It doesn't follow the manga or anime directly. If there are any unfactual things that are not in BNHA it is just to help the story make more sense. Art not mine.

THIS IS AN EDITED CHAPTER. I now have an editor so credit to GimmeDatElephant

Contains mature scenes and language.

The Slut (BNHA x Oc)

Contains mature scenes and language.

CHAPTER 1 (edited)

“Mghn… fuck… fas-faster.” I moan to the person eating me out.

She obliges, moving her tongue faster, while adding in some fingers. My hands find her hair. Grabbing roughly, I now realize how useful her horns are, they make excellent grips. Tugging slightly she moans into me, the vibrations jolting my core.

“Fucking h-hell Mina, you’re a g-goddess with your tongue” I barley spit out as I get closer to my high. With a couple more thrusts, I cum undone.

She comes up from between my legs, licking her lips, she smiles. “Thanks Hun.”

The bell rings in the background.

As I slip past her making my way to my desk I tell her, “Wait until lunch, I can’t wait to return the favor.”

~~~

Hi I’m Aizawa Kateki, everyone calls me Kat, I’m Aizawa Shōta’s little sister. When our parents stopped caring for me, he took on the responsibility, legally gaining custody over me. I’ve lived with him and his boyfriend, Yamada Hizashi, since I was 9.

My quirk is Nullification. I can basically nullify things. If a car was going to crash into me I could stop it, not that I would. Or if a person was fighting me and I was too lazy to fight back I could just freeze (nullify their movement) them in place and walk away. It applies to quirks, elements, time, movement, aging, peoples body’s, as well as many other things. So far the only limitations I’ve found is if I use my quirk too much my body slowly stops functioning, and I have to either be looking at or mentally picturing my target. 

People tend to like me… I think? Honestly I don’t know, I’m not a mind reader. I mean, people are sceptical about me because of the rumors, but once they get to know me they tend to be friendly.

The rumors, wow there’s a lot. The main one is that I’m a slut. I’m not gonna deny it, I most definitely am a slut to the highest degree. The other ones consist of homophobic things, I’m pansexual,  and comments about my looks.

But the one that I hate the most is that people assume that because my brother is a "Pro Hero", I must have everything handed to me on a silver platter, which is not true. Shota is very ‘do it yourself’ when it comes to me doing things. Yes, he is always there for me, but if it’s training or school, or really any day-to-day, ordinary thing, I was taught to do it myself. Being self sufficient is like, our house motto. 

Ever since I was little I found people’s bodies and quirks fascinating, so it’s no wonder that I wanted to be a doctor when I was little. Then, when puberty hit and my sexual urges started happening, I realized I didn’t want to dissect or fix the body; I wanted to see and, more importantly, feel how it reacts to certain things. This led to sex, and experimental things, then into a "sex addiction", and now into the title: The Slut. Then when I was 11, I saved a mother and her newborn from a moving car, I didn’t realize until then that I loved the rush of saving people, of being in dangerous situations.

So that’s when I decided I wanted to be a hero… who just so happened to have a lot of sex.

I’m sitting in my seat, number 19, in the very back. Glancing at the desk Mina and I occupied earlier, I realize it was Iida’s. RIP Iida. Looking to the front I see my brother saying shit about heroism. Shouldn’t heroism come naturally to real heroes? Why the fuck should they waste time teaching when I could be sleeping or fucking. Sighing in boredom, I let my mind wander, I remember a conversation with my brother.

~flashback after bomb bitch is saved~

“KAAAAAT. SHŌTAAAA. COME GET BREAKFAST, SCHOOL STARTS SOON.”

Crawling out of my blanket cocoon, I curse Hizashi under my breath. Grumbling and bumbling I slip to the floor, rolling across it to my closet. I realized I was too lazy to change last night and am still in my uniform, oh how convenient! Rolling over to my door, I open it at the same time as my brother. 

“Gomorng (good morning),” I say

“Wha goo bo ti (what’s good about it)?” he responds 

“Is somtin norm pep say (it’s something normal people say)” I roll to the stairs.

“Sin whe yoo nom (since when are you normal)”? he replies crawling behind me.

“Fu ooff-mph (fuck off),” I say, rolling down the stairs. He proceeds to crawl down after me and we make our way to the kitchen. 

“Good morning beautiful, how’d you sleep? I got you both bowls of cereal and cups of coffee.” Hizashi says. Mumbling thanks, I stand up for the first time today only to plop down in a chair. Inhaling my cereal and guzzling down the coffee, I start to feel more... human? Then I remember that we’ll be moving into the dorms soon, after the whole attack, kidnap, and rescue vendetta everyone feels it’s necessary. 

“Hey bro?” I ask. “Can the walls in the dorms be soundproof?”

He looks at me, he knows why I’m asking, but he still mumbles a "Why?"

“Well, we may be a close class, but living together is a whole other story. We might want privacy or quiet, and if everyone can hear everyone and everything, that will never happen. It makes it so we can have private discussions, quiet nights, and make some noises that others don’t want to hear go unheard.” I try selling my idea to him.

He sighs.

“I’m only going to say yes, because either way these unwanted noises will happen, and you’re right, I dont want to hear them.”

I give a thumbs up in delight.

He continues, “But that means that no other ‘unwanted noises or activities’ should happen during school, since you have all night to do them.”

I sigh, shaking my head. I finish off my cereal, and head towards my already packed bag.

“Sure Shō, whatever you say.”

~ flashback over~

I guess I broke his one rule.

Oh well, now it doesn’t matter, I’ve already broken it. It’s only 11:15, I still have 45 minutes until lunch. Looking to the front, I realize my brother's not there anymore. Glancing to the floor, I know why; We’ve been given another free period. 

I hear yelling from that fucking Pomeranian, his ego must’ve been insulted again. How unfortunate for us to have to listen to him yell. After a good minute where he doesn’t shut the fuck up, I casually nullify his voice box. Now he’s silently yelling, it’s nice. Laying my head down I gotta take a nap.

All of a sudden I'm being lifted up, out of my seat and thrown over some brute's shoulder. I know it's Bakago's, mostly because people are yelling at him to put me down. I assume he flips them off cause Iida starts freaking out about rude gestures. Looking at my brother to see if he'll stop this nonsense and let me sleep, I'm disappointed to see him with a look of pure amusement, as though I'm not being carted off by Boom. 

As I'm hauled down the hall, I realize I'm being taken to the dorms. Too fucking tired to nullify his body, I let him take me there. Maybe I can slip away and sleep in my bed. Sadly, while I was thinking this we arrive at his room. Unlocking and opening his door, he sets me onto the bed. Closing and locking the door, he faces me.

Angrily, he points at his mouth.

I stare in confusion.

"What…? Use your words, I don't read minds. Or lips."

He glares harder, and then I realize I'm still using my quirk on him. "Oh shit, sorry. I forgot?" It comes out as a question, so I seemed less sincere. I deactivate my quirk. Thinking, I quickly reactivate it. "Promise you won't yell? Please?"

He nods his head.

I deactivate my quirk for real this time.

In a reasonably volumed voice, he rants, "Fucking hell, I hate you. That was awful, don't you ever do that again, you fucking understand, you shitty repealing asshole?"

As he's blowing off steam, I motion him closer. When he's in arms range, i snatch his arm. 

"Kat~su~ki, I'm tired! Can I pleeease cuddle you?”  I whisper in his ear. I don't wait for his answer though, and scoot over, pulling him down at the same time. I use him as a body pillow. 

"Wake me up at lunch." With that I drift off, thinking of his caramel scent.

~~~

I wake up to the chattering of people

Where the fuck am I?

Lifting my head off of a warm, squishy-hard… thing, and looking around, to I realize I'm in the cafeteria. I take my head off of, oh. Kirishima's shoulder. He glances at me, grinning his shark toothed grin.

"G'morning princess." He hands me some of what I assume is his food. I accept it and grin back. 

"Morning to you too, that was very manly of you, letting me rest on your shoulder." I nudge him. A light blush spreads across his cheeks. 

"Really? You think? Bakubro wanted to leave you behind, but I told him you had to eat." I nod and start nibbling on the food he gave me. 

"Oi, shitty hair, don't go blaming shit on me. It's that fuckers fault she fell asleep." He reminds me of a rooster who just got a feather plucked, cocky and indignant. 

"Oh, Kat, we should go look at those clothes I mentioned before." Mina interjects into our conversation, winking discreetly at me.

I hum in agreement, pushing my seat back and standing. She takes my hand and leads me off, and I spot Kaminari, who winks at us. 

Walking down the hall, we pass a bunch of doors. At a random one I push her in. It was empty, and that left us completely alone.

I walk in first, Mina trailing in after me, shutting the door behind her. Quickly, I pin her and catch her lips in mine. We heatedly make out, tongues playing with one another. Her hands tangled in my black hair, pulling me closer, deepening the kiss. My hands roam lower, over her skirt, to the edges, her soft thighs before slipping under her skirt. I brush my fingers lightly on her outer lips, over her underwear. She moans into my mouth. Moving up a little, I play with her underwear band, pulling on it slightly, before letting it snap back onto her skin. She jolts, and I move on from her mouth. 

Leaving a trail of kisses down to her collar, lightly biting it before I kneel. Pushing her further against the door, so her back is flush against it, I tug her underwear down to her ankles, pulling a foot free and propping her leg on my shoulder. I kiss my way up her leg, slowly working my way up her thigh. I drag my lips up and up, teasing lightly, before pulling back and kissing back down, taking my time, savoring the moment. Eventually, Mina tells me to stop teasing, and I cave in, pressing a small kiss to her inner thigh before making my way back up. When I get to her core, I tease it a little, causing her to let out breathy moans. 

My mouth circles her clit as I suck harshly. Her moans escalate, I dip down deeper to her pulsing core. As I work my tongue in her, she grabs my hair moaning, "I'm almost there".

"Mn-mghn, oh cu-uming." She cries, almost immediately I feel warm milky liquid on my face. Licking it up and slightly cleaning her off I stand. She giggles.

"We should do this more often," she says.

"Ya, it's a great way to relax in the middle of school, very refreshing." I flashed her a grin and gave a wink, fixing her up by straightening her tie, kneeling and pulling her underwear up, and adjusting her skirt to sit right.

Now that we’re presentable, we leave the classroom. I walk down the hall with her to our next class. We have Foundational Hero Studies, my favorite class. All those revealing hero costumes, ah, amazing. Just picturing it, I feel lighter. Skipping down the hall, I smile to myself, the rest of today's gonna be interesting, I can just feel it.