FWB, Friend With Benefits. I prefer the platonic kind (no sexual acts), but talking about sex is OK.

I've been married 23 years. I consider myself happily married. I love my wife and I don't want to leave. I just have to find a way to bring out the sex in her. And you hit the nail on the head, we don't communicate enough. I started individual counseling (she refuses to go), so this should help me to learn better coping skills!