She looked around nervously at the bulge in my shorts, the many cum stains on the floor, then back outside to her sister, then back to me. What did yo... see?, she questioned me shyly. I told her I saw many things, as we watched Jasmin spread her legs to allow the sun to hit between them. Did you see me Susan asked with a stutter? Before I could answer she said did you do that while you watched me, and she pointed to the cum stains all over. Now I was probably turning red as I realized she knew. " You must be insane! Let me out of here. Please, let me go!"She ignored the interruption. "You see, my little experiment requires that we preserve a quantity of your sperm in case you decide later to raise your own child. Prepare for your last male orgasm."Before I could react, she implanted a large tube on my penis. It was attached to wires and a rubber hose, and as she switched it on, I realized that it was some kind of milking device. In spite of myself, I began to harden as it sucked on. “Steve, I’m sorry! I had no idea!” Tracey said when I walked into the room.“Tracey, there’s no need to apologize. You know how I am with friends, and I consider you a friend.”“But we’ve hardly talked over the past seven or eight years.”“I’m not sure that matters much, in the scheme of things. I’m happy to do what Marty asked.”“Trace, please don’t fight me on this,” Marty pleaded.She looked at him, then at me, then back at him and smiled. Tracey and I stayed for a few hours, talking about things. Mary and Jane had arrived and were glad to see me. Jenny old them that I was going to the party and they all smiled and said this is going to be an awesome event. I showered and did my hair and makeup knowing that in a couple of hours it would be all messed up. Jenny handed me the dress I was going to wear and when I put it on I t was a bit small on me. My tits were just barely covered and my ass was hanging out from the bottom. I looked like a complete Slut. It was Perfect and I felt so sexy.