Rule 34 Dev - anthro anus ass back_muscles balls big_balls big_butt big_macintosh_(mlp) borzoibeans equid equine friendship_is_magic genitals hair hasbro hi_res horse male male_only mammal mcintosh my_little_pony penis pony ponytail puffy_anus red_body solo speech_bubble tattoo testicles text|9540464048