Rule 34 Dev - anatomically_correct anatomically_correct_penis animal_genitalia anus ass balls big_macintosh_(mlp) cutie_mark earth_pony equine erection feral freckles friendship_is_magic fur green_eyes hair horse horsecock looking_at_viewer male male_only mammal mane metalsmile my_little_pony penis pony red_fur solo|1885965344