FURVERT!

3:5 animal_genitalia animal_penis anthro anus balls butt equid equine equine_genitalia equine_penis genitals hair half-erect hi_res horse horseshoe looking_at_viewer looking_back looking_back_at_viewer male mammal medial_ring penis presenting presenting_anus rear_view simple_background solo spread_anus spread_butt spreading tail unknown_artist white_background