What a great photo. I don't know who has the biggest grin. Enjoy every moment.
With all of this snow I think we should have a Delaware Winter Olympics. Tubbing, sledding, snowball fights, snowman building, we could have it all. Looks like you found a good hill. Round two is on it's way!
You two look like you are having a blast -- what fun for both of you. We're guessing one day he'll look at the pictures and his heart will swell with a smile. Very cool.tp