'My parents divorced when I was young. I lived with my father until he remarried. My new mother, Ruka, came to live with me. Ruka was young and attractive with big breasts. I like big breasts, so I don't know where to look at my stepmother... One day, I thought my mother was out and was masturbating by myself, but Ruka saw me. She didn't flinch and gently brought me to orgasm with her big breasts. From there, Ruka and I crossed the line and our forbidden sexual relationship began.'