A pleine bouche (1977)

The girl with dark short hair is all over him from the start — deep throat right out the gate, no warm-up, gagging a little but never slowing down. She’s slim, maybe early 20s, and he’s muscular with a thick build, both fully into the rough pace. They switch to doggy style after the blowjob, her on the bed bent over, head down, taking hard and fast strokes. Camera stays tight on the action — you see every thrust, every pull of her ass cheeks. Later they’re face-to-face, kissing, her hand on his chest, ring on her finger showing as she grinds slow for a bit. Ending shot is totally different — two guys and a blonde climbing a ladder outside, but that seems like a clip from another scene, probably a trailer mix-up.