Britney Spears may be semi-estranged from her pregnant sixteen year old sister, Jamie Lynn Spears, but the psychotic pop tart is still warning the mother-to-be against a walk down the aisle. “Whatever you do, do not get married! You are too young and you will ruin your life! Do not make a mistake and end up like me!”

According to The National Enquirer, Britney gave her sis the chilling advice during a frantic recent phone call:

“When she got Jamie Lynn on the phone, Britney started to cry and so did Jamie Lynn. Britney told her: ‘Do not marry Casey. Look at the position I’m in.’”

“She told Jamie Lynn that she’ll always be there for her-and when she’s had it with Lynne, Jamie Lynn can come live with her.”