Los verduleros (1986)
The dude in this is mid-30s, brown hair, kinda average build, wearing a dress shirt like he just came from work. You see him first sitting at a desk, looking stressed, then a brunette in a tight dress walks in and drops to her knees. She gives him a solid blowjob, no teasing — deep throat, spit dripping, real messy. Then she bends over the desk and takes him from behind, hard, papers flying, guy pounding her with his hand on her hip. She switches to riding after, slow at first, grinding down, then bouncing fast while he pulls her hair. Ends with him jacking off all over her back, multiple shots, cum dripping down her spine. Camera stays close during oral and doggy, shaky handheld style, gives it that raw, unscripted feel.