Britney Spears has been given the perfect Mother's Day gift - a day with her kids. Thanks to continued improvements in the pop star's relationship with ex-husband Kevin Federline, the rapper/dancer has agreed to let Sean Preston and Jayden James spend May 11 with their mom.

Federline was given full custody of the kids after Spears staged a stand-off with police, emergency services officials and childcare experts when she refused to handover her sons after a scheduled visitation in January. The couple have been battling the custody order ever since, but now Federline appears to have cooled on the issue - and he's agreeing to let Spears spend more time with their sons.

A family friend tells Life & Style magazine that Federline is considering granting his ex overnight visits with the kids, after Spears filed a formal request with the courts.

The insider says, "He hasn't said yes yet, but he's considering it."

And, whereas Federline once reportedly dreaded phone chats with his ex, sources claim the couple has become friendly, with the rapper calling her his "lady" and Spears ending calls by telling her former husband that she loves him.

One pals tells Life & Style, "It's such a huge change. It hasn't been like this between them in forever."

-Britney Spears Pictures

(This news article provided by World Entertainment News Network)