Chapter Text
It was entirely different riding on Katsuki's shoulder when he was in his class uniform or even his tank top compared to when he was in his hero uniform. To begin with, Izuku wasn't exactly on his shoulder, but was instead braced against the slope of Katsuki's neck, on the inside of his neck guard so he wouldn't get blown backwards when Katsuki exploded forward.
With One For All, Blackwhip, and his new wings, Izuku was incredibly fast, but his tiny size made falling debris a lot deadlier and after the fourth close call during a fight on their patrol shift, on the third day of being a fairy, Katsuki snatched him out of the air and set him in the space beside the neck guard.
“Stay the fuck there, Izuku!” He snapped viciously, popping his explosions behind him to redirect his trajectory. “If you end up like squashed bug guts, I'm going to be so fucking pissed!”
“I'm fine, Kacchan! I wasn't going to get hit- Down!” Izuku’s warning came just in time for Katsuki to drop out of the air. He cupped one hand around Izuku as he landed in a roll, then jumped back up to blast an AP Shot at the villain they had been facing off. Their opponent wasn't particularly clever, but with a quirk that allowed him to throw chunks of cement at them like heat-seeking missiles, he didn't have to be. He just had to be relentless and lucky.
“We need to split up, Kacchan-”
“Are you out of your goddamn mind?!” Katsuki snapped, kicking off the side of a condemned building to dodge another piece of concrete that was launched at him from the destroyed sidewalk. The villain was running through a demolition site of several apartment buildings, scooping up handfuls of bricks and giant rocks to pelt at them. All for a handful of cash he had stolen from a convenience store.
“I can handle it and you'll never get close enough-”
“Fucking watch me!”
Katsuki fired his next shot toward the building the villain was running toward and the whole thing shuddered before a massive chunk dropped, cutting off the villain’s path. Katsuki laughed in victory as he blasted forward through the dust, only to shout a curse as the same chunk he loosened came hurtling toward him. He dodged jerkily and Izuku grit his teeth as he took the opportunity to spring off Katsuki's shoulder with the shifting momentum, crackling with One for All like glitter as he blurred into a trail of electric green, zipping between rocks and bricks and dust, wings fluttering so fast they were vibrating his whole body.
He cocked his arm and screamed out against energy pulsing through his body just before he made impact directly into the next enormous chunk of rock and completely shattered it into a cloud of dust. The villain behind it widened his eyes just to get a perfect view of Katsuki right behind Izuku, reaching forward with both hands, one to grasp his fairy partner protectively and the other to unleash a massive explosion that consumed them all.
As the dust settled and silence rang through the air, Izuku squinted open his eyes to find himself clasped securely to Katsuki’s chest, his hand around him like a shield. Katsuki was breathing heavily, causing his pecs to swell and shift against Izuku, and standing over the villain with one foot on his chest, an unnecessary restraint since the man was clearly unconscious in the crater the explosion left. And thankfully still alive based off the weak groan coming from him.
Katsuki staggered back, squishing the villain a little for good measure before looking up to signal the helicopter above them that it was now safe for the police to come down and restrain the criminal. He accepted a bottle of water from one of the office that rushed into the scene from the street, popping the cap off with his teeth to take a swig before finally releasing Izuku from his chest and tipping the bottle for him to sip.
Izuku drank greedily, then pulled at the mouth of the bottle to tip a stream over his head and wings, rinsing away the coating of dust from destroying a piece of concrete that was the size of a skyscraper to him.
Katsuki curled his lip at the sprinkling of water flicking everywhere as Izuku shook himself dry again, then snatched Izuku out of the air to tuck him into the front of his tank top, right above his X. Izuku folded his arms over the fabric awkwardly.
“I ought to cut those wings off you, fucking bastard,” Katsuki said nastily as he started heading back to the school. “I told you to stay put.”
“I told you I could handle it! And I did, didn't I?” Izuku snapped back, scowling up at him.
“Only because I had your back! If I wasn't right there, he’d just have to clap his hands to kill you!”
“And you would have been slowed down by that boulder, which you created by the way, if I hadn't smashed it, and we'd still be chasing him around!”
“You had no idea you'd be able to smash it! It was a lucky, risky guess!”
“It was a calculated choice!”
“Calculate this!” Katsuki poked down on Izuku's head, making him fall inside his shirt to slide along his hard, sweaty abs.
Izuku gasped, feeling the ridges of Katsuki's muscles rise and fall beneath his ass. He tumbled to a stop at the waistband of his pants where his shirt was tucked in, forming almost a hammock. He felt Katsuki’s laughter rumble through his whole body as he turned to reach up and clasped the edge of his belly button to keep himself upright. Heat rushed to his face as he realized the intimacy of his position.
“Oi! Stop tickling!” Katsuki laughed louder, snorting as Izuku accidentally bumped his foot into his lower stomach. His hand pressed against Izuku from the other side of his tank top, pressing him into his skin.
“K-Kacchan-” Izuku inhaled sharply as his cheek squished against his abs. Not that Katsuki could hear him. He tried to brace his foot against the edge of his waistband, where the fabric was firmer.
His whole body was flushing with desire, heating his body and hardening his dick as Katsuki cupped him against his stomach, and he shifted his balance to try to get a little more space, shuddering when his lips slid against hot flesh.
Izuku closed his eyes, inhaling deeply, and then took another calculated risk, an enormous risk, hoping Katsuki couldn't tell what was what in his shirt because he couldn't resist just wetting his lips a little, and if his tongue swiped against firm skin, Katsuki probably couldn't tell.
“Hey, are you alright? Did I fuck up your wings?” Katsuki asked, his voice growling through his body into Izuku's mouth. Izuku groaned and couldn't help kissing him, dragging his tongue up one of the lines of his abs, licking sweat like candy.
Suddenly light filtered in from above him and Izuku jerked back as Katsuki peered down at him. His foot slipped and he yelped as Katsuki barked out another laugh against the tickling, pulling at his shirt hastily, then Izuku's feet slipped further and he shot down from Katsuki's shirt into his pants.
Where Katsuki was only wearing a jockstrap.
Which Izuku grabbed at blindly to stop further descent.
He came to a halt laying against the half-hard bulge of Katsuki's cock.
“Fuck!” Katsuki hissed. He cupped Izuku through his pants, cradling him against his cock as he seemed to start jogging awkwardly, probably darting down an alleyway out of sight.
Izuku’s mind was fluttering with thoughts so fast, he could barely process any of them completely and they all became an amalgamation of “oh holy fuck,” “Kacchan's cock is getting harder,” and “he smells so fucking good.”
And he couldn't help it. He couldn't help it. He dragged his hands along the length of Katsuki's dick and rubbed his whole body against the hard shaft.
Katsuki’s body jolted hard as if he fell back against a wall, and a soft, low moan melted through him until he cut it off abruptly, breathing heavily. His waistband pulled open above Izuku and then gentle fingers were slipping around him to lift him up. Izuku raised his head to meet Katsuki's helpless, alarmed red gaze as he was freed from his clothes, and he finally noticed that Katsuki was apologizing profusely.
“-so fucking sorry, shit, Izuku, are you okay? I'm- I didn't mean- fuck-”
Izuku shifted to drop to his ass on Katsuki's palm, feeling strangely exhausted and disoriented, and a laugh escaped him breathlessly.
“S’okay,” Izuku said, taking a deep breath and running his hand over his face and up through his hair. He chuckled weakly. “I-I'm sorry, too, uh, I-”
Izuku's words failed him and he watched as Katsuki swallowed hard, similarly lost, until Izuku finally just blurted, “you smell like nitroglycerin down there, too.”
Katsuki blinked at him, then burst out a disbelieving laugh and covered his eyes with his free hand as his whole face went from fearfully pale to strawberry red. “Are you fucking kidding me?” He whispered to neither of them in particular. He slid his hand down to cover his mouth instead and furrowed his brow at Izuku. “You were analyzing my quirk’s effect on my dick?”
Izuku winced but tilted his head a little, curiosity getting the better of him despite everything. “D-Does it work down there too?”
Katsuki busted out laughing, loud and hard, doubling over and closing his hand around Izuku with natural care as he shook with amusement. “Are you- ahaha! are you seriously- asking if I have an explosive dick?!” He covered his whole face with his other hand as he lost his shit over the question, laughing too much to even hear Izuku if he tried to answer.
And as embarrassing as it was, it was so much better than Katsuki asking if Izuku's had been full-body humping his dick, so he would gladly take it.
—
Katsuki was pissed and someone was going to die.
“What the FUCK do you mean, he just disappeared?!”
“That language is unnecessary-!”
“Suck my dick, four-eyes! Why the fuck can't you goddamn friends keep the nerd safe ever?!”
“Hey! That's not fair, Bakugou-kun,” Uraraka snapped, but her expression reflected just as much worry as Katsuki felt.
“You told me he was going to be safe with you two! You fucking bit my head off for hogging him or what the fuck ever you were accusing me of, how was that fair? And one hour out of my sight, he goes missing again!” Katsuki snarled. He shoved past Uraraka and Iida to stalk toward the dorm exit.
“He was safe with us,” Iida insisted. “And he can take care of himself, you know that.”
“Then where. the fuck. is he?” Katsuki hissed, whirling on the spot to glare at Izuku's best friends. They both hesitated, unable to truly answer.
“W-we were on our way to the vending machines,” Uraraka offered. “An underclassman needed help carrying some large equipment to the gym and I swear we were only helping for a minute. I thought he was flying right next to us.”
“Which underclassman?” Katsuki asked, narrowing his eyes.
“I believe she was in 2-A?” Iida said with less confidence than Katsuki wanted to hear, but it would have to be enough for a start.
—
Izuku was in trouble. Somehow (he wasn't even really sure how), he had just been kidnapped by a freshman girl, and while that was bad enough, it had happened while he was hanging out with Uraraka and Iida after they had both gotten into an argument with Katsuki that Izuku didn't have to be with him all the time and they could take just as good care of him as Katsuki and Izuku could take care of himself anyway.
Izuku had apologetically told Katsuki that it was alright, that he'd just see him at bedtime, and the look of angry betrayal on his face had crushed Izuku's heart. Honestly he also just wanted to stay with Katsuki, but he missed his friends, too, and wanted to catch up with them. He couldn't just shut them out for a week because he was a fairy.
So the three of them went out to walk around campus for some fresh air before finally heading to vending machines near the cafeteria in the school building for snacks. When they were passing the gym, a younger student had needed help with carrying soccer goal posts, and before he knew it, Izuku had been snatched or yoinked or something by an invisible force.
He couldn't believe Danger Sense hadn't even hummed at him. Apparently it didn't work on harmless, overzealous girls who were fanatic about fairies. And yes, there was more than one such girl, if the crowd of young ladies passing him around like illegal contraband were anything to go by. Four of them were clustered on the other side of campus under a lamppost, behind a grove of trees that blocked sight of Izuku’s distant dorm.
Danger Sense clearly had no idea how dangerous this situation actually was. Izuku was in so much trouble—Katsuki was going to kill him.
“E-Excuse me, but-” Izuku tried, but the girls broke out in giggles as his quieter voice.
“You’re so cute, Midoriya-senpai!!” One of the girls reached toward him where he was clasped a little too tightly in someone's fists and clumsily pet him on his head, exacerbating his building headache.
“I love how his wings fit so cute through the little cuts on the back of his t-shirt! Is it hard to get them in and out, Midoriya-senpai?” Another girl chirped, ruffling her fingertip against his wings. He tried to fold them down as much as possible.
“Please-” Izuku gasped as another girl pinched his arm to tug him away from her friend. He didn't want to have to use force on these girls. They weren't using their own quirks beyond the Yo-Yo quirk one of them had that kept yanking him back to them every time he tried to zip away. It was similar to his mom's telekinesis quirk, but much more powerful and less picky about what it worked on, and apparently the girl could sling things out and back again, just like a Yo-Yo, but this was no time to get into the thick of quirk analysis!
“Hey, hey, get a picture of me holding him,” his newest captor said, pinching both of this hands now and forcing him to flying in front of her or else hang uselessly in her grip.
“Please! Let go–”
BOOM!
Izuku winced at the deafening sound of the explosion just above him that took out a lamppost in a shower of glass and splintered metal that skillfully avoided hitting anyone.
“Kacchan!” Izuku called in relief, despite how this situation just got even more dangerous.
“You fucking brats!” Katsuki shouted as he landed where the lamppost used to be. “What the fuck do you think you're doing with him?!”
The girls yelped in fear, but the one with the Yo-Yo quirk snatched Izuku from her friend, nearly dislocating his shoulders, and attempted to stand up to Katsuki, only to cry out in pain when he grabbed her wrist and swiped his leg to kick her knees out from under her while simultaneously spinning her around, pinning her to the ground with one arm behind her back—the one that held Izuku. Katsuki squeezed her wrist harder.
“Let him go.” It was so much worse when Katsuki wasn't shouting. The girl jerked her hand to release Izuku and Katsuki swiped him up in a strong, gentle grasp before finally shoving the girl away. She stumbled and caught herself as Katsuki let her go, then glared back with tears in her eyes.
“You're so mean!” Her friend shouted, hiding behind Yo-Yo even as she tried to stand up for her.
“I can be a lot meaner,” Katsuki growled threateningly. The girls backed up as a group. “If he has one bruise on him, I'll fucking beat your asses.”
“We'll help!” Uraraka called out, suddenly appearing behind Katsuki and Iida as they came across the campus. Katsuki shot her a dirty look but didn't argue.
“I believe it will leave more of an impression to take this up with the teachers,” Iida said stiffly, obviously pissed as well. “I do believe holding a student against their will is grounds for expulsion.”
“What?!” One of the girls gasped. The others scrambled to defend themselves.
“We were just hanging out with him!”
“Yeah, he was having fun!”
“You can’t expel us!” One of them started wailing. Katsuki exchanged a look with Iida and Uraraka, receiving a nod from both of them before he finally marched off, uninterested in another word the girls had to say.
“Thank you, Kacchan…” Izuku said, finally relaxing in his warm, strong hand.
“I should kick your ass too, Izuku,” Katsuki snapped quietly as the chaos behind them faded into the cool evening. He glared at Izuku, but Izuku just scooted down further into his grasp, completely unworried as he closed his eyes against his tender headache.
“I'm sorry, Kacchan.”
He probably should have told Katsuki to stay with the group so he could give his account of things, but the teachers could come find him later. He was exhausted now, and just wanted a shower and sleep. He felt Katsuki come to a stop and he opened his eyes to look at him curiously.
“Are you hurt? Do you need to go to the nurse?”
“Mm, no, I'm fine. Just- it's nice hanging out with Uraraka-san and Iida-san, but I wish I had stayed with you. That's what I wanted to begin with.”
“Hmph,” Katsuki grunted, continuing on his way back to their dorm. “Dumbass. Speak up for yourself if you want something.”
“Well I figured you could use a break from me…”
Katsuki stopped short again and glared down at Izuku, clicking his tongue. “Idiot. If I needed a break from you, I'd say so. Why the fuck did you think I tried to keep you?”
Izuku felt a blush creep up his face at his wording. “W-well I know you feel responsible for my safety-”
“Hahh? I ain't responsible for shit. If you want to get squashed, that's not my fault.”
“But- then why-”
“Just because it's not my responsibility doesn't mean I don't want to keep you safe.”
Izuku and Katsuki stared at each other in silence for a long moment as Izuku's heart pounded faster in his chest. He swallowed tightly, then Katsuki snorted dismissively through his nose before carrying on once more.
After a few steps, Izuku shifted and Katsuki automatically opened his hand to let him flutter free of his grasp. Red eyes tracked him as he flew up to sit on Katsuki's shoulder, close enough to lean against Katsuki's neck, resting his cheek against him in silent intimacy.
Katsuki shivered hard, then grumbled out a petulant, “Tickles…”
Izuku chuckled but didn't move away, feeling a buzz of pleasure when he found Katsuki's pulse racing beneath his skin as well.
—
They made it back to Katsuki's room without further interpretation or incident. Iida texted Katsuki that the teachers would want to talk to Izuku the next day, and he responded back a quick “fine” before setting his phone to Do Not Disturb for the night.
Before Izuku could retreat to his small bedroom, Katsuki lifted him gently from his shoulder and then fell back onto his own bed, drained from the stress of trying to find Izuku. It had taken way too long to track down the girls after knocking on their dorm doors and getting nowhere with that. And when Katsuki finally did find Izuku just by scouting the campus from above, he had been livid to see the nerd getting yanked around and mishandled by a bunch of goddamn brats who didn't seem to even understand they were hurting a fucking war hero who had nearly died to save them and the rest of the damn world.
Katsuki set Izuku on his pillow as if it were the most natural thing in the world, as if it were where he belonged, and Izuku inhaled deeply and slowly before shifting his wings out from under him with a sharp wince as a kinked muscle pulled in his back.
“You sure you're not hurt?” Katsuki asked, turning so he was laying on his side with his head propped on his fist.
Izuku shook his head and tried to reach behind himself to rub at a knot. “I'm okay. I was sore before those freshmen caught me. Just never used these muscles like this before.”
Katsuki studied him for a long moment. “...Roll over.”
“Hm?” Izuku asked, glancing up at Katsuki in confusion, but instead of repeating himself, Katsuki pushed at him with one finger until Izuku was toppled over onto his stomach. “H-hey!” He tried to shove to his knees to glare at Katsuki, but then melted under a firm touch between his wings. He moaned loudly, unable to control himself, and buried his face into the bed as Katsuki applied a little pressure, tilting the pad of his finger to massage around his shoulder blades and spine.
“Oh my god, Kacchan…” Izuku groaned into pillow. He turned his neck, pressing back into Katsuki's touch with his eyes closed, blissed out with pleasure and relief in his sore back.
Katsuki swallowed tightly as he watched Izuku indulge in the massage, his body responding to his touch instantly and almost hungrily. His t-shirt rode up a little and Katsuki hesitated only a moment before pushing it up higher to stroke his finger under the fabric against bare skin. Izuku moaned again, flexing under his touch, his wings shivering in pleasure.
Even in this miniature form with dragonfly wings sprouting, Izuku's body was a work of art. Strong planes of muscle shifted, catching shadows and light in a way that highlighted the pure power of his back. Even as lean and small as he still was at eighteen (at normal size), he was built like a brick wall, hardened by countless impacts and injuries over the years.
Katsuki nudged the t-shirt further upward, tapping Izuku to signal for his cooperation, and Izuku reached back to pull the shirt over his head without hesitation, sliding it off his wings with a gorgeous arch of his shoulders before tossing it aside. He flopped back down as Katsuki stroked his whole palm down his back carefully. Izuku stretched languidly, wisping his wings against Katsuki's hand to tickle him, and Katsuki smirked, dragging his forefinger down his spine again slowly, working a few pops out of his joints, all the way down to his lower back. Then his heartbeat spiked when Izuku tipped his hips back, lifting his ass in a beautiful slope.
Izuku couldn't stifle the breathless moan that escaped him. Half-naked under warm fingers, his body was responding like an instrument made just for Katsuki, fine-tuned to his every stroke, singing for him. When Katsuki's finger trailed all the way down his back, Izuku arched his ass up for him, his mind doused in liquid pleasure that pooled in his pelvis and filled his cock. Katsuki rubbed small circles back up and then slid down again in another long stroke and Izuku moaned deeply, thrusting his hips back with no self-control. And then Katsuki went lower, tracing the swell of his ass and catching his blunt nail on the waistband of his shorts, and Izuku was gone gone gone.
“K-Kacchan,” slipped out of Izuku's mouth in a needy moan and Katsuki licked his dry lips as he pet his thumb and forefinger up his flanks, then rushed his touch back down again, this time sliding one finger directly down the line of his ass, pressing lightly where his entrance should be under his shorts. The material was so thin and soft, Katsuki could feel the crease between his ass cheeks. He didn't realize how hard he was breathing himself until Izuku gasped in sync with him, fisting the pillow case fabric and spreading his legs to press even harder into the touch, completely consumed by the heat Katsuki had stoked within him.
Molten pleasure flooded Katsuki at knowing he was the one doing this to Izuku, that his powerhouse of an equal was unraveling for him, giving himself to him. The heat from the day before when Izuku has fallen onto Katsuki's cock after patrol rushed within him, bringing back the feeling of Izuku's whole body dragging down his length. When Katsuki had looked into his clothes, Izuku had seemed flushed and lustful too, but Katsuki had written that off as his own desire. But now…
Katsuki dipped his finger low to pet the underside of Izuku's balls through his thin shorts and Izuku opened his mouth to moan lewdly as he humped back against Katsuki's finger. It was the final straw that Katsuki himself could handle and he hooked his finger inside Izuku's waistband to pull his shorts down his ass and thighs, earning a cry of begging pleasure from Izuku that had Katsuki so hard in his own pants that he almost came just from the sight and sound. His mind was shot, frayed with lust, all logic thrown out the window.
Izuku's tight, naked ass was lifting high, his thick thighs spread wide so his cock was visible hanging below him and Katsuki didn't even think. Couldn't think. Such a beautiful sight offered to him by the only man he wanted to consume that his body just moved on its own, took what he needed. His hero. He needed to worship him, treat him how no one else could. Katsuki braced himself over Izuku and lowered his head to lick under Izuku from the heavy fruit of his balls all the way up the line of his ass, shoving his tongue to slip between his cheeks and prod at his entrance.
Izuku shouted loud and long in ecstasy. He fought against the strain of his shorts still wrapped around his knees, and Katsuki opened his hooded eyes to help him pull the last of his clothes and shoes off before pushing him over onto his back, revealing his taut stomach and chest, his naked body flushed with desire as he looked up at Katsuki in dazed wonder. His arms were stretched over his head, hands twisted in the pillow case as if to hold himself back, wings spread as wide as his legs, cock heavy and hard and huge, straining up towards Katsuki. His whole tight body was an offering, presented to Katsuki like Izuku was a sacrifice to his god instead of the other way around, and their eyes only met for a moment before Katsuki dropped down on him and feasted, lapping between his legs, tasting between his thighs and up his delicious cock, dragging flat against his abs and then flicking lightly to taste his chest.
When Katsuki ducked back down to lick him from cock to pecs again like a lollipop, Izuku fucked up against his mouth, bucking his cock against his tongue helplessly, and Katsuki rewarded him with quick, hard, slick strokes that dipped under his ass and laved up his balls and shaft over and over until Izuku was screaming his name and coming so hard that his body slammed up against Katsuki's mouth and tongue, over and over, and Katsuki had to pin him with hot lips, tasting a bitter load of cum that was surprisingly large for his size.
Feeling drunk and mindless, Katsuki pulled back to sit on his knees as Izuku went limp on the pillow. He shoved his own waistband down, letting his cock bounce free and he stroked himself over Izuku, hard and dirty. His gaze was locked on his lover and Izuku peeked his eyes open to focus on Katsuki's length with pure, possessive obsession.
“Oh fuck, yes,” Izuku breathed, tipping his head back, his body still undulating with the aftershocks of orgasm. “Please, Kacchan, pleasepleaseplease…”
Katsuki swept his wet tongue over his other palm, slicking it up before swapping hands on his cock. He bit out a curse as his fist squelched over his length, sending shivers up his spine as his climax built, then Izuku sat up and rubbed at Katsuki's cock, his mouth open with his tongue hanging out so he could lick his precum like syrup before dropping his head back and dragging the tip of the cock down his throat and chest to smear Katsuki all over himself.
Katsuki dropped forward to brace over Izuku, one hand braced against the headboard as his other tightened around himself, wanting to hold back just so he could keep watching Izuku's maddening show. It was a losing battle. Izuku shoved the head of Katsuki's cock between his thighs and humped his own still-hard dick into the new well of precum that was forming again in his slit, and the sight sent Katsuki over the edge with a harsh cry. He exploded white liquid against Izuku's body, dumping his load all over his lap, covering him so thickly that it looked like icing had been poured over his stomach and thighs. And Izuku moaned obscenely, brow furrowed in vicious pleasure as Katsuki kept coming on him. He leaned forward, lifting Katsuki's cock and caught the final strands up his chest and against his own mouth.
Katsuki stared down in shock at the sight of Izuku, absolutely filthy with his cum. The fairy flopped back again, breathing hard as he slid his hands through the spunk down his body. He closed a fist around his own cock to massage Katsuki's cum into himself and reached down to his ass to slide his finger deep and slick within his entrance, then he came again with a soft, exhausted jolt, his body fucking against nothing but his own hands. He let go of himself and fell slack when he was done, keeping his bleary, darkly satisfied eyes trained on Katsuki's shocked face as his lashes fluttered dazedly.
“Holy shit,” Katsuki breathed, still panting, so stunned he didn't even know what to do. Not until an expression of worry seeped into Izuku's eyes as he seemed to realize what they had just done and that Katsuki was floundering.
“Kacchan,” Izuku asked tentatively, awkwardly naked and coated in cum, “Are-... Shit. Um. I-I just- Are you-…mad?”
Katsuki's brows shot up and his eyes widened in alarmed surprise. “No! Izuku, no. Christ. Let me-” he hovered for a second, then shook himself out of his daze. He pulled up his pants, then yanked his tank top off to carefully scoop Izuku up with it, grimacing in shame at the mess he was covered in. “I- Fuck. I'm sorry. Shit.”
Izuku pulled part of the tank top over himself as Katsuki stalked into the bathroom with him. He turned on the water and carefully set Izuku into the basin of the sink, tossing his shirt aside and offering his fingers for Izuku to hold onto as he guided him under the stream of cool water to rinse off.
Once all of the cum had run off him, Izuku swept his hair back out of his eyes and blushed under Katsuki's gaze, his confidence from earlier dissolving by the second as he tried to angle parts of his body out of sight.
“Um, I can take it from here…” Izuku said quietly, shyly, and Katsuki couldn't take it anymore.
“You're beautiful,” he blurted, gripping the edge of the sink as he kept looking down at Izuku with pure sincerity. Izuku blinked up at him, flushing a bright pink and stepping back a little.
“W-what-?”
“You're absolutely gorgeous,” Katsuki said, more sure of himself, and he heard the waver in his voice fade. Izuku shifted again but slipped in the sink, about to land hard except Katsuki shot his hand out and caught him gently, cupping his palm behind him. Izuku hunched his shoulders and covered his dick with his hands, his shyness increasing, and Katsuki felt himself soften as he stroked his thumb along one of Izuku's wings, causing the nerd to hesitantly lean back into the touch.
Katsuki crouched a little to bring his face even with the sink to get closer to Izuku. He slid his fingertip down his arm and then down the length of his hip and thigh. Izuku shivered and bit his bottom lip, watching Katsuki carefully.
Katsuki trailed his finger back up Izuku's other side, then stroked across his chest and up his throat to trace his jawline. He felt Izuku swallow hard and met his eyes for a long moment before dragging his finger back down his chest to push his arms out of the way and reveal his soft cock hanging heavily between his legs. Izuku slowly clasped his hands behind him and Katsuki dipped his finger lower to nudge his thighs apart to stroke his balls and cock from underneath. Izuku's hips rolled forward to slowly grind against the pad of Katsuki's finger and Katsuki exhaled with restrained pleasure.
“So sexy…”
“Kacchan,” Izuku murmured weakly, shivering when Katsuki slowly pulled away.
“I'm going to shower,” Katsuki said quietly.
“Okay…” Izuku watched him as Katsuki slipped his pants and boxers down completely to step out of them. Red eyes stayed locked on him as Katsuki got into his shower without pulling the curtain closed and turned on the warm water, adjusting the showerhead so it wouldn't spray into the bathroom. Izuku stepped back under the stream of the sink faucet to start properly sudsing up as well.
They washed slowly, watching each other with flushed faces as they massaged shampoo through their hair and rubbed washcloths over their skin, over the muscles they wanted to touch on each other, dipping between their legs to slide soap along their most intimate places.
By the time they were rinsing and turning off the water, Izuku was feeling frayed and desperate again, not quite hard–he was too spent to be hard again so soon–but overwhelmed with the need to just touch. He shook off his wings and hopped up onto the sink ledge with his small towel draping in front of him, his dark, hungry gaze clinging to Katsuki like a starved man finally getting a hot meal.
Katsuki stepped out of the shower and took a moment to dry off, his eyes never leaving Izuku who was watching him so intensely that it felt like they were facing off for a battle. But Katsuki didn't want to win this one, not in a way that meant Izuku lost, and he abruptly stepped forward to sweep Izuku up with caressing fingers.
He tossed his towel aside and stepped into his bedroom as Izuku turned a brilliant red and stumbled to land on his ass in his palm. Katsuki sank down onto his bed, laying on his stomach, and set Izuku onto his pillow. He glanced to the side to see a couple of wet smudges on the pillow case where cum had slid off Izuku onto the bed. In a quick but gentle movement, he snatched Izuku's mini towel from his lap and dried up the spots before flicking the towel toward his bathroom to wash it later.
“Kacchan!” Izuku yelped, pressing his legs together and covering his crotch with both hands.
“Now you're shy?” Katsuki asked with disbelief, folding his arms to set his chin on top, drinking his fill of Izuku.
“You were the one acting awkward, after-” Izuku hunched his shoulders defensively, suddenly too prudish to put it into words.
Katsuki didn't say anything and just kept studying him, taking in the way he crossed his defined ankles, how the bulge of his calves pressed against each other in beautiful sweeps from those ankles to widen up toward his knees. Green eyes stared back at him warily over his knees. Izuku's shoulders were drawn up, his arms wedged between his thighs, but Katsuki tilted his head a little to see the full curve of his balls peeking beneath him. Izuku's breath hitched and Katsuki dragged his eyes back up to take in blushing freckles and damp curls swept back messily. He knew from years of observation that those curls would spring free as they dried and would ruffle around Izuku's face.
Katsuki's head was still full of Izuku's obscene begging, of the way he had fingered himself with Katsuki's cum. Heat flooded Katsuki's cheeks and he tucked the lower half of his face behind his arms, but kept his eyes focused sharply on his little pixie.
“...What?” Izuku asked a bit defensively.
“I want to kiss you,” Katsuki confessed with a mumble, deciding it was stupid to be embarrassed about that after he had literally half-drowned Izuku in his jizz and the little freak had enjoyed it.
Even still, Izuku's eyes widened in shock like a kiss was more indecent than what they had just done.
Katsuki's eyes narrowed into a glare. “What? You got a problem with that?”
“No!” Izuku nearly shouted, almost frantic to correct his misunderstanding. “I want to kiss you, too!”
Katsuki blushed deeper and buried his whole face against his arms. “I can't believe I just defiled you like that…”
“Yeah, me neither,” Izuku said in heated wonder, and when Katsuki jerked his head up to glare at him again, he found the nerd relaxing the tension in his shoulders and scanning Katsuki's face with that same feral hunger as before. His voice lowered a little, his words becoming a soft, smoky confession. “I liked it.”
“Yeah, I could tell,” Katsuki huffed with amusement, his own voice gravelly with furtive pleasure.
Pink warmth bloomed under Izuku's freckles but instead of hiding again, he leaned back against the pillow and let one of his legs slide down as he folded his hand over his torso, revealing himself to Katsuki. He tipped open the leg that was still bent, somehow looking simultaneously shy and confident.
Katsuki shifted to lay on his side, tucking one arm under his head. His other hand settled along his ribs, hanging over his stomach. Izuku tilted his head a little to look down the length of Katsuki's naked body, taking in his heavy cock resting on one of his thighs. Even soft, it was bigger than Izuku right now. Long and smooth, with a twist of a vein visible, he wished it could fit in his mouth. And maybe it could later…
He looked up again when Katsuki inhaled deeply. Then the blond rolled into his stomach toward Izuku, resting so close on the pillow that he nudged Izuku’s ribs with his nose and pressed a chaste, appreciative kiss on his hip. His arm curled around him, boxing him in without smothering his space.
“Kacchan…” Izuku murmured in pleasure, rolling toward him, too. He kissed the bridge of Katsuki’s nose and Katsuki exhaled a warm laugh across his body. His wings fluttered lightly, partly from his breath and partly just from Izuku’s own happiness. Katsuki’s arm scooted a little closer, providing warmth and protection that lulled Izuku into an easy, deep sleep, and Katsuki soon followed after.