Archive of Our Own

The first time Izuku heard “Kacchan Bakugo,” he was laid up in a hospital bed with half the class crowded into the room around him. Recovery Girl had finally allowed his friends to visit after what felt like endless days of drifting in and out of sleep, and although his body still ached with every movement, being surrounded by familiar voices made the sterile hospital room feel a little less suffocating.
There was still so much he hadn’t seen from the war.Bits and pieces had been explained to him by All Might, by the nurses, and of course by his worried mother who was trying to soften the harsher details, but the entire conflict had been chaos. Some of it had been televised, some witnessed firsthand by civilians, and some stories had already begun to blur together into rumors before Izuku had even regained consciousness. Every conversation seemed to uncover something new he’d missed while fighting for his life.
Most of the class had fallen into an easy rhythm of talking over each other, recounting moments from the battlefield, and showing off newly developed scars while trying not to dwell on the worst parts. Kirishima was animatedly retelling something Mina kept interrupting to correct, while Iida attempted, and failed, to keep everyone from getting too loud in the hospital wing.
Then Denki laughed and casually mocked, “Seriously though, Kacchan Bakugo was terrifying out there.”
Izuku’s attention snapped to Denki instantly.
“Kacchan Bakugo?” Izuku repeated, tilting his head.
The nickname plus Katsuki’s last name left Denki’s mouth so naturally that Izuku thought he’d misheard him. His eyes immediately drifted toward Katsuki, who had been leaning against the far wall with his arms crossed, looking irritated just from being there.
For as long as Izuku could remember, “Kacchan” had belonged to him alone. “Bakugo” had been what everyone else called him. Never had Izuku thought of putting the two together, but he liked the sound of it. Hearing someone else say it so casually felt strangely personal, enough that Izuku couldn’t stop himself from staring.
Katsuki could feel the intrusiveness radiating from behind Izuku’s bright green eyes as the gears in his nerd brain started to turn.
“What’re you lookin’ at, nerd?” he snapped, clearly embarrassed. Izuku turned his attention to Denki.
“But wait,” Izuku said, genuinely confused now. “Why are you calling him Kacchan Bakugo?”
Denki blinked. “Uh… because he literally called himself that on TV?”
The room fell silent for half a second.
Izuku shifted his focus back on Katsuki. “What?”
Katsuki’s expression darkened instantly. “Shut the hell up, Pikachu!”
“No, seriously!” Kirishima cut in, grinning far too widely to have his arm around Katsuki, when it looked like he would pop off at any minute. “You totally did! ‘Kacchan Bakugo’ and everything!”
The second the words left his mouth, Katsuki’s entire face went as bright as Kirishima’s hair.
It was immediate. Sharp color spreading from the tips of his ears across his cheeks in a way Izuku had never seen before. Katsuki looked horrified, like he wanted to teleport out of the room. His eyes darted toward Izuku for only a split second, but that was enough. The moment their gazes met, Katsuki looked ready to explode.
“SHUT UP! ALL OF YOU!”
The outburst echoed through the hospital room loudly enough that several people jumped. Before anyone could say another word, Katsuki stormed toward the door, shoving it open hard enough that it slammed against the wall.
“Kacchan!” Izuku called automatically.
“DON’T CALL ME THAT RIGHT NOW!”
And then he was gone.
The room was silent for exactly three seconds before the others burst out laughing.
Izuku looked around helplessly. “What just happened?”
The entire class immediately started talking at once.
“You seriously haven’t seen it yet?”
“Oh my god, Midoriya, it was during the fight with All For One”
“He said it on live television!”
“He was so proud!”
“It’s already all over the internet!”
Izuku sat there completely bewildered as his classmates tried to explain through their laughter. Somewhere in the middle of the chaos, Mina pulled out her phone to find the clip while Denki and Kirishima nearly fell over reenacting Katsuki’s expression.
And despite all the confusion, despite the exhaustion still weighing down his body, Izuku felt warmth bloom in his chest as soon as he laid his eyes on the screen in front of him.
Katsuki had called himself Kacchan. Out loud. In front of the entire country. Looking badass as hell.
Somehow, that fact felt more unbelievable than anything else he’d heard about the war.

By their final year, Izuku had watched the video thousands of times since it was first broadcast, and not once had he heard “Kacchan Bakugo” escape Katsuki’s lips again. If it weren’t for the footage from his fight with AFO, it would have been easy to believe the entire thing had never happened at all. Like the country had collectively hallucinated it for a single moment before Katsuki buried it forever.
Izuku’s only proof was the video, now downloaded onto his phone.
At some point, he had memorized every second of it.
Lying in his dorm bed late at night, the soft glow of his screen illuminated his face while the rest of the room remained dark. Outside, the dorms were quiet, except for the distant hum of traffic and the occasional muffled laughter from another floor. His homework sat abandoned on his desk, untouched for nearly an hour.
His eyes stayed locked on the screen
Play.
‘I’m the final boss! Got it!!’
Pause.
Fast forward.
‘Kacchan Bakugo!’
Rewind.
Play.
Pause again.
The image froze on Katsuki mid-explosion, sparks and smoke bursting around him like fireworks against the ruined battlefield. Even through the grainy compression of the broadcast footage, Izuku could see the exact moment realization crossed Katsuki’s face after the words left his mouth.
Rewind.
Play.
‘I'm going too fast!’
Pause.
He squeezed his eyes shut as he kicked his feet, legs curling and stretching in bursts of energy he had nowhere to put. With a muffled sound of excitement he couldn’t properly express, he bit down on the hem of his shirt, tugging it between his teeth as if that could anchor him to the moment.
It didn’t really help.
If anything, it made it worse.
“Kacchan’s so amazing,” he whispered to himself.
Rewind.
Play.
‘Have you gone senile you bastard!’
Izuku smiled softly despite himself.
Rewind.
Fireworks.
Play.
‘Because my name’s Kacchan Bakugo!’
Pause.
Over and over again.
Sometimes he focused on the way Katsuki’s voice sounded when he said it, raw and frantic in the middle of battle. Other times he studied his quirk frame by frame, searching for something new each time like there was hidden meaning buried somewhere between explosions and static.
There probably wasn’t, but that didn’t stop him from taking notes in his notebook. Izuku couldn’t help it. Katsuki was so fascinating to him, and every new skill he displayed during the fight was unbelievably impressive. And yet, he had no answer for why Katsuki would call himself “Kacchan Bakugo” in the middle of a fight with AFO. It would have been the perfect chance to shout his hero name to the world, and yet he chose not to.
And now Katsuki never said it again.
Not after the war. Not around their classmates. Not during interviews. Not even accidentally.
Or at least not around Izuku.
Izuku had tried. God, he had tried.
At first, it had been subtle.
“Hey, Kacchan,” Izuku would say casually while they trained, dragging out the nickname expectantly.
Katsuki would glare at him. “What.”
“You know,” Izuku would continue carefully, “it was really cool when you called yourself Kacchan Bakugo.”
“You mocking me now?”
“But-”
“Die!”
Katsuki charged at him with explosions and that had been the end of that conversation.
Izuku hadn’t given up.
Sometimes he tried bringing it up indirectly, hoping Katsuki would slip.
“Everyone thought it was really inspiring,” he’d mention while they walked back from class.
“Tch.”
“You sounded proud of it.”
“Shut up.”
“Could you maybe say it one more time?”
“No.”
Occasionally, Izuku got bolder.
“You know, if you called yourself Kacchan again, I think I would explode with excitement!”
“Fucking nerd! I’ll help you explode!”
And yet, every single time, Katsuki refused to cave.
It almost became a game at some point. Kaminari and Mina started joining in occasionally, teasing Katsuki just to watch him combust with embarrassment while Kirishima laughed himself breathless nearby.
But Katsuki only ever reacted with yelling, threats, and increasingly creative insults.
Never the words Izuku wanted. He was afraid the more his friends teased Katsuki the more likely he would never hear “Kacchan” spoken by him ever again.
Which somehow made the original clip feel even more precious.
Izuku tapped the replay button again, his thumb moving automatically before the video could even finish.
“Because my name’s Kacchan Bakugo!”
Pause.
Izuku stared at the frozen frame with unconcealed fondness. And he hugged his phone to his chest, feeling strangely warm every time he heard it.
Because no matter how many times Katsuki denied it afterward, no matter how violently he tried to pretend it never happened, Izuku knew the truth.
For one brief moment, in the middle of the worst battle of their lives, Katsuki had claimed the name for himself. And Izuku didn’t think he would ever stop treasuring that.
Play.

“Nerd!”
The voice came sharp and sudden from the other side of the door.
Startled, Izuku fumbled his phone. The volume was still turned up, and Katsuki’s explosions from the video echoed loudly in the small dorm room, cutting through the silence like an alarm. In his panic, Izuku’s grip slipped completely, and the phone clattered straight out of his hands.
It hit the floor with a crack and slid directly towards the door.
“I’m coming in,” Katsuki announced immediately.
“No!” Izuku shouted, scrambling forward, but it was already too late.
The door swung open.
Katsuki stepped inside and immediately froze, his eyes narrowing as he took in the scene, Izuku on the floor, blankets curled around his feet, red-faced, the phone lying between them still playing the looped footage of the war. The sound of his own voice echoed faintly from the speaker before Izuku reached the phone too late.
He paused the video.
Izuku laid there frozen, mortified, heat crawling up his neck and into his ears as he avoided Katsuki’s gaze entirely.
“What the hell are you doing?” Katsuki demanded, already moving forward.
Before Izuku could react, Katsuki bent down and snatched the phone from his hands with effortless speed.
“Wait—Kacchan, don’t—!”
But Katsuki had already pressed play again.
The screen lit up.
The exact moment played back in brutal clarity: explosions, smoke, chaos… and Katsuki’s voice cutting through it all.
“My name’s Kacchan Bakugo!”
Katsuki’s thumb hit pause instantly.
Silence.
For a moment, neither of them spoke.
Then Katsuki exhaled sharply, dragging a hand down his face like he was physically trying to erase the memory from existence.
“…Fuck?” he muttered.
Izuku’s entire soul seemed to leave his body in one rush of embarrassment.
“I—I can explain,” Izuku blurted out, scrambling to his knees. “It’s just you haven’t said that again since that day, and the pain you felt, it gave you so much power, so I started thinking maybe it’s the same with pleasure, and you never talk about it and I just—”
He kept going, words tumbling out faster and more disorganized as his brain tried desperately to justify itself.
“And I don’t mean it in a weird way, I don't think, I just mean statistically speaking there might be a correlation between—”
“Shut up.”
Katsuki’s voice was flat.
Izuku immediately stopped talking.
Katsuki stared down at him for a long moment, still holding the phone, expression unreadable in a way that was somehow worse than anger.
Then he sighed.
Long. Heavy. Annoyed.
“…You’re unbelievable,” Katsuki muttered, rubbing the back of his neck. “You know that?”
Izuku nodded quickly. “Yes.”
“That wasn’t rhetorical, nerd.”
“…Yes, Kacchan.”
That earned him a sharp look, but not the usual explosive reaction. Katsuki just looked tired now. A different kind of tiredness. Like he couldn’t decide whether to throw the phone at Izuku’s head or just accept that this was his life now.
Finally, he turned the screen off and laid the phone on Izuku's desk. That’s when he saw Izuku’s notebook laying on top of his homework. On the cover was written.
Kacchan Bakugo quirk analysis
He slid it under his shirt. To read later.
“Stop analyzing me like I’m some kind of science project,” he said gruffly.
Izuku hesitated, then spoke softer this time. “I’m not trying to.”
Katsuki clicked his tongue.
“Yeah, well. You are.”
Another pause.
Then, almost quieter than everything else he’d said so far, Katsuki added, “And don’t watch that stupid video so loud next time.”
Izuku blinked.
“…So you will say it for me?”
“NO.”
“Please Kacchan, please” Izuku reached out grabbing Katsuki’s hand still on his knees. He was sobbing now, clinging to Katsuki’s pants "I've never wanted anything more”
Katsuki squeezed Izuku’s hand tightly and then snatched it away.
“Dammit Izuku” he stated as he shook Izuku off and walked to the door before stalling “ I wanted to ask if you wanted to go for a run in the morning”
With Izuku still on the floor he wiped away his tears and sniffled. “Yeah ok”
“Ill be ready at 7am. Don't be weird, and you better not keep me waiting.”

That night, Izuku slept restlessly.
Or at least, he tried to sleep.
Every time he closed his eyes, he replayed the entire interaction over and over again in humiliating detail. Katsuki catching him. The video playing out loud. The absolute horror of having his phone snatched away right before the exact moment he had been obsessing over for years.
Izuku buried his face deeper into his pillow with a groan.
Why had he started rambling about pleasure?
Why had he said anything at all?
Why did his brain always betray him at the worst possible moments?
He rolled onto his back with another miserable noise, staring blankly at the ceiling of his dorm room. Moonlight filtered faintly through the curtains, casting soft shadows across the walls while the digital clock beside his bed glowed an unforgiving 1:10 AM.
Sleep refused to come. Kacchan was going to be pissed if he wasn't ready by 7am.
Every time his thoughts started drifting, they circled right back to Katsuki’s expression earlier, not angry exactly, but something more complicated. Embarrassed. Flustered. Weirdly quiet.
Izuku pulled his blanket over his face.
Maybe he had finally pushed too far this time.
What if Katsuki secretly hated his childhood nickname?
The thought made his chest ache unpleasantly.
He knew he could be invasive sometimes. Katsuki had been telling him that for years. Although, Izuku never meant any harm by it. He just… liked understanding people’s quirks. Especially Katsuki’s. Katsuki was endlessly fascinating to him, every emotion sharp and explosive and somehow impossible to look away from.
And that stupid video!
Izuku groaned into his blanket again.

Meanwhile, several rooms away, Katsuki was very much awake.
The second he got back to his dorm, he locked the door behind him with an audible click.
Then he stood there silently for a moment.
“…Fucking nerd,” he muttered.
Slowly, Katsuki reached beneath his shirt and pulled out the notebook he had swiped from Izuku’s room on impulse.
It had practically fallen into his hands while Izuku was busy dying of embarrassment.
Curiosity itched unpleasantly at the back of his skull.
Katsuki crawled onto his bed, propping himself against his pillows as he flipped the notebook over in his hands. The familiar messy handwriting covering the front made his eye twitch instantly.
KACCHAN BAKUGO ANALYSIS
“…You’ve gotta be fucking kidding me.”
Despite himself, Katsuki opened it.
The first several pages were somehow worse than expected.
There were timestamps.
Color-coded annotations.
Sticky notes.
Arrows pointing toward badly sketched diagrams of explosions.
Entire paragraphs dedicated to analyzing the emotional significance behind him calling himself “Kacchan Bakugo.”
Katsuki stared in horrified disbelief.
“He’s actually lost his damn mind.”
But he kept reading.
One page was entirely dedicated to Katsuki’s facial expressions during the fight.
Another tried to connect emotional vulnerability to combat output.
One section included possible psychological explanations for why Katsuki never repeated the phrase afterward.
There where two elaborated segments on his heart and arm recovery.
And then there was the detailed breakdown on his cluster move he used before his death and throughout the battle.
Katsuki’s eye twitched harder the longer he read.
“‘Possible internalized embarrassment tied to failure…’” he read aloud flatly.
“‘Protective response toward emotionally significant naming conventions…’ What the hell does that even mean?”
And yet.
Yet the more he read, the quieter he became.
Because underneath all the insanity, all the obsessive analysis and overthinking and terrifyingly detailed observations… Izuku understood him frighteningly well. Too well. Some things Katsuki hadn't even considered about himself.
Katsuki flipped another page.
This one was messier than the others, written in handwriting that looked rushed.
The title read 'Pleasure’
‘If pain caused Kacchan to unlock his cluster move? What could pleasure do?’
Katsuki went still.
Below that, squeezed tightly into the margins, were detailed things that could cause him pain and pleasure.
‘Pain/weakness: restraint, suffocation, thunderstorms?, being cold and wet, embarrassment mixed with failure? Quirkless? Helpless! Weak! Rejection!’
‘Pleasure/strengths: winning, triumph, victory, silence, morning sun, summer? Sex?’
‘Kacchan would love sex, he would be so sweaty, I bet he sparkles, I have to know’
Everything fell silent.
Katsuki stared at the words for a long moment before abruptly snapping the notebook shut.
His face felt hot.
“He’s a Fucking freak,” he muttered again, this time quieter.
He tossed the notebook beside him and dragged a hand over his face, glaring hard at the ceiling like it had personally offended him. Why the hell did that make him hard?
But after a few seconds, he reached over and opened the notebook again anyway.
‘Kacchan’s moves so fast, I bet I can get him to move faster’
‘I wonder what nitroglycerin tastes like?’
‘Kacchan loves praise, I wonder how much satisfaction it can give him’
Katsuki’s breath hitched.
Izuku may have appeared innocent but every detailed description made him shiver. Damn, it wasn't going to be easy waking up early. Katsuki gave himself much needed relief before completely drifting to sleep.

The next morning, Katsuki somehow managed to wake up before Izuku.
He had barely slept at all after reading through that ridiculous notebook. The second he opened his eyes, every stupid thought from the night before came rushing right back into his head with unbearable clarity.
Izuku’s fantasies and the possibilities Katsuki had not even considered. Katsuki scowled violently at the memory.
By the time his alarm went off, he had already given up on trying to fall back asleep. Instead, he threw on his black skull shirt, grabbed Izuku’s notebook from beside his bed, and marched down the dorm hallway before he could think too hard about what exactly he was going to do.
Now he stood outside Izuku’s door, the notebook clutched tightly in one hand.
The hallway was quiet. Hopefully meaning all the others were asleep.
Katsuki stared at the wood grain of the door with narrowed eyes.
Every restless thought from the night before pressed heavily at the back of his mind, making shame curl hot beneath his skin. He should just leave the notebook outside and walk away. Better yet, he should blast the damn thing into ashes and pretend he had never read it.
Instead, he stood there like an idiot.
Because part of him couldn’t stop thinking about those lines squeezed messily into the notebook margins.
‘Kacchan’ was never an insult to him the way others may have thought it was.
“Kachan Bakugo” he whispered to himself, clinging tightly to Izuku’s notebook and his eyes glued to the floor.
Katsuki clicked his tongue harshly.
“Stupid freaking nerd,” he muttered under his breath. “ making me feel this way.”
Before he could reconsider, he knocked once against the door.
Nothing.
No frantic scrambling. No muttered “coming!” from the other side.
Katsuki waited another few seconds before rolling his eyes.
“Of course you’re still asleep.”
He reached for the handle automatically and paused when it turned easily beneath his hand.
Unlocked.
Of course it was unlocked.
“Moron,” Katsuki grumbled as he pushed the door open.
The room was dim and warm with early morning sunlight spilling through the curtains in soft golden streaks. Dust floated lazily through the air, and the entire place smelled faintly like Deku’s laundry, notebooks, and the lingering sweetness of floral, possibly coming from spring air of Izuku’s cracked balcony door.
Katsuki stepped inside carefully.
There, tangled deep beneath blankets near the far wall, was Izuku.
Curled tightly into himself, completely nested in his bed.
The sunlight filtering through the curtains painted soft gleams of gold across his messy green curls and the edges of his face. One arm was tucked beneath his pillow while the other rested loosely near his chest, fingers still slightly curled like he’d fallen asleep mid-thought.
Katsuki stopped moving.
Something uncomfortable twisted in his chest.
Izuku looked… beautiful like this.
Peaceful.
Not the relentless muttering analysis machine that followed him around during the day. Not the future number one hero everyone expected greatness from.
Just Izuku.
Fast asleep and defenseless.
Katsuki exhaled slowly through his nose and shut the door behind him with more care than necessary.
Izuku’s phone lay abandoned beside his head, barely hanging off the pillow.
Katsuki narrowed his eyes.
The screen was dark now, and the charging cable had come loose sometime during the night. Judging by the position of it, Izuku had probably fallen asleep holding it.
Stupid nerd was definitely watching that video again.
The thought should have annoyed him more than it did.
Instead, Katsuki found himself stepping closer before he fully realized what he was doing.
Izuku shifted slightly in his sleep, brow furrowing faintly as he mumbled something incomprehensible into the pillow.
Katsuki froze instantly.
After a moment, Izuku settled again. Then quiet.
Katsuki stared down at him, expression curious as he let his intrusive thoughts get the best of him.
Then, against all logic and self-preservation, he reached out to tuck a curl behind his ear.
“Why do you want me to say Kacchan Bakugo so badly?” he whispered.

Just then, Izuku stirred.
His nose scrunched first, face twisting slightly against the pillow before he let out a long, sleepy yawn. The blankets shifted around him as he blinked slowly, big green eyes heavy with exhaustion and unfocused from sleep.
He just stared upward blankly at Katsuki hovering beside the bed.
Completely unaware of how awkward that situation should have felt, Izuku smiled softly at him.
“Hi, Kacchan,” he mumbled, voice rough and warm with sleep.
Katsuki forgot how to breathe.
The greeting was so casual. So instinctive. Like waking up to Katsuki standing over him was the most natural thing in the world.
Izuku’s hair was flattened awkwardly on one side from sleep, curls sticking out in every direction while sunlight spilled across his freckled face in soft warm sunlight. His eyes were barely open, still hazy and defenseless in that way people only looked moments after waking up.
And he smiled at Katsuki.
Not the bright, excitable grin he gave everyone else. Not the nervous one he used during interviews.
This one was small.
Sleepy.
Fond.
Katsuki’s heart skipped a beat.
He just stared back at him in stunned silence.
Then Izuku blinked harder, awareness finally beginning to crawl its way onto his face.
His expression shifted immediately.
His eyes widened.
“Oh— ahh, Kacchan!” he squeaked, suddenly sitting upright so fast the blankets tangled around his legs. “I’m so sorry! I forgot about our run!”
Panic consumed his face instantly.
Izuku started scrambling wildly to untangle himself from the sheets, kicking the pillow and his phone onto the floor in the process as he rushed to get out of bed.
“I didn’t mean to oversleep, I was just up late and then I think I fell asleep watching—”
“Oi.”
Katsuki moved before he even thought about it.
He slapped a hand firmly over Izuku’s mouth, stopping the frantic rambling mid-sentence.
“So loud,” Katsuki hissed quietly. “Shut it before you wake everyone up.”
Izuku froze, his emerald eyes gleaming up from behind a powerful hand, clearly startled by the sudden contact. Katsuki could feel warm breath against his palm, and for one horrifying second, he became hyperaware of absolutely everything.
How close they were.
How warm Izuku was from sleep.
The sunlight spilling across the bed.
The way Izuku’s long lashes fluttered in confusion.
Katsuki’s entire body locked up.
Izuku blinked slowly beneath his hand.
Then, because apparently the universe hated him, Izuku smiled again.
Small. Soft. Sleepy.
Almost like his hand was causing him some sort of relief.
Directly into Katsuki’s palm.
Katsuki immediately jerked his hand back like he’d been burned.
“You're such a freak,” he snapped automatically.
“I didn’t say anything!” Izuku whispered defensively, though his voice still sounded half asleep.
“You were thinking weirdly.”
“That’s not fair, Kacchan!”
“This is all your fault for being creepy all the time.”
Izuku puffed his cheeks out slightly in offense while trying to free himself from the blankets again. Katsuki watched him struggle for exactly three seconds before clicking his tongue in annoyance and grabbing the sheets himself.
“You’re tangled like an idiot.”
“Well, whose fault is that?” Izuku muttered. “You’re the one who startled me awake.”
Katsuki paused.
“…You left your damn door unlocked.”
Izuku blinked.
“Oh.”
“Yeah. ‘Oh.’”
Izuku rubbed the back of his neck sheepishly, avoiding eye contact now. “Sorry.”
Katsuki became painfully aware that he was still standing beside Izuku’s bed holding Izuku’s notebook.
Izuku noticed too.
His eyes slowly drifted downward. Then they widened in horror.
“Kacchan,” he whispered.
Katsuki immediately scowled. “What.”
“Why are you holding my notebook?”
Fuck.
Katsuki looked down at the notebook. Now holding it with two hands.
“Izuku you really are a freak” He said softly.

“How much did you read?” Izuku asked quietly.
The question hung heavily between them.
Katsuki didn’t answer right away.
Instead, both hands tightened slightly around the notebook before he finally looked at him directly.
And Izuku knew immediately.
He could see it in Katsuki’s burning eyes.
Those sharp red eyes that never hid anything as well as Katsuki thought they did.
He had read all of it.
Every page.
Every annotation.
Every Specification.
Every horrifyingly detailed observation Izuku had scribbled down at three in the morning while obsessing over the broadcast of Kacchan and All for One’s battle.
Izuku’s stomach dropped.
Heat rushed painfully into his face as realization crashed over him all at once. Katsuki had seen everything. The theories. The emotional analysis. The notes in the margins. The embarrassing sections he’d written and immediately regretted but never crossed out.
The vulnerable parts.
The honest parts.
Izuku suddenly wished he had the invisibility quirk.
Katsuki stayed silent, expression unreadable in a way that made panic begin curling tightly in Izuku’s chest.
Because he knew that look.
Flashbacks flickered through his mind uninvited and sharp.
Ash covered notebooks.
The smell of smoke.
Izuku’s breathing hitched slightly before he could stop it.
Katsuki noticed immediately.
His brows furrowed.
“Kacchan…” Izuku’s voice came out smaller than he intended.
He hated that.
Hated how quickly old fear could crawl back into his bones no matter how much time had passed. They were different now. Katsuki was different now.
Izuku looked down at the blankets tangled in his lap.
“Please don’t burn it,” he said softly.
The words left the room painfully quiet.
Katsuki stared at him.
Then something in his expression shifted abruptly, shock first, then something tighter. Something almost wounded.
“…What?”
Izuku forced out a nervous laugh, trying to make it sound less serious than it felt. “I know it’s weird and invasive and honestly kind of embarrassing and I probably crossed a line and—”
Katsuki reached for his chin and lifted him towards him “Izuku.”
Izuku stopped immediately.
Katsuki rarely used his first name in that voice.
Low. Soft. Serious enough to cut through his spiraling thoughts instantly.
Katsuki set the notebook down on his beside table.
“I’m not gonna burn your damn notebook.” Now Katsuki was caressing his cheek, rubbing his thumb on Izuku’s cracked lips.
Izuku blinked. Delighted in this tender affection coming from his rival.
“Do you seriously still think I’d do that?”
Izuku opened his mouth.
Nothing came out.
Not really. Not anymore. Not the one standing in front of him now.
Sometimes the old fears lingered in quiet corners of his mind, surfacing before he could stop them.
And judging by Katsuki’s expression, he understood exactly what Izuku hadn’t said.
The silence stretched too long.
Katsuki looked away first, letting his hands fall beside him.
“Tch,” he muttered bitterly. “Yeah. Guess I earned that.”
Izuku’s chest tightened painfully.
“No,” he said quickly, reaching out for him and pulling him down to the bedside with him. “Kacchan, I didn’t mean—”
“Forget it.”
But Katsuki’s voice lacked its usual bite now as he slumped down beside Izuku.
Izuku watched him carefully, noticing the way Katsuki avoided looking directly at him, jaw tense in a way that looked strangely guilty.
Then Katsuki sighed heavily, crossing his hands behind his head as he leaned back and stared up at the ceiling.
“…The notebook’s creepy as hell, though.”
Izuku made a wounded noise. And turned to hover over Katsuki, Both hands laying beside his head.
“Kacchan!”
“You counted how many times I blinked during a fight.” Katsuki shot back leaning up on his elbows.
“It was relevant!”
“It was NOT relevant.”
“There were emotional indicators—”
“You’re insane. I’m begging to think you just want to fuck me!”
Izuku flushed hard, turning cherry red and curling his hands further into his blankets while Katsuki laid back and smirked up at him. Because ok yeah maybe he thought about it sometimes. Sometimes a lot.
“I…” Izuku began to speak, but that challenging smirk stopped him.
What seemed to be a stare off was beginning to happen, slow and inevitable, like neither of them could stop it even if they tried. Their eyes kept studying each other. The silence began to feel heavier than anything either of them had actually said.
It wasn’t just looking anymore. It was a challenge.
Neither of them spoke to break it, and that was the problem.
Because whatever was building between them didn’t feel like an accident anymore, it felt like something that had been waiting for the right moment to surface, quietly pressing at the edges of everything they pretended not to see.
Katsuki let out a quiet breath, before he finally spoke.
“You watch that video a lot, don’t you?” he asked, his voice lower than usual, stripped of the sharpness he carried around everyone else. “Can’t really blame you. I haven’t been at that level since then… not before it, either.”
He gave a short laugh, humorless and rough around the edges. “Truth is, I’m lucky I’m even still alive.”
Izuku stared mesmerized by Katsuki’s words, lying in his bed. What did he do to deserve his presence?
Slowly, Katsuki raised his right arm, turning his hand over as though he still couldn’t quite believe it belonged to him. The light caught the faint scars running along his skin. His fingers flexed once. Twice. Careful. Deliberate.
“And lucky I still have this.”
For a moment, as Izuku gazed in awe down at him Katsuki stared at his palm in silence, like he was replaying the battle all over again in his head, the explosions, the heat, the ache of pushing himself past every limit he’d ever known.
“I learned a lot about myself during that fight,” he admitted. “More than I wanted to.” His eyes flicked toward Izuku. “Cluster finally clicked for me. Like something that’d been locked up inside me finally broke open.” A faint smirk tugged at the corner of his mouth. “I’m getting better with it too, but you already know that. You notice everything.”
Izuku didn't dare speak.
Katsuki swallowed, shoulders tensing almost imperceptibly. “I thought about you back then.”
He paused. Long enough for Izuku’s heartbeat to stumble.
“And I thought about you last night, too.” He admitted.
Shame curled tightly in Izuku’s chest, heavy and unbearable. Every sentence he had written suddenly replayed in perfect, humiliating detail inside his head. Every description. Every thought he’d jotted down.
There was something vulnerable in the confession, something Katsuki clearly hated exposing.
“What you wrote about me…” he muttered. “All that perverted stuff.”
There wasn’t any real bite behind his tone, If anything, he sounded curious.
“You really thought of everything, didn’t you?” His crimson eyes finally met Izuku’s fully now, intense enough to make it hard to breathe. “Every scar. Every habit. Every damn thing I do.”
Izuku could feel warmth radiating off him.
“But you missed one thing.” His voice softened.
“You never thought about the way I see you.”
The words settled heavy between them.
“You write about me like I’m some God worth worshipping,” Katsuki continued quietly. “Like I’m unstoppable. Like I’m something larger than life. Sometimes it feels like you're the only one who sees it.” He shook his head once. “But when everything was falling apart… when I thought I might actually die…”
His hand curled slightly at his heart.
“You were the reason I kept moving.”
Izuku inhaled a deep breath.
Katsuki’s expression tightened, like admitting this hurt more than any injury he’d ever taken. Still, he forced the words out anyway.
“You were the person I kept thinking about coming back to.”
Katsuki reached to caress Izuku’s scar on his cheek.
“You’re my hero, Izuku.”
Without thinking Izuku leaned forward, his lips brushed against Katsuki’s in a delicate kiss at first, soft, cautious, testing. For a brief moment, the world around them seemed to stop.
Then Izuku shifted forward, swinging one leg carefully over Katsuki’s hips until he was straddling him completely. The movement drew them flush together, and the sudden closeness sent another wave of heat through him. Katsuki’s hands instinctively tightened against Izuku’s hips as the green haired boy rocked against him.
The position made everything feel unbearably intense.
The kiss deepened almost instantly, emotion crashing between them all at once after years of tension, longing, anger, and unspoken feelings finally breaking apart. Katsuki grabbed at Izuku’s waist, pulling him closer with enough force to make Izuku gasp against his mouth.
The sound was swallowed immediately by another kiss, hotter this time, overwhelming in a way that made Izuku’s head spin. Every nerve in his body felt alive. It was consuming him faster than he could keep up with. He wanted more. Needed more.
Izuku could feel Katsuki’s erection beneath him, unmistakable evidence of how affected they both were by this. The realization made him inhale sharply. His face burned again, but this time embarrassment tangled together with desire he’d always been curious about.
When they finally pulled apart for air, their breathing came quick and uneven. Their foreheads rested together for a moment, neither of them moving away.
“Who knew that kissing The Dynamite would feel like this?” Izuku breathed softly, his heart was beating fast, afraid that he might ruin the moment.
Katsuki’s expression widened in shock at hearing Deku call him something other than “Kacchan.” A wide grin spread across his face and his eyebrows narrowed as he grabbed Izuku by the hips and flipped them over so quickly that it caught the boy completely off guard. Before Izuku could even process what had happened, Katsuki was straddling him instead.
“You want to see Kacchan so hot and bothered so fucking badly, well take notes you fucking freak” Katsuki growled in his ear. Beaming in triumph, his smirk was familiar in a way that he was about to take the victory.
Years. For years Izuku had waited. Quietly, patiently, stubbornly, sometimes embarrassingly desperately, for Katsuki to say that name again.
And Katsuki had never given it to him.
Not once.
Not after the war. Not in passing. Not even when Izuku had pushed just a little too far, hoping for some accidental slip.
So when he said it now.
When it finally came out of Katsuki’s mouth again, after everything.
It hit Izuku harder than anything else could have.
Smug. Confident. Infuriatingly casual, like it hadn’t been something Izuku had been carrying around in his chest for years.
Katsuki pulled his shirt up and over his head in one smooth motion, tossing it aside without a second thought. The early morning light caught on his toned physique, highlighting the definition of his chest and the strength in his arms, every movement sharp and effortless.
Katsuki hoovered above him, so unapologetically himself, like he wasn’t even aware of the effect he was having. Izuku’s thoughts were unable to keep up as something far more intense than simple admiration settled in his dick. Everything he’d ever tried to ignore, too vivid, too real, too overwhelming to dismiss.
And now trying to hold onto whatever fragile thread of composure Izuku had left, his thoughts scattered in every direction at once, his brain short circuiting and refusing to cooperate with the simplest task.
Izuku’s gaze stayed fixed on Katsuki’s chest, unable to look away. Right in the center was the scar he carried openly, something earned and endured. Almost like a mark of pride.
Hesitantly, Izuku reached out, his scarred fingers making contact.
Katsuki didn’t flinch.
Instead, he reached his right hand over Izuku’s, covering it firmly and squeezing gently, anchoring him there without pulling away.
“I want to fuck you Izuku” Katsuki said as easy as breathing, his red eyes burning into Izuku’s soul.
Izuku wasn’t sure what to do with his own body anymore. His mouth opened slightly as if he meant to speak, but instead a moan came flooding out.
It caused Katsuki to immediately spring into action. In an instant, he pushed himself up and off the bed in a sharp, fluid motion, the mattress dipping as his weight left it. He striped Izuku bare starting with his stupid plain T-Shirt that read “sleep shirt” and then made his way down to his black gym shorts which slipped off easily exposing Izuku’s pretty pink cock that came springing up as his shorts were yanked off, causing Izuku to make a whine from the sudden cold.
“You little perverted shit, no underwear at all Huh?” Katsuki degraded. “Fuck, where you keep your lube?” Katsuki swung open Izuku’s bed side table drawer and sure enough there it was.
“Bingo!” He whispered to himself before snapping his gaze back onto Izuku. “Any condoms?”
Izuku, sprawled out on the bed completely naked, leaned up on his elbows and shook his head. Katsuki closed his eyes briefly, letting out a huff before returning to Izuku and laying the lube next to him. The damn pervert had a half empty bottle of lube and no condoms. Whatever, Katsuki thought, he could fuck him raw the nerd would probably beg for it anyway.
Izuku realized Katsuki seemed uncertain of what to do or how to begin, so he took a moment before speaking, deciding he would do what he does best to his beloved Kacchan, rage bait him.
“I didn't think you were going to be so slow at this Katsuki, remind me to write that down.”
Katsuki’s face flushed a deep red, twisted somewhere between anger and irritation.
“That's Kacchan to you,” Katsuki snarled under his breath, voice low and sharp. He spread Izuku’s legs and kneeled his knee right between Izuku’s groin.
“Do you really think you know everything about my quirk Deku?” Katsuki asked in a condescending tone, Izuku blinked twice but before he could even speak Katsuki shoved two fingers in Izuku’s mouth.
“Suck” Katsuki demanded as he leaned down to whisper into Izuku’s ear. And Izuku did as he was told. Once Katsuki saw his opening he took his claim, first littering the boy’s neck with kisses that quickly made their way into bites. Izuku’s breathing stuttered as he tried to steady himself, but it didn’t quite work. Now drooling and without a way to speak, Izuku arched his back and dug his nails into Katsuki’s back. This caused Katsuki to free his fingers from Izuku’s mouth and tangle them into his messy green hair instead.
Izuku struggled beneath Katsuki’s figure, that contradiction and his erection grinding against each other made Izuku’s thoughts stumble completely over themselves.
Izuku nuzzled his way into the crook of Katsuki’s neck and was completely overwhelmed by Katsuki’s sweet musk, warm and familiar in a way that made him salivate in complete bliss.
“Kacchan please, I want it,” Izuku begged. Katsuki began to distribute his lips down Izuku’s body, each one leaving a warm sensation in its place. He lingered on his nipples, squeezing one in between his fingers and the other between his teeth. Heat was spreading through him as quick as wildfire causing a whine to escape Izuku’s mouth like music to Katsuki’s ears as he descended downward to the curve of his lower stomach and groin.
Katsuki’s rough hands anchored onto Izuku’s thighs as he lifted himself up to remove his sweatpants and boxers. Izuku couldn't help but stare.
The morning light spilling through the window only made it worse. Kacchan’s dick was thick and leaked with pre cum as he grasped it in his scared hand. Light stretched across old scars and the defined lines of muscles earned through years of relentless training. The glow softened him just slightly. If anything, it made him look even more Godlike.
“Kacchan’s so pretty,” Izuku whispered softly. A red tent washed over Katsuki’s ears and he snatched up the half empty tube of lube he left sitting on the bed. He squeezed just enough onto his fingers and stretched Izuku’s thighs backward before giving him the most heart wrenching smirk of his life.
“We have to get you prepped first”
Izuku swallowed hard, but it did nothing to steady the burning feeling spreading through him.
Katsuki looked alive in a way that stole the air from his lungs. Fierce and warm and blindingly beautiful all at once. He proceeded to press two fingers deep and quick inside Izuku’s pink twitching hole.
Izuku screamed without warning and Katsuki covered the nerd’s mouth with his other hand.
“Not so loud hero”
Katsuki stares down at him watching as he struggles to keep himself together, clutching his fists into the sheets below him. The damn nerd hasn't even had his cock yet, and he’s moaning from every thrust of Katsuki’s fingers. It doesn't take long for Katsuki to find that sweet spot, as Izuku’s eyes roll to the back of his head.
“That’s it” Katsuki grins as Izuku gasps underneath Katsuki’s palm from the piercing sensation that causes Katsuki to release Izuku’s mouth.
“Ka-ah-chan” Izuku manages to cry out. He begins rocking his hips now, chasing any type of friction. He's a sweaty mess underneath him and Katsuki loves every bit of it.
Katsuki pulls out his fingers after a couple of short breaths, Izuku trembling from the loss.
“Are you ready to be completely ruined?”
And Izuku nods his head so quickly as if on command.
“Yes, please, Kacchan, please fill me up, I want all of you” Izuku pleads and how could Katsuki say no to that.

Katsuki hovered above him, his cock in hand so naturally, so confidently unaware that every small movement, the flex of his hand on his dense and heavy cock, the rise and fall of his scar on his chest, the way his crimson eyes locked onto Izuku’s, felt devastatingly unfair.
Katsuki brought his cockhead to the green haired boy’s fluttering, soaking hole, Izuku swallowed hard, trying to steady the anxious feeling spreading through him as Katsuki rammed his hardened length straight into Izuku.
Izuku bit the side of his hand, preventing another scream from escaping, because this time Izuku’s eyes seemed to pop out of his skull. Katsuki held tight to Izuku’s hips as he railed him.
And then, sparks flickered to life above him. Small, controlled explosions danced across the air like scattered stars, lighting up the space between them in bursts of gold and crimson. They weren’t chaotic, no, they were deliberate, precise, beautiful in a way Katsuki would never admit out loud.
He looked as if he had been carved out of fire itself.
“Are you watching me pervert?” Katsuki snapped as he thrust deeper, sweat glistening from his torso. The brutal roll of his hips caused Izuku to hold tightly to one of Katsuki’s forearms as he moved inside him. Harder. Faster.
Izuku’s right hand moved below his lip, letting little mumbles escape as Katsuki rocked him. His eyes stayed glued to Katsuki, studying every progression like his life depended on it.
“I…knew… it” Izuku managed to mutter between breaths “Kacchan’s like… a fairy”
“Kacchan’s gonna dominate the fuck out of you” He drove his hips into Izuku ruthlessly almost as if trying to split him into. His abs flexed and shimmered with sweat. So much sweat.
“Yes YES!” Izuku cries as his eyes curl inward to the tip of his nose from Katsuki’s precise vile movements.
“I can’t believe you right now” Katsuki snarled feral and wrecked as he clutched Izuku’s hair in his hand forcing him to look at him.
“You said…take...note—AH!”
“You like it when I call myself Kacchan don’t you freak?”
And he did, he liked it a lot. He often got off on it.
Besides their heavy breathing the room echoed of a rough clapping against Izuku’s bare skin that was beginning to flush red. That didn’t stop Katsuki, he popped his hips back, with a flexing strain, that slammed so deep it had caused Izuku’s belly to bulge gorgeously.
“You feel me?” Katsuki asked, guiding Izuku’s hand away from his mouth and to his stomach. He slows his thrusts, pulls back out about half way and slams into him again harder.
Izuku was left rasping for air as Katsuki continued his controlled thrusts. Grinning and growling like a feral animal.
“Kacchan’s inside—AH—Kacchan's inside me”
Above Izuku, Kacchan looked radiant. Like the sun had taken human form and decided to fuck him.
“That’s right Kacchan’s inside you”
Everything about him burned so brightly it was impossible to look away, especially with sparks popping off all around him.
“You’re… gonna…. catch us on fire” Izuku managed to get out.
Katsuki ignored him, licking his teeth and leaned down into a filthy kiss. The moment their lips touched again, Izuku felt warmth rush through him all over at once, from the huge cock inside him to Katsuki’s tongue kissing him deeply, firmly, like he was trying to pour every unspoken feeling into the space between them instead of saying it out loud.
After a few breathless seconds, Izuku pulled back just enough to breathe. Instinctively, he buried himself against Katsuki’s collarbone when a spark popped by his ear, sharp and sudden, causing him to whine and curl his arms inward beneath Katsuki and tuck himself even closer against him as he was rocked.
Katsuki’s skin was burning hot beneath his cheek. Izuku could hear the steady rhythm of Katsuki’s heartbeat up close, the slight rise and fall of his chest against him. It grounded him and overwhelmed him at the same time.
“What’s wrong Deku?” Katsuki inquired as he slowed his pace from Izuku’s sudden change in movement. Izuku shivered. And a single tear shed down his cheek. He thought that if he said anything, Kacchan would stop.
Around them, faint sparks began to crackle and pop in the air again, tiny bursts of orange light flickering near Katsuki’s arms and shoulders. They snapped softly like miniature fireworks.
“Kacchan” he murmured nervously, fingers curling tighter into Katsuki’s chest as another spark popped from his back. He wasn’t truly afraid of Katsuki hurting him, but the explosions still made his heart jump instinctively. Especially this close.
Katsuki let out a quiet huff that almost sounded amused. “Relax,” he muttered, though the sparks still danced restlessly around them, presenting how satisfied he really was.
“Kacchan’s got you baby”
Clinging closer, Izuku’s face remained tucked near Katsuki’s neck and collarbone, surrounded by the smell of smoke and sweat and something uniquely Katsuki that made his head spin.
Katsuki continued fucking into Izuku. Again and again, not letting up but marveling in his pleasure of Izuku trembling beneath him.
Izuku’s tears began pouring down his cheeks, consumed by all that was Katsuki.
“Ka-ahhhh” Izuku let out in satisfaction. But Katsuki was worried he had stung him with his quirk. He slowed his pace and pulled out, only to cause Izuku to scramble in panic. He wrapped his legs around his torso and pulled him down the best he could.
“No, no, no, Why?! Put it back!” He demanded with watery eyes and rosy cheeks.
“You’re crying!” Katsuki hissed as the last of his sparkles fizzled out.
Izuku pouted, cheeks puffing slightly in annoyance, but that only seemed to make Katsuki laugh and that irritated Izuku. So he wrapped his arms around his neck and head butted him before pulling him down farther with the strength of his legs.
“Ah, Fuck”
“I said now!”
“You little shit!” Katsuki grinned his teeth, “Don’t tell me what to fucking do!”
Katsuki leaned back, the flex of his back muscles effortlessly breaking Izuku’s grip around him and forcing his arms to loosen from his embrace. Katsuki clutched Izuku’s cock and Izuku let his legs fall back to the bed.
Before Izuku could let out another scream Katsuki snatched his abandoned boxers that he had slung to the side and stuffed it in Izuku’s mouth.
“You like that don’t you freak?”
Izuku’s eyes expanded as he inhaled and gazed down at his now filled mouth.
“Don’t you dare—” Katsuki couldn’t even finish his demand as his hand that was holding tightly to Izuku’s cock was now engulfed in a sticky white substance. He jerked his head down and back to Izuku who appeared to be in a delirious state of bliss.
“You came from that?” But Izuku couldn't answer even if he wanted to. “Your such a weirdo”
Katsuki wiped his hand on one of their nearby T-shirts they had striped off earlier. He then proceeded to lift both of Izuku’s legs over his shoulders. Izuku laid there utterly undone by something as simple as a smirk. He could already feel himself growing hard again.
“I know you have another in you” Katsuki whispered in his ear.
His arms slid around Izuku more securely, holding his head close and his legs over his shoulders completely folded.
Then he buries his entire shaft in a single plunge. Fast and then to a halt, Izuku screams into the fabric. Katsuki smiled down at Izuku, and for a moment he thought he saw stars dancing in the bright green of his irises. Then another spark crackled between them, lighting the air gold, and he realized it was only the reflection of his own sparks flickering to life again in Izuku’s eyes.
“Shit” Katsuki breathed and Izuku hummed through the cloth.
Slowly Katsuki pulls out and back in over and over, deeper and deeper until Izuku grunts and squirms.
“Mine” Katsuki bares through his teeth. Every small crackle of sparks illuminated him briefly, like living fire wrapped in human skin. All Izuku can do is take it.
Katsuki doesn't let up, thrusting his thick cock into Izuku’s chubby hole rearranging his insides until it molds to him. Tears shed from Izuku’s eyes again, but Katsuki didn’t stop this time, this time he pounded into him harder and licked his tears right off the side of his cheek.
Izuku had never been this aroused before and now here Katsuki was above him, as beautiful as morning's first light pounding him into obliviation.
Katsuki held him through every flicker of light. And after a few more thrust he removed the boxers away from Izuku’s mouth for only a moment before he was babbling again.
“Coc..k…chan—” Izuku moaned out, his fingers trembling slightly where they rested beside his head.
“Fuck Izuku, Can’t even say my name right you’re so cock drunk”
“ta…tas..taste…you”
“You can suck me off another day dammit”
“Noooo….sweattt” Izuku huffed as he stuck out his tongue.
“Fine you freak!” Katsuki examined how much sweat he had collected on his palm and decided to give Izuku a strip of his index finger. The green haired boy wrapped his lips around it sucking to the best of his ability before Katsuki stripped it away and replaced it with his tongue. Izuku moaned into the kiss, giving in completely beneath the warmth of Katsuki’s mouth before cumming instantly.
Katsuki withdrew from the kiss and delivered a few more hard thrusts into Izuku before spilling his load into Izuku.
Dazed, Izuku looked up at Katsuki, and somehow that made everything feel even more real. Katsuki, strong, stubborn, impossible Katsuki, looked just as overwhelmed as he did, like neither of them quite knew what to do with what they had just done.
Both of their hair clung damply to their foreheads, messy from the heat between them, loose strands sticking to flushed skin as they tried to catch their breath.
“Dammit” Katsuki breathed as he released the connection and fell over to Izuku’s side.
His chest beat rapidly as he lay there staring up at the ceiling, every breath still uneven in his lungs. He dozed off for only a moment.
When he opened his eyes his mind felt dazed and distant, like everything around him had gone soft at the edges. The birds sang outside and the morning light had shifted in the sunny room. Suddenly, Izuku was there above him, hiccupping quietly, wide green eyes fixed on Katsuki as he stared down at him in stunned disbelief.
“Kacchan’s Amazing”
In the time that Katsuki had dozed off Izuku had cleaned them up and put on both of their comfy pants. He had searched widely around for his phone only to be found underneath his bed. And currently he was sitting beside Katsuki jotting down analysis in his notebook.
When Katsuki noticed the notebook, his expression shifted in an instant. Sharp, possessive, almost offended. And before Izuku could react, Katsuki slung it out of his hands with a quick motion. Both the pen and notebook hit the floor with a thud.
“I’m burning that damn thing before someone gets a hold of it!” He grabbed Izuku rolling and pulling him in close, cutting off any protest as he pressed their mouths together in a sudden, heated kiss.
Izuku pulled back “You will not!”
“Do you want a villain to get a hold of that?”
“I’ll lock it up! Promise”
Katsuki nuzzled into Izuku’s soft curls, inhaling deeply before pushing his hair back and bringing his lips down to kiss his forehead.
“You will be the death of me”
Izuku glared up, pressing a warm smile into the crevice of Katsuki's collarbone.
“I guess we are not going for a run anymore?”
Katsuki leaned back slightly, his eyes tracing over Izuku’s face as if he were trying to memorize every detail, pausing to admire the soft glow of his skin and freckles.
“I think you have given Kacchan enough cardio for today Hero.”