Warning...
I am seriously regretting promising warning pages now. How on earth do I know what will offend people?
Anyway, here goes....
There is an original character who has the audacity to have sex with one of the boys. There's group sex. There are scenes of violence, and the boys get off on the violence! Some of this could be described as S&M. Oh, there's a scene of autoerotic asphyxia and some blood play. (There's almost some het sex, but that's too gross even to mention in this warning). There is a major character death.
If you think any of that might offend you, please don't read on....