Luker or Wukee

Here is a picture of Luke with his eyes wide open. The girls for some reason refuse to call anyone by their name. They are always making up nicknames for people. Before Luke was born Anna was calling him Lukee. Only she has trouble saying her L's so it come out sounding like Wukee. Isabelle has recently started calling him Luker. So, between the two girls, he may never be called by his name.