There is a game about a group that comes together to play DnD and then gets trap in the world. I don't think it has an incest. I hope someone comes along and ids it.
Changing room scenes are the most innocuous way to introduce some t&a early into the game. Keep em around and give them something to keep the donations going. Sometimes I think we would get better AVNs if there was no monthly subscription and you could only sell a completed game.