Britney's Kids Have a Whale of a Time

5/9/2008 11:00 AM PDT BY TMZ STAFF
Since Kevin Federline has been in charge of Sean Preston and Jayden James, their lives are no longer a zoo -- they're an aquarium.
K-Fed
With a nanny and security in tow, K-Fed took the kiddies to the Long Beach Aquarium of the Pacific on Wednesday.

Kind of interesting since they already live in a fishbowl.