Robin was sitting next to me so I was playing with her boobs as April gave me head, surprisingly good head, as she seemed to know how to use her tongu... to rub the end of my dick as she sucked, she was really good."Make him cum in your mouth, April, there's nothing more fun and he'll love it," my girlfriend urged. It really seemed crazy that my girlfriend and I were having sex when she invited my little sister to join in. And she did, she was giving me head right then."How's your little sister. Valerie put her arm across my shoulders and said “Come here I think you need a hug” I put my arms around her waist as we hugged. “He’s a PIG Donna I’m so sorry, did he **** you?” I said “No” because he didn’t.As we hugged around thirty seconds we separated and she looked me in the eye and smiled, I smiled back, then she kissed me, just a peck and then another, then another until we were snogging, our tongues probing each other’s mouths, my arms around her waist hers around my neck. After maybe. After a few minutes I leaned back and looked down, enjoying the view. "Watching my dick go in and out of you is so fucking hot. You're going to make me cum soon." I said."I want you to cum inside my pussy." Are you on the pill?" No, but it's ok." But you might get pregnant." I don't care. Just cum inside me," she begged.Hearing her tell me to cum inside her pussy was unbelievably hot. Thinking about knocking up my own sister and picturing her with swollen breasts and a large tummy was more than. A few minor items were corrected when we got home. We now were able to settle on a basic design. We did need to know just how big we could go, so the John W. was built with the dimensions scaled up by 50%.John was so pleased with his ship that we went for broke and scaled the Wilbur H. to be double the size of the Jimmy W. Wilbur reported that his ship had a tendency to be a bit ungainly, so we decided to scale the next ship back to the size of the John W. when we got around to building it.The.