Qing Ding Bei Hai An (1990)
One of the girls has a tight black bob, the other keeps her hair in a neat ponytail — both are slim with small tattoos on their faces, visible during close-ups. They start off embracing on a bed, kissing slowly before moving down each other’s bodies. You get clear shots of one girl going down on the other, tongue working in circles, then switching to strapon penetration in missionary. The camera stays static but close, catching every moan and the way one girl grips the sheets when she cums. It’s low-key but intimate, most of the action happens in soft natural light near a window with curtains. No talking, just breathing and skin sounds, the kind that makes it feel private, like you’re not supposed to be watching.