Rule 34 Dev - 1:1 anus artmarshmallow book dock_(anatomy) equid equine equine_anus female friendship_is_magic genitals hair hasbro hi_res horn horse mammal my_little_pony mythological_creature mythological_equine mythology pony purple_body purple_eyes purple_hair pussy raised_tail reading smile solo tail tail_anus twilight_sparkle_(mlp) unicorn|12837639680