Britney Spears has slammed her little sister in another shocking social media post, despite Jamie Lynn's pleas to end their public feud.
In a since-deleted Instagram post, Britney recalled returning to her family home after her high profile break up with Justin Timberlake and being "shocked" at how her younger sibling was living.
"I flew home to Jamie Lynn on the couch watching her TV shows right after Justin and I broke up… I was a ghost there!" she wrote.
"I had worked my whole life and I didn't know how to be served by Mamma. Sit there and get served the chocolate milkshakes with the perfectly crushed ice with the secret chunky sugar meanwhile Jamie Lynn is 12, she indulges with the TV for hours then goes to lay out on a raft at the pool. I'm in shock because this was never my life!"
The 'Toxic' singer said at the time, Jamie Lynn had just landed her own Nickelodeon show - Zoey 101 - and questioned why the pre-teen had been able to secure such a big role, perhaps inferring it had something to do with her famous older sister.
"All I remember saying was 'DAMN! How the hell does a 12 year old land a Nickelodeon show?' HMMMMMMMM…. Well I never got my iced chocolate drink!" Britney wrote.
"I mean yeah, I'm grown up right? But then maybe I might need a little support."
Remembering another incident in which People Magazine visited her house to interview her for a cover story, Britney continued: "The people showed up and as Jamie Lynn says, I was scared! F**k yeah!"
"My Mamma [sic] was on pain medication and could barely hold a conversation in the house because her and my dad split and she was more messed up than anything! I remember her sitting on the floor in a conversation and she never got up.
"I'm sorry Jamie Lynn, I wasn't strong enough to do what should have been done…slapped you and Mamma right across your f**king faces!"
Britney deleted the post within an hour.
The rift between the Spears sisters has been a family issue for some time, however the war of words has intensified since Jamie Lynn began promoting her upcoming memoir Things I Should Have Said, in which she accuses Britney of chasing her with a knife and describes her past behaviour as "erratic" and "paranoid".
Despite begging Britney to "just call her" and "handle this privately like sisters should", Jamie Lynn went on to appear on the Call Her Daddy podcast this week, where she continued to elaborate on the allegedly toxic family dynamic.
Jamie Lynn broke down in tears while discussing living in her famous sister's shadow - prompting another jab from Britney in a separate Instagram post where she wrote: "I didn't get to cry… I had to be strong…TOO STRONG."
