Rule 34 Dev - 2016 anal anal_sex anus ass collar cutie_mark dildo dock duop-qoub equine female feral friendship_is_magic hair hi_res horn looking_back mammal multicolored_hair my_little_pony penetration purple_background pussy raised_tail red_eyes sex_toy simple_background solo two_tone_hair unicorn vinyl_scratch_(mlp)|2666143432