2015 animal anus bed blue_eyes blue_hair clitoris duo equine female friendship_is_magic fur green_eyes hair hooves horn horse inside lumineko magic mammal masturbation multicolored_hair my_little_pony open_mouth pink_hair pony pussy pussy_juice rarity_(mlp) saliva sibling simple_background sisters straight_hair sweetie_belle_(mlp) teeth tongue tongue_out two_tone_hair underhoof white_fur yuri