At the request of a man with a cuckold fetish, he lures his wife out under the pretense of filming a "private AV" to record their sex. But when they start filming, the husband doesn't get an erection... So he introduces another man to the couple as a substitute for the husband. The wife accepts the man's replacement for her husband, on the conditions that "no deep kissing," "no blow jobs," and "pretending to have sex," but...