FURVERT!

1:1 animal_genitalia animal_penis anthro anthro_to_feral balls balls_expansion big_balls big_penis big_sheath brown_body brown_fur brown_hair cafet'zin cafet'zin_(artist)canid canine canis digitigrade domestic_dog equid equine equine_genitalia equine_penis expansion feral_transformation fur genital_expansion genitals green_hooves green_nose green_paws green_penis hair hi_res hooves horse huge_balls huge_penis hybrid_genitalia hybrid_penis hyper hyper_balls hyper_genitalia hyper_penis knot knot_in_sheath knotted_equine_penis knotted_penis male mammal mid_transformation penis penis_expansion potion shaded sheath signature simple_background simple_shading solo spread_legs spreading tan_body tan_fur thick_thighs transformation transformation_by_substance worried worried_look