La dernière femme (1976)

The scene starts with a guy in his 40s sitting bare-chested on a bed, already hard, waiting. A slim blonde in her 30s joins him, wearing black lingerie, getting comfortable as they start eating together — weird vibe, like a date gone sexual. They move fast into making out, then she drops down for a blowjob, deep throating with her hand working the base. He flips her over and goes doggy style hard, her tits bouncing free, then pulls her up against the headboard for a rough back-and-forth. Finally, they end in missionary with her legs up, grinding slow while he kisses her neck. The lighting stays dim throughout, most shots wide but cutting in close during the blowjobs and facial finish.