Rule 34 Dev - 2016 alicorn antlers atane27 bed bedroom black_hair blush collaboration cunnilingus discord_(mlp) draconequus duo equine eyelashes fangs feathered_wings feathers female feral fetlocks friendship_is_magic fur hair half-closed_eyes hooves horn inner_ear_fluff inside long_hair lying male mammal membranous_wings multicolored_hair multicolored_tail my_little_pony on_back on_bed open_mouth oral pillow princess_celestia_(mlp) purple_eyes pussy red_eyes sex spread_legs spread_wings spreading stepandy straight tongue tongue_out vaginal_penetration white_feathers white_fur window wings yellow_sclera|2450481040