In order to investigate the reasons why his son and daughter-in-law are childless, a father-in-law spies on their lovemaking... only to discover that his son's sexual performance is incredibly clumsy! Enraged, the father-in-law takes matters into his own hands, using his daughter-in-law's body to demonstrate a 'sex seminar.' The daughter-in-law, familiar with the female body, makes quick work of bringing her to climax. Though the couple learns the secrets of conception, the daughter-in-law's lascivious body stirs the father-in-law's desires. His guidance becomes increasingly intense, performing vigorous cunnilingus on her and forcibly initiating sex. The daughter-in-law gradually succumbs to the father-in-law's thick, intimate sex, unlike anything she experiences with her young husband...
