rule 34 2018 4 toes 5 fingers all fours animal genitalia animal penis anthro balls beauwolfhusky black nose blue background blue eyes blue fur blue hair canine canine penis digitigrade erection eyebrows fur gloves marking grey fur hair knot looking at viewer male male only mammal marjani markings multicolored fur neck tuft nude penis pose simple background smile socks marking solo toes vein white fur wolf yellow fur yellow penis 2823904