FURVERT!

animal_genitalia animal_penis balls black_body black_fur black_pawpads brown_hair canid canine canine_genitalia canine_penis canis claws digitigrade erection feral feral_transformation fluffy fur fur_growth genitals grey_body grey_fur growth hair human human_to_feral humanoid inside_out_transformation knot magic male mammal mid_transformation open_mouth pale_skin panicking pawpads paws penis quadruped simple_background solo species_transformation surprised teeth tongue transformation transformation_ring werewolfaboo wolf