Rule 34 Dev - 1girl 1girl 2016 abs anthro anthrofied areola black_hair breasts chain collar crossgender crouching dildo dildo_sitting dungeon equine evehly eye_mist fangs friendship_is_magic fur furry grey_fur hair hand_behind_back handcuffs high_res horn horse inside king_sombra_(mlp) mammal mane masturbation my_little_pony navel nipples nude penetration pony pussy red_eyes sex_toy shackles spread_legs spreading tongue tongue_out unicorn yellow_sclera|646138