Rule 34 Dev - 2017 abs animal_genitalia animal_penis anthro avian balls beak big_balls big_penis black_fur claws equine_penis erection fur hippogryph hooves horsecock male male_only medial_ring multicolored_penis muscular muscular_male nude penis schecter simple_background solo spectrumshift standing two_tone_penis vein white_fur yellow_eyes yellow_fur|2545222328