Why You? (Bakugou x reader)

"Ka-kun, remember me?" After leaving kindergarten, you return to your old home and pass the exams to attend UA High School to become what you always wanted, a hero. Your reasons why are still a mystery to everyone else but you and Bakugou, the only one you ever told. Little did you know he and Izuku attend the same damn school. Your childhood friends. You meet them, but something seems a little off about both of them. "HUUUUHHH?!?!?! You were a girl this whole time!!!???" How the hell did they not know? Now your crush on Katsuki was all for nothing!... Or was it? (TRIGGER WARNING!!! SMUT, VIOLENCE, and HEAVY TOPICS)