Britney Spears ruined Shar Jackson's life

Kevin Federline's ex-lover Shar Jackson claims his marriage to Britney Spears ruined her family's life.

Shar - who has two sons, four-year-old Kori and two-year-old Kaleb, with Kevin - is glad he has split from the 'Toxic' singer because it made her life a living hell.

Shar, 30, said: "When they were together, somebody was always at my door with a camera wanting to know what I thought.

"My older children, Cassie and Donnie, were always being asked about Britney, even by their teachers. They've had to change schools twice.

"Once they separated, nobody had to ask me anymore about something Britney did. That made life easier for me and my kids. There were a lot of innocent people affected by their relationship.

"I even had to give my dog away to my grandma - because I'd named her Britney way before Kevin got together with her.

"I had a bunch of dogs named after pop stars, but I didn't want to be calling that name anymore."

Shar said she always knew Kevin's marriage to Britney wouldn't last.

She said: "I knew Kevin would get to be Kevin again and have his life. Britney's whole life is not realistic; it's a huge fantasy. And not everybody wants that fantasy."

Britney, who has two sons with Kevin, filed for divorce last November after two years of marriage.