There's blackmail (Colin can do it if he gets his hands on MC's nude pictures), Draco can dominate unwilling MC with magical artifact, and you can get your ass fucked by an intelligent plant when you never consented to that part of a deal and MC makes it clear she doesn't want it.I wouldnt mind some sort of non consent sex towards the MC (as I play a female) at some point. Maybe in the area of a charm spell which would make her consent where she otherwise wouldn't to someone. Or be blackmailed at some point.