But, so far, there's no NTR with another man fucking one of your LIs.
not true, mom can get raped if MC does nothing
friend's mom can be considered LI, so allowing him to get BJ would count, in not as ntr, but at least sharing
probably some more too? dunno, i avoided it like fire
and although not scenes - you can get some "cuck" points while talking with sister at the end of current content and bunch of "pussy" points before that through whole game, definitely will contribute to future cucks
but so far all ntr, be it scenes or points, were all avoidable