Amours collectives (1976)

A muscular white dude with tattoos is getting a blowjob from a slim brunette with dark hair in a dim bedroom — she’s deep-throating with her hand near the base, sloppy and real. They switch to missionary sex later, both sweaty and grinding hard, her legs shaking a bit as he pounds her. Out in the living room, the same guy’s in a three-way with another white guy and the same girl, all on a couch, lots of skin contact and swapping positions. He takes her from behind in the shower at one point, her hands on the tile, him pulling her hips back into each thrust. The camera stays tight during key moments, especially the blowjobs and anal, never cutting away when she gags or winces. Dude jerks off solo in the bedroom at the end, close-up on his dick and the messy finish.