The 42-year-old 'Toxic' singer's boys - Sean Preston, 18, and Jayden James, 17, who she had with her 46-year-old former husband Kevin Federline - moved to Hawaii with the DJ and his wife Victoria Prince, 41, plus their two children - Peyton, 10, and 12-year-old Jordan - in 2023.
Speaking after it was reported Britney enjoyed a Mother's Day phone call this year with her sons after a long period of estrangement, Kevin's attorney Mark Vincent Kaplan told Page Six: "Obviously a reconciliation or reunification is somewhat complex and can be a process that takes some time.
The lawyer denied widespread reports Britney had recently travelled to Hawaii to reunite with her boys.
Mr Kaplan added: "While Kevin supports the boys having a relationship with their mother and is glad that the boys did finally have a phone conversation with her around Mother's Day, the reports that she flew to Hawaii and met with them are inaccurate."
It is thought at the time of her son's move to Hawaii Britney did not object.
In June, Kevin - who split from Britney in 2007 after three years of marriage - denied he had relocated to the holiday island to take advantage of a legal loophole that would extend Britney's child support obligations.
He insisted his wife landed a job offer at a university, while he had DJ opportunities.
It was reported in May 2023 by TMZ Britney had not seen her boys in "well over a year" as Sean and Jayden were apparently unhappy and embarrassed about their mum's habit of stripping off for her raunchy social media posts.
And in 2022, Jayden said he and his brother hadn't seen their mother in months.
He added: "I just want her to get better mentally. When she gets better, I really want to see her again."
Kevin has largely maintained primary custody of the boys due to Britney's controversial 13-year conservatorship, which left her life and financial affairs and decisions in the hands of her father before it was ended in November 2021.
In her 2023 memoir 'The Woman in Me', Britney said she "went along" with the binding agreement so she could have access to her sons, saying in the book:
"Because I played by the rules, I was reunited with my boys."