1girl, 1boy, japanese woman, 21 years old, large breasts, wide hips, toned female, narrow waist, face_shape: soft round egg-shaped face, small chin, hair_color: warm brown, hair_style: long dark brown hair flowing down past shoulders, soft bangs swept to left, eyes: warm brown eyes, clear double eyelids, long eyelashes, skin: clear milky skin, light blush, bottomless, bare lower body, pussy fully exposed, wearing only black thong, bare thighs, 1boy (standing in front of her, feet touching her penis, hand grabbing penis, gripping his cock), vaginal, penetration, sex, from behind, doggy style, one hand grabbing his penis, looking away, shy expression, shy, looking down, at a office, indoor office environment, 1:1 square, masterpiece, best quality, 8k, hyper-realistic, photography, film grain, natural shadows, soft light leaks, natural light bokeh, solo focus, pov, pov hands, medium shot waist-up