Archive of Our Own ^beta

Katsuki blasted and flew through the vibrant sky, soaring over streets of pedestrians. He aimed his hands to the ground and let out a large explosive blast, allowing him to gain height as he peered through the open air.

“The villain was reported proceeding down Miyuki Dori Street. Nearby hero units please attend to the situation accordingly” His com buzzed. Katsuki switched his direction in a split second, advancing down the road.

“Kacchan!” Katsuki snapped his head to his right and saw his hero partner use his palm to squint at a distance. “I see him! He’s by the blue convenience store.”

“I already fucking saw him, nerd!” Katsuki shouted back as they shot through the air. “Don’t tell me shit I already know.”

Izuku ignored him as he pressed his hero com. “Dynamight and I see him! We’re going to address the situation. Please clear the streets!”

They both swooped down to a nearby building to gauge the situation. The villain had a human build and sported a pair of large bulky gloves, from said gloves formed misty grey orbs that he shot at passersby running away. Around him, people were either sat crying or clutching their stomachs laughing.

“Kacchan, I’m going to go first and go around him, you deal with the front?”

“Get on with it!” Katsuki shouted with a scowl and Izuku beamed at him for a moment, a playful look on his face with hair flapping in the wind as he swooped down in an instant. Katsuki immediately dropped his scowl, letting an endearing smile wash over his face as he watched Izuku skillfully bring himself down, even doing a fucking trick in the air.

Katsuki wasn’t an idiot. He knew he was in love with the prick.

He spent a few years trying to figure out exactly when he fell for him, it might’ve been when they fought all those years ago at ground beta, or when he saw Izuku use his quirk for the first time, or maybe even in middle school, figured that was what all that pointless bullying was about.

At first, Katsuki spent so much effort trying to figure out what to do with his feelings, where to put them. When he first realized he was in love with the nerd in high school, he put the energy into his studies and getting better while avoiding him. The last part obviously didn’t work, Izuku managed to weasel himself into Katsuki’s life and now he found himself as his hero partner.

With all the sudden proximity, Katsuki found himself not being able to handle it in the beginning and even tried confessing to him a couple of times, but the fucking idiot never got the hint.

He tried with his words the first few times, but he was never good with words (“Aw Kacchan! You’re such a good friend”). Two valentines ago he cooked them both dinner, even bought a damn flower and vase (“Wow Kacchan! This way we can keep each other company since we both don’t have dates!”) He ultimately gave up, figured it was just not meant to be. Anyway, he didn’t want to ruin the friendship that they spent so long fostering. After spending so much time with Izuku in his day-to-day life, Katsuki settled that being able to be around the nerd was enough for him, especially since they made such good hero partners. Whenever he felt that sharp pang of damned affection, he realized punching himself in the stomach was an effective method for it to go away.

Katsuki jumped off the building and felt the wind through his hair and the adrenaline course through him, dropping down expertly in front of the villain who jumped, startled at his arrival.

“You’re dead” He snarled as he brought both his hands up and let out a fiery surge of explosions, not giving the villain time to react. The villain just barely dodged him, singing part of his costume as he jumped out of the way.

“You’re gonna have to be quicker than that Dynamight!” The villain shouted, shooting spiraling waves of the gray orbs towards him. Katsuki jumped over him, using his back as a catapult as he leaped into the sky and shot more explosions towards him from above. The villain staggered back when out of nowhere, Deku appeared at his side. The villain’s eyes widened as Deku wound his hand back and threw a strong punch, causing him to be thrown into the wall of a nearby building.

The villain groaned, lifting himself up from the debris and as he did, he saw Dynamight hurling straight toward him. In a quick movement, he lifted one hand, shooting an orb from his palm. It barreled toward Dynamight before Deku’s black whip apprehended the villain, snapping both arms to his side. Dynamight reacted quickly, pointing his hands to the ground to shoot explosions to ascend as he dodged it. With Dynamight out of the way, Deku only then saw the orb continue to speed through the sky, towards him.

Katsuki shouted out to him, but it was too late, Deku widened his eyes and winced as the orb hit his torso and exploded as a mist. With no other physical effect, he blinked and tightened black whip around the villain as he heard police sirens nearby.

The villain was quickly apprehended and handcuffed as he was thrown into the back of the cop car grumbling. Katsuki was instantly by Izuku’s side.

“Oi, that fucker got you. You okay?” He asked, hiding the pit of worry in his stomach that formed the moment Izuku got hit. The lack of reaction from Izuku allowed his worry to subside for the time being.

“Uh... Yeah. I think so” Izuku responded looking down at his torso where the villain hit him. “I don’t really feel any different”

“Yeah right. That’s what you said when you got hit by that quirk that turned your bones to rubber.”

Izuku shuddered at the memory, “I couldn’t walk for a week…” He mumbled reminiscing.

Katsuki flagged the police official over and crossed his arms as he explained to the two that the villain was resisting so they were still trying to figure out the specifics of the quirk, but it dealt with tampering with the victim’s emotions, which explained the civilians around them receiving medical help as they either cried, fumed, or laughed.

“You may be feeling fine now but the effects will probably take a little while to kick in.” The official told Izuku. “I will let the agency know so head home for the day. If you are feeling any symptoms, please come in and see the medic. Dynamight, please attend to your partner accordingly.”

Izuku looked dejected as he thanked the police officer as he sighed.

“Why’re you looking down asshole? Now I gotta look after your ass. If anything, I’m the victim here” Katsuki shouted.

“I know, I’m sorry Kacchan. I shouldn’t have gotten hit.” He lowered his head as Katsuki looked at him closely, feeling a pang in his chest. He hated when Izuku was like this, hated how he cared more about others and being a hero than looking after himself.

“It’s fine nerd. Don’t fuckin’ worry ‘bout it.” Katsuki grunted and Izuku softly looked over at him, making his breath annoyingly hitch. His face was beautiful and freckled as his lips split into a shy smile at Katsuki’s sudden niceness and he pushed overgrown curls behind his ears.

Izuku’s height had also grown since high school, rivaling Katsuki’s and almost winning. His shoulders were broader from his years of training and his baby fat dissolved into a sharp jawline. His eyes, however, were just as gentle, and his kind smile made Katsuki’s heart swell every time he received it. If Katsuki was alone, this would be one of those moments where he’d punch himself to make his feelings die down.

They both made their way to Izuku’s apartment on foot as they talked about fighting strategies to implement for next time. With each block, Izuku’s breathing got a little heavier, but Izuku laughed it off. Katsuki knew Izuku, he knew that he wouldn’t let Katsuki bring him to get medical attention until the very moment he actually needed it, so all he could do for now was wait.

When they entered the apartment building and got on the elevator, Izuku turned to Katsuki.

“Kacchan, I think when I get home, I’ll take a nap. You can head out to continue patrol.”

Katsuki looked at him minutely. Izuku’s face was flushed and looked a little sweaty but other than that he didn’t seem to have any specific feelings of sadness or anger.

“We’ll see asshole.” He spoke. Maybe he just got hit by an emotion that made him tired or something. He’ll just have to watch and see for a bit to see if anything gets worse, then he can throw him over his shoulder and force him to go see a doctor.

They entered the apartment and Izuku took off his shoes and stumbled a bit.

“Woah, you good?” Katsuki asked. Izuku turned his head, his face was redder at this point, and his eyes looked a little shaky.

“Y-yeah! Oops.” He replied looking away and heading to his bedroom as Katsuki followed, his concern growing steadily.

Izuku sat down on his bed with an exhale and his head hung low as he gripped the bedsheets. Katsuki sat beside him and couldn’t help but notice his heart speed up a little. It was just the two of them in the dark silent room and Izuku looked so flushed and vulnerable. He immediately cursed himself for his mind even going there.

“How do you feel? Sad? Tired?” Katsuki asked leaning forward trying to see his face.

“I feel… hot.” Izuku replied.

“Alright nerd,” Katsuki sighed “Change outta your suit and take a fuckin’ nap. I’ll go get you some water.” He said, getting up to go to the kitchen when he felt Izuku suddenly grab his hand. His gloved palm was warm and velvety and annoyingly made his chest tense again because shit Izuku was holding his hand.

“Wait, Kacchan... stay with me please?” Izuku said asked, looking up at Katsuki with a racy look in his eyes and Katsuki jolted when he then heard a fucking whimper leave Izuku’s lips.

“Why, what’s wrong?” he asked impassively, sitting back down. Despite what was going on in Katsuki’s head, he’d been in love with this loser for so long that ignoring his feelings became second nature to him.

He sees Izuku blush “You being close to me… feels really good right now.”

Katsuki’s mind goes silent for a moment.

What.

Izuku kept breathing hard, the redness patchy underneath his scattered freckles made them stand out even more. He finally looked up, catching Katsuki’s distressed eyes with his own glazed-over ones.

“Kacchan…” He groaned, suddenly grabbing Katsuki’s elbow and pulling him close. His face was so so close to Katsuki’s and in his ear, Izuku mumbled “Please. I need you near me.”

A deep blush flooded Katsuki’s face as his heart raced. What the fuck was going on.

Katsuki instantly stood up, Izuku faltered back from the movement,

“We’re going to the hospital.” He spit out despite the screaming in his head and being half-hard in his pants. “Get up. You’re not well.” Katsuki made his way to the door, hearing the bed creak as Izuku got up to follow him. Before he opened the door, he felt a hand grab his arm and he was turned around as he was pulled, facing Izuku again.

Izuku looked at him, looking like he was struggling to get his words out.

“Kacchan… fuck. I feel-“ His face had a pink flush, and his green eyes suddenly animalistic, darting around Katsuki’s face. His head then dropped down on Katsuki’s shoulder, groaning a bit.

Katsuki lowered his eyebrows when the groan sounded a little like it was from pain. He put his hands on Izuku’s shoulders to get him to look at him. “Izuku?”

Izuku then grabbed Katsuki’s hips suddenly, Katsuki cursed and stumbled a step back from the motion and hit the wall as Izuku gripped his hips tightly as if to hold himself steady.

“Fuck… Kacchan hahh.” Izuku dug his head further into his neck and whined into his ear.

What.

What the fuck.

Katsuki’s breathing wavered, feeling a deeper blush erupt on his face as his mind spun frantically. Woah. What the hell was happening? The nerd has never laid his hands on him like this before, never been this close to him at all. This was way too fucking crazy.

“Don’t leave me. I need you.” He murmured as he nestled into the crook of his neck.

Katsuki widened his eyes. “Wha-” he started, interrupted by a gasp he let out when he felt one of Izuku’s hands slide down slowly from his hip, hugging underneath one thigh.

Izuku’s hands were stupidly big and warm, the heat protruding through the fabric of Katsuki’s hero suit. Katsuki feebly pushed Izuku’s shoulders to get him away before quickly gripping them tight to hold steady as Izuku strongly lifted Katsuki’s thigh, pulling it up and gently to the side to create a perfect angle for him to lodge between.

Holy mother fucking shit. What was happening?

Izuku looked so good like this. his eyes were lidded as he looked at Katsuki like a piece of meat and held him so firmly. Jesus fucking christ. It made Katsuki want to just shut up and buck his hips forward immediately. “I-Izuku. What the fuck do you think you’re doing.” Katsuki uttered throatily despite the euphoria he felt flooding into his brain. He desperately gripped his shoulders to keep balance as he watched Izuku with a bewildered look.

“Whaddaya think I’m doing Kacchan?” Izuku mumbled, almost batting his eyes. He then turned to pay attention to Katsuki’s neck again. His lips traced his neck lightly, whining and wedging his nose closer into the crook above his shoulder, breathing hotly. “Kacchan… shit,” Izuku muttered under his breath, inciting a flinch from Katsuki. “Need you bad.” Katsuki’s brain short-circuited and shut down completely when Izuku lightly ground his hips into the curve between Katsuki’s legs, his hardness against his own made his entire body spark up.

Oh god. Sweet mother of fuck. His mind rushed with emotion and desire like it was drowning in a volcano of it. “W-what the fuck.” Katsuki managed to croak, brightly red. Under his haze, he knew that this was the quirk at work, but oh lord, when those words left his perfect lips and Katsuki felt Izuku's hard dick through his pants, his knees went weak.

Izuku ignored him, continuing to grind forward with a whine in his throat as Katsuki let out a strained cry. Izuku then lifted free hand and ripped off a glove with his teeth, revealing his naked hand littered with scars. One hand remained on his thigh as the bare one roughly tugged Katsuki’s tank top out from his belt and reached inside, his warm, rough hand immediately sliding up against the skin of his torso. Katsuki curled into himself, letting out a strangled cry as Izuku’s fingers found a nipple and fucking moaned into Katsuki’s neck.

Oh god oh god. Katsuki was never going to recover from this. He froze, his face and body flooded with even more red. He couldn’t speak, could barely even breathe. He was only able to helplessly stare at the man he spent years dreaming of holding hands with, now before him acting so… so….

“Always wanted to do this. To just push you against the fucking wall and just-“ Izuku’s entire body shuddered, seeming unable to finish his sentence. His eyes closed slightly during the sensation and with a small sex-dumb smile spread across his face, Izuku was completely gone.

Katsuki’s knees buckled. He couldn’t help it, but Izuku caught him, holding on to him as he sagged. The small rational part of his incoherent brain knew Izuku was under some shitty quirk, knew he should blast the fucker and hand his ass over to the medic, but he couldn’t move, could only just groan and pant uncontrollably. Izuku was just behaving so… oh god. He’d watched Izuku his whole fucking life but never had seen him acting so blatantly lustful like this.

“You there Ka-chan”?” He breathed against his neck.

“Izu… ku… what’re you-“ he only just made out before gasping when he felt Izuku grind his crotch against him again. “You- fuck.. you n-need to..”

“Mm I need you.” Izuku interrupted, grinding into him roughly once more with a groan. “I need your body. Fuck… this body.” Izuku breathed, sweeping a hungry look across Katsuki’s torso before leaning back in, his teeth scraping against his neck. “Kacchan, need your cock in my mouth, need to taste you.” Izuku pleaded. Katsuki’s eyes widened at the sentence, no time to react before Izuku dragged his lips to meet his, and Katsuki’s earth shattered. Izuku slotted his lips against his, kissing him hard and wetly, moaning into the kiss as he deepened it,

If Katsuki didn’t fall before, he definitely did now. Choking up as heat pooled in his face and body, he slid down the wall and whined as Izuku chased his lips. This was too much. Way too fucking much. His whole body felt like exploding from heat. Katsuki could handle villains ten times his size, could handle blowing up towering buildings and mountains, but this… not this. Not with Izuku.

“Aw baby” Izuku cooed as he only just caught Katsuki before he slid all the way down. Katsuki’s head felt dazed, and his body felt hot. He didn’t know how, but he found himself sitting down on the bed. Izuku had him caged in his arms and was all over him. Katsuki’s eyes were hazily closed, and his lips were open helplessly against Izuku’s as he continued to moan through open-mouthed kisses. Each moan that Izuku let out brought a wave of warmth between his legs and his tongue met Katsuki’s excitably and forced out embarrassing whimpers. His mind was completely absent, he couldn’t even think about the quirk if he tried. He could only think about the large perfect mass above him, flicking his tongue in his mouth, causing him to gasp.

Izuku then disconnected their lips with a fwop and Katsuki accidentally let out a whine he wanted to kick himself for. He looked up and saw Izuku catching his breath and watching him, minutely peering down then back up before shuddering.

“Fuck, Kacchan you look so… vulgar.” he said lowly with a chuckle. Katsuki’s breath caught in his throat, and he blinked down at himself for a moment. He knew his face was bright red and felt strands of his hair stick to his forehead from the slight sheen of sweat. His lips felt swelled, and his top was even rolled up slightly from the man’s previous groping, revealing a cusp of flushed abs. Before he had the chance to catch his breath, Izuku brought his lips to Katsuki’s neck, licking a spot once before sucking hard.

Katsuki brought his hand to cover his mouth. “I-Izu-“ he started before he felt Izuku bite, letting out a strangled whine.

“Fuck” He heard Izuku say against his neck, “You have no idea how much you drive me crazy.”

Katsuki’s body went into flames, any sort of remaining thought or reasoning being scorched away. He saw Izuku pull off his other glove before he kneeled down and went to undo Katsuki’s pants.

Feeling like he couldn’t catch his breath no matter how much he tried, he heaved as the man worked on his pants below him. Izuku finally tugged Katsuki’s pants down and pulled out his clothed dick. Izuku then fucking buried his face into his crotch and moaned. Katsuki watched in horror, mouth gaping open and close, letting out guttural whines as Izuku mouthed his underwear wetly. Fuck. Oh Fuck. Katsuki was so fucking hard for him.

Izuku then pulled Katsuki's underwear out of the way and his dick flung out, hot and throbbing meeting the cool air.

“I-Izuku..” Katsuki finally sputtered out after a shock from the sensation. “I can’t… I can’t I can’t I can’t.”

“Can’t what Kacchan?” Izuku looked at him intently, his face almost looked innocent as he gripped the base of his cock. God, Katsuki loved that face so much.

Katsuki squeezed his eyes tight. His arms rested on Izuku’s shoulders, and he tightened his grip, his fingernails almost digging in as he tried to regain his composure. “I-it’s too much…” He almost cried, pathetically as fuck “I can’t handle it.” He opened his eyes again and looked down.

Izuku looked feral.

“You can’t handle me touching you? You like it that much?” Izuku muttered. A dark, crazed look in his eyes made something electric shoot up Katsuki’s spine. “I’ll take care of you baby… I’ll do you slowly. Just relax.” Katsuki’s dick twitched in Izuku’s hand at that and they both saw. Izuku grinned and finally wrapped one hand around the length and stroked it up and down, twisting his grip around the head.

Katsuki tipped his head back and moaned. He wanted to die. He found himself cursing whatever god that allowed this happen and thanking them as well for being able to see Izuku like this- to have him touch him like this. Half of him was waiting for himself to wake up and for this whole thing to just be another Izuku dream. The other half lost its mind.

He held onto Izuku for dear life, gasping and moaning as Izuku continued to pump his hand up and down, slivers of pre-cum dribbled out the slit as he rubbed it across the length. Katsuki was so wet, it was almost embarrassing and impossible to ignore. Pleasure sizzled inside him with every stroke as he felt heat build in his abdomen and his dick dripped onto Izuku’s fist.

Suddenly he felt something heart-stopping glide down the length. He opened his eyes with a gasp and saw Izuku liberally swipe his tongue across his length. He licked it clean from the lewd mess before taking his dick fully in his mouth, catching Katsuki’s eyes pointedly as if he wanted Katsuki to watch him as he pushed his lips further. Katsuki felt himself dissolve in the feeling, letting it overtake him completely. He peered at Izuku with an incredulous look, his tongue feeling heavy in his mouth as he panted.

Izuku was sucking his dick. Oh fuck. Holy shit.

He felt Izuku moan around him, making his hips jut up involuntarily as he whimpered and twitched wetly into the warmth while Izuku held his hips steady.

“Izu- Izuku… Izuku..” Katsuki gasped his name as a warning as he felt fire coiling in his gut. With a few more bobs of Izuku’s head, his insides rushed with warmth and his vision went white as he cried out, ecstasy splintering through his body as he spilled into Izuku’s mouth. Katsuki gripped Izuku’s shoulders as he curled over as Izuku continued to suck, riding the wave for a few moments until his lips separated from the tip as Katsuki pushed him away in dismay, swallowing the first half and the other half spilling onto Izuku’s lips and Katsuki’s torso.

Izuku then dropped his softened cock from his hands, wiping his lips as he watched Katsuki breathe heavily and come down from his orgasm. Katsuki felt his senses return back one by one, allowing room for some sort of rational thought.

He jerked his head towards a noise and glanced at Izuku who was unzipping his top and pulling it over his head to uncover his sculpted and bare arms, chest, and midriff, all adorned with those damned freckles.

There goes that so-called fucking rational thought.

Katsuki’s mind rushed with various feelings. He recollected the actions he took that day to bring him to this fucked up situation, where he sat with his dick out before the love of his life and was forced to reject him. Katsuki wanted him. God, he wanted him so bad, but with Izuku under whatever-the-fuck-this-was, despite his mind feeling like it was underwater, it was up to him to be the only sensible person here.

“Izuku, y-you’re under a damn quirk right now. I don’t think-“ He started shakily. Izuku then grabbed Katsuki’s wrist and brought it to cup his fucking bulge, letting out a slight moan at the sensation.

“Look how hard I am.” Izuku whined. “Wanna come too… so bad. Please Kacchan.” Katsuki’s palm continued to cup his dick in shock as Izuku leaned in again and when he met his lips with Katsuki’s in a messy open-mouthed kiss, his mind went blank again. Katsuki yelped as he felt his back hit the bed and felt Izuku shift them both into a more comfortable position.

“Wanna fuck you Kacchan” He slurred, he didn’t even sound like himself anymore with the amount of lust dripping in his words. Katsuki simply shuddered, wordless as Izuku leaned back and pulled off Katsuki’s pants and underwear that clung around his thighs. His dick was undeniably hard again but Izuku paid no attention to it. Instead, he pushed Katsuki’s tight tank top further up till his collarbones, and Katsuki blushed embarrassingly when he suddenly felt very fucking naked. He then saw something spark in Izuku’s eyes.

Izuku steadily slid both of his hands down to his stomach, wrapping both large palms around Katsuki's waist slowly, finger by finger, the tips finally just slightly touched. Izuku then tilted his head back and let out a long, low moan.

A fucking moan.

“Always wondered if my fingers would touch if I wrapped them around your waist.” He slurred dreamily.

And at that, Katsuki’s last thread of restraint snapped. His head flooded with desire as he clung to Izuku, sputtering and whimpering, letting the man do whatever he pleased. Izuku tightened his grip around his waist and brought him up closer, making Katsuki fucking arch his back as Izuku dove in to give his undivided attention to his nipple, lapping with wild abandon.

Izuku scraped his teeth against Katsuki’s chest, biting and leaving blooming red marks as he went lower and lower as Katsuki let out jagged cries. “Your perfect body. Fuck your chest… God Kacchan. You’re my wet dream come to life.” Izuku murmured against his skin. Hot pleasure shot up through his body and Katsuki felt like crying. Hearing all this shit come out of Izuku’s mouth after wanting him so bad for years, he felt like he was going crazy, felt like he actually lost his mind somewhere in the process.

“Fuck, don’t say shit like that to m-me.” He croaked, only then hearing how wrecked his voice really was.

“Shhh, Kacchan I got you.” Izuku replied. He disappeared from his vision for a moment, and through Katsuki’s fucked out brain, he thought for a second that maybe he had just imagined this whole thing and when Izuku came back, hovering over him he dizzily acknowledged he needed to get himself together for his own self-respect.

Katsuki bent his neck to see a bottle of lube from fuck knows where in Izuku’s hands as he squirted it on his fingers.

“I’m gonna take good care of you Kacchan…” Izuku mumbled, looking like he was in a haze, “Just sit back and look pretty for me.”

Katsuki felt tears in his eyes as he watched Izuku coat his fingers with the liquid, realizing at that moment how desperate he suddenly was for Izuku to fuck him. Oh god, Izuku was going to fuck him. Holy shit. What the fuck.

Izuku leaned over him, almost at eye level as Katsuki squeezed his eyes tightly in anticipation. He finally felt a soaked finger on the rim of the muscle. Izuku rubbed his index finger at the opening and pressed, letting the finger enter until the first knuckle. Katsuki exhaled roughly when he felt a hand on the back of his neck. Izuku leaned down and kissed Katsuki gently, his tongue grazing the roof of his mouth in a way that made Katsuki’s heart clench and remind him how fucking unbelievable this situation even was.

“You okay so far?” Izuku whispered against his lips. Katsuki looked up at him.

Izuku’s demeanor shifted a bit, but he still saw that wild look in his eyes as he looked down at Katsuki hungrily. Katsuki squinted his eyes tightly and nodded.

“Yeah,” He whispered back. “…keep going.” He saw Izuku’s eyes widen a bit from the verbal permission.

Izuku pushed the rest of his finger into the tight opening and Katsuki groaned, feeling himself pulsate and twitch around it. Izuku then pulled his finger out and thrusted it back in roughly and Katsuki let out a shaky cry.

“…Sorry” Izuku murmured quietly before slowing down his pace. Katsuki quivered and tried to relax his body, letting the feeling of being full wash over him, rasping gasps as Izuku continued a slow, steady rhythm. He blinked up at Izuku’s face when he noticed he was panting pretty heavily alongside him. He watched how his pupils were blown wide, almost overtaking the green as they zeroed in on Katsuki’s lower half, making Katsuki feel even more fucking exposed. Shit. Izuku looked like he was desperately trying to control himself but was failing as desire took over and god did that bring another wave of heat inside him.

With a couple more pumps, Izuku added another finger. With every deep thrust Katsuki let out wet gasps and arched his back more. Izuku thrusted once again, this time curling his fingers a little more and touched something. Katsuki felt an abrupt spark of pleasure crackle throughout his body, and he let out a loud stuttering moan that sounded a bit like Izuku’s name.

Izuku didn’t spend a moment of hesitation after that, sinking and curling his fingers at the same spot again. Over and over, fucking him with his fingers with reckless abandon, turning Katsuki into a trembling mess. Izuku added a third finger, thrusting into him properly as Katsuki let out incoherent whines.

“You’re so good Kacchan... So fucking hot.” Izuku murmured just loud enough for Katsuki to hear him. “So perfect.” He continued. Katsuki’s eyes widened with every compliment Izuku uttered and had globs of tears forming as he began to thrust his hips forward to the rhythm.

Izuku abruptly pulled his fingers out and Katsuki bit his lips to prevent himself from letting out a whimper from the lack of fullness.

Izuku finally undid his hero belt and slid his pants and underwear down to his thighs. His perfect hard cock flung out in an instant as Katsuki immediately made eye contact with it. It was flushed and swollen and slightly dripping.

“…fuck.. fuck.. fuck...” Katsuki swore under his breath.

It was big. it was Izuku’s.

Izuku grabbed the lube again and opened the clasp. He spurted out the liquid on his dick, stroking it lightly as he spread it around. “Haahh” he moaned as he pressed a finger against a vein. Katsuki's breath hitched as Izuku dragged his hips closer, his hands under Katsuki’s thighs to lift them onto his own thighs and lined his dick to the twitching hole, pressing and rubbing against the opening gently and... and a little too fucking slowly.

“Izuku,” Katsuki whispered with a shiver in his voice. He looked up at him, his hands uselessly laid on either side of his head and his legs straddled Izuku. “…Just do it.”

Izuku hesitated for a moment, then cocked his head before bringing it close to Katsuki’s chest and licked his nipple clean from the few drops of cum that spilled on it previously. He opened his mouth to show him before swallowing it. Katsuki’s eyes went wide and more patchy redness flooded into his face as he sputtered out watching him lick his lips.

“Do what?” Izuku asked wildly.

“Fuck. S-Shut up” Katsuki managed to make out despite heat radiating from every cell in his body. Izuku leaned in and his lips enveloped around Katsuki's again, his mouth feeling like velvet and silk against his. “C’mon, Kacchan. Say it for me?” Izuku requested frantically against his lips.

Katsuki tried chasing Izuku’s lips as Izuku backed away, realization or embarrassment hitting him quickly as he squeezed his eyes tight. Feeling his teeth grind, he debated whether he had any dignity left to refuse to play along or even stop himself from wanting to. Izuku brought his dripping length back against his rim and rubbed it lazily, the sensation filling Katsuki with sudden want as he groaned and tightly gripped the pillow beneath his head.

“Izuku... ohmygod... just do it. J-Just put it in. Please!"

Izuku stilled at the last word, letting out a sharp exhale and Katsuki could almost see his eyes darken, mysterious carnal overtaking his expression as his lips parted.

The sudden lack of movement was almost suffocating to Katsuki. "Please." Katsuki continued, just on the verge of something delirious overtaking him and spurred on by Izuku’s heavy eyes on him. "Zuku please! Just- just fuck me. Shit. F-Fuck me plea- nghh-“ without hesitation, Izuku pushed in. The head entered first followed by the rest of the length. Katsuki felt the burn of the stretch and his mind broke down into debris. He let out a delayed long moan and sloppily whimpered against the pillow. He slightly opened his eyes, his eyelashes feeling heavy as he looked up at the sight before him.

His hips were shuddering against Izuku’s cock. His torso curled into himself, sweaty and still covered with cum, and his hard dick bounced with every twitch of his hips. Katsuki could see where Izuku’s cock connected to him. Katsuki hazily raised his gaze to look at Izuku’s face and immediately let out a loud, heady whimper.

Izuku looked fucking greedy and wild as his dark and heavy-lidded eyes devoured Katsuki. Izuku's lips were parted and red as his gaze swept across Katsuki’s exposed and shaking body, looking his fill.

“Fuck” Izuku murmured breathily, almost mesmerized. “Just look at you.”

And at that, Katsuki felt his self-control crumble to dust.

Izuku angled his cock and thrusted back into him. this time Katsuki felt an abrupt electric euphoria spike up his nervous system and let out a low moan. Katsuki’s face was a mess of desperate lust and every heaving breath he would give out went through his body and tightened which made Izuku rasp out. Every inch of his body screamed with heat as his head flailed to the side and both hands gripped onto the pillow like a life-line.

“Kacchan… You feel so good, so perfect.” Izuku continued rambling as he continued to rock his hips roughly into him, forming a steady, maddening pace. Katsuki was practically sobbing. He felt like he was going insane, his head was consumed with a haze of lust and delirious pleasure as Izuku's cock grazed his prostate oh-so-wonderfully.

His eyes were filled to the brim when Izuku leaned forward and brought his lips for a careless kiss. Katsuki gave in, shaking and licking as he kissed back roughly before weakly dropping his head against the bed again. Katsuki was still dazed from the kiss when he felt Izuku’s grasp switch to underneath his thighs, choking up when his hot grip pushed Katsuki's legs further up, his body folding in itself as Izuku started to fuck into him properly. Each merciless thrust had all the air leave Katsuki’s lungs as his body sparked with pleasure. Izuku threw his head back as he fervently pounded into him, uncaring of Katsuki’s cries as he seemingly looked like he was just chasing his own pleasure as Katsuki continued to moan pathetically and take and take and take.

“So good. You’re so fuckin’ good Kacchan. You’re amazing. Shit. I like it so much baby…” Izuku rambled. “Do you like it? Tell me how much you like it.”

Katsuki could barely answer, his breath knocked out of him every time Izuku rocked his hips. “I-Izu- kuu I... I like-” he spluttered out, that being all he can moan out.

Izuku tightened his grip on Katsuki’s thighs. Turning his head, Izuku brought his teeth to his leg and bit down. “I like it!” Katsuki shakily cried out at the burst of pain and heard Izuku moan out before he began to thrust faster and deeper.

“God, listen to you,” Izuku muttered, making something spark in Katsuki’s gut and his cock weeped.

“I-i’m g-gonna.. I’m gonna…” He whined out as Izuku interrupted him by listlessly thrusting against his body.

”Yeah?” Izuku breathed out roughly, “You’re gonna cum for me?”

Katsuki felt the desperate need of his gut tightening, the sensations pulsating through his body. He shakily lifted a palm to bring between his legs when Izuku clicked his tongue and grabbed and pinned his hand back on the bed.

“Zuku.” Katsuki sobbed out. “Please.”

”So good Kacchan.” Izuku muttered. His eyes looked glazed over as he continued to fuck Katsuki so deeply. “Such a good boy. Let me.” Izuku breathed before he brought his other hand down Katsuki’s torso to where his cock throbbed.

He wrapped his hand around Katsuki’s dick and gave the length a rough stroke, his entire body jolting from roaring pleasure. Katsuki’s head flung back and his back arched as he gasped and came hard, a fiery bliss filling his veins then bursting as cum shot up his torso once again. He pressed his cheek harshly against the sheets below him and gave out feeble moans as he let out the last drop.

"Fuck.” He heard Izuku groan as he felt Izuku suddenly adjust his body forward, straddling his body tightly over Katsuki’s torso, their naked skin hot against each other as Izuku continued to thrust. His mouth bit down on Katsuki’s shoulder making him yelp out as his body rocked helplessly alongst the movement.

Katsuki couldn’t help the whines spilling out of his lips as a sharp sensitivity started to build up from within.

”Izu-“ He tried calling, his voice croaky and almost unrecognizable.

”Shhh baby.” He heard Izuku respond and heat sparked in his stomach as he felt himself bite his lip. 

Izuku finally let out a low moan and Katsuki felt him spill into him, filling his hole up and shuddering as he did so. Izuku breathed deeply for a few moments, his arms shaking before he let his body go and dropped his weight heavily onto Katsuki and both men laid there, heaving and panting against each other.

The air was heavy and the rushing adrenaline within them burned away gradually. The sweat on their skin started to cool as the sound of them both trying to catch their breath slowed down. Several moments later, a silent awkwardness settled in the air.

Katsuki’s mind was oddly silent.

He just… had sex with Izuku. He just got fucked by him.

No, no he just got hard-core railed by Izuku.

Katsuki held his breath to prevent himself from swallowing loudly or to keep his heart from beating too fast against the other’s chest.

He could feel Izuku’s warm body pressed against his, their legs tangled with each other, and Izuku’s dick still inside him. Izuku came in him, and oh god he could still fucking feel it. Heat rose up his face again as Izuku finally slowly lifted his head from his shoulder. Katsuki craned his head to catch the expression on his face, however, Izuku held his head down.

“Izu-“ Katsuki started before Izuku leaned back, and pulled his dick out of him. Katsuki sharply inhaled as it slipped out from his hole filthily with a trail of dribbling cum in its wake.

“Oh my god…” Izuku finally muttered, his face glowing red beneath his bangs and Katsuki could also feel himself grow more red. Now that Izuku didn’t have the quirk to hide behind, he was strangely mellow.

Wait… the quirk?

Katsuki’s eyebrows lowered because fuck. The quirk.

The sudden remembrance that Izuku was under a quirk the whole time brought a pit to Katsuki’s stomach because shit Izuku was under an influence this whole fucking time.

Fuck! Katsuki should’ve held back, he tried but he couldn’t because of... because of his stupid fucking feelings. Katsuki felt his mouth go dry. Izuku didn’t know what the fuck was going on. He was just acting like that because of the quirk, which probably made him try to fuck the closest person to him, which was Katsuki, and Katsuki was more than physically able to knock him out and take him to a medic.

He felt a sudden nausea course through him as he realized that he was going to have to explain to Izuku why he didn’t stop him.

“Izuku I’m- ”

“That- I didn’t- ”

They both spoke at the same time and looked at each other, embarrassment evident in both of their faces.

“Izuku, are you okay?” Katsuki finally made out.

He saw shock run through Izuku’s face, then distraught, and then he saw tears well up in his eyes as Izuku sat down on his thighs and looked down and tried to desperately blink them away. “Am- am I okay?” He choked out a sound that almost sounded like a cry.

Katsuki’s heart felt tight as he stared at him unsure what he meant by that. He sat up, bringing his legs together in an attempt to cover his lower half as Izuku looked around at the ground, almost looking for solace.

Fuck he messed up. Izuku was crying. He regretted the whole fucking thing and Katsuki felt like he was going to throw up. Why didn’t he stop him? Of fucking course he didn’t really want to do all of that with Katsuki, the quirk made him and Katsuki took advantage of it. Fuck. Shit.

“Izuku, you were under a fucking quirk.” Katsuki finally muttered, “I should’ve- fuck I should’ve stopped you. I’m- I’m sor-“

“What?” Izuku croaked, interrupting him. A few tears had escaped down his cheeks as more threatened to spill and Katsuki wanted to die.

“Why’re you sorry? I-“ Izuku continued, bringing his hands up to grip his hair with a panicked expression. Katsuki looked at his eyes and felt a pit in his stomach when he saw pain in them.

“Kacchan, I- I just f-forced myself on you.” Izuku finally sobbed out.

Katsuki paused.

He was… confused. What the fuck was this nerd going on about?

Force himself on Katsuki? Did this fucking idiot really think that he just took advantage of him? He knew Izuku was dense but damn. Didn’t he just witness first-hand Katsuki begging him to fuck him? Didn’t he just see him literally clinging to him and moaning his name?

Didn’t the idiot see the look of love in his eyes?

“Izuku are you stupid or what?” He finally blurted, irritation burning inside of him.

“Huh?” Izuku’s eyes darted back at him, shaky but focused.

Katsuki huffed for a moment before trying to figure out how he should word out his thoughts.

“I’m not fuckin’ weak, okay? If it was Kirishima or some other loser that was under the quirk, I wouldn’t have hesitated to send them flying. But I didn’t… couldn’t… because it was you.”

Izuku looked at him, his eyes wide and teary.

“That quirk probably made you jump the first person you saw, and I should’ve stopped you. I know that.” Katsuki looked down, burning regret coursing through him. “You didn’t force yourself on me- if anything I couldn’t stop myself from indulging. It was my fucking fault.”

“Kacchan, what are you saying…”

Katsuki resisted the urge to roll his eyes. He had to spell out everything for this moron.

“I-I wanted it, okay? I’ve wanted it for a while. So, stop crying, damn it.”

There was a moment of loud silence. Katsuki felt Izuku’s eyes on him but kept his head turned away, avoiding those stupid fucking eyes that made him fall for Izuku in the first place. It was as though the frequency in the air was different and the space between them vibrated as Katsuki waited for what Izuku would say.

He then felt Izuku’s hand on his shoulder as he gently coaxed Katsuki to look at him.

“Y-you’re wrong about the quirk” Izuku started, tight-lipped and misty-eyed, in almost a whisper. “It didn’t make me do that. It- it was a lust quirk, but it was also a… disinhibitor.”

Izuku looked down bashfully and Katsuki just watched him, his mouth feeling dry.

“When I was under it, I just felt like acting more on my impulses. Mostly made me forget the consequences for anything.” Izuku explained, “And it also made me really h-horny, maybe something to do with the chemical balance, or maybe it just enhanced my pre-existing feelings? Or-”

“Are you fucking rambling right now” Katsuki shouted despite his heart going a million miles a second. Pre-existing feelings?

Izuku cracked a dry smile. “Sorry. What I mean is- If I was with Kirishima or one of the others, I would've stopped myself too. But I couldn’t… because it was you. So, you shouldn’t blame yourself either, Kacchan.”

Holy shit.

With his head turned down, Izuku shyly looked up at him with a timid smile on his lips, looking at Katsuki like he was his whole fucking world.

Oh fuck.

Izuku lowered his gaze hesitantly and his body flushed deeper. Katsuki couldn’t breathe.

“I’ve wanted you for a while too, Kacchan.” Izuku finally whispered, doe-eyed. “I- I like you.”

Oh my god.

Katsuki felt like he was on fire. That was just… a confession. Izuku just said he wanted him. His Izuku.

“I- I-“ Katsuki stammered as he backed away, looking like a threatened animal as a deep flush flooded in his face. He felt like everything he knew about them was tossed up in the air. He couldn’t concentrate on anything, especially not when Izuku took his shaky hand and brought it up to his fucking lips and pressed gentle kisses on it. Katsuki could feel his soft smile against his knuckles and his heart flooded with emotion.

Katsuki noticed Izuku's gaze zero in on him again and the nerd's face glowed a sudden bright red as he went tight-lipped. Izuku finally lowered his hand and got up from the bed, walking towards the bathroom.

“Y-y-you damn nerd!” Katsuki shouted at him, barely hearing himself over the rush of blood in his ears as Izuku disappeared around the corner.

I like you. I like you. I like you.

The air filling his lungs feels too tight as he tries to piece together exactly what the fuck was going on. Izuku said he liked him. He said he’s wanted him for a while.

Izuku said he feels the same way as him.

Katsuki wanted to rip his hair out. He settled for gripping his thighs tightly as he sat on the bed, staring at the corner where Izuku disappeared. His gaze turned a little to the right and he flinched when he noticed his reflection from the mirror above Izuku’s dresser and his lips parted in shock.

He looked absolutely fucking debauched. His hair was a mess, sticking out in all directions. Hickeys were spread across his neck and chest and there were fucking bitemarks on his nipples. His lips were kissed red and swollen, and his body and face were flushed. Most obscene however was the filthy stripes of cum slathered on his torso. His shocked expression of wide eyes and parted lips weren’t doing much to lessen the pornographic image before him.

No wonder he ran off to the bathroom. Fucking damn it. He's been in love with Izuku for fuck knows how long and when the nerd finally decided to confess, Katsuki looked like a damn porn star.

While Katsuki debated on running into traffic, Izuku returned, this time wearing a new pair of boxers and a wet cloth in his hand.

Though Katsuki had so many thoughts going through his head, so many things to say, he remained wordless as Izuku sat down on the edge of the bed and paused for a second before he started to wipe Katsuki’s arms. Then his face, neck, and the rest of his body with gentle care that made Katsuki’s heart feel lodged in his throat. A few more silent moments passed as Izuku hummed quietly and Katsuki watched his face with an annoyed expression.

This idiot was driving him crazy.

“Izuku.” He finally muttered as Izuku’s attention was directed towards wiping a hickey on his collarbone, the cool wetness soothing the bruise.

“Yes, Kacchan?” he returned in acknowledgment as he continued to wipe, but Katsuki knew from his shaky hands he was nervous, he knew everything about Izuku.

There was a pause and Katsuki forced himself to continue looking at Izuku, to not look away and avoid him like he usually did.

“I- I like you more.”

Izuku’s hand stilled and his breath hitched. He looked up to gaze straight at Katsuki, wide-eyed and beautiful. Izuku’s mouth then twisted upwards, and he let out a fucking snort before a bout of laughter spilled out of his lips.

“Of course, you’re making this into a competition.” Izuku giggled.

Katsuki’s chest feels light, like he’s on air.

“You fuckin’ bet I am.” He grumbled over Izuku, but the stupid grin on his mouth revealed his obvious endearment.

“That’s so Kacchan of you,” Izuku replied, bringing his attention back to wiping his skin clean. “Hmm, then I’ve liked you longer.” He said as a rebuttal.

“Shut up, you fuckin’ twerp! I win in that category too.” Katsuki shouted as Izuku laughed loudly and Katsuki’s never going to get tired of that laugh.

He stuttered out profanities when he felt Izuku lean in and shyly plant a kiss on his lips, Katsuki leaned into it despite knowing its intention is to silence him as Izuku hummed dreamily.

Katsuki grabbed Izuku’s face with both hands and kissed deeper as they melted into each other. It’s chaste and unbelievable and Katsuki is never going to get tired of this either.

“How long then?” Izuku asked against his lips as they both separated for air and looked at each other, longing blazing in their eyes.

My whole damn life.

“Too long.” Katsuki replied with a grunt and Izuku leaned in to kiss him again because that’s what they do now apparently- they kiss.

He basks in the lingering warmth of his fingers touching Izuku’s face, and his lips against the sweetness of his mouth. He’s in Izuku’s arms and now that Izuku is in his, Katsuki’s never going to let go.