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4:5 anal animal_genitalia anthro balls biped canid canine canis comic dialogue domestic_dog duo english_text erection genitals glans greyscale hi_res humanoid_genitalia humanoid_penis hybrid_genitalia hybrid_penis knot knotted_humanoid_penis knotted_penis knotting male male/male male_anthro mammal misterstallion monochrome multiple_scenes penis profanity romantic sheath text wolf