rule 34 animal genitalia anthro anus balls black body black fur blue eyes canid canine dipstick tail eyebrows feet fingers fox fur genitals gloves marking glowing glowing anus green anus green inner ear fluff green pawpads grey balls grey eyebrows grey nose grey sheath happy heart inner ear fluff kwik artist leg markings male mammal markings multicolored body multicolored fur pawpads sheath silver fang furry1997 socks marking solo stripes tail tail markings toes tuft 9094829