head reared back, pulling away from his hand.
“Fuck, Kirishima. Fuck , fuck,” He kept cussing, his voice low and breathy, to the rhythm of Kirishima’s thrusts. He was like puddy in his arms, pressing against the redhead and shaking, knees weak.
“Faster, fuck, faster,” He muttered, and what could Kirishima do but comply? He managed to hit Katsuki’s prostate, and the blond’s words devolved into small moans and nonsense words, and Kirishima made sure to hit it with each thrust after that, whispering nonsensical things into the blond’s ear.
He felt his orgasm come on entirely too soon. Not wanting to come alone, he wrapped his now free hand around the blond’s dick, stroking it roughly and as consistent with his thrusts as he could. The blond clenched around him after only a few strokes, a strangled cry on his lips. Kirishima came shortly after that, unable to persist against the way Katsuki’s walls clenched around him.
After he was spent, he managed to pull the condom off and tie it up before draping himself heavily over Katsuki, both of them being held up now by the tree. They breathed heavily, and Katsuki turned his head so Kirishima could kiss him lazily. They stood there, leaning against each other, as the night air cooled the sweat on their bodies. If felt like an hour, but had only probably been a few minutes when they finally pulled away to compose themselves. They pulled their pants and underwear up, and Katsuki frowned down at the stripes of cum he had left in the grass. Kirishima laughed when the blond just rubbed them into the ground with his shoe, making sure to wipe it off in a different pile of grass. Kirishima pulled him in for another kiss, his exhaustion coming back twice as strong now.
“Come on, fuckface,” Katsuki said, his voice soft and little affectionate. “Let’s go to bed.”
"It's a little strange," Kirishima started, covering his face to stamp down a yawn. "That we are now, officially, fucking, and we still don't call each other by our first names."
Katsuki scowled and rolled his eyes. "You can call me Katsuki if you want, dumbass, I just wouldn't do it in front of people unless you want to fucking answer questions."
Kirishima hummed happily. "You could have started calling me Eijirou weeks ago."
"Not a chance, shitty hair."
They stumbled back to the boys’ room, and Kirishima was a little surprised they managed to actaully get away with that without be caught. Not by the teachers, and not by the other students. But, then again, he guessed with the fatigue everyone felt, it was more understandable. Katsuki laid back down where he had been before, but Kirishima hesitated for a second, still unsure of where to sleep.
“. . . the fuck you doing?” Katsuki mumbled quietly, and Kirishima gestured to the disorganization in the room silently. Katsuki rolled his eyes and waved a hand at all of the floor space between him and Kouda.
“Lay there - ain’t like anyone is gonna fucking notice.”
Kirishima wanted to protest, because people would notice, he was sure of it, but when he blinked he had a time opening his eyes back up, so he just grabbed one of the misplaced blankets and laid in between Katsuki and Kouda. He opened his eyes to catch one last look of Katsuki in the dark before he went to sleep, the blond’s face already lax. He looked so peaceful, so sweet. Kirishima closed his eyes, and fell asleep with warmth in his chest and a smile on his lips.