I know this is a fantasy game in every sense of the word,
but that scene with the nurse at the start makes no sense.
Our powers are supposed to be dormant so even if we're half incubus we
shouldn't be able to passively seduce a nurse like that.
That isn't to say you can't have "crazy" kinks and fetishes in this game. But they have to make sense inside the world you're creating.
Say you want to have incest in the game, you'd have to establish that the family members in question need to be brought around to the idea, or why they're already open to it. You can't just say this is the way it is.
Same for anything out of the ordinary, like the nurse acting inappropriately like that.
Yes this is a porn game and will have sex scenes, but you don't need to force them in to drive that point home. Especially with a succubus who has sex with you practically right at the start of the game