1boy, 1girl \(japanese woman, 21 years old, shoulder-length dark brown bob with inward c-curl, large breasts, wide hips, toned female, narrow waist, wearing only black bra, bare shoulders and midriff\), 1boy \(korean man, 30 years old, short clean cut black hair, sharp jawline, average athletic build, slim wristwatch, completely nude, fully nude male, bare male body, no shirt, no pants, male nude, exposed male body\), standing in front of her, hands on her hips, sex from behind standing, in an office, from below, low angle, 1:1 square, masterpiece, best quality, 8k, hyper-realistic, photography, film grain, natural shadows, soft light leaks, natural light bokeh, bust shot, close-up of face