Source: Britney Spears is Jealous of Victoria Prince, Makes Sean Preston & Jayden James Spy on Kevin Federline

This hilarious, made-up celebrity gossip story comes to us courtesy of the National Enquirer and Showbiz Spy. It's important to consider the source.

Britney Spears is so desperate, these venerable publications state, to know more about Kevin Federline's deadbeat girlfriend Victoria Prince, she has asked her two young children, Sean Preston and Jayden James, to "spy" on the couple.

The singer - who divorced Federline in 2007 - is said to be so jealous that she has Sean Preston, 3, and Jayden James, 2, to report back on what their father gets up to with Prince, a six-foot-tall blonde and former volleyball standout.

"Britney has asked her boys what Victoria Prince is like and if she spends the night," says a source. "She has also asked her bodyguards to milk information out of Kevin's bodyguards and quizzed his nanny and friends."

"She's been texting people, asking what's up with him and Victoria."

As for K-Fed - who the story says is aware Britney wants him to father her third child (?!) - he is enjoying his ex-wife's anguish over his new romance.

"Kevin says that when [Britney Spears] tells him she doesn't care if he dates, she says it with a lot of emotion, like she really does care. It pleases him that she is jealous," says the source. "He wants her to want him back."

Click to enlarge some recent pics of K-Fed and V-Prince ...