The Peek Freak (1973)

A slim brunette with dark hair and a tight body is on top first, riding the guy slow but deep on a couch in a dim living room. You can tell she’s into it — her hands on his chest, grinding down each time he thrusts up. After cowgirl, they switch to doggy against the back of the couch, her ass bouncing as he pulls her hips back hard. The camera stays close, catching the wet sounds and the angle of her pussy pulling open between strokes. Later there’s a cumshot — thick ropes hit her back and one lands right on her shoulder blade. Scene’s got that raw, quiet vibe with no music, just natural movement and lighting.