K-Fed's EX: "Brit's Kids Don't Know Who She Is"

Shar, who likes to KEEP IT REAL

Shar with her 4 kids after lots of plastic surgery

Shar Jackson says she has been more of a mother to Sean Preston and Jayden James than their own mother, Britney Spears, lately.

That's not really saying that much, is it? I think I'VE been more of a mother to Britney's kids than she has.

Shar says she has been helping out with the two boys, who haven’t seen their mother in three weeks. She told Us Weekly that Sean and Jayden are doing well and haven’t really noticed that their mom hasn’t been around.

“They’re babies, you know, but they don’t really know who she is,” said Shar.