A few friends do know. Her best friend and several coworkers and a friend of ours and her husband because she has fucked like 3 guys in thier house at parties, and we had to explain when the husband of our friend caught her getting fucked by one of the guys in the garage at one of the parties while I was at work. One was on a camping trip she fucked a friend of theirs in his tent, and it was pretty obvious (moans), before she came back to our tent.