Heavy Load (1975)

Girl with long dark hair is on her knees, deepthroating a guy with short dark hair and a solid build. You can tell he’s into it — his hands are in her hair, guiding her at a steady pace, not rough but not soft either. They’re on a bed in a dim room, sheets wrinkled, looks like right after some heavy making out. She’s slim, pale, with medium-sized breasts, and he’s white, early 20s, looks like a dude who works out but doesn’t flex like a gym rat. They switch to face-to-face grinding after, her riding him slow, then grinding side to side with her back arched. Camera stays close, tight on skin and motion, not much cutaway — you see every shift in angle and expression.