Initial BakuDeku, cock warming, gangbang, bondage, chastity
It started in their second year of middle school. Bakugo corners Izuku after school and telling him to get on his knees, because if he was worthless in one way Bakugo would make him useful.
It's sloppy, it makes him cough and sputter and gag, but Kacchan lets him be useful! So Izuku does his best and is rewarded with Katsuki's cum.
Sometimes, Katsuki makes him kneel under his desk and just hold his cock him his mouth.
Katsuki freezes, staring down at Izuku. After a moment, he orders Izuku to turn over.
Izuku responds so beautifully, trembling, sobbing, clawing at the mattress and arching his back as Katsuki lays posessive bites across-
"Alright. You're mine, then." Katsuki declares, and it makes Izuku's belly go warm.
Katsuki still loses to Todoroki, but he comes home and wrecks Izuku into the sheets in frustration.
The Spring Tournament still happens, but Izuku, quirkless and unable to keep up, drops out without any bitterness.
only to be caught off guard as the Bakusquad drop into the seats around him.
So, embarrassed, all he can squeak out when asked about his and Katsuki's relationship is
"I'm- um- Kacchans!" before burying his face in his notes.
Katsuki, of course, blows up at them, but Izuku is fascinated to see that there's no /real/ anger behind it.
Katsuki listens as Izuku chatters, giving him information on everyone who survived the race.
Which, was kind of hot, honestly, but also not going to be very pleasant.
When Izuku goes to make himself cum, Katsuki bats his hand away, telling him he doesn't get to cum-
They come out of the bathroom and Kirishima is there, cheeks red, and Katsuki demands to know what the fuck Kirishima was doing.
Izuku turns so red he think he might pass out, but Katsuki gives a startled, sharp laugh. Kirishima grins at the both of them, but then there's the call for everyone-
He has to take five minutes to breathe, forcing himself to calm down. He can't go back out with a raging boner. Once his heartrate slows, he walks back out, ass clenching, hyperaware of any-
The match starts, and Izuku forgets about it, getting caught up.
He finds Todoroki in a standoff with his father, and butts in, forcing his knees not to shake. Todoroki and Endeavor are both taken aback, but Endeavor lets it go, turning away.
Todoroki is alarmed at Izuku's behavior and helps Izuku into a locker room.
Izuku hops to his feet and gives Todoroki a smile.
And he hurries off after an impatient Katsuki as-
"The fuck were you doing?" Katsuki asks. Izuku slowly explains about Todoroki and how bad he feels that Todoroki isn't using his whole quirk- like he's being rude to everyone else for trying so hard.
"I was." He murmurs. "If you beat him and he's only using half his quirk, that's not fair to you."
Katsuki wins. Todoroki uses his flames at the start, but then they sputter out. Katsuki is /pissed/.
There's a surprised gasp from the doorway as Denki steps in, and Izuku hides his face in Katsuki's shoulder.
"Wait-!" Izuku gasps, and Katsuki goes still. "Hold on- Kaminari-kun- sorry- can you-"
A burning, furious question is in Katsuki's gaze as he stares at Izuku.
"I can't get his mask off-" Izuku begs, embarrassment in his gut. "Please-?"
Katsuki gave a wordless grunt and jerked his head for Denki to come over. Denki scrambled over, finding the mask and working at the release.
"I'll go-!" Denki says starting to leave, but Bakugo snaps
"Stay!" and Denki freezes. "Deku, I can feel the way you're fucking tight against me." Katsuki growls. "You want-
Izuku gasps, a shudder going through him, and Denki's eyes are wide. Katsuki hauls him around, down to the floor, shoving him to his knees and sinking his cock into Izuku, one hand in his hair to keep him up as he-
Denki's eyes were wide, his face red, but he watches. His cock getting hard in his pants, he watches as Izuku moans and squirms, face red.
"Pickachu, get your ass over here and fuck his mouth." Katsuki orders.
"Oh, /fuck/." Denki groans, Izuku's experienced mouth sucking him in and working him over.
Denki watches with a fascinated expression. After a moment, he makes an awkward motion-
Izuku almost can't believe that happened, but he doesn't say anything as he gets dressed again, letting Kacchan fume (in an admittedly less feral way, now that's hes gotten some of it out).
Izuku starts hanging with Bakusquad at lunch, fitting in like he belongs there. He starts getting invited to hang out with them outside of school, hanging at each other's houses.
So, Katsuki decides to lock him up.
He puts Izuku's cock in a cage to stop him from jerking off on his own.
Of course, this escalates.
They, of course, are not ignorant to the nature of Katsuki and Izuku's relationship.
Izuku is flustered with every touch, casting glances at Kacchan, who- to Izuku's confusion- is smug everytime he sees Izuku get embarrassed.
But Kacchan's not mad, so Izuku just flusters and lets himself get pulled along.
Izuku puts the collar on.
"Good boy." Katsuki says.
To his surprise, they don't do anything right away. They sprawl out in the living room, just playing games, and the only unusual thing is that Izuku sits at Katsuki's feet, resting his head on-
Sero proproses strip Mario cart, breaking the weird tension in the air. Mina whoops and grabs the controller, proceeding to /wreck/ everyone until they're left in their boxers.
Kirishima wins, triumph making his cheeks red.
As he pulls out Kirishima's cock and takes it in his mouth, he can't help but note-
"Oh my god." Kirishima's head drops back against his chair as Izuku lets the tip of Kirishima's cock press into his throat.
Kirishima's hands were clutching at the arms of the chair, trying not to grab Izuku's hair.
Kirishima looked doubtful, so Katsuki snorted and stood up. "Deku. Off." He said, and Izuku pulled back, blinking up at Katsuki.
"Kacchan?"
Katsuki sunk his hand into Izuku's hair and shoved him down onto Kirishima's cock.
Then Katsuki began to move his head.
Katsuki shoved Izuku to the hilt as Kirishima moans, deep and rough, and Izuku swallowed down the-
Katsuki forces him to stay there for a minute, milking Kirishima's cock, before yanking him back.
Kirishima's looking at Izuku with something that's distinctly awed and fucked-out. Izuku gives him a messy grin.
"Thanks, Kiri-kun." He croaks,
"You see?" Katsuki drawls. "Fuckin masochist /likes/ it."
"Oh my god, Katsuki-kun, you're so lucky!" Mina exclaims. "You get him /all the time/?"
"Of fucking course I do, dipshit, he's mine." Katsuki snaps back.
The rest of the night passes in a haze of getting passed from person to person, sucking everyone off in turn, or in Mina's case, pinned to the floor as she rode his face.
"Alright, Deku, down, my turn." Katsuki said, and Izuku eagerly sprawled out on the floor, wiggling his ass a bit as he shifted into place.
"Fuck-" he moans, face flushing as he sees everyone's hungry gazes watching him.
"Yes-" Izuku moans, his cock throbbing from where it's locked in the cage, having been aching all evening and desperate to get hard.
"Shit, you don't let him cum, Bakugo-kun?" Sero asked.
"Fuck no." Katsuki grunted, sinking a hand into Izuku's hair and yanking his head up, using it as leverage to fuck into Izuku's tight, warm hole as Izuku moaned roughly. "He has to /earn/ that fucking shit."
"Come on, Deku." Denki slid to his knees in front of Izuku, grinning as he slipped two fingers into Izuku's mouth, giving him something to suck on. Izuku moaned helplessly. "Don't you wanna make-
Izuku gave a desperate little keen, trembling and bucking back into Katsuki, who gives a bitten-off curse, hands going tight on Izuku, little crackling pops bursting from his hands and singing Izuku's skin.
"There's a good boy." Kirishima grins. "Look at that!"
Denki's hand found Izuku's caged cock and closed over it, fondling it gently.
Bakugo pants, looking up at everyone.
"/Thank you/-" Izuku gasps, and his cock is /throbbing/ now, aching from Denki's gentle fondling and knowing that he'll get to cum. "Thank you, Kacchan, thank-"
"Shut up, Deku." Katsuki gave him a little shake by the hair-
"Step on his cock!" Mina grins wickedly.
"Could just blow him." Kirishima offers, blushing faintly.
"Make him hump your leg." Sero drawls, leaning back with a wicked grin.
"You haven't gotten to cum in a while, Deku." He growls. "Sounds like it's time to make up for it."
Izuku whines helplessly.
Izuku stays hard, so they let Mina go, who grinds her foot down on his dick as he sobs, eyes rolling back from the ache of it, but her foot slips and shoves against his balls and he's /gone/, more cum splattering free.
"You can do it." Sero promises, starting to rock his leg up a bit. "Come on, Midoriya-kun."
"Hey, /good/ boy." Sero pets Izuku's hair. "Kirishima-kun, your turn!"
Izuku rose to his feet, panting, and stepped over, all but collapsing onto the couch, straddling Kirishima's legs.
"Please." He whined, arching his back as his hands tugged at Katsuki's tie, still holding firm around his wrists. "It's- it's too much-" He gasped.
"Kacchan, please." He arched up, hips fucking up into Kirishima's hand and then flinching away, Kirishima's calloused hands moving smooth and steady. "Please." He begs.
"Good boy, Midoriya-kun, well done!" Kirishima breathes. "Look at that, good job."
Izuku swallows thickly, dazed and half-way to unconciousness from the overwhelming
But still-
"Kacchan?" Izuku croaks, blinking through his wet gaze to look up at Katsuki.
"Yeah, Deku?"
"You too?" He asks faintly.
"Hey, who wants to hold him?" Katsuki asked casually as he put Izuku-
"Easy, Izuku-kun." Mina pet his hair as Izuku shook, soft whines falling from his mouth. "Bakugo-kun's gonna get you there, yeah? Gonna make you cum-
"Come on, Deku." Katsuki growled, fucking hard enough into Izuku's soft, puffy hole to rock Mina back. "Cum already, you fucking nerd."
Izuku trembled and went tight around Katsuki,
Then Katsuki buried in deep and heat pooled in Izuku's gut as Katsuki filled him up again. Izuku went limp, limbs trembling and shaking, gaze unfocused and mouth slack.
"Fuck, did we break him?"
"Izuku-kun, hey. You in there?" Hands gently petting over his forehead. Izuku keened softly, only to gasp as Katsuki pulled away, pulled out.
"Yeah, let's get him to bed."
Hands help him up and he stumbles to his feet, legs weak.
A warm body presses against his back and he smiles, slow and content.
(For now. I may add more scenes in this universe later.)