A fucked up love story. Yandere Katsuki bakugo x Sadodere Fem. Reader

There is no doubt that that love they have for each other is sick. Twisted. Nothing like anything else. I do not own any of these characters and this is all fiction (NOT REAL)
TW: Self harm, Stalking, masturbation, sex, killing, hairpulling, and murder. Plus, abusive like actions and toxic love. All characters are seniors in high school and above age. There will be LBGTQ+ in this as the reader is adopted by Aizawa Sensei and Present Mic
About Sadodere and yandere:

"Sadodere- Sadodere is a portmanteau of "sadistic" and "dere-dere". They're very warped, manipulative, and sadistic people who may seem nice or harmless at first, but like to tease their love interest and toy with their emotions. Sometimes their love interest gets off on it. Maybe a sadodere will reform later, maybe they won't"
(This is quoted from fanboying-like-its-1999 on Tumblr)
Yandere- A term that means "sick" meaning the person can go from sweet and loving to dangerous, obsessive, and even violent towards their love interest if triggered or cornered.