What is THAT in your mouth???

So I'm playing with Nate and he's giggling away and I see something whitish in his mouth so oh course I have to stick my fingers in to investigate and tada... we have a new tooth!!! Nice shiny white lil tooth on the upper, not his front teeth that he asked Santa for X-mas but on right beside it. Too bad it wasn't one more over, the canine, that would be funny. OK only funny in a scary kinda way if you have ever seen Pete's... YIKES! Is he part vampire???