Susanna (1996)

Álex is about to get married, but he falls madly in love with Susanna (Eva Santolaria), a girl going through a difficult time. He ends up in prison for a few crimes, and when he’s released, he tries to start over with his wife. But when he runs into Susanna by chance, their relationship reignites, more intense and dangerous than ever.
At the six-minute mark, Eva Santolaria has sex with a man in bed in various positions. After sex, they stay in bed for a while longer, then he gets up and she does the same, getting dressed. At the 13-minute mark, Eva has sex in bed with a man in a hotel room. She is on top of him, then lies on her side and he takes her from behind. We see Eva Santolaria naked again in a brief scene at the 20-minute mark, when she wakes up with a start because she hears noises outside her bedroom door. The actress is topless. At the 42-minute mark, Eva has sex with a man on a dusty table in a basement. At the 48-minute mark, Eva treats us to a beautiful full-frontal nude scene as she walks naked through a room before having sex with a man. Another nude scene at the 57-minute mark, with the two lying in bed hugging and kissing.