Rule 34 Dev - 2016 animal_genitalia animal_penis balls blush bondage bound brainsister changeling closed_eyes comic duo equine equine_penis erection fangs female feral fluttershy_(mlp) friendship_is_magic hair hat heart horn horsecock inside long_hair lying male mammal my_little_pony nurse_hat on_back oral penis restrained rope sex spread_legs spreading straight sweat vesairus wings|2161999328