Two Brazilian ballerinas, bored and curious, find themselves alone in the studio. They start a game of 'Papai e Mamãe,' a role-playing fantasy they've heard about but never dared to explore. They begin innocently, but as the game progresses, their touches become more intimate, their breaths heavier. One sister plays the mother, the other the daughter, their bodies pressed together as they act out a taboo scenario. Their eyes meet, and they realize they've crossed a line, but the game has only just begun.