I didn't think they had any contact at all I mean look how shy Anna is just saying hi to Elsa at coronation if they did wonder why they didn't put it in the movie?
Not a parent by any means nor will I ever be but i'm addicted to Frozen as well! I've ask people Do you wanna build a snowman and I draw Frozen pictures a lot. I even play Elsa and Anna in my sims games!