La mondana nuda (1980)

Big bearded dude with a tight body takes a slim blonde into the woods and starts grinding against her with her back against a tree. You see them fully naked, her legs wrapped around him, but they’re not fucking yet — just heavy petting and grinding in daylight, branches above them. Later it moves to a car, dim light, his hand under her top, then sliding into her pussy from behind while she’s half-reclined on the seat. The outdoor shot is wide, natural, looks spontaneous. Indoors, it gets tighter — doggy style, hard thrusts, he’s holding her hips and pulling her back into him. She’s got that girl-next-door look, long straight hair, not wearing much makeup, and he’s got that rugged tank build with dark stubble and intense focus.