K-Fed Up! Pay Up!

It was only a matter of time!

Kevin Federline is said to be angling for more money from Britney Spears.

And he deserves it!

K-Fed currently gets $15k a month from Britney for child support, but that amount was assuming a 50/50 custody split. Federline now has the kids 6 nights a week and almost every day.

He’s got to pay for court-appointed security and other expenses that don’t come cheap.

Plus, Brit Brit makes a reported $700k a month. Share the wealth!