1girl, solo, japanese woman, 21 years old, large breasts, wide hips, toned female, narrow waist, warm brown shoulder-length long hair with bangs falling to the left, ear-pierced hair style, sitting on the floor, leaning back, legs spread apart, bottomless, bare lower body, pussy fully exposed, inserting a dildo into vagina, vagina, penetration, using hands to form a 'V' shape around her crotch, rubbing her vulva softly, shy expression, looking away from viewer, blush, office background, standing left, 1:1 square, masterpiece, best quality, 8k, hyper-realistic, photography, film grain, natural shadows, soft light leaks, natural light bokeh, medium shot waist-up