Rieko has been married to a man with a child for three months. Although her relationship with her husband is good, she has not yet been able to open up to her son, Kazuya. Her husband, unable to bear this, suggests that they take a family trip, but... Before long, Kazuya begins to feel attracted to Rieko as a woman, and unable to suppress his rising desire, he pushes her down. Rieko repeatedly climaxes due to his reckless thrusts and persistent caresses. Her body cannot suppress the throbbing of the sex with Kazuya, which she has never experienced before... Rieko has been married to a man with a child for three months. Although her relationship with her husband is good, she has not yet been able to open up to her son, Kazuya. Her husband, unable to bear this, suggests that they take a family trip, but... Before long, Kazuya begins to feel attracted to Rieko as a woman, and unable to suppress his rising desire, he pushes her down. Rieko repeatedly climaxes due to his reckless thrusts and persistent caresses. Her body can't contain the throbbing sensation from the sex with Kazuya, which is perfectly matched to hers, something she has never experienced before.