KEY POINTS:
Kevin Federline says he has been on full-time daddy duty since getting custody of his two toddler sons.
"I spend most of the day chasing my kids around the house," he said. "Their needs define my schedule every day."
Federline has had sole custody of Sean Preston, 2 1/2, and Jayden James, 18 months, since early this year after months of bizarre behaviour by his ex-wife, Britney Spears.
"It is so very important to me that my children will always know and never question, that no matter what happens, they have a mommy and daddy who love them very much," Federline, 30, said.
Last week, Spears was ordered by a Los Angeles court commissioner to pay Federline US$375,000 ($466,000) to cover his attorney fees in their child-custody dispute. Federline also has a son and daughter with ex-girlfriend Shar Jackson.
"I will always love the mothers of my children and I will always be there for both of them," Federline says.
"I believe that any good energy I put out there brings more good energy into my own life."
