Rule 34 Dev - 2015 ankle_cuffs anthro arms_behind_back belt bondage book boots bound chains choker clothing collar equine female femdom femsub footwear friendship_is_magic gloves inside mammal muzzle_(object) muzzled my_little_pony nipples nude quakehoof rope spreader spreader_bar story trixie_(mlp) twilight_sparkle_(mlp) yuri|2122278688