The mother who had been watching her son's masturbation was found out by her son. In a spur-of-the-moment decision, she said, "Would you like me to help you?" which turned her son into a sex monster. He sucked on her plump breasts and inserted his fingers into her vagina, and even though he was her son, her body reacted, causing her to involuntarily lift her hips and moisten her crotch. After a long time, she took in a penis other than her husband's into her vagina and guided him to ejaculation using her hands and mouth. Afterwards, her son, who couldn't forget the taste of his mother's body, used the excuse of not telling his father to have a relationship with his mother again. The mother, driven by her son's animal-like vigorous hip movements, ascended to heaven several times, and the promise of just once led her to seek out her son herself.
