Britney Spears is not allowed to handle her eight-month-old stepson Kaleb, because the baby's mother feels the pop diva is not "experienced" enough.

Spears' husband Kevin Federline became a second-time father with Kaleb two months before he walked down the aisle with the pop diva. While Federline's ex-girlfriend Shar Jackson allows the newlyweds to look after her two-year-old daughter Kori, she refuses to leave them with baby Kaleb.

"As a mom, I won't put my baby in the hands of somebody who can't handle it. Britney has no experience with babies. Kevin's a great dad, but his only experience is with Kori, and he had my help the whole time," she said.