Watch: Kevin Federline Shares Concern for Britney Spears' "Situation"Britney Spears is focused on family till the world ends. After her ex-husband Kevin Federline expressed concern for her "situation," the "Toxic" singer shared an eyebrow-raising message encouraging her followers to build a chosen family if they feel disrespected by their given one. "Honor thy mother and father, but always protect your heart," Britney wrote on Instagram Oct. 14 alongside a photo of the bottom of the ocean. "Only honor them if they have sacredly honored you !!! If not, you find a new family." Hours before Britney's cryptic Instagram post, Kevin-with whom she shares sons Sean Preston Federline, 20, and Jayden James Federline, 19-made headlines after an excerpt from his upcoming memoir You Thought You Knew (out Oct. 21) detailed how the singer would allegedly watch their sons sleep while holding a knife. "They would awaken sometimes at night to find her standing silently in the doorway, watching them sleep - 'Oh, you're awake?' - with a knife in her hand," he wrote in a passage published in The New York Times Oct. 14.. "Then she'd turn around and pad off without explanation." readKevin Federline Says Britney Spears Would Stand in Sons' Room With "Knife in Her Hand"Kevin-who is also dad to kids Kori, 21, and Kaleb, 19, with ex-fiancée Shar Jackson, as well as Jordan, 12, and Peyton, 9, with wife Victoria Prince-also noted that it's becoming "impossible to pretend everything's OK" with Britney, whose 2008 legal conservatorship with her dad Jamie Spears ended in November 2021 following the viral "Free Britney" movement. (Since the conservatorship ended, the 43-year-old and her father have been estranged.) Hahn Lionel/ABACA/Shutterstock"The truth is, this situation with Britney feels like it's racing toward something irreversible," he continued. "From where I sit, the clock is ticking, and we're getting close to the 11th hour. Something bad is going to happen if things don't change, and my biggest fear is that our sons will be left holding the pieces." In response, Britney's rep slammed Kevin's allegations and described his memoir as an opportunity to benefit from his past relationship with her. "With news from Kevin's book breaking, once again he and others are profiting off her, and sadly it comes after child support has ended with Kevin," the rep told E! News in an Oct. 14 statement. "All she cares about are her kids, Sean Preston and Jayden James and their well-being during this sensationalism. She detailed her journey in her memoir [The Woman in Me]." Read on for many of the revelations Britney shared in her 2023 memoir. Brad Barket/Getty ImagesFirst Kiss With Justin TimberlakeBritney Spears met Justin Timberlake when they were Mouseketeers on Disney Channel's The Mickey Mouse Club in the early 1990s along with Christina Aguilera and slightly older talents including Keri Russell, Ryan Gosling and Tony Lucca. Though it would be some years before they dated, falling for each other when she went on tour with *NSYNC, Britney writes that she and Justin shared their first kiss while playing Truth or Dare during a cast sleepover with-insert irony here-a Janet Jackson song playing in the background.

Kevin Mazur/WireImageBritney Had an Abortion While Dating Justin TimberlakeAmong the devastating low points Britney describes about dating Justin, she shares that she had a medical abortion because his position was that they were both too young to become parents. She underwent the process at home, she writes, recalling Justin lying on the bathroom floor with her and strumming his guitar during what she calls "one of the most agonizing things I have ever experienced in my life." She still isn't sure if she made the right choice, adding, "If it had been left up to me alone, I never would have done it. And yet Justin was so sure that he didn't want to be a father." E! News reached out to Justin's rep and did not immediately hear back. But as various Justin-centric anecdotes in Britney's book made headlines ahead of its release, a source shared that the 42-year-old is working on new music, plus he and wife Jessica Biel are feeling great and keeping busy with sons Silas, 8, and Phineas, 2.

James Devaney/WireImageJustin Dumped Her Over Text MessageAccording to Britney, Justin is in the club of celebrities who've ended relationships with the equivalent of a digital Post-It. She was so "devastated," she recalls, she "could barely speak for months." Britney went back home to Kentwood, La., to recover-and, post-breakup, she writes, Justin flew out there to personally deliver a letter he wrote and had framed that concluded, "I can't breathe without you."Kevin Winter/Getty ImagesThe Demoralizing Assumption That Britney Cheated on JustinRecalling the insinuations in Justin's "Cry Me a River" video that she had cheated on him, Britney writes of having to deal with the fallout, feeling "comatose in Louisiana" while her ex was "happily running around Holly