Rule 34 Dev - canid canine collar equestria_girls female feral friendship_is_magic glasses hasbro hi_res human humanoid knot_hanging knotting leash male male/female mammal medium_breasts mewpan my_little_pony penetration sci-twi solo spike_(eg) twilight_sparkle_(mlp) vaginal_knotting vaginal_penetration zoophilia|13668258088