Samyangdong jeongyukjeom (1999)

Blonde with long straight hair and a tight, curvy body—big tits, navel piercing—straddles some dude reverse cowgirl on a bed. She’s got abs showing, and he’s got light body hair, both looking like they’re in their 20s. The camera catches her tits bouncing from the side, and you can see her waist working as she rides. Later, two muscular Black guys in their 30s sit back-to-back on a bench in what looks like a cemetery, fully clothed but the vibe is definitely homoerotic. There’s also a silhouette shot of a curvy girl with long hair, probably jerking off in a dark room—just her outline against the light, no face, all body. Outdoor shot at the end: some dude in a yellow raincoat bending over in an alley, probably getting railed from behind, but it’s dark so you don’t see much. Camera work’s solid, especially the side angle on the cowgirl part.