On an afternoon when the stepmother was out, Nanae was sitting in the living room flipping through a magazine when her stepfather quietly approached and began describing in detail the previous night's sex between her and her husband. As he grabs her hand and presses her for intimacy, Nanae's shyness gives way to mounting excitement and palpitations. Set in a two-generation household, this scene weaves together the couple's intimate relationship with the father's involvement. A highly erotic scenario packed with realistic dialogue and intense tension.