At a hot spring inn during a trip, a couple requests a massage. The husband desires to have his wife taken by another man, and the wife confesses to the masseur, with her husband present, that she wants to be unfaithful. This couple's unique fetish—NTR (cuckold)—unfolds. They are a loving pair: the 38-year-old wife is a beautiful, big-breasted woman, and the 50-year-old husband is an ordinary middle-aged man. Yet they share an unusual kink—enjoying the act of the wife being taken by the male masseur hired during their travels. The older masseur becomes fully erect from the wife's provocations and ejaculates just before sex. They then call in a younger masseur, who arouses her again, quickly bringing him to full erection. With the husband watching nearby, intense sex ensues, including creampie. The husband, unwilling to be left out, also satisfies his own desires. Their marriage is strong, and this shared fetish only deepens their bond.