My wife and I were visiting family out of state, we live in AZ, and family in Washington. We were staying at her sisters place, and being normally horney, I wanted to fuck. She would have none of it, her sister might hear us. I asked her where do you think her little 5 year old daughter came from. She still said no, so I rolled over trying to go to sleep. An hour later, still awake, she was sound asleep, so I got up and went to the living room. After about 5 minutes, in walked Ruth, my wifes sister. She set down beside me, and said softly, I heard the agurment, and I think,she is wrong. We talked for awhile, and then out of the blue she said, if you were mine, you could fuck me any time you wanted. My response, where did that come from. She then told me that when she was still a kid, staying over with us on weekends, she would crawl down the hall, and peak in as we were fucking, and watch us. She said, I have always wondered what it would be like to fuck you ant that 8 inch dick you have. My boy friend was only about 5 inches, and he is the only person I'v had. Now he is gone, and it's been almost a year with no dick inside me. I took her in my arms, and kissed her, and soon she found out what my dick felt like. Two months later, she moved to Arizona, and stayed with us until she could find work. My house is kinda large, and above the garage is a small apartment. When Ruth found work, it was only a few miles from us, and I said just stay in the Apt. and we will rent it to you. Two years later, my wife had a heart attack, and was gone. Ruth has moved into the guest bedroom, and her 8 year old daughter, Kristen is in another bedroom down the hall. At least once each week, one or the other of us takes a little walk to the others bedroom, and spends the night. Last night, Ruth came into my room, and I have this night light thing, it is to keep mice away, even though I have never had mioce, but there was enough light to see Kristen, on her knees, watching me and her mother fucking. All I could think of was, like mother, like daughter. This morning, I had off work, and so I let Kristen know I saw her, and she said OK, just please don't tell mommy. I said ok, but when you are older, it might cost you. With a big smile she said OK by me.