One of the best things about having tween aged kids is the fact that they know that Daddy is Santa. They will still “pretend” for Mommy. I love that they are still young enough to amuse me and sing silly songs. I really love this age. I am sure you will enjoy their rendition of ‘Mommy Kissing Santa Claus’, and if you don’t enjoy it, then please “pretend” for the sake of their Mommy!