rule 34 4 toes animal genitalia anthro balls black nose blue body blue eyes blue fur blue hair canid canine canis claws digital media artwork dragon foot tuft fur hair hindpaw hybrid kai kat knot looking at viewer male male only mammal multicolored body multicolored fur nude pawpads paws penis presenting scales sheath simple background solo toe claws toe curl toes tuft two tone body two tone fur white body white fur wolf 3572645