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3:4 absurd_res anal anal_knotting anal_penetration animal_genitalia animal_penis anthro balls border_collie canid canine canine_genitalia canine_penis canis collie domestic_dog duo fangs flashlight genitals herding_dog hi_res knot knotting lying male male/male male_penetrated male_penetrating male_penetrating_male mammal mythological_canine mythological_creature mythology on_back pastoral_dog penetration penis sex sheath sheepdog skuru_(character)teeth werecanid werecanine werecreature weremlems werewolf white_sheath wolf