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Kevin Federline is trying to secure a bigger monthly bag for his youngins.

Britney Spears‘ ex-husband has filed legal docs through his celebrity divorce lawyer Mark Vincent Kaplan seeking in increase in his monthly child support payments because their boys, Sean and Jayden, are getting older.

Not to mention, both Britney and Kevin’s “financial circumstances” are much different than when the initial child support order was established.

According to E! News, “A letter asking to meet and confer on the issue was sent to Britney’s representative on Thursday.”

Britney just wrapped her to Vegas residency and is preparing to embark on her “Piece of Me Tour” so she definitely has the coins.