Rule 34 Dev - 2020 animal_genitalia animal_penis anus balls digital_media_(artwork) draft_horse dream_merchant equid equine equine_anus equine_penis erection feathering feral fur genitals hidalgo_(fursona) hooves horse male mammal mottled mottled_anus mottled_genitalia mottled_penis penis raised_leg solo white_tail|7610649208