Big Boys and Little Boys

Almost 4 years ago, we brought 2 month old Owen to visit 1 year old Jack, the son of our good friends Erin and Chris:

This weekend, Erin drove out to visit with a nearly 5 year old Jack, and newly 1 year old Theo, to visit with Owen and Eli:

For some reason these photos made me realize how fast time really is flying! When did our babies get so big?!