I was 13, and my best friend Steve was 12, lived across the street from me. He had 2 younger brothers, and then 2 younger sisters. I was always over there, Steve and I doing things boys do. School had just let out for the summer, and I was going to Steves, and his dad's car was gone, nothing new, he worked long hours. When I arrived, knocking on the door like always, Betty, Steves mom came to the door, said the boys went fishing with their dad. I said OK, I guess I will have to find something else to do. Betty ask me if I could watch the girls while she took a shower, so I said sure, and went inside. Both of the girls were sleeping, Rose is 8 and Sherry 2. Betty went into the bathroom, and left the door open about 4 inches. I watched her in the mirrow undress, and stepped into the tub / shower, pulled the curtin, and start showering. When she stepped out, she opened the door, asked if the girls were still sleeping, I said yes, and she smiled. Leaving the door open all the way now, she dryed off, and walked out naked. By now, my 5 inch 13 year old dick was hard as a rock, and she took my hand, led me into her bedroom, and proceded to take my viriginity. I was just fully inside of her when I came, filling her with a load of my young cum. Betty took my dick, and played with it, and as soon as I got hard again, she pulled me on top of her, and I put it in again, this time lasting for about 10 minutes. By the time I rteached 15, I had fucked Betty at least 100 times. I spent a lot of nights with "Steve", while their dad was away driving his truck. One day at the end of summer, Steve told me his mom was going to have another baby. Now come May just before my 16th in June, Betty gives birth to a little girl. This one had brown hair, and all of the other kids were blonde, as was Betty and John, the kids parents. While visiting in the hospital, Betty asked what I wanted to name my daughter. OMG that was a shock. I finally realized that the truth was, she was mine, and I asked her to name her Kristen (my x-girl friend's name.) Now summer again, and I'm babysitting, and Rose is now 11, and yes, I fucked her too. Over the next two years, til I turned 18, I kept fucking Betty, and about once a week got to fuck Rose as well. The last night before I left for boot camp, I took 13 year old Rose out for some Ice Cream, with her mom's blessing, she knew that Rose had a crush on me, but didn't know we had been fucking for the past 2 years. Yes, I fucked her before bringing her home, and no she didn't get PG. When I returned from the military, they had moved away, and it was another 3 years before I found out where they had gone. I was visiting a older brother in Texas, miles from Arizona, and while there, found they lived just 4 housed down. Rose now 20, just finishing collage, and me now 25, and single, good job working for the government as an Air Traffic Controller in southern Calif., I asked her to come visit me when she could. Spring break, and here she was on my door step, and we renewed our "friendship" fucking the entire week. Rose is now my wife, we have 2 wonderful daughters, and she still dosen't know that I fucked her mom, and had a kid by her. So now my "daughter" is my sister-in-law.