Your son is not a virgin.

Kaori lives with her husband as a full-time housewife. In contrast to Kaori, Kyoko, the mother of the Fujita family who lives next door, is raising her two sons, Masato and Kazuaki, on her own. One day, Kyoko will be away from home for a while. Hearing this, he decides to take care of his sons at Kaori's house, but... The next day, Masato and Kazuaki visit Kaori's house. While watching the two behave well, Kaori remembered something Kyoko had said, ``They're both virgins, and they always have wet dreams.''