Rule 34 Dev - 2020 4_toes 5_fingers anal animal_genitalia animal_penis anthro anthro_on_anthro bayzan big_bulge big_dom_small_sub big_knot big_penis big_testicles black_fur bow_tie bulge cabin canid canine canis chains christmas claws collar cuffs domestic_dog duo elbow_fur extreme_penetration facial_fur facial_hair fangs fingers fox fur furry genitals german_shepherd glowing glowing_eyes goatee handkerchief herding_dog holidays huge_bulge huge_cock huge_knot huge_testicles hybrid hyper hyper_bulge hyper_genitalia hyper_knot hyper_penis hyper_testicles kittykage knot knot_bulge knotting log long_fangs male mammal mane muscular night pastoral_dog pawpads penis piercing purple_body purple_fur sex size_difference snow stomach_bulge testicles toes tree verne_nicolaio were werecanid werecanine weredog werefox werewolf winter wolf wolfdog wood yaoi yellow_body yellow_fur|4039852632