Bubble Butts 16 (1992)

This one’s centered on a slim blonde with long wavy hair and a surprisingly thick ass for her frame — you notice it right away when she bends over the barstool. She starts off sucking a guy with short brown hair, deep throat action, face all focused, head bobbing steady. Then she’s flipped around onto all fours, ass high, legs spread, and he’s gripping her hips hard while pounding her from behind. They move to the bedroom later, where she lies back on the bed, completely naked, legs open, and he keeps going at her in close-up. The angles on her backside are constant — this is clearly a bubble butt showcase, and she knows how to arch that spine to pop it just right. No wasted time, just straight fucking with a few talking bits in between against a blue wall with a plant in the corner.