There have been many unofficial (and a couple of 'official') books made for dealing with sex in Dungeons and Dragons: https://www.drivethrurpg.com/product/12195/Book-of-Erotic-Fantasy https://www.drivethrurpg.com/product/206844/The-Book-of-Passion-Preview
I think most people pick these up out of curiosity, though (I certainly would be uncomfortable with a group that likes to use such rules).
Base +6, blagblag +7
Posted on 08 September 2019, 06:16 by: Zerozero204
Score +17
I don't know if this is necessary for Xanth, DND, or WH40K, but it sure makes dropping the subject in convenient!