1boy, 1girl, animal_ears, animal_hood, animal_print, bell, blonde_hair, blush, cow, cow_boy, cow_ears, cow_girl, cow_horns, cow_print, cow_tail, cowbell, green_eyes, hood, horns, legwear_garter, long_hair, looking_at_viewer, milk, open_mouth, original, rii_(pixiv11152329), short_hair, siblings, socks, tail, thighhighs, twins