Rule 34 Dev - animal_genitalia animal_penis anthro balls big_breasts breasts canid canine canine_penis canis erection fur genitals goo_creature grey_body herm incorgnito intersex knot looking_at_viewer mammal metal metallic metallic_body nipples nude penis presenting presenting_pussy pussy silverfang_the_steel_wolf simple_background solo spread_legs spreading wolf|4890926280