Rule 34 Dev - animal_genitalia animal_penis anus ass balls black_hair bluntwhiskey equid equine equine_genitalia equine_penis fangs feral feral_only friendship_is_magic fur furry grey_body grey_fur hasbro hooves horn horse king_sombra_(mlp) male male_only mane my_little_pony mythological_creature mythological_equine mythology pony quadruped red_eyes smile smirk solo tail unicorn|12053740840