Ejiro Kirishima x FEM! Y/n Ashido 18+ (Rewrite)

~Finally Mine~

When you were seven you met a boy with brunette hair,red eyes, and a scar just above his right eye along with a young blonde boy with red eyes. You and guys became best friends almost instantly. You felt like you knew him forever like he was your friend forever. As you two grew older the closer you three got to each other especially when your dad got up and left. You three even got into U.A in the same class, class 1-a. Your twin sister noticed and it made her furious. She wanted Kirishima, she didn't want you to have him. Your twin sister Mina eventually started dating Kirishima, when he would come over to your guy's house when he started dating Mina you noticed that he seemed scared of her and didn't want to be with her, that sparked a question of interest. Why was he with her? If he had a crush he would've told you, you guys told each other everything. You and Katsuki both have also noticed that Mina would pull Kirishima away when you both entered the room like she knew you both would try and get Kirishima to confess to what she did to make him date her, however Mina wasn't in the same classes as you two and Kirishima so you and Katsuki waited for school the next day.

THE NEXT DAY...

It was the middle of the day, almost lunch time and the teacher had given you guys a free period because she was tired. You and Bakugou went up to Kirishima and started talking to him.

Y/n: Kiri we need to talk to you.

Kirishima: What's up guys?

Katsuki: Can we talk in private?

Kirishima: Yeah of course.

You had asked your teacher if you and Kirishima could talk in the hallway real quick because it was urgent and she allowed it. You both walked into the hallway and you looked to make sure Mina wasn't anywhere to be found, especially around the corners.

Y/n: Kiri, are you okay?

Kirishima: *Fuck*Y-Yea I'm okay.

Katsuki+Y/n: Don't lie to us, Ejiro.*you both said with a cold and upset tone*

Kirishima: I-I'm not okay *he said with a crack in his voice with tears building threatening to fall*

Y/n: Kiri we need you to tell us and show us what she did to you.

Kirishima: S-She threatened to h-hurt Y/n if I d-didn't date her, s-she also punished m-me *rolls up his sleeves* when I d-didn't listen t-to her.*He started to cry harder falling to his knees*

Katsuki+Y/n: Oh Kiri.*you both said in a soft tone while kneeling in front of him and hugging him* Y/n: I'm okay me and Katsuki won't let her hurt you anymore, I promise.

You three stayed in the position you three were in for a little bit. You three then went back into the classroom where Kirishima laid his head on your lap while you played with his hair calming him down with Bakugou making sure no one came near you three. You talked to Katsuki while waiting for the end of class.

Y/n: Hey Katsuki what color should I dye my hair?

Katsuki: Half red and half brown.

Y/n: Yeah I think I'll dye it tonight since I have left over hair dye.

When the bell rang you three walked to lunch. While you three were walking to the lunch table you saw your twin sister walking towards you three.

Mina: Ejiro why are you with them?!

Y/n: Address me and Katsuki, not him Mina!

Mina: Y/n stay in your fucking lane!

Katsuki: Why so you can make him keep dating you?!

Mina: Damn it Ejiro this is why I didn't want you near them! *raises her hand to Kirishima with him frozen*

Y/n: *Moved in front of Kirishima to protect him and gets hit by Mina* I don't fucking think you'll be hurting him anymore Mina! *you grabbed her arm and started to twist her arm slowly*