Actually none. I was asked if I wanted to have a threesome by two different couples. I didn't do it because the guys in those couples were my good friends and it was weird. One was the guy who was making me the prosthetic third breast and his girlfriend. Another was a couple that I used to roleplay with online, but I knew them IRL too. The chick in that relationship, while she was my friend, was a total psycho. I didn't want to get involved any more than I already was.