1girl, 1boy, 1girl \(shoulder-length dark brown bob with inward c-curl, warm brown hair color, Japanese woman, 21 years old, large breasts, wide hips, toned female, narrow waist, face shapes: ears visible, wearing white sneakers, black choker, topless, bare chest, breasts fully exposed, nipples visible, bottomless, bare lower body, pussy fully exposed, vulva visible, arched back, ass up, lying on stomach, face blushing, shy expression, hands lightly covering breasts and buttocks, body undressing\), 1boy \(korean man, 30 years old, short clean cut black hair, sharp jawline, average athletic build, slim wristwatch, naked, completely nude, fully nude male, bare male body, no shirt, no pants, male nude, exposed male body, standing behind her, hugging her from behind, inserting, holding her hips firmly\), in a office, natural shadows, soft light leaks, natural light bokeh, 1:1 square, masterpiece, best quality, 8k, hyper-realistic, photography, film grain, japanese woman, medium shot waist-up