I knew that I was about to cum any second but there was nothing I could do to stop myself. I was beginning to pant and I knew that everyone in the roo... must know what I was about to do.When I'd first accepted Cheryl's invitation to Thanksgiving dinner at her folk's house during school break I'd never even thought about something like this. When we first arrived I was fascinated by Cheryl's large family gathering. Being an only child of older parents I'd never attended an event like this. He looked at us in surprise not knowing what to say. After a while I asked what do you think about it? Would you? I don’t know he said, what would I get if I did it? What would you want? I asked, he thought a while and said, ok I will do it only if you all take off your tops and pants as well. We all looked at each other in horror. One of the girls said well I suppose if your going to do it for us the least we can do is do the same for you. Zoe locked the door so we would not get disturbed, her. Tammy by now had a finger inside her pussy and was rubbing her clit as well. We were all watching each other in utter amazement and JOY. I could hear small moaning coming from my own throat, and that surprised me at how turned on I had gotten. I was watching Tammy pushing another finger in her self and was shocked at how open (no pun) she was about masturbating in front of all of us and Dad as well. Dad was still just sitting there watching an doing nothing. I asked him if he was going to. Silly me, I thought that and some “wife swapping” at the end of the evening would be all there was to it. Now Jeena is a very competitive person who is not to be out done by any other woman no matter what. This made her very popular with men and not so much with women. The six of us arrived in Galveston early Friday evening and checked in at the Tremont Hotel on the “Strand”. We went to Guido’s for dinner and returned to get ready to hit the streets. We all met in the lobby to head out. The.