Nina feels self-conscious about her fuller body beside her small, thin husband and has become reluctant to have sex. But his subordinate Takahashi constantly looks at her with obvious hunger, and in a moment of weakness she invites him in. His erection is hard and youthful, unlike her husband's, and he embraces every feature she dislikes about herself. She offers to pamper him if he becomes her personal cunnilingus servant, and he eagerly agrees. Soon they are meeting whether her husband is home or not—and Nina admits his presence excites her even more.