A horny wife, eager for new experiences, encourages her hesitant husband to watch as she invites a chubby friend over for more than just a friendly visit. The man, a self-proclaimed 'corno' or cuckold, struggles with his emotions as he witnesses his wife's lustful moans and the sight of her body pressed against the plump stranger's. The friend, pleased with his new role, enthusiastically indulges in the wife's desires, leaving the husband to grapple with his own conflicting emotions.