Rule 34 Dev - 2015 alicorn duo equine erection fellatio fellatio_from_feral female feral friendship_is_magic hair horn human human_on_feral interspecies male male_human/female_feral male_on_feral mammal mastgrr my_little_pony oral penis purple_eyes purple_hair sex straight twilight_sparkle_(mlp) vein veiny_penis wings zoophilia|1933911448