Luscious ladies provide entertainment to festive neighborhood parties... to everyone's satisfaction.

Merrie, a nymphomaniac, seduces every man in the family-operated boardinghouse while her younger sister Renée keeps watch. Renée soon blossoms from an awkward adolescent into a voluptuous woman who can hold her own with Merrie. The sisters join all of the boarders for a party that eventually becomes an orgy.