New York, July 11 : New mum Jamie Lynn Spears is in danger of following in sister Britney's disastrous footsteps.
According to a source, Jamie - who just gave birth to daughter Maddie Briann Aldridge at the ripe old age of 17 - lives entirely on Diet Coke.
"She only has Diet Coke in the house. How redneck is that?" the New York Post quoted the source, as saying.
As for her engagement to Casey Aldridge, the source added, "I doubt that'll ever happen. Her mama [Lynne] doesn't like him and thinks she can do better. They don't want him anywhere near [Jamie Lynn's] cash."
Britney, whom Jamie Lynn refers to as "my crazy sister," has a well-known affinity for soda and Cheetos and had her first marriage, to Jason Alexander, annulled at her mother's insistence.