In a spur-of-the-moment decision, the husband invites his wife to assist him, but she turns the situation into a personal playground. The 'ninfomaniaca' wife, a self-proclaimed 'tarada,' can't resist showing off her 'bunda-grande' and 'boquete' skills. The husband, unable to resist her charms, finds himself becoming the 'corno' he never thought he'd be, as his wife's 'mamada' distracts him from his duties, leaving the 'serviço' unfinished.