Rule 34 Dev - 1girl alternate_costume animal_ears aogisa babydoll bare_shoulders bed black_hair blue_babydoll blue_eyes blush breasts button_gap cleavage commentary_request ear_covers ears_down grin hair_between_eyes hair_ornament highres horse_ears horse_girl katsuragi_ace_(umamusume) looking_at_viewer lying medium_breasts medium_hair midriff multicolored_hair navel on_back on_bed ponytail smile solo strap_slip streaked_hair tassel tassel_hair_ornament umamusume upper_body white_hair|20867329899