So we all stripped out of our pajamas and raced out to the pool. After a lot of splashing and fun, we just relaxed and floated along. As I drifted on ...y back past my sisters, I knew they were probably staring at my penis, which was clearly in view. My ears were just under the water level so I couldn't hear them. But when I glanced over at them, they were both smiling brightly at me."What are you two staring at?" I asked boldly. I purposely stayed on my back, leaving my penis just out of the. That’s when things got as little weird. I could swear I could hear the gray guy start to curse. The thing is all I could really understand was the word, damn it![I believe he is within the vicinity though, the natural brick of the buildings seems to be hiding his bio-signature.] The gray guy thought.I was nodding in agreement when a severe pain ripped through my skull. I almost screamed as I sunk to the ground. I tried to crawl away from the area as I suddenly knew that the output of my brain. I grabbed onto Charlottes tits, as I came, pulling and pinching her nipples as wave after wave of passion coursed through my body. I moved when I could take no more. I laid beside her, I really wanted Daddys cock, but I let Charlotte have it since it was the first time. I busied myself on her tits, kissing, licking, sucking, and biting them as Daddys thrust became harder. Charlotte moaned and held my head as I moved back and forth between each of her tits. Oh god, Im going to cum! Daddy, Im. I was also very turned on by the thought that I could wear women's underwear to work and around the house in front of her. So when she stood firm, I stopped objecting. We slept in separate rooms that night. I was still in my lingerie and I masturbated several times with the humiliation and excitement of it all.It was only two days later when Nicole told me that she was going out that evening and that I must be in the spare bedroom by 11:30 p.m., because when she got home she would have a friend.