Happy Birthday, Sean Preston Federline!

Sean Preston Federline turns five today. Five! Britney Spears really has a five-year-old son! And a four-year-old son (Jayden James' birthday was Sunday)!

Kids. They grow up so fast.

Here's wishing both of Britney Spears' lil' rascals happy birthdays. Hopefully the big celebrations help take her mind off the Fernando Flores allegations!

Those were the days.

Say what you will about her, Britney and her sons are adorable together. She's really come a long way. Click to enlarge a bunch of additional Sean Preston pictures ...