'My parents divorced when I was young. I lived with my father for a long time, but my father remarried. A new mother, "Ruka", has arrived. "Ruka" was a charming person who was young and had big boobs. For me who loves big breasts, I just have trouble finding my mother-in-law. One day, when I thought I was away and masturbated alone, I was seen by "how" I was, but Ruka was not scared and gently led me to ejaculation with the big milk. From there, I and my mother-in-law, "Ruka," crossed the line and started a forbidden parent-child activity. '