The weekend after the bathroom incidence was one such Saturday. Mother concerned but needing the time out, exchanging looks with her daughter as she g...t ready and reiterating the rules. As soon as the car left the drive, brother and sister were in the brothers room, with the sister sitting on the bed telling her brother get his penis out, to let her touch it. Letting his trousers and pants down the brother cock sprang out and pointed straight at his sisters face, "show me how to rub it" said. I proceeded to fuck her with deep, gentle thrusts until we both had our most satisfying orgasm for a long time.The following morning as we were laying in bed enjoying our morning cuppa, she again asked me if I thought David really meant what he’d said and again I assured her that he did. Again after that, she let the matter drop but I did notice that she spent a lot of time online that day but made sure I didn’t see what she was looking at.Nothing further happened until a couple of days of days. The second week mom thought I should have a bath as I was starting to stink. She ran the tub and undressed me. I was pretty excited for her to see me as I had hair on my balls and under my arms now and it was starting to come in on my chest. My dick seemed to be growing bigger too. Mom undressed me and helped me into the tub. I caught her looking at my cock and this made me tingle all over. I sat in the warm water and she proceeded to clean me with a rag and soap. When she cleaned my cock and. Maybe it had been hidden there all along, waiting for my desperate need for doing something to recognize it. The idea may have germinated early on in my thought process and just not fully bloomed until that day I drove by the office and saw her standing by her car. My first thought was not of running over her, but was instead how sexy she was, for a bitch that is. From there I think the idea grew. I wanted to teach her a lesson and take pleasure from teaching her. I knew what I would do.The.