A Virgem (1973)

Lenita and Vado are a couple who combine traveling to a place with friends. Lenita is a virgin and does not know that Vado combines with her friends Mário and Durva to play in a game that will be the first to have sex with her. In the place, Mario also besieges the homemade Ines, which will provoke the wrath of Otávio, her husband.