If I remember correctly, the two mains are in school. The bottom is rather violent during sex and is forced to be tied up otherwise there is a chance of being bitten or something 😕 The top finds out and offers to have sex with them, but is warned about how the other boy is. The bottom also has an uncle and is basically the same or something?? I don't remember too much other than the violent bottom and being like, harnessed during sex and the top being told that he /really/ has to make it painful or something, otherwise he doesn't get sated??

I read this years ago - like 7-8 years ago. Please help, I really want to read this one again! 😕 😕

Sadistic Boy by Tori Maia?