FURVERT!

abdominal_bulge anal anal_penetration animal_genitalia animal_penis anthro balls black_body black_fur black_nose blue_eyes blue_markings bodily_fluids canid canine canine_genitalia canine_penis canis cum duo fur genital_fluids genitals green_eyes grey_body grey_fur half-erect hi_res howlfei howlfeiwolf knot male male/male mammal markings nipples open_mouth pecs penetration penis precum sheath simple_background smile teeth tongue tongue_out white_body white_fur wolf