16yo bakugou who SWEARS he’s a dominant because he stumbled across a bdsm gif once and now gets off to it.

40yo pro hero deku has to take a drink of his triple shot coffee just to handle his spitfire intern.

“katsuki, you are not a dominant. you just have no self control.”

deku’s a switch, and he has had his fair share of relationships and scenes to know bakugou gets off to it because he probably thinks it’s ‘dark’ and ‘mysterious’, but he doesn’t know the first thing about bdsm play.

“now stop messing around before i call your mother.”

deku and mitsuki were friends in middle school. he was her upperclassmen because he lived nearby and even into adult hood, they stayed friends.

so bakugou knows for a fact that he definitely would call her, right here and right now, just to rat him out.

“snitch.” he grumbled.

“besides, what makes you think that you‘re a dominant?” deku wondered.

“i took the test and that’s what it said.” he answered. “shitty deku is probably a bottom.”

“you mean the one where you have to agree that you’re eighteen or older?” deku rose an eyebrow at him.

“and i know you’re not a dominant because you think ‘bottom’ and ‘submissive’ are the same thing.”

“no fucking dominant is going to take it up the ass. that’s what dominating means, to be on top and have all the power. geeze, did you even graduate, old man?” bakugou snickered.

deku laughed.

“ah, katsuki, you’re funny.” he patted his head. “you remind me a lot of your mother. she thought she knew everything.”

“gross! don’t compare me to that old bag.” he swatted his hand away. “and what do you even know about this stuff? i bet you’re broken.”

“i can get it up.” deku defended himself, glad the door to his office was closed.

bakugou scoffed. “you’re like a forty year old virgin or something, and i doubt you even know what bdsm is.”

there’s just something about him that makes deku want to knock him off his high horse.

he’s always so smug, so sure of himself, and it gets on his nerves sometimes.

and deku doesn’t need online tests to know he can shut a brat up and make them behave.

bakugou should just ask his mother about her first boyfriend if he’s so concerned about his sex life.

“what’s the traffic light system?”

“what does driving have to do with anything that we’re talking about?” bakugou asked.

deku walked closer, watching as his intern stepped back. “what’s the difference between a ring gag and a spider gag?”

“isn’t one r-red?” bakugou stammered.

it’s cute.

he’s so flustered that it’s making deku feel a little bit better.

“can you tell me what a flogger is?” he continued, counting how many questions he gets wrong.

“a what?”

“what’s subspace?”

“that space inside of space? i’m not an idiot!” bakugou bit.

“what even is bdsm?”

“it’s just rough sex.” the sixteen year old answered. “hot sex with chains and whips. that’s it. i’ll get a cute little bottom and bounce them on my cock until they cry.”

when he has to remind himself the kid is actually serious, and not joking, it hurts.

this is probably why he can’t find many people who aren’t terrified of him when he says he likes things a certain way in bed.

because idiots like bakugou grow up thinking they’re right and scar people left and right with their twisted, inaccurate versions of bdsm.

“what’s aftercare? why is it important? what is a safeword?” deku looked down at him.

“that’s that shit—”

“wrong. wrong wrong wrong.” deku cut him off before he could even finish speaking. “arguably, the most important thing about bdsm is being safe and establishing trust.“

bakugou didn’t even realize he was backed into a corner until he tried getting away from the adult.

“aftercare and safewords are not ‘shit’. i know you are not a dominant because you are sixteen, and you don’t even know yourself, let alone how to safely engage with a partner.”

deku didn’t realize how close they were until he felt a hand push against his chest.

“g-get off—”

“do yourself a favor, katsuki, and stay away from bdsm spaces.“ deku held his hand. “i’m looking out for you. you’re ignorant, young, and naive. you’ll get hurt or hurt someone.”

“oh yeah? and what to do you know?” bakugou snapped, clearly embarrassed by his own lack of knowledge on the topic.

he’s not trying to shame him, or mock him, but tell it to him as honest and straightforward as he possibly can.

“oh, what do i know?” deku pointed at himself.

“i’ve had... three dominants and two submissives in my life.” he told him, watching as the teenager gulped. “and let’s not count my little flings. i’m more popular than you think, katsuki.”

bakugou raised his lip into a sneer.

“yet i wonder why they never fucking stayed...”

deku was taken back by his comment, and then smiled down at him.

“because it’s none of your concern.” he tightened his grip around his hand. “in fact, i don’t owe you an explanation. you should just sit down, shut up, and listen to your elder.”

bakugou rolled his eyes.

“must be a pretty shit partner if they never stay.” he snickered.

deku gets it.

he’s embarrassed. he’s feeling called out. so in return, bakugou’s trying to prove his superiority by turning it all against him.

he has been with him all his life, that’s just how he is.

“you should find a better way to deal with your inferiority.” deku let go of his hand as he spoke.

“if you know so much and you’re so amazing, why are you single, eh?” bakugou mocked. “as i thought, deku’s just sad and lonely.”

“katsuki, watch your mouth when you speak to me.”

“your stupid pop quiz doesn’t mean anything. you just want to look down on me!” he pointed. “you think you’re so much better than me.”

deku rolled his eyes.

“that’s because i am.” he turned around. “i built myself from the ground up. i went from zero to the number one hero.”

“i’m talking to you! look at me!”

bakugou grabbed his arm, and deku immediately grabbed his wrist before spinning him around.

he pinned his fist to the wall above his head, and used his other to slam against the wall beside bakugou’s head.

if it cracked, then so be it.

“what? can’t speak? what a shame... i’m even looking at you.” deku looked down at his crimson eyes.

“you talk yourself up so big, but you aren’t even done growing yet. you wanna be the baddest guy in the room, but you’re just a brat that i am itching to put in his place.”

it’s probably wrong to feel this way, especially to his friend’s underaged son, but bakugou just hits every single one of his buttons.

“i fucking dare you.” bakugou narrowed his eyes. “stupid, perverted hero, wanting to fuck everything with a pulse.”

deku licked his hips.

“i don’t have sex with people who don’t want it and don’t know what they’re doing.” he let go of him. “so you’re not on my list.”

“so i’m not good enough for you?” bakugou yelled. “you think you’re so fucking cool... prove it then, asshole!”

oh?

“so you want me to fuck you?”