FURVERT!

2006 4_toes animal_genitalia animal_penis anthro anus balls biped blue_eyes brown_balls brown_body brown_fur brown_sheath canid canine canine_genitalia canine_penis canis caribou_(artist)claws countershading detailed erection feet fur genitals hindpaw knot looking_at_viewer lying male mammal nude on_back pawpads paws penis pinup pose sheath simple_background solo spread_legs spreading tail toe_claws toes white_background wolf