Massage Ladies who offered something a little different

Besides all the usual extras that may be on offer from MLs, has anyone come across some unusual suggestions? Or anyone taken them up on their offer?
I have had a couple of MLs who enquired whether I'd like to share the time with another customer. Nothing bi. Just voyeuristic and exhibitionist.
Well, it took a little arranging the day and the time but I took both offers. Both times, the other guy was well hung and both MLs were very enthusiastic. It was like watching porn live and being a part of it. Great sessions.
PM me if you've had similar offers or experiences.