Random Person: "Can I pet your dog?"
Brother: "Oh yeah sure"
Random Person: "What kind of dog is he?"
Brother: "He's a Siberian Husky"
Random Person: "Does he have a blue tongue?"
Brother: "No...?"
Random Person: "Oh ok, he's got a little mix in him then."
Brother: ._. "...............ok..........."
-An Actual Conversation.
Ok the dog feature in this pic is not the same as the one in the story. This is Nenya, She is the biological niece of the dog.
I've already done a pic of her uncle, just look for the black and white husky under this tag. :P
#AlksSibsIRLpets

No, blue tongues do not indicate a pure bred.