Yuko has been married for half a year to a man who has a child who attends a local university. One day, her stepdaughter Kazuya came home on vacation. Yuko noticed Kazuya, who has a strong sexual desire to masturbate many times a day, and every time she entered his room filled with the smell of a male, she felt the pain of a female. At that time, Yuko, who was robbed of her eyes by his sleeping cock in the morning, unintentionally takes her hand. She couldn't refuse and let him shoot with her hand, but her unfaithful Kazuya didn't stop there, and asked her to ejaculate many times.
