La noche de los sexos abiertos (1983) (Better Quality)

Starts with the dark-haired Latina—slim, shoulder-length waves, full sleeve tats—teasing on the stairs like she’s about to strip. Then the blonde MILF with the short bob shows up, already looking like she’s ready to ride. They double-team the guy on a messy bed, switching between missionary with him pounding the Latina while the MILF feeds him her tits, and a quick flip to doggy so you get a clear shot of his cock slamming in from behind. The lighting’s dim, all shadows and warm lamp glow, so every thrust looks grittier. He pulls out a toy at one point—looks like a prostate massager—and the MILF takes it while he keeps fucking the Latina, which is a nice bonus. No fancy editing, just raw, close-up shots of them going at it like they’re actually into it.