Rule 34 Dev - 2017 2boys anatomically_correct anatomically_correct_anus anus balls bound brand bridle cum cum_in_mouth cum_inside cumshot detailed_background dreamworks ejaculation equine equine_penis fellatio feral feral_domination feral_on_feral fur gay hooves horse horsecock horseshoe lying male male_only mammal mustang oral orgasm penis raised_tail rope rufciu sex signature spirit:_stallion_of_the_cimarron spirit_(character) testicles yaoi|3004501680