FURVERT!

2017 animal_genitalia animal_penis anthro anus asher_the_firefox back_muscles backsack balls butt canid canine canine_genitalia canine_penis collar erection fox fur genitals knot looking_back male mammal multicolored_body multicolored_fur penis penis_backwards perineum presenting presenting_hindquarters red_body red_fox red_fur solo true_fox twinkle-sez white_body white_fur