[ROE-063] On the eve of her son's marriage, her mother became a woman. Rieko Hiraoka (Censored)

After bereavement of her husband, Rieko raised her son Kosuke with just one woman. As Kosuke grows up, he begins to have wicked feelings towards his mother from sexual awakening. But even though she noticed it, she pretended not to see it. And on the eve of his marriage, Rieko finally gave sex education to her mother and child, saying to Kosuke, who can only masturbate, "Tonight is the last night I spend with my parents." However, the uncontrollable desire drives them to further forbidden acts ...