Ever since I was a child, it was just me and my father living together. Then he remarried, and my new stepmother, Ruka, came into our home. She was young, had big tits, and was incredibly attractive. As someone who's into big breasts, having a stepmom like her made things really complicated. One day, while my father was out, I was home alone masturbating when Ruka walked in and caught me. Surprised but unafraid, she didn't back away—instead, she used her large breasts to gently help me reach ejaculation. From that moment on, Ruka and I began a forbidden relationship. An incestuous affair beyond parent and child had begun, filled with endless, taboo pleasure.