Foolish and Eager (1979)

A skinny blonde girl with messy curly hair and a tight body is the focus here — she’s fully naked by the fifth frame, touching her tits while looking down like she’s shy but turned on. She’s with a guy who’s got short brown hair, average build, and they start out just hanging in a living room with plants and soft light, but it doesn’t take long before clothes come off. She gives him a handjob on the couch, then switches to riding him with her back arched, taking deep strokes. The angle from behind on the bed is raw — you see everything as he pulls her hips back into him, her ass jiggling with each thrust. Later, she’s on all fours, getting pounded in doggy while looking over her shoulder, lips parted, face flushed. The whole thing feels casual but intense, like a hookup between people who know exactly what they want.