FURVERT!

4:3 animal_genitalia animal_penis anus balls black_anus black_claws black_nose black_pawpads black_penis black_tail_tip canid canine canine_genitalia canine_penis claws detailed digitigrade dipstick_tail erection feral fluffy fluffy_tail fox fur genitals grey_body grey_fur grey_tail heatherwolf hi_res knot knotted_penis male mammal markings pawpads penis quadruped semi-realistic solo tail tail_markings text url whiskers white_balls yellow_eyes