The plot is not good but the smut is
https://www.mangago.zone/read-manga/sadistic_beauty/
The plot is horse shit and what irks me most is the fact that the characters are from authors real life and this was actually a revenge manga.
Basically the main character's bf suddenly break ups with her because of her special interests. But that stuck up beach decides to take revenge on him by literally r*ping and tormenting him. You can say it is torture p*rn.
Something similar happened to the author irl. And basically the characters are from the author's real life.
This is why I find it so f*cked up
I found another comment, https://www.mangago.zone/home/mangatopic/14765634/
You can ask that person
Threesome smut that is both yaoi and straight so boy x boy x girl