Britney Spears reportedly has a new bone to pick with her semi-estranged mother Lynne-her baby sister Jamie-Lynn. Celebrity tattles claim Lynne has forbidden her falling star daughter from interacting with her adoring kid sis.

It all started when the family recently tried to mend fences during a trip to Las Vegas. Lynne felt that Boozing Britney was adversely influencing her baby:

“At night, it was Lynne the babysitter, and Britney wanting to go out and party. She had Jamie Lynn trying on her clothes, strutting around, and then saying they were taking Jamie Lynn out with them, but Lynne put a stop to that,” says a source.

Lynne released Mama Bear Hell on them and demanded that J.L be left out of Brit’s ‘Party Over Here’ Social Calendar.

“She doesn’t want Jamie Lynn getting into drugs, or going down the wrong path. Ever since Britney’s meltdown and rehab, she has closely monitored the interaction between Britney and Jamie Lynn, and has told Jamie Lynn flat out that until Britney ‘gets better,’ she should ’stay away from her’ unless she is there to supervise.” It’s one of the things that caused the rift between mother and daughter in the first place, “Britney doesn’t like to be told what to do,” says the source, “you want her to go left, she’ll go right, she’s just that way.”