At the request of a man with cuckolding desires, he lures his wife out under the guise of filming a "private AV" to record the couple's sex. When the filming actually begins, the husband doesn't get an erection... So, another man is introduced to the couple as a substitute for the husband. The wife accepts the substitute for her husband who can't get an erection on the condition that "no deep kissing," "no blowjob," and "pretending to have sex," but...