analingus

I have. The wife just says it all feels good. She's not very good at verbalizing what she likes or wants. Hence the question.
 
I think it's wonderful. I'm quite neurotic for preparation (cleanliness) before hand so that way I have no anxieties, which makes for a better all round experience, though I'd hardly say it's limited to specifically this.
it's all about the pre play clean up and clean out.