rule 34 4 toes 5 fingers animal genitalia animal penis anthro balls big balls black body black fur blue penis blush blush lines bodily fluids canine penis chest tuft claws dialogue digitigrade erection feet fingers fur genital fluids genitals heart marking heterochromia hi res hobkin ketei knot male male only masturbation motion lines outside pancake oc penile penile masturbation penis precum purple body purple fur sheath solo text thick thighs toe claws toes tuft wide hips 7003695