Responses
I guess http://www.mangago.me/read-manga/idol_na_kanojo_to_wotaku_na_boku_to/
maybe http://www.mangago.me/read-manga/kanojo_wa_kannou_shousetsuka/ just maybe. She's a sadist.
http://www.mangago.me/read-manga/mud/ though she says she only does it bc the guy wants it.
http://www.mangago.me/read-manga/sadistic_beauty/