FURVERT!

4_toes animal_genitalia animal_penis anus balls blue_eyes brown_body brown_fur butt canid canine canine_genitalia canine_penis canis collar day detailed_background domestic_dog drmax dutch_angle erection eyebrows eyelashes feet feral fur genitals knot male mammal outside pawpads penis presenting presenting_hindquarters sky snow solo spiked_collar spikes toes