from Big Bet (2022)
Son Eun-seo briefly showing her bare butt as we see her nude ina sex scene with a guy, first in his lap before he picks her up and backs her against a window. The guy then carries her to a bed where she lies on her back and the guy pins her legs back while having sex energetically on top of her. She then wraps her legs around him as he finishes and we get a near view of her butt and see her breasts with her hair covering them as she rolls over and pulls on a pair of panties (she is wearing nipple pasties). From Big Bet (AKA Kajino).