Shuai pi gui (1992)

One of the girls has a small tattoo on her lower back, visible when she bends over in doggy style. The Asian guy, slim with short black hair, takes both girls one after another, then together in a tight three-way on a dimly lit bed surrounded by pipes and smoke. Camera lingers on facial expressions during deep throat — her lips stretch tight, eyes shut, his hands gripping her head. They switch to missionary briefly, but most of the action stays in low-light, blue-toned indoor setups that feel like basements or club backrooms. The second girl is slightly curvier, more responsive, moaning loud during creampie finish. No outdoor scenes involve sex, just lingering wide shots of the pier before cutting back to the main room.