AceShowbiz - It's a big loss for Britney Spears. The pop star has been ordered to pay $110K to ex-husband Kevin Federline in their ongoing child support battle for their sons, 12-year-old Sean Preston, and Jayden James, 11.

$100K will go toward Kevin's legal "costs and fees," according to court documents. Meanwhile, the remainder is set to be given to Benchmark Resolution Group, a dispute resolution services company.

"This was an initial contributive payment," Kevin's attorney, Mark Vincent Kaplan, says to Entertainment News about the new ruling. "If Britney and the conservators continue to fight tooth and nail about turning over any financial information, this will not be the last fee order they're ordered to pay me on Kevin's behalf."

He continues, "It's puzzling why they're putting so much energy into fighting the disclosure of her finances but I'm not deterred. We will get there eventually, it's just a question of how much they want to cost themselves creating speed bumps on the road to the ultimate destination."

When it comes to what will happen next, a source reveal, "The next few hearings they will be reporting to a private settlement judge. The private judge will help resolve any discovery issues to see whether or not he can get the parties to agree on some interim findings that would avoid all-out, hand-to-hand litigation combat."

Britney already pays Kevin $20,000 per month for care of Sean and Jayden, but Kevin seemingly thinks that it's not enough "given that the kids are older and the financial circumstances of the parties are significantly different than when the child support was originally resolved." He reasons that the "Toxic" hitmaker now is worth a lot more compared when the decision was made, while his income decreases significantly, adding that he only earns $3,000 per month.