FURVERT!

animal_genitalia animal_penis anus balls black_body black_fur black_sheath_slit blue_eyes brown_anus brown_balls brown_body brown_eyes brown_fur canid canine canine_genitalia canine_penis canis closed_sheath_slit domestic_dog erection feral fur genitals german_shepherd glistening glistening_eyes herding_dog heterochromia hi_res knot knotted_penis kodaac male male_feral mammal model_sheet open_mouth outside pastoral_dog penis red_penis sheath sheath_slit side_view solo tan_body tan_fur tan_sheath tongue tongue_out whiskers