No scat, no pain, nothing non-consensual, and no under-age. Open to at least considering anything else, but that depends on my arousal level. Have enjoyed giving anal when my partner requested it, but not sure about receiving--but then again could go for it if I was really horned up.

Positively yes to groups, esp. bi mmf and watersports--but that wasn't the question.

To each his own, and like others have said I don't judge. But non-consensual stuff just upsets me. Sex is supposed to be fun for everyone.