Kevin Federline's first baby mama, Shar Jackson, reacts to pregnancy news

It's baby No. 5 for Kevin Federline, as he and girlfriend Victoria Prince are expecting their first child together. So what do exes Britney Spears and Shar Jackson have to say on the situation?

Brit-Brit, who's been busy performing "Jackass" stunts and promoting her new album, has yet to comment, but K-Fed's first baby-mama is sending well wishes.

Jackson, who has two children by Federline, tells People, "Honestly, I wish them the best, without question." Adding that she's not too concerned with his day-to-day activities.

"It's just not part of my life," she says. "I've got my own family to worry about, I can't really be worried about what's going on with anybody else. Good for them, and of course I wish them well."

Jackson now has four children, and says that they're her top priority.

"People have been asking me what I think, or if I have a comment," she laughs of the K-Fed news. "And I'm like, 'Yeah, I have a comment. I need to go home and cook for my own kids!'"

We give Jackson props on maintaining civil relations with Federline, who ended their relationship shortly before the birth of their second child to begin dating Spears. He now has two young sons by the pop-star.