admire groove (umamusume), umamusume, absurdres, artist request, commission, highres, second-party source, 1boy, 1girl, anger vein, animal ears, blue eyes, blush, breasts, grabbing another's breast, groping, heterochromia, horse ears, horse girl, horse tail, large breasts, mole, mole under mouth, nipples, nude, purple eyes, sex, sex from behind, steaming body, striped hair, swept bangs, tail, white background