I must admit that I am guilty of having sex with my younger sister-in-law after marriage. She was around nineteen years, I was twenty-nine years, and my wife was twenty-four. I was always fascinated by her sexy, sort of cat-like, walk. The sex happened when I was inebriated a bit one day; she also liked the foreplay. My wife was away for her dental checkup that time. My sister-in-law said she loved our sex. That made me mad after her even more. Fortunately, it all ended after she got married.