rule 34 2020 absurdres anal anal sex animal genitalia animal penis arms bound ball gag blue background blue eyes bound collar cutie mark disembodied penis duo equid equine equine penis feral friendship is magic fur furry futaglim futanari gag genitals green mane green tail half closed eyes hasbro highres horn male mammal mane medial ring multicolored mane multicolored tail muzzle object muzzled my little pony narrowed eyes penis phenyanyanya purple body purple fur purple mane purple tail signature simple background sound effects starlight glimmer suspension tail wraps testicles unicorn wraps 4076617