Los verduleros II (1987)

One of the women has long black hair and a curvy frame — she’s the first to get blown by one of the guys while the other woman peels off her top in the background. They switch off between riding and doggy style, both guys taking turns with each girl, one at a time. A lot of close-ups during face-sitting and swallowing, everything lit with soft red ambient light. The second guy stays hard the whole time even when he’s just watching, jerking himself slowly. The second woman is thinner, smaller tits, but goes deep on the blowjob — throat full shots with visible gag reflex. Camera work stays tight during penetration, pulls back only during transitions between acts.