Flesh Factory (1971)

One of the girls has long dark hair and a curvy build, sitting on the edge of the bed sucking dick like she means it. The guy’s got a short dark beard and a solid build, lying back while she works his shaft, then flips her to doggy for a hard pound. Second girl’s slim with long dark hair too, gets fucked in missionary with the camera tight on their bodies grinding. They switch her out mid-scene and the new girl rides him facing away, bouncing slow while he grabs her hips. Lighting’s low but the close-ups catch everything — wet pussy, deep throat, skin slapping during rough sex. No fancy edits, just straight porn shooting focused on the action.