anal anal_penetration anus black_hair blue_eyes blue_hair brown_fur cutie_mark double_penetration ear_biting equine female feral friendship_is_magic fur group group_sex hair horse jewelry lying male mammal my_little_pony on_back penetration penis plain_background pony pussy ragingsemi sandwich_position sex straight tan_fur threesome vaginal vaginal_penetration white_background zebra zecora_(mlp)