Le jeu avec le feu (1975)

Starts in a kitchen with this hot redhead chick—fair skin, freckles, tight little body—just standing there in an apron while some dude chops food. Doesn’t stay innocent long. Next scene, she’s bent over in a barn, getting pounded doggy style by the same guy. He’s got some stamina, gripping her hips hard enough to leave marks. Then there’s this other slim brunette with long hair who joins in, and you get a solid threesome vibe with her sucking him off while the redhead watches. Camera work’s decent, not too shaky, so you see everything—especially the way the redhead’s tits bounce when he flips her over. No weird angles, just straight-up fucking with good lighting on their faces so you can tell they’re into it. Ends with the brunette riding him reverse cowgirl, and you get a clear shot of his dick sliding in and out.