Credit: Tiffany Rose/; Donato Sardella/

They've had their differences over the years, but Shar Jackson has nothing but love for ex Kevin Federline (father of her 8-year-old daughter, Kori, and 6-year-old son, Kaleb).

As Federline awaits the arrival of baby No. 5 with girlfriend Victoria Prince, Jackson -- who has two children from a previous relationship -- tells that "if it's true, best wishes!"

(A rep for Federline, 33, had no comment.)

Former backup dancer Federline also has two sons -- Sean Preston, 5, and Jayden James, 4 -- with ex-wife Britney Spears. Though he and the pop star, 29, had a lengthy court battle over their sons' custody when they divorced in 2007, Federline insists things are better than ever.

"I have come a long way," he told Access Hollywood last year. "All of us whole family. It's gotten so much better from where we were."