I was in a hot tub, between two married women, both good friends of mine. We had never had any sexual contact in the past. I guided first one, then the other's hands to my hard cock. I think they believed my hand was the other one holding me. I started masturbating both of them, and was enjoying seeing them squirm.
One of them got out of the hot tub to go to the bathroom, and her husband took her place. I was very surprised to have him immediately put his hand on my hard cock, and start masturbating me. Carol, on the other side, followed his cue, and also started stroking me up and down. I had never had another man's hand on my cock before, and I bet Carol thought it was still my hand on my cock. So, I took both arms from the tub and laid them on the edge, so it was obvious to them it wasn't me helping stroke my cock. I controlled my self as long as possible, but soon a stream of my white semen was floating on the top of the water. As it turned out, Kevin gave me a blow job later that night, another first for me from a man. A few weeks later, I gave a blow job for the first time. I also started fucking Kevin's wife, and I told him if he made waves, I would tell her he's a cock sucker.