Years ago there was a X rated Christmas cd named "Rated X Mas", It was different Christmas songs with X rated lyrics(parodys). If it wasn't for Napster and other file sharing sites i would have never known about it. There was legal battle and it was pulled from the store shelves. But by then it out and being shared on the web. I was able to find one on ebay years ago. Not for everybody and not for playing when the family is over but fun to listen to none the less.
https://en.wikipedia.org/wiki/Rated_X_Mas