According to Page Six, the actress, 30, revealed in her memoir, Things I Should Have Said, the pop star, 40, sent her a message trying to make amends after the two had been at odds for years, as Britney felt Jamie Lynn wasn't there for her during her 13-year conservatorship.
“In a recent text from my sister, she stated herself: ‘I know it’s not your fault and I’m sorry for being so angry at you. Although I’m your big sister, I need you more than you need me and always have,'” the Zoey 101 alum claimed in the book. It's unclear when exactly Britney sent the alleged text.
“I pray for the day she shares these words with the world,” the Sweet Magnolias actress wrote of her sister's apology. “I have no control over anything the media reports and cannot be held responsible for something I have absolutely no control over.”
In the highly anticipated book, Jamie Lynn also detailed the day Britney gave the groundbreaking court testimony, in which the "Lucky" singer made shocking allegations about the abuse she allegedly endured by her family members. During her June testimony, the Princess of Pop insisted her family "should be in jail" for benefitting from her conservatorship, which was terminated in November.
As OK! previously reported, Jamie Lynn opened up on Alex Cooper's Call Her Daddy podcast about the impact of growing up with a global music star as her sibling.
"I thought it was the coolest thing, but it was in real-time learning. In first grade, I just didn't know," the mother-of-two said about having a famous family member. "I just thought there's famous people and then there's us. Someone just said my sister is like Mariah Carey."
However, Jamie Lynn noted it was around the time she was 11 years old when Britney's personality began to change — and there was nothing she could do to help. "I think this was a brilliant young woman who was going through a hard time. If she couldn't stand up for herself, then somebody should have. I wasn't an adult then, I couldn't," she told the podcast host.
The former child star also touched on constantly being overlooked throughout her life, as she made sure she didn't do or say anything that could put Britney in "a bad light." And while her memoir may have further strained her relationship with the songstress, Jamie Lynn declared she wanted to share her side of the story so her own children would know how to use their voices.
"It doesn't matter who your sister is, or who your family member is, or who whatever your relationship is with, if something has caused you pain, or this is your experience, nothing should diminish your experience," she concluded.