Perversión en el paraíso (1981)

The brunette has long dark hair and a curvy frame, wearing nothing as she grinds against the blonde guy in bed. They’re both in their 20s, white, and spend a lot of time in close embrace — slow, grinding motion under white sheets. The mirror scene stands out because you see them kissing deeply while positioned in front of it, full body visible, curtains adding soft blur in the background. He’s short-haired, slim but muscular, and later shown alone in a tight shot focusing on his hand jerking his cock, chest hair thick and natural-looking. There’s also a random wide outdoor shot of a similar-looking guy standing in a creek, fully clothed, which seems like a cutaway or mood piece. The lighting in the bedroom is consistent — warm, dim, intimate — and the camera holds medium shots that keep both faces and bodies in frame during sex.