Britney Spears is now best friends with the man who took her children and nearly ruined her career.

“Kevin has been great, as always. He and Britney have become best friends. She knows how much he cares about the boys and he knows the same is true of her,” Brit’s younger sister Jamie Lynn told Hello! this month.

The former backup dancer has been accompanying Britney on her sold-out Circus Tour to help take care of the pair’s toddler sons, Sean and Jayden.

“Kev also gets on great with mom and dad, so it’s one big happy family pulling together. Everyone just wants to make sure that this tour is successful for Britney and that she gets the comeback she deserves,” a second source added.