Rule 34 Dev - 2013 ass blue_fur blush book bottomless bra breast_expansion breasts butt_expansion closed_eyes clothing comic duo equine female friendship_is_magic hair heart horn horse huge_ass huge_breasts inside large_ass large_breasts library long_hair magic multicolored_hair my_little_pony nipples no_symbol pegasus pony purple_fur purple_hair rainbow_dash_(mlp) rainbow_hair sweat teeth twilight_sparkle_(mlp) underwear unicorn vale-city wings|312337