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5_fingers anthro anthro_on_anthro anthro_penetrated anthro_penetrating anthro_penetrating_anthro balls biped blush canid canine canis claws dobermann domestic_dog duo erection fingers fur genitals glans hair hi_res humanoid_genitalia humanoid_penis interspecies kingdraws male male/male male_penetrated male_penetrating male_penetrating_male mammal murid murine penetration penis pinscher rat rodent sex tail