So I've seen a lot of comments with people simping over Kaida so this chapter is for you. 😂 I'm going to make a male reader too which will be basically the same but with fairly big differences in the story.
Also, let's say the soulmate chapter didn't happen. And Kaida is straight but for the sake of this chapter she's bi.
Ah and Kirishima gifted her the shark plushie instead of her buying it. We're also assuming you're shorter than her.
This is before 22.) Split Personalities

One-shot

"I have an announcement to make," Aizawa sighs, already annoyed with this day. "We have a transfer student from Shiketsu who'll be joining this class from here on. Please welcome (L/N) (F/N)."

You enter the room nervously, keeping your eyes to the floor as you walk to stand beside Aizawa's desk.

Kaida's head is propped up on her fist, looking out the window. She glances at you before rolling her eyes and looking back out the window.

"Hi, I'm (L/N) (Y/N)... Uh... oh! My quirk is (quirk and explains it)... It's nice to meet you all!" you say with a quick bow.

"We've brought in a new desk by the window," Aizawa says, pointing in the direction.

You nod, making your way over to the window. "Uh, hi!" you greet your ash blonde seat mate who scoffs and turns her head to Aizawa. "Okay..."

"You can introduce yourselves to your new classmate when class is over," Aizawa tells the excitable class. "It's time to start."

~~~

Lunch rolls around and a sparkly blond guy immediately pulls you over to his desk. That's where everyone crowds around you and begins to introduce themselves.

"Hi! I'm Ashido Mina!"

As the class introduces themselves to you, the twins are getting their things sorted before getting up and heading to the door.

"Oi, newbie. Get the fuck out of our way before we make you," Kaida growls.

"Oh, sure! Sorry!" you squeak, moving to the side a bit scared.

Kaida scoffs along with her brother as they shove by you and out the door.

"And don't get in our fucking way, you extra! We're going to be the number one heroes," Katsuki adds as he slams the door shut behind them.

You blink at the door in stunned awe for a few seconds at the narcissisticity and overconfidence. "Wow... So who are they?" you mumble.

"Ah, they're the Bakugo twins, Bakubabe and Bakubro," Mina speaks up happily. "That's what we call them to differentiate them. They're actual names are Bakugo Kaida and Bakugo Katsuki."

"Yeah, don't pay them any mind," Uraraka says. "They're like that to everyone. They really only care for each other and occasionally tolerate their little squad."

"Little squad?" you mumble confused, furrowing your eyebrows.

"Ah, we call ourselves the Bakus squad!" Kirishima answers, pointing out the little group of them.

"They're the only ones stupid enough to confront them," Shoto speaks up. "According to Kaida."

"Oh, don't act like you aren't her best friend," Mina scoffs lightly. "You're the only one she allows to call her Kaida."

"The only reason I call her by her first name is because she told me to," Shoto responds.

"That's cause she likes you!" Kirishima responds with a grin, throwing an arm over Shoto's shoulders.

~~~

"WHAAAT!? OUT OF ALL THE FUCKING DORM ROOMS SHE HAS TO BE RIGHT NEXT TO MINE!?" Kaida shouts.

"Yes, and you will show her there," Aizawa grunts, rubbing his temples. "I don't care how much you fuss. I'm not changing my mind."

"I don't really mind. If she really doesn't want me–"

"No," Aizawa cuts you off. "You're gonna be next to her, and that's final. I don't care how much Bakugo hates it."

Kaida crosses her arms. "Tch!"

School is over, and Kaida was designated as your escort around the school.

"Ha! Sucks for you!" Katsuki laughs out at his sister. "See ya!" He leaves the room in amusement.

Aizawa gives Kaida a warning look before leaving.

Kaida's right eye twitches. "I'm gonna sucker punch that asshole..." She gives a long annoyed sigh. "Whatever. Come on, loser. I don't have all fucking day to wait on you."

She heads out the room with her bag slung over her shoulder as she leaves the room. You shuffle off behind her with your own things, following her to the dorms.

"So, uh, I'm–"

"Don't bother introducing yourself, I'm not going to remember it. I heard your fucking name once already, and I don't care to hear it again," Kaida cuts you off. "I don't have time to remember something so pointless." She throws open the front doors of the dorms and lazily points out everything. "Common room, kitchen, bath, laundry, boy's dorms, and girl's dorms over here." She leads you upstairs and to your room. "Here's your room. The rest is up to you." Kaida lazily waves behind her as she disappears into her own room.

You blink. "Alrighty then..." You enter your new room and begin to unpack everything you brought.

~~~

After you finally finish unpacking and figuring out where you want everything, you slump back onto your bed for a few minutes of rest.

A knock.

You sit up and sluggishly walk to the door to find Mina behind it.

"Hey! How about you join the girls for some girl talk to tell us more about you and introduce ourselves more?" Mina asks.

"Oh, okay! Is... my, uh, neighbor gonna be coming?"

"Bakubabe? Probably not. She comes sometimes, but it's usually cause we drag her there," Mina answers.

"Oh, then lead the way!"

Mina leads you down to the common room where the other girls of 1A have already gathered on the couches.

"Ah, (L/N), right? Glad to see you accepted our invitation," Momo says then introduces herself again.

The other girls introduce themselves again too. They knew learning the names of twenty new people was difficult.

They then tell you stories about the class and each other as you share things about yourself.

The conversation about boys does eventually come up, ending up with you revealing your sexuality. You always liked to be up front about not caring who'd judge you.

"Cool!" Mina explains. "Then tell us which of us you think is hottest!"

You sweatdrop with a light chuckle.

"Mina! You shouldn't just ask that! It's kinda rude for someone you just met," Jiro says.

"Oh, sorry."

You shrug. "I think all of you are hot."

Mina grins with a wink. "We are, aren't we?"

The others laugh as the conversation moves on to something else.

...

It's been a few weeks since you've arrived, and it seems that you've been somewhat sucked into the Bakussquad. Dragged by Mina and Kirishima for the most part.

You've gotten closer to your classmates and squad. Observing enough that Mina and Kirishima most definitely have something going on along with Kaminari and Jiro. Then the completely obvious Uraraka and Midoriya. You thought it was annoyingly cute because of how oblivious they all are.

You had your eye on someone you probably shouldn't have. Bakugo Kaida. The most hardheaded mean girl in the class that hates everyone but her twin. But you watch her more than you care to admit, realizing that she's a lot more soft than her brother. Others would say you're crazy, but you've seen it.

The only other person that agrees was Kirishima as he's closer to her than anyone else. He and Mina know you have a crush on her. Kirishima hasn't told you, but he knows that you do have a chance. You just have to make it a little more obvious.

He likes to play cupid. Another reason why him and Mina are perfect for each other. She does exactly the same thing. The amount of times the two team up to get you and Kaida alone together is ridiculous. It never succeeds though as someone always unknowingly interferes.

But Kaida is smart. She's observant, and she realizes things before anyone else. She realizes what the two cupid bimbos are trying to do but didn't know why.

Until recently.

Kaida knows people. Sadly. But she also knows how to corner someone.

Which is why you're currently in the predicament you're in.

Kaida traps you between the wall and herself with her hands leaning on the wall behind you. She grins, leaning down closer to your face. "A little birdie told me that a certain someone has a little crush on me." She adjusts herself to lean on only her left hand. She takes her right and runs her finger under your jawline, heading to your chin before grabbing it and forcing you to look up at her. She rubs her thumb along your bottom lip with an amused grin as she watches your face begin to flush as if you're expecting something. "Quite eager, aren't you?" She pushes herself off the wall, watching you embarrassingly slump to the floor with your hands over your face. Kaida let's out an amused laugh, stuffing her hands in her hoodie's pouch as she walks away.

...

The next few days, Kaida continues to tease you when she finds you alone and acts like she's never done anything when around others.

But she only does it when you're actually alone and not when you're trying to be alone. Something you often try to do, so she'll come tease you. Cause you like it. Of course you do. You're getting attention from your crush.

Of course, Kaida realizes that, and she doesn't do it when you're purposely alone. She likes catching you off guard. It's all a big game to her to watch you suffer.

She'll even deny it when you bring it up. Saying something along with 'You going crazy or something? Imagining me doing that cringy shit to you? To you of all people?' She laughs. 'Freak.'

Does it hurt? A little. Did you start thinking you were actually imagining it? Sometimes. Dreaming of it? Absolutely. Daydreaming about it? Again, absolutely.

Then Kaida makes fun of you cause she can see you daydreaming in the middle of class. She does sit right beside you after all.

...

The sound of a door opening and closing wakes you up. You check the time to read 2am. You groan and try to go back to sleep, but curiosity wins. You get up, quietly shuffling to the door of your room to unlock it and peek out.

"Bakubabe?" you whisper upon seeing her form. You step out into the hallway. "You okay?"

You see Kaida stiffen, squeezing her pillow and shark plushie tighter. "F-Fuck off, newbie."

You blink at the broken tone in her voice. "Where are you going so late?"

She whirls around. "None of your-your fucking busi-business! Just go back to bed! You didn't see anything, got it?"

You're quick to notice her puffy eyes and the tears dripping down her face. You're now completely awake. "I'm not gonna act like I don't see that you're crying. What's wrong?" You take a step closer to her.

She flinches back. "No-None of your business. I'm going to my brother's room."

"I'm already awake, and I don't think your brother would take too kindly being woken up..." You wince before giving your suggestion. "You... can stay with me in my room... if it makes you feel any better. Oh, I can make you some cayenne lavender chamomile tea. You drink that to go to sleep right? I brought some into my room cause I was curious how it tasted."

Kaida scoffs, shoulders slumping. "Fine. But if you tell anyone about this–"

"You'll kill me. Yeah. Yeah. Come on," you say, rolling your eyes.

"Fuck you."

You grab her wrist and tug her into your room all the while your heart is totally beating out of your chest. You're bringing your crush into your room. Thoughts begin to race in your head. Is there underwear or bras laying around? What about trash? Oh fuck!

Kaida shuffles to your bed, immediately shuffling under your covers. She moves your pillow to the side to put hers down as she squeezes her shark plush.

Cute!

You make the tea as fast as you can then tentatively slide into the bed beside her. "Here, hopefully I made it up to your expectations."

She sits up and gently takes the cup from you, slowly sipping a taste. "You didn't put enough cayenne in it."

"I'm sorry! I can add–"

"But it'll do."

You become silent and just watch her drink her spicy tea. "Um..."

"Stop fucking staring at me. It's creeping me the fuck out."

You quickly look away. "Sorry."

She glances at you, though you can't tell. She internally sighs, feeling herself calm down. "I needed this. ...Thanks... or whatever."

You brighten up, smiling at her. "You're welcome!"

She glances away as her cheeks tint pink, covering her face with a sip. "You seriously get that happy when I say thanks? Fucking weirdo."

"Of course it does. The great Bakugo Kaida, the most hardheaded asshole, baddest explosion queen, and the most gorgeous and strongest future pro hero, thanked a lowly peasant such as myself? It's fantastic," you jokingly respond.

She chuckles into her tea. "And don't fucking forget it." She becomes silent as she somewhat closes in on herself. "I... had a nightmare. I usually go to my brother's room."

"Well, you can come to my room from now on."

"You'd like that, wouldn't you?"

You ignore her snarky remark and continue. "I'll make sure I stock up my room with your tea from now on then. And... you can talk about it... if you want."

"Fuck no."

"Alright... well..." you yawn. "I'm gonna head back to sleep."

"Why?"

You look to her. "Huh? Cause I'm tired?"

She scoffs. "No, dumbass. Why are you being so nice to me? I've been such an asshole to you."

You give a soft smile. "Well, because there's more to you than just being a snarky asshole. Well, and the fact that I have a crush on you so... but you knew that."

Kaida's face flushes. She knew you liked her but never thought you'd admit it so casually. "You–" She begins to cough, swallowing her tea wrong.

You quickly start to pat her back as she clears her throat. "Better?" you ask after she's done.

She nods, quickly finishing off her tea and putting the cup down on the nearby table. She throws your covers over herself, clutching her shark and burying under the covers. "Goodnight."

You laugh, easily realizing she's flustered and getting under the covers yourself. "Goodnight."

That's when you decide that you're most definitely going to catch her off guard. By pushing/flirting back.

...

After that night, Kaida leaves you alone for a few weeks.

But she was back to her usual self, teasing you when alone. She actually found you when you were trying to be alone, and she took the bait.

"Trying real hard to be alone, huh?" she grins, trapping against the wall again.

"Obviously," you respond, catching her a bit off guard. "You have been avoiding me lately." You lean up closer to her face, making her back up a bit. "Embarrassed?"

She glares, grabbing your throat and pushing you back against the wall. "Grew some balls, huh?" She smirks, leaning closer.

You stand up on your tippy toes to give a quick kiss to her nose. Her eyes widen as her whole body freezes. You take her momentary frozen self to escape.

Completely breaking down into a flustered state once far enough. You slump to the floor, curling your knees to your chest and quietly squeal. "Did I really just do that?! AAAHH!" A big smile is plastered on your face.

Mina and Kirishima end up coming from around the corner, seeing you.

"(Y/N)? You okay?" Mina asks concerned, bending down to your level.

"I-I just kissed Kaida on the nose..."

Mina squeals. "You didn't!"

You look up at her. "I did!"

"Aaah! Okay okay okay! Tell us everything!" Mina squeals.

...

Another school day over, and you're on your way to your dorm room. Once again alone, as most of your classmates decided to go train or leave earlier.

"Hey, new chick!"

You turn around at the gruff voice to find Bakugo. "Bakubro?"

He scoffs at the nickname. "What did you do to my sister?!"

"Me?" You chuckle. "Your sister has been cornering me for almost a month! I'm just making it even." You shrug. "Why?"

"She's-She's acting like a fucking bimbo! Always lost in dreamland!"

"Wait, really?" you ask a bit shocked. "I don't think that's my fault then."

"The fuck it is!"

You sigh and shrug, waving him off. "Whatever helps you sleep at night. I got homework."

"I'm not done talking to you!"

...

Mina snaps her fingers in front of Kaida's face. "Whoa, she's really zoned out there. It's kinda creeping me out with the scowl on her face. She's been glaring at her food since we got here."

It currently lunchtime, and the Bakussquad is at their usual table. You were taken by the Dekusquad by Midoriya who wanted to learn more about your quirk.

"She's been like this for a week," Sero comments amused, looking to Kirishima and Katsuki. "She tell you anything?"

"No," the two respond.

"Ask Todoroki," Kaminari suggests. "He'd probably know."

Kaida cuts off all conversation when she gives an amused huff, looking up with a grin. "Alright."

"She spoke!" Kaminari and Sero shout.

"Alright, what?" Katsuki huffs.

She looks up at them. "I've decided."

"On what?" Sero asks.

"You'll see," she answers, getting up and walking over to Deku's table. She interrupts you mid conversation, pulling you out of your seat by the back collar of your uniform.

"Wha–?! Bakugo! You can't just—! What are you doing?!" you huff as you're pulled from your seat. "Where are we going?!"

"Just come with me."

She pulls you out all the way into the hall then even further into an empty classroom. Kaida shoves you back to sit against a desk, trapping you in with her arms leaning on the desk on either side of you.

"Baku–"

"What was with the nose kiss thing?"

You blink. "Wait, that's what's been throwing you off this week?" You giggle. "That's actually really cute–"

She forces her hands down on the table harder to make you shut up. "Don't call me cute."

"Well, you are," you grin, landing another quick kiss to her nose.

She jerks back for a quick second before, harshly wiping her hand across her nose. "Don't fucking do that. I don't want your germs on me."

"Then stop getting in my personal bubble," you retort. "I'm starting to think you actually enjoy it." She doesn't reply but narrows her eyes. "Wait–"

"Don't. Just answer my question."

"Uh because I like you. I thought you knew that? Isn't that why you did this in the firs–"

She cuts you off as she grabs your face. "Do you mean it?"

"Mean it? Mean what? That I like you?"

"I don't date anyone unless they mean it."

Your face flushes. "You-You-You want to da-date?!"

"Not unless you prove that you like me."

"WhA–My-My word isn't enough?"

"No."

"And how am I supposed to prove it? By giving you flowers and presents?"

"Ew, no," she replies then shrugs. "That's up to you to figure out." She pulls back with a shit eating grin as she leaves the room.

You fall back against the desk after a few seconds in a flustered mess. "Fuck that was soooo hooooot!!" you groan, pressing your palms against your eyes.

~~~...~~~
Was it everything you wanted? 😂
How you gonna prove it?

Anyway quick little one-shot for ya.
I'll do a male one later.