El diputado (1978)

Starts with the girl on her knees, dark hair hanging down, taking him deep. She’s got a tight little body, small tits, but she knows how to use her mouth—lots of spit, gagging sounds, the works. Camera’s low, right between them, so you see every bob and swallow. After that they switch to missionary on a rumpled bed, her legs wrapped around his waist while he pushes in slow at first, then picks up speed. Guy’s got a lean build, visible chest hair, and that stubble you can almost feel. Lighting’s dim, just enough to see the sweat on his back and the way her hair sticks to her face. No fake moans, no over-the-top acting—just two people going at it like they mean it.