FURVERT!

absurd_res animal_genitalia animal_penis balls big_balls big_penis black_body black_fur canid canine_genitalia canine_penis claws fangs feral fur genitals hi_res knot male mammal muscular muscular_feral muscular_male penis purple_eyes quadruped solo spikes spikes_(anatomy)tail tail_muscles tapering_tail teeth thick_tail tochka vein veiny_penis