Thanks for your reply. In response to your question, the scenes i had in mind were (with apologies for spoilers...) drugging Luna without her knowledge so you can see her naked and switch bodies with her, and also putting each of the girls in a trace and jizzing on their faces without them knowing about it.
Pretty sure I've spotted several games on Steam that are rated 18+ and which also include additional warnings about scenes of a non-consensual nature. Just thought some of your potential customers might find that information useful too instead of discovering it contains such scenes themselves after they've got quite far into the game.