A few times with another couple and a partner so I guess three total watchers. My buddy and I were only able to convince them the one time.

I used to have a four foot black light above my bed and I used to love to fuck with it on and nothing else. Man tan lines look great under a black light. My house at the time had a big back yard that backed up to some woods and a few times I let my buddies watch us fuck. I would leave the curtains open and my girl friend at the time had no clue they were outside the sliding glass door. Well I found out later that they spied a few more times that I didn't know about. I think the most I heard, or that they admitted to, was about five of them watching at any given time.

I also received a blowjob at a concert so for those in the crowd near by it was a good show. I don't know how many people noticed? If I had to guess I would say 15 watchers.

And finally there are all those times I have had sex outside, all of which I hope someone was watching.