FURVERT!

5_fingers all_fours anal anal_penetration anatomically_correct anatomically_correct_genitalia anatomically_correct_penis animal_genitalia animal_penis anthro anthro_on_anthro anthro_penetrated anthro_penetrating anthro_penetrating_anthro black_nose blush bodily_fluids brown_body brown_fur burk_(benzo)canid canine canine_genitalia canine_penis canis claws collar domestic_dog dripping duo erection eyes_closed fingers fur genital_fluids genitals german_shepherd heart_symbol herding_dog knot larger_sub leash leash_pull leg_markings male male/male male_penetrated male_penetrating male_penetrating_male mammal markings multicolored_body multicolored_fur open_mouth pastoral_dog patrikthedog pawpads paws penetration penis sex signature size_difference socks_(marking)submissive teeth tongue tongue_out