After being widowed and starting to live alone, Sayako receives a visit from her daughter and son-in-law. While the three are chatting over tea, the son-in-law drops something, and Sayako bends down under the table to pick it up. At that moment, she catches sight of his crotch and instinctively swallows hard. Visibly aroused by the bulge in his pants, the son-in-law begins making advances, but his wife gently rejects him and instead starts giving him a massage. Seeing this, Sayako announces that an old friend has arrived, prompting her daughter to take over the massage and leave with the visitor. The son-in-law, apparently exhausted, soon falls asleep—but his erection remains prominent. Drawn to it, Sayako begins touching him passionately, eventually taking his large, hard cock into her mouth. As she sucks him fervently, thick cum spurts into her mouth. She swallows every drop before quietly returning to her room. That night, Sayako lies awake, her body burning with arousal from the long-forgotten sensation of a man's cock. Silently, she begins pleasuring herself—reliving the image of her son-in-law's crotch.