Rule 34 Dev - abs anthro biceps big_penis blue_fur bodybuilder dirtyshark echidna fur furry furry_only hedgehog huge_cock interspecies knuckles_the_echidna leostar male male_only mammal masturbation monotreme multiple_males muscle muscles no_humans pecs penis sega sonic_(series) sonic_the_hedgehog sonic_the_hedgehog_(series) straight_hair yaoi|71497152