La maison des phantasmes (1979) (Better Quality)

The scene starts with a slim blonde in white lingerie holding hands with a muscular guy in a bedroom. She’s petite with long hair and a tight body, and he’s got short brown hair and a lean build. They move from soft moments to hard fucking — she rides him first, then takes it from behind in doggy style with deep thrusts. The guy cums on her back after slamming into her for a solid minute. Earlier you see two other women together on a couch, one bending over the other, so there’s girl-on-girl action too. The whole thing takes place in a big house with natural light, giving it a real, unplanned vibe.