I believe the conference room in your castle.
Kind of an oddly specific question, but I was exploring the dialog options with the farmer origin's mother in Slinsk. I found the corrupt route right after you arrive, and then the consensual route after Act II and you talk about relieving urges. There's an option to be a total kappa, saying incest is hot, and she'll just tell you to leave. Further visits just give a response that she still loves you but doesn't want to see you. Does this go anywhere in later acts, or is this essentially a dead/bad end?