Onna no hosomichi: Nureta kaikyo (1980)

Starts with a skinny Asian guy going down on a petite blonde on a couch. She’s got long wavy hair covering half her face, but you can see her tits bouncing as he licks her out. Then cuts to a dark-haired white dude with stubble eating her pussy from a low angle—camera’s right in his face, so you see every flick of his tongue. Later, the two guys sandwich her in a tatami room with cushions everywhere. One’s got slicked-back hair, the other’s built, and they take turns jerking off while she sucks them. She rides one guy reverse cowgirl while the other feeds her his cock—good angles on her ass slapping against his thighs. Lighting’s warm and dim, so it feels like a private show. No fake moans, just real heavy breathing and wet sounds.