When I was thirteen and my little brother was eight, whenever our mom wasn't home, I would walk around the house with nothing on. I told him that if he ever told mom that he saw me naked, that I would clobber him. He promised that he wouldn't tell. To me it was fun and exciting. I was starting to get breasts and I liked showing off my titties, and the fact that I was also starting to get pubic hair. I knew my little brother liked seeing what a naked girl looked like. He told me that it made his penis feel funny. I told him that he should take off his clothes too, and that it might feel better. When he did, I saw that he had an erection. It was actually first erection that I ever saw, outside of a picture that one of my friends had from a magazine. After that, we started taking our clothes off together quite a bit and we that for maybe the whole next year. Then one day he asked me if he could stick his dick in my pee hole. While he techinically got it wrong, he sure had the right idea of what to do with his hard little penis. I was kind of shocked. I thought that he was too young to get me pregnant, but after that we kind of stopped being naked together.
