What did you say?

On Sunday I dressed Luke for church. He looked extra cute and I told him to go tell his dad, "I'm the stud of all studs." He went to Cory and announced, "I'm the Dud of all Duds." He has a little trouble with his "S" sound. After a little practice he was able to get it right, but the first version (although not true) was very humorous.