Hirusagari no joji: Uramado (1972)

First thing you notice is the lighting — dim, moody, like a cheap hotel room with the blinds half-closed. Two Asian chicks, both skinny with long dark hair, one with a visible tattoo on her arm. They start by taking turns sucking the same white guy’s dick, no hands, just bobbing their heads like they’re in a hurry. The guy’s got short brown hair and a decent build, not some gym bro but not scrawny either. Then it switches to doggy style with one of the girls — she’s got her hair tied up in a messy bun, and you can see her tits swinging every time he slams into her. The camera gets right behind them, so you see everything. Later, the two girls go at each other in a 69, and the angle’s perfect — overhead shot, so you get a clear view of both their faces while they eat each other out. One of them’s got dark brown hair, a little curlier than the other, and she’s the more aggressive one, grinding her pussy into the other girl’s mouth like she’s trying to suffocate her. No fake moaning, just real heavy breathing and the sound of skin slapping.