Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/12055224.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      僕のヒーローアカデミア_|_Boku_no_Hero_Academia_|_My_Hero_Academia
  Relationship:
      Bakugou_Katsuki/Midoriya_Izuku
  Character:
      Bakugou_Katsuki, Midoriya_Izuku
  Additional Tags:
      Aphrodisiacs, Consensual_Underage_Sex, Top_Bakugou_Katsuki, Breathplay,
      Humiliation_kink, Praise_Kink, Rough_Sex, Rough_Oral_Sex, Creampie,
      Masochism, Sadism, Frottage, Attempted_Rape/Non-Con, (But_it's_not_the
      main_pairing_and_nothing_really_happens), Loss_of_Virginity, Canon
      Universe, Smut, Dirty_Talk
  Series:
      Part 1 of The_'BD'_in_'BDSM'_is_for_BakuDeku
  Stats:
      Published: 2017-09-11 Words: 7882
****** Too Early For This ******
by Skaii
Summary
     In the process of rescuing a girl from a villain, Katsuki becomes
     afflicted by an aphrodisiac quirk. His pride refuses to let him be a
     victim. But for once, maybe Deku helping him won't be so bad...
Notes
     first attempt at a my hero academia fic, so i hope they're not too
     ooc.
     i've been wanting to write a bakudeku fic centered around a lust
     quirk almost since i first started watching bnha! originally i was
     planning to have deku be the one affected by it, but then i saw that
     had already been done and i switched it to bakugou.
See the end of the work for more notes
Okay, so maybe it was better to leave things to the pros sometimes, but what
the hell was Katsuki supposed to do?
He'd been walking past an alley, when two dark shapes— far in, past the
dumpsters— caught his eye. At the sight of some creep advancing upon a chick in
an alleyway, he did a double-take.
Son of a bitch, it was too early for this.
Katsuki charged. He couldn't risk an explosion in these close quarters, not
with a civilian so close. Besides, he could get in shit if he injured a villain
too badly. No way in hell was he gonna jeopardize his career as a pro-hero.
Instead of activating his quirk, he aimed a flying kick at the villain's back.
It knocked him off his feet.
"Go," Katsuki snarled. He wasn't stupid enough to take his eyes off the villain
while he spoke, but it wasn't the gross ass lecher he was speaking to.
The frightened woman gave a tiny nod and ran for it.
As an afterthought, Katsuki shouted after her, "and call the police!"
The villain didn't stay down for long. Katsuki watched with a sense of
satisfaction as he staggered to his feet, his nose bleeding after hitting the
wall. Damn right, he'd teach him he was a force to be reckoned with, quirk or
no quirk. The villain backed further away, attempting to keep his distance but
only succeeding at putting his back in a corner.
Katsuki finally got a better look at him. He was wearing some stupid, gaudy ass
costume with a toga and a quiver of arrows, one of which he had in his hand.
What the actual jizzing fuck,Katsuki thought.Am I fighting goddamnCupid? What a
joke.
"You'll regret interrupting me," the villain threatened. The attempt was ruined
by the fact that Katsuki could see his hand trembling as he wiped the blood
from under his nose. He was tense. A cornered animal waiting for attack.
"Shut the fuck up already." Ugh, shitty weaklings like this pissed Katsuki off
the most. Trying to sound all cool, when he was just a pussy. Wait, no, that
was an insult to pussies. That shit could push out an entire fucking baby, he
kinda had to have some respect for that, but— Katsuki digressed. "Couldn't you
have picked a better time to do this shit? I'm going to be late to school."
Katsuki bared his teeth and cracked his knuckles. The guy seemed like a small-
fry, he could get this done in one hit. Or did he even really need to hit him?
He'd probably get bitched at for roughing him up too much... The fucking pansy
looked like he was about to shit himself anyway, he'd probably give in easy.
That was Katsuki's first mistake: underestimating him.
A cornered animal is a desperate one.
Katsuki relaxed his shoulders and narrowed his eyes at the guy. "I'll kick your
ass in a fight, fucker, and don't even think about trying to run. How 'bout you
just drop the weapon and put your hands up?" He said it in a calm, even voice,
or at least what passed as calm and even for Katsuki. So... not very calm or
even at all.
The villain's eyes darted around. He didn't move.
Katsuki's temper flared. "I said,put your motherfucking hands up—" he took a
single stomp forward.
The man let out an animalistic yell and charged at Katsuki recklessly, swinging
every which way. Katsuki's eyes widened and he stumbled to dodge. For once, he
was caught off-guard. Out of reflex, he ignited the sweat on his palms and
aimed dual explosions at the villain.
The villain staggered. Moments later, he fell to the ground, eyes rolling back
in his head.
"Fuck," Katsuki hissed. "Fuck, fuck, fuck!" He knelt down and jabbed his
fingers into the guy's neck. He felt around, until something thrummed under his
fingers. Thank fuck.
Still, this wasn't good. He'd unleashed two full-force explosions on a weak
villain. There was no way the guy wasn't gonna end up in the hospital for
emergency care. And there was no way Katsuki wasn't gonna end up getting blamed
for it—
A strangled gasp ripped Katsuki from his thoughts. He leapt to his feat and
whirled around.
There, standing at the entrance to the alley, was fucking Deku.
"K-Kacchan," Deku stumbled forward, wide-eyed and pale-faced. "Kacchan, is
he—?"
"No, you dumbass!" Katsuki snapped. "I can see you jumping to your shitty ass
conclusions, fucking stop it! This fucker's a villain, okay?"
Deku flinched slightly. "I- I know that!" He said loudly, digging his nails
into his palms.
A beat of silence. He added, softer, "I know you wouldn't hurt someone innocent
like that..."
Deku closed the rest of the distance and knelt beside the body, doing the same
as Katsuki had.
Katsuki smacked his hand away. "No, he's not fucking dead."
Deku's eyebrows furrowed in that irritating way that made Katsuki's fingers
itch, itch to smooth away that stupid goddamn crease between them. "But he's
injured, Kacchan, you could get in a lot of trouble for using your quirk! What
were you thinking? If the police find—"
"It's a bit fucking late for that," Katsuki interrupted with a scowl. "They're
already on their way."
"W-what?!" If it were possible, Deku paled even more.
And then, for the second time that day, Katsuki was caught off-guard. Because
Deku grabbed his wrist. And he started fucking running.
All Katsuki could do was stumble after him and splutter out curses. Deku had an
iron grip on his arm, and he was hell-bent on dragging him... somewhere.
Goddamnit, it was too fucking early for this.
They ran. And they ran. For some reason, Katsuki could feel himself getting
more winded than normal.
They were a long distance away when Katsuki finally dug his heels in. Deku
slowed to a stop. The two of them collapsed, panting, on the sidewalk.
Katsuki's chest heaved as he gulped in air. He felt too hot, despite the sweat
cooling on his skin. They ran more and for longer during training on a regular
basis, and yet for some reason, Katsuki felt like he was dying. Beside him,
Deku was a little winded, but mostly fine. What the hell, Katsuki was supposed
to be better than him!
"What," Katsuki panted, "the fuck was that?"
Deku winced at the murderous glint in Katsuki's eyes. He held his hands up. "I-
I didn't want you to get in trouble? S-so I thought we should get out of there
before they came?"
"You stupid fuck! There was a witness!" Katsuki grabbed the front of Deku's
shirt and snarled in his face.
"W-what?"
"The chick I saved," Katsuki explained, gritting his teeth. "She saw me, she
saw my fucking uniform. And now because of your dumb ass I look even worse!
What do you think they're gonna think when I'm not at the scene where I fucking
knocked a guy out, huh?!"
Deku paled. He began to stammer out apologies, but Katsuki cut him off by
shoving him aside roughly and letting out a frustrated growl. A quick look
around informed him that Deku had succeeded at running in the exact opposite
direction of the school. They were almost back home, for fuck's sake.
"Save it." Katsuki pushed himself to his feet. "I'm fucking going to school,
before I'm any—"
Black spots swam across Katsuki's vision. His legs wobbled. The dizziness hit
him hard and fast.
"Late...r..."
The ground was rushing at him. Before Katsuki's face could get acquainted with
it, strong arms wrapped around him and pulled him steady against a warm body.
"-cchan. Kacchan!"
The ringing in Katsuki's ears cleared after a moment. His eyes fluttered and he
looked up into worried green eyes.
"Are you okay?" Deku fretted, shifting to hold him with one arm in order to
reach up and press the back of his hand to Katsuki's forehead. The furrow of
his eyebrows deepened. "K-Kacchan, you're burning up!"
Katsuki despised that look on his face. He shoved Deku off and stood up
straight, ignoring how he swayed. "I'm fine," he snapped.
"You're not fine, you're sick. L-let me help you home," Deku said, grabbing
Katsuki's arm. The touch made a shiver run through him.
"I don't need your fucking help!" Katsuki exploded. He pried Deku's fingers
from his sleeve and gripped them bruisingly hard.
Deku's eyes flickered to Katsuki's right arm. He frowned. Katsuki followed his
gaze down to a tear in his sleeve. Through it, a line of red was visible. He
became aware of a slight sting.
"But you're hurt..."
"It's nothing. That asshole must've grazed me." Katsuki let go of Deku's
fingers. "Are you done yet, or can I go the fuck to school before I'm any
later?"
"You can't really be thinking about going to school when you're sick!" Deku
argued.
Katsuki flipped Deku off and started walking. Yeah, he did want to just blow
off school and stay home, but his pride refused to let him give in that easy.
Not with Deku looking at him fucking pityingly.
But the steps he took made it clear that maybe being stubborn wasn't the best
idea. He was stumbling and off-kilter. Everything was too hot, he felt like he
couldn't get enough air. His body ached.
What the hell is wrong with me?
Katsuki didn't realize he'd come to a stop, still swaying, until Deku caught up
to him. "At least let me patch up your arm," he begged. "It's your right arm,
isn't it? I-it'd be difficult for you to bandage it with your left hand."
"Fucking fine," Katsuki muttered. Deku looked surprised, like he hadn't
expected him to give in so easily. And yeah, Katsuki normally wouldn't, but
frankly he felt like shit. "My house. My parents aren't home."
They turned around to head to Katsuki's house. And if Katsuki leaned on Deku
during the walk there, well, Deku didn't mention it.
Luckily, it wasn't too far of a walk. Deku fumbled with the door and they
stepped into the entrance, pausing to take off their shoes. Both knew that
Katsuki's mother would kill them if they tracked dirt inside. Once his shoes
were off, Deku stopped and stared, head swiveling around. It had been years
since he last came over. Subtle things had changed since then.
"Oi, shitnerd!" Katsuki elbowed him. "If you're just gonna stand there and gawk
then get the fuck out."
"A-ah, sorry, Kacchan!"
Deku guided them to the bathroom. Katsuki hadn't known whether he would even
remember where it was or not. Inside, Katsuki collapsed on the edge of the
closed toilet. The fluorescent light above made his head spin, eyes swimming.
He nearly groaned. He was so fucking out of it. Even a brief glimpse of himself
in the mirror had told him he looked feverish. His eyes were lidded and blown
wide, his skin was clammy and his face was flushed.
Deku was quick and methodic in digging under the sink to find the first-aid
kit, and withdrawing what he needed from it. He approached Katsuki with a
silent question in his eyes. Katsuki answered it by wordlessly spreading his
legs, allowing Deku to stand between them.
Something in the action made a thrill of something hot race through him,
electric and breathless.
What the fuck, Katsuki thought, dazed.
"Can you, um—?"
"Yeah." Katsuki's voice came out rough. He unbuttoned his uniform jacket and
shrugged it off, letting it bunch up behind him. Next, he fumbled with the
button of his shirt sleeve. He pushed it up past the cut.
The cool air hit his hot skin, causing him to shiver and his arms to break out
in goosebumps. Deku's fingers curled around his arm, holding it in place while
he wiped away the dried blood. His touch was like a balm. Everything was so
hot, yet at the same time, cold. Katsuki could feel himself sweating. He grit
his teeth and popped open another button to his shirt. He felt like he was
starving for something, yet he didn't know what.
This close, Katsuki could count the freckles on Deku's face. He could feel
Deku's warm, shallow puffs of breath on his cheek as he worked.
"Kacchan..." Deku broke the silence. "When did you start feeling feverish?"
"After you dragged me off running like a dumbass," Katsuki bit out. "Why?"
"So you weren't feeling sick at all until then?" Deku frowned. He kept busy
while he spoke, cleaning up the cut and then reaching for the antibacterial
ointment.
"I already told you, no," Katsuki repeated impatiently.
"That villain you were fighting, what was his quirk?"
"Hell if I know! What the fuck does it even mat—" Katsuki followed Deku's gaze
to the cut he was rubbing ointment into. Oh. "Son of a bitch. So you think he,
what, poisoned me?"
"I don't know, Kacchan, maybe it's best that you get to a hospital." Deku's
frown deepened. "Even if it turns out you're just sick, I wouldn't risk it." He
capped the tube of ointment and set it aside, then reached for the bandages. He
bandaged Katsuki's arm quickly and efficiently, with the ease of someone who
had done it many times.
Katsuki fell silent. This was the last thing he needed. For fuck's sake, it was
too early for this.
Deku finished with Katsuki's arm, but his fingers slipped on the roll of
bandages and he dropped it. It fell to the floor near the toilet.
"Ah—" without thinking, Deku set his knee on the toilet between Katsuki's legs,
leaning past him to reach for the bandages. Deku's knee rubbed into the front
of his jeans.
All of a sudden Katsuki was painfully aware of how hard he was. His hips jolted
forward without his permission, chasing the pressure and friction. A broken
moan stuttered from his mouth.
They both froze.
For a second that felt like an eternity, neither dared to breathe.
Katsuki grabbed his jacket and bolted.
"Wai— Kacchan, wait!" Deku yelped, broken from his stupor. He hurried to shove
the supplies back in the first-aid kit and push it back under the sink. He
stumbled after Katsuki, just in time to watch him slam his bedroom door shut.
Katsuki's trembling legs gave out and he sank back against the door. He reached
up and turned the lock with a click. Fuck. Fuck, fuck, fuckity fuck— his mind
was racing, drawing fast conclusions. He knew now that he'd been hit with an
aphrodisiac. A fucking aphrodisiac quirk of some kind.  He was pretty goddamn
sure the universe hated him. Well, fuck you too, universe.
Katsuki refused to admit he jumped at the sound of banging against the door.
"Kacchan, it's okay, it's just whatever quirk you were affected with!" Deku
said through the wooden barrier.
"Shut the fuck up, I know that! Get out of my house, shitnerd!" Katsuki shouted
back. His cheeks burned, this time not from the quirk he'd been afflicted with,
but from embarrassment and mortification.
"You need to go to the hospital, Kacchan! We don't know what other effects it
could—"
"Fuck off!" Like hell Katsuki was going to the hospital with a fucking hard-on!
He twisted his torso to slam his fist against the door. "I said get the fuck
out!"
"I'm not going anywhere until you go to the hospital!" Deku argued back
stubbornly. To Katsuki's chagrin, he heard the unmistakable sound of Deku
dropping down and settling with his back to the other side of the door.
"Fucker," Katsuki snarled, gnashing his teeth. He thunked his head back on the
door.
All Katsuki wanted to do was shove his hand down his pants, but shitty fucking
Deku wouldn't leave. Fuck his life. He dug his trembling fingers into the
carpet and tried to ignore the aching heat in his body, and the sweat dripping
down the small of his back.
For the next few minutes, it was quiet. Katsuki stared up at the ceiling,
counting the dips and trying not to think. His mind felt whited out. All there
was, was craving. The urge to rut into his fist, or against something, someone.
The urge to kiss, touch, fuck. Flashes of vague fantasies darted through his
mind of skin on skin, of pushing into warm heat. He shoved them away irritably.
When Katsuki realized he was rocking his hips minutely into the carpet, he let
out an irritated noise and forced himself to stop.
"K-Kacchan, I... I found a news article that talks about that villain's quirk,
but you're not going to like it..."
Katsuki started at the sound of Deku's voice. He'd forgotten he was even there.
"...What?" He grumbled.
"I-it says... um... the villain, Dirty Cupid, his quirk is that he can secrete
a liquid aphrodisiac from glands in his wrists. He must've coated his arrows
with it. The aphrodisiac effects others once it enters their bloodstream, and,
well..."
Deku fell silent. Katsuki didn't have the patience for this.
"Spit it out already, shitnerd!"
"Y-you have to have s-s-sex with someone for the quirk's effects to wear off!"
Deku said in a rush, his voice pitched high. He quickly fell to mumbling,
sounding disturbingly like a sex-ed textbook. "Although it doesn't specify what
kind, whether it has to be penetrative or simply a sexual act in general, and
if it's penetrative which partner has to be on the receiving end, and if it has
to be with the opposite sex or not, and if either or both partners have to
reach orgasm— which is really unhelpful—"
"You mean to say," Katsuki snarled, digging his fingers harder into the carpet,
clawing at fibers, "that I'm going to be stuck like this until I fuck someone?"
"Um." Deku paused awkwardly. "Y...es...?"
No fucking way. There was no fucking way. This was not how Katsuki's first time
fucking someone was supposed to go. He was supposed to seduce someone just as
hot and amazing as he was, and then blow their mind. It was never supposed to
be this soon, either, because Katsuki had more important things to focus on
than fucking. Like training to become a pro-hero. His own hand was good enough,
thanks.
He wasn't supposed to be a victim. He wasn't supposed to need someone's fucking
help!
"No," Katsuki growled. That stupid news article had to be wrong. He could fix
this his goddamn self, Deku be damned.
He reached down, body trembling just at the skim of his fingers across his hip,
down past his jeans and the waistband of his boxers. His fingers curled around
hot skin. He had to sink his teeth into his lip to keep from making any noise
as his hips reflexively rocked into his hand. The slide was rough and dry until
he reached the head, slick with precome to where there was a damp spot in his
boxers.
Oh. Oh fuck. It was more intense than just jerking off had a right to be.
Katsuki'd barely done anything yet, but his thighs were trembling and his
breathing was shallow. He rubbed his palm against the wet crown of his cock and
then stroked down, slicking the shaft.
Any reserve Katsuki was holding onto snapped. He was lost to the tight coil of
arousal in his gut, to the rush of sensation and want. He didn't even find a
rhythm, just fucked into the warmth of his fist with messy abandon. His heart
was pounding, his breathing was short and sharp.
"K-Kacchan, are you—?"
For the second time that day, Katsuki was startled by the sudden sound of
Deku's voice— faltering and muffled, like he'd clapped a hand over his mouth.
The surprise made him jerk, his fingers tightening almost painfully.
Katsuki tipped over the edge. His throat seized up and his hips snapped up
rhythmically as he shuddered through it. Wet warmth spilled into his hand. His
knuckles shot up to his mouth to bite down on, muffling the guttural "uuh,"
that escaped him. Shit. He was always too fucking vocal when he did this.
For a few seconds, everything was almost too much, yet it was soso good.
Katsuki's head thumped back on the door and he gasped for breath. The hand down
his pants relaxed, wrist aching. The one he'd brought to his mouth dropped down
to the carpet.
"D-did you just—?"
"Yeah," Katsuki panted, too dazed to remember to be pissed off.
"Oh."
The relief didn't last more than a few seconds. If anything, the frustration
hit Katsuki even stronger after that. He realized, disbelievingly, that he was
still hard. Still aching for more because it wasn't fucking enough, he was
still hot all over and mindlessly desperate.
Katsuki's hand and hips moved without permission, though he was still painfully
sensitive in the aftermath of coming. He gave up on muffling himself.
Desperate, frustrated noises spilled from his mouth. His abs tensed as he
strained towards relief he couldn't find.
"It didn't help, did it?" Deku said.
It was fucking humiliating that Deku was hearing him like this, yet most of
Katsuki was too far gone to care.
"No shit," Katsuki gritted out, voice strained. The slick noises of his hand on
himself, covered with come, were filthy. Knowing Deku was just on the other
side of the door, knowing he could hear it too... it made Katsuki's ears burn.
But fuck he just couldn't stop, even if he knew now it wasn't gonna help, he
fucking needed something—
"I could call someone—" Deku was saying something, goddamn it, why was he
trying to have a conversation with Katsuki while he was jerking off? "Um, A-
Ashido-san, or someone?"
Katsuki barked out a short, sharp laugh. "I'm too fuckin' gay for that."
There was a brief silence before Deku recovered surprisingly quickly from being
caught off-guard. "Th-then, um, Kirishima-san?"
"Fucking gross! Why would I want to fuck hair-for-brains?!"
"I-I don't know!" Deku had no right to sound so hysterical, when Katsuki was
the one suffering in this fucking mess. "Who do you want me to call, then?"
"No one, because I don't need anyone's fucking help!" Katsuki snarled. It
pissed him off even more that he didn't sound angry— he sounded breathless and
wrecked.
For a moment, Deku fell silent.
"What if it's not just help? What if someone wants to do it?" Deku spoke up
again, nervous but defiant. Katsuki could envision that familiar look. The
upward jut of his chin, his eyes brimming with tears yet burning with
determination.
"What the hell are you trying to say?" Katsuki's eyebrows furrowed.
"I'll do it, Kacchan." Deku's voice trembled, yet held firm. "If you'd want
me."
A vivid image hit Katsuki like a train. Deku underneath him, green eyes blown
wide, face flushed, his fucking curly bird's nest of hair messed up even more,
knees up on either side of Katsuki while he fucked into him hard and deep.
Katsuki's dick twitched. He swore.
Moments later, there was a click as the lock turned, and Katsuki yanked the
door open. Deku yelped and flailed, nearly falling back and hitting his head on
the floor. Katsuki caught him, wrapping an arm around his waist. Deku seized
up.
"You mean it, Deku?" Katsuki growled in his ear urgently. His fingers clawed
tightly into the front of Deku's uniform. He felt Deku shudder against him. The
boy's throat bobbed as he swallowed and nodded hard.
Katsuki wasted no time in shoving him down and climbing on top of him. Deku
stared up like a deer in the headlights. A very turned on deer in the
headlights. His hair haloed around his head on the carpet. An endearing flush
covered his cheeks, making his freckles stand out.
Katsuki grabbed Deku's stupid, messed up tie and dragged into him a hard kiss.
Deku let out a startled gasp and flung his arms around Katsuki's neck, pulling
him closer. Their lips moved together clumsily as they figured out the
mechanics.
Katsuki gave a testing downward grind that made Deku's breath hiccup. Deku
rolled his hips up in return.
Katsuki was determined not to be a victim. He was the best, even at things he'd
never done yet, and he was gonna make this the best goddamn night of Deku’s
life. He broke the kiss in favor of burying his face in the boy’s warm neck and
biting.
Deku breathed a soft ah, his eyes fluttering and his teeth sinking into his
lower lip. He tilted his head to expose more of his throat invitingly. Katsuki
fisted a hand in Deku’s hair and dragged his mouth back to his own. Deku
gasped, giving him the perfect opportunity to lick into his mouth like he
wanted to devour it. Katsuki didn't miss the way Deku's hips bucked up harder.
Katsuki smirked into the kiss. So Deku liked it rough, huh? He could do rough.
The grinding was supposed to be temporary, but Katsuki had become sidetracked,
and he couldn't bring himself to stop. The heat between them was too much, he
felt feverish. Fuck, maybe he should have done this earlier. Even their clumsy
teenage fumbling felt sinfully good to his inexperienced body. Add the effects
of the quirk on top of that, and Katsuki felt like he was drowning. Deku was
just the right amount of warm and slender but firm underneath him that he was
craving.
Deku was the exact opposite of fucking helpful in aiding in any of Katsuki’s
fleeting plans of getting their clothes off either, instead just clinging to
Katsuki and reciprocating the dry humping and kissing eagerly. He tasted like
toothpaste, and he giggled and jerked when Katsuki licked at the backs of his
front teeth and the roof of his mouth. He was responsive, but quiet compared to
Katsuki in his noises when they rocked together just right or Katsuki raked his
teeth over his lip.
Katsuki’s boxers felt gross, it was so hot he wanted to tear his clothes off
and the friction was just bordering painful, but he couldn't bring himself to
care. All he could focus on was chasing release with his hips, with his mouth
on Deku’s. He grabbed Deku’s thigh and hauled his leg up, changing the angle so
he could grind half against the curve of his ass. Deku whimpered at that.
Katsuki broke the kiss, saliva connecting their mouths for a moment. “Shut up
already. You want the neighbors to hear us, shitty Deku?” He said lowly. His
fingers wrapped around Deku’s throat, not squeezing but just resting there.
Deku swallowed. He didn't point out that Katsuki was being louder than he was.
Instead, he curled his hand over Katsuki’s and squeezed. Letting him cut off
his air.
Katsuki bit his lip hard, eyes blown wide as he slowly increased the pressure.
Fuck. Deku was willinglyletting him control the air he breathed. It felt heady,
powerful, he couldn't get enough. His cock ached.
“You like that?” Katsuki breathed in his ear, giving it an experimental bite.
He counted the seconds, making sure he didn't cut off Deku's breathing for too
long.
Deku nodded. Katsuki could feel his pulse jackrabbiting under his fingers.
“Good boy.”
Deku’s throat moved and his mouth opened, but no sound came out. Katsuki felt
him arch up and shudder violently. His eyebrows shot up and he let go of Deku's
neck.
Deku coughed and gasped for breath. He looked wrecked.
“Did you just fucking come?”
“Y..yeah,” Deku panted. His voice was rough, after what Katsuki had done. “A-
ah, stop-”
Katsuki froze, despite every muscle in his body screaming for him to move.
Shit, did he do something wrong?
“It's too sensitive, give me a second…”
Oh.
“Then maybe you should’ve lasted longer than five goddamn seconds,” Katsuki
grumbled, ignoring the fact that he had done the same thing just earlier. At
least he had the excuse that he was being affected by a quirk.
“Sorry. I can use my mouth, Kacchan.”
Katsuki stared at Deku for a moment. Fuck.His dick twitched. He stood up and
shucked his clothes at record speed. He used his shirt to clean up the mess of
come around his crotch, then sat down on his bed.
After a moment, Deku did the same, legs wobbly after his orgasm. He stopped to
fold his clothes— of course he did, because he was fucking Deku— and hesitated
like he was looking for somewhere to put them.
“Hurry up, shitnerd.”
“R-right.” Deku jumped. He dropped his clothes and moved closer, sinking to his
knees between Katsuki's spread legs.
Katsuki curled his fingers in the sheets and watched intently. His cock was
flushed and dripping. Deku eyed it with a look of determination, and leaned in
to give the head a testing lick. Before Katsuki could urge him to hurry up, he
sucked it into his mouth.
Katsuki threw his head back and moaned as he was enveloped in wet warmth. His
fingers flexed and his dick twitched into Deku's mouth. Deku wrapped his
fingers around the base to hold it in place as he slid further down and sucked.
Katsuki was losing his mind. He couldn't think. All he could do was feel. And
as Deku started to bob his head, started to stroke what he couldn't fit in his
mouth, Katsuki had no idea how it was possible for something to feel so good.
He couldn't help it. He tangled his fingers in Deku's hair, tugging it hard
enough he knew it had to sting. And he thrust into Deku's mouth. The wet slide
knocked the breath from his lungs. Deku gagged.
"Stop me if it's too much," Katsuki panted, loosening his grip on Deku's hair
to smooth his fingers over it.
Katsuki met Deku's eyes, and they were burning with determination. He didn't
pull off even though Katsuki gave him the chance. Even when Katsuki gave
another testing thrust. Instead, he reached up and wrapped his free hand over
Katsuki's in his hair, making him seize another handful.
Deku let Katsuki fuck back and forth over his soft, slick tongue, barely
letting him breathe. That knowledge drove Katsuki wild, made him lose the
tentative thread of restraint he was holding onto.
"You like it like this, don't you?" Katsuki growled. "You like letting me use
you. Fucking knew you had to be a masochist."
Katsuki's thighs were starting to tremble as he got closer to the edge. Their
eyes stayed locked together, Deku's green ones watering from the abuse to his
mouth. The boy's face was stained blotchy with pink. The tears threatened to
spill over when Katsuki rocked further into his mouth, towards the back. His
throat convulsed in another gag and he pulled back, coughing and gulping in
breaths of air.
Deku caught his breath and then went right back at it, sucking at Katsuki's
cock with frankly filthy wet noises. His hands gripped Katsuki's hips and
dragged him closer to the edge of the bed, pushing his cock further into his
mouth. Katsuki swore.
He wasn't going to last much longer. The lust quirk was addling his mind, and
so was Deku's mouth.  His filter was blown to smithereens until he was spilling
out pornographic nonsense. "Yeah, fuck, Deku, be my bitch— such a good fucking
slut for me—" Katsuki moaned and tugged at Deku's hair more viciously, rolled
his hips harder and relished in the way Deku gagged, the way those tears
finally spilt down his cheeks. "Should've fuckin' done this ages ago—"
Katsuki felt the shudder that went through Deku more than saw it, felt him
breathe a tiny little moan around his dick, and— oh fuck, he could see Deku's
arm moving between his own legs, he really was getting off on this—
Katsuki could barely fucking breathe from the way his orgasm jolted through
him, electrifying every nerve in his body, making his blood sing with fire. He
choked on an involuntary, "ah, aah, ah—" as he spilled over Deku's tongue, hips
rocking of their own accord.
He fell back on the bed, panting. Deku pulled off and coughed and spluttered,
come dripping from his mouth to the carpet. Any other day Katsuki would've
kicked his ass for that— he'd have to clean that up later— but he couldn't be
bothered right then.  Deku wiped his mouth, and then his damp cheeks. He
shakily stood up to sit on the bed, wincing at the way his knees, neck and jaw
ached.
"Did it work, Kacchan?" Deku asked in a hoarse voice, concerned eyes raking
over Katsuki. He looked like a mess. He was flushed down to his chest and
shoulders, strands of his spiky hair were stuck to his forehead with sweat, his
eyes were glassy and his chest was heaving hard and fast.
"No," Katsuki snarled, and it was almost a sob. If anything it was fucking
worse, he felt like he was dying— could that happen? Could he die because of a
quirk like this? His breathing surged harder as irrational panic set in.
Everything was too much. Even the air was like needles to his shaking,
hypersensitive body. The desperation to be touched was overwhelming him. "Make
it fucking stop, Deku."
Frustrated tears welled up in Katsuki's eyes, and that show of weakness only
made him angrier. His pride was wounded and stinging. He sank his teeth into
his lower lip and turned his head, not wanting to see the pity that he knew
he'd find on Deku's face.
Katsuki twitched as he felt calloused fingers intertwine with his own warm,
sweaty ones. A scarred palm settled against his.
"It's okay, Kacchan," Deku murmured, squeezing. "I've got you. Breathe."
Part of Katsuki wanted to stop breathing altogether just to spite Deku. Maybe
if he held his breath for long enough, he could pass out into sweet oblivion,
away from this torture.
He didn't. He closed his eyes and matched his breathing to Deku's. Tried not to
think about the aching need simmering beneath his skin.
"We should probably... have sex," Deku said tentatively, breaking the silence.
Katsuki's eyes flew open. "I mean— all the way. I guess the quirk's
requirements were as simple as that all along."
He sounded uncertain, hesitant. It made something bitter and ugly twist in
Katsuki's chest.
"What if it doesn't work?" Katsuki snapped. "What if it makes it worse again?
Don't fucking force yourself." He snatched his hand away.
Deku frowned at him. "I'm not forcing myself," he said defensively. "I'm just—
I'm nervous. I-it's not like I've done this before."
"Yeah," Katsuki sneered, "and I bet you wish it was Round-face instead of me,
huh?"
"Wh-what?!" Deku spluttered. "D-don't be weird, Kacchan! Uraraka-san is p-p-
pretty and all but she's a precious friend to me!" Deku paused as he seemed to
realize something, and then of all things, he fucking smiled. "Why, Kacchan?
Are you... jealous?"
"Wha— why would I— What the fuck, Deku?!" Katsuki snarled.
"Sorry, sorry, nevermind. I'll go get you some water." Deku darted off before
Katsuki could wipe that stupid smirk off his face.
A minute later, Deku returned with a tall glass of iced water. Katsuki sat up,
snatched it out of his hand and chugged it, the cold liquid soothing his
parched throat. When he was done he pressed the freezing glass, wet with
condensation, to his flushed cheek. It felt relieving.
He didn't miss the way Deku's eyes lingered on the long column of his throat,
and then on the little bit of liquid that dripped down his chin. He smirked.
"Lube's in the drawer, Deku."
"R-right." Deku tore his eyes away and opened the drawer, searching for the
lube. He found the bottle and settled on the bed again. He uncapped it, about
to squeeze some out onto his fingers.
"What the shit, Deku," Katsuki snapped, slamming the glass down on top of the
drawers, "that's my job."
"I didn't think you'd want—" Deku's sentence was cut off by a squawk as he was
manhandled into Katsuki's lap. His hands reflexively shot to Katsuki's
shoulders for support. Katsuki jolted as the other boy's ass rubbed against his
still too sensitive cock.
"Well, you were wrong. Give me that." Katsuki snatched the bottle from Deku's
hand and squeezed a copious amount onto his fingers. His entire dick was going
up Deku's ass, it couldn't hurt to use a lot. He brought his hands behind Deku,
using one to spread his cheeks while the other rubbed a finger experimentally
over Deku's hole. Deku jumped and tensed.
Katsuki rolled his eyes. "How am I supposed to do this if you don't relax?"
"I'm not used to s-someone touching there," Deku defended.
"Yeah, yeah, this is fucking weird for me too. Quit bitching." Katsuki rubbed
his thumb back and forth, letting the other boy get used to the sensation. Deku
took a deep breath and managed to relax. Katsuki slid a finger in. It felt
warm, velvety and tight. He could feel even the slightest twitch from Deku.
Unlike the fire and abandon he had shown earlier, while sucking Katsuki off,
Deku seemed shy and subdued now. It was strangely intimate, Katsuki exploring
inside him, their two warm bodies tangled and close. Their breath mingled.
Deku's eyes flickered like he didn't know where to look. He settled for holding
Katsuki closer, burying his face in his sweaty hair.
The action made his cock rub against Katsuki's abs, and Deku sucked in a sharp
breath.
Two fingers, now. It was quiet except for their shaky breaths and pounding
heartbeats. Katsuki took it painfully slowly, fingers rough with calluses but
gentle in their exploration. At least being thorough gave him something to
focus on besides the maddening craving to fuck. If he didn't think about it, he
could almost ignore the ache between his legs.
"Kacchan," Deku murmured, almost making Katsuki jump at the sudden break in the
silence, "I think that's enough."
"Fuck off. I know what I'm doing." ...Probably.Whatever, Katsuki didn't want to
risk Deku's ass bleeding all over his dick. As if to prove his point, Katsuki
slid another finger in and crooked his fingers. They rubbed over something.
Deku gasped and jolted.
"Fuck, did that hurt?"
"No," Deku said breathlessly. "Do it again."
Katsuki did it again. And again. And again. Until Deku was a trembling mess in
his lap, rolling his hips to get more, fucking himself on Katsuki's fingers.
His cock rubbed over Katsuki's defined stomach, smearing precome. Katsuki could
barely breathe. He wanted to wreck Deku.
Katsuki twisted his fingers deeper and mouthed at the junction of Deku's neck
and shoulder. He sank his teeth in hard, took savage pleasure in the dirty
whimper it tore from Deku's throat.
"Kacchan—" Deku gasped out, hand shooting to Katsuki's wrist and gripping it,
"Kacchan, 'm gonna come if you keep doing that."
Katsuki soothed the teeth marks with his tongue, his fingers stilling. He could
feel Deku panting, chest heaving against his own. He waited for Deku to let go
before he pulled his fingers out.
Deku pressed his forehead to Katsuki's and bit his lip. "How do you want to do
it..?"
"You choose," Katsuki said roughly. He was too turned on to think.
"Then... like this is okay," Deku said, because of course he would go for some
romantic shit like that, like being cradled close in Katsuki's lap and looking
into his eyes while he fucked him like an animal.
Katsuki shifted to get comfortable, crossing his legs. Deku moved to wrap his
legs around Katsuki's waist. Then Katsuki was gripping the base of himself and
guiding it forward, the slick head rubbing over Deku's entrance. In that
moment, Katsuki was hyperaware of everything. The sweat dripping down the small
of his back. The ache in his wrist. The sound of his blood rushing in his ears,
the feeling of it in his veins. The pounding in his chest. Deku's green eyes
filled with the black of his pupil, locked with his own. The mint of Deku's
toothpaste on his breath, the scent of his body wash underneath his sweat.
Every tingling, ecstatic point of contact between him and Deku. Deku, Deku,
Deku.
Katsuki pushed in, and it all faded to white noise. Flames seemed to lick at
every inch of his skin, consuming him. Everything was pleasure so intense it
was painful.
"Kacchan," Deku gasped, fingers digging into Katsuki's shoulders.
"Yeah," Katsuki breathed.
In this position, there wasn't a good angle for thrusting. Instead, Deku
grinded back and forth, and Katsuki rolled his hips up to meet him. It was slow
and agonizing and so, so good. Deku surged forward until their lips met, and
then they were swapping tongues and spit and breath and teeth, messy, clumsy,
too good to care.
Katsuki could die happy, like this.
Katsuki's hand slipped down until he could curl his fingers around Deku and
stroke, rewarded by a moan that he barely heard over his own muffled ones.
Katsuki didn't realize Deku was crying, until he felt the dampness pressed to
his cheek. He jerked away and froze.
"What the fuck, Deku?" He snapped, feeling the panic surge up his throat and
choke him.
"Ah—" Deku reached up and wiped his face. "I'm okay, I, just—" he struggled for
words. "I'm just so.. full. Of you," he whispered. "It feels— close. I wanted
to be close to you again for so long, Kacchan."
Deku's voice was impossibly quiet. His eyes welled up with fresh tears. "I
missed you," he admitted, his head bowing.
Fuck. Katsuki was supposed to be pissed at him, say that it was his fault for
looking down on him, and yet—
His hand found Deku's and squeezed it. He'd deny, later, murmuring a soft and
aching, "me too," against Deku's lips.
Deku shuddered and grinded harder, leaning back with his hands planted on
Katsuki's thighs. There was only so much of the slow pace they both could take.
But it still wasn't enough. They both wanted more.
Katsuki did them both a favor by gripping Deku's thighs and lifting him up.
"K-Kacchan, what—?"
Deku was interrupted by Katsuki dumping him onto the bed, head hitting the
pillow. Katsuki manhandled him until he was on his stomach. "Gonna fuck you for
real now, Deku," he declared, shuffling forward on his knees. "And I'm not
gonna play nice. Tell me to stop if you don't like it."
Deku moaned, hopelessly turned on, and nodded. He shifted onto his knees to
give Katsuki better access, and tried to push himself up on his hands to peer
over his shoulder. Katsuki grabbed a fistful of his hair and shoved his face
back down.
Katsuki fucked into him in one rough thrust, knocking the air from Deku's
lungs. And Katsuki didn't give him the chance to catch it, either. He set a
brutal pace that fulfilled both of their cravings. Hard and fast and filthy and
deep. A means to an end as they chased release.
Mindless and carnal, lost to the pleasure of their bodies, they climbed higher
and higher and higher. Katsuki gripped Deku's hips hard as he slammed in and
out. He could hear the slap of skin on skin, mixed with his panting and moaning
and Deku's muffled noises. It sounded pornographic, and it turned him on even
more.
"Kaah— Kacchan—" Deku sobbed, panting. His hand found his way under him to jack
himself off hard and fast, matching the pace Katsuki was setting.
"Deku," Katsuki growled in response. He brought his fingers to Deku's lips and
shoved them into his mouth. His fingers met wet heat. Deku's teeth scraped over
them, and then Katsuki was gone.
His hips stuttered and he lost his rhythm, starting to thrust with wild
abandon. "Fuck. I wanna come inside you, you want that? Want me to fill you
up?" He asked roughly, urgently.
Deku hummed a desperate, "mhm," around his fingers like he really did want it,
want Katsuki's come deep in him, dripping out— shit—
Katsuki draped himself over Deku's back, wrapping an arm around him and
crushing him close. He threw his head back, teeth bared in a soundless snarl
and eyebrows knitting together as he came harder than ever before. He fucked
Deku through it, and though he was lost in his own ecstasy, he didn't miss the
way Deku started to shudder through his own orgasm.
And then after a short eternity, it was over, except for the trembling
aftershocks and the satisfied glow. Finally, finally, there was relief from the
hell Katsuki had been in. He went boneless on top of Deku, hardly giving a fuck
that he was probably crushing him uncomfortably.
Katsuki laid there for a while, catching his breath and waiting for his body to
cool and his pulse to calm. Eventually, he made to pull out.
Deku's hand shot behind him and gripped Katsuki's thigh to stop him.
"Stay inside," Deku murmured. "I like it."
"Weirdo," Katsuki mumbled, but obliged. He carefully rolled them over onto
their sides so he was spooning Deku, still not pulling out. He kept his arm
around the other boy and tucked the other one under the pillow beneath their
heads. He nosed into Deku's bird's nest of hair.
They were uncomfortably sticky and sweaty, and with them cuddling it was a
little too warm, but Katsuki was too exhausted to give a shit. He was ready to
pass the fuck out.
Except that at some point Deku tensed up, and started to mumble under his
breath.
"What the hell's your problem?" Katsuki muttered. His voice was slow and
slurred, tired, but prickling with irritation.
Deku fell silent, and chewed his lip.
"It's just... I feel like I took advantage of you." Deku swallowed. "You were
under the effects of a quirk, and yet I—"
"Shut the fuck up," Katsuki growled. "I wasn't so fucking addled that I
couldn't consent. If anything, Itook advantage of you and your goddamn savior
complex—"
"But I already told you I wanted it, Kacchan!" Deku practically shouted. "I
would've wanted it even if you never were hit by that quirk!" He hung his head,
looking like he was about to cry.
Katsuki's anger died down. His hand, once again, sought Deku's. Deku tried to
pull it away at first, but Katsuki was insistent on twining their fingers
together. "Well, there you have it," he grumbled. "Both of us wanted it, and
the sex was fucking great. Which means we're doing it again sometime. Any
objections? No? Now go the fuck to sleep."
Deku spluttered incoherently. "Wh— I— Kacchan, you can't just—"
"I can and I fucking am," Katsuki said, smug.
Deku flapped his mouth uselessly for a few moments, before he snapped it shut.
He looked away. "At least take me on a date first..." he muttered.
"Sure, whatever. We'll talk more later, just sleep already." Katsuki yawned and
resumed his tired nuzzling of Deku's hair. "It's too early for this."
Despite himself, a small smile found its way to Deku's lips.
"Okay, Kacchan," he agreed, and finally permitted his eyes to close.
End Notes
     well that was one hell of a first time amiright ( ͡° ͜ʖ ͡°) look at
     kacchan busting out all the kinks after .2 seconds
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