FURVERT!

1:1 2013 animal_genitalia animal_penis anthro anus balls biceps biped bottomwear clothing equid equine equine_genitalia equine_penis erection feral_transformation flared_penis fur genitals hair horse human human_to_feral kuma long_hair male mammal muscular muscular_anthro muscular_male nude pants paws penis simple_background solo species_transformation transformation