rule 34 2016 animal genitalia animal penis anthro balls biped black fur black nose blue eyes blue fur blue penis blue tongue blush brown fur canine canine penis detailed background dipstick ears dope dingo erection fox fur gloves marking hammock hands behind head hybrid knot kokkuri tanuki lying male mammal markings multicolored fur multicolored tail navel neck tuft on back open mouth outside penis precum relaxing sheath signature socks marking solo spread legs spreading tan fur tanuki teeth tongue tuft 2851788