You know, the way this game is designed, I am surprised there was no necrophilia lust going on (Kidding! I do not want that!)
I am afraid to tell you that there is in fact a comment regarding necrophilia in the game. Spoiler says when/where.
When you kill Alfira as Dark Urge, your butler will show up in a long rest later and you can have a chat with him. If you choose dialogue indicating you're happy and embrace the urges, the butler will gleefully proclaim that necrophilia will be back on the menu in no time, meaning that your Dark Urge Tav was a necrophile before the amnesia. You are literally the worst person in camp, by a long shot.
