Larry Birkhead is threatening to sue Rita Cosby, former MSNBC and Fox News host, over claims she is making in her book Blond Ambition: The Untold Story Behind Anna Nicole Smith’s Death, which is set to be published next week.

Rumors are swirling about the book, Blond Ambition: The Untold Story Behind Anna Nicole Smith’s Death, due out next week. TMZ has heard Cosby will say she has documents that prove Larry Birkhead essentially bought the baby from Howard K. Stern. The publisher is mum until next Tuesday.

Today, Birkhead told TMZ, “If that’s what’s in her book, then she’ll be sued. And on top of that, there will be other individuals sued over confidential information in my custody case.”

I wish they would leave Larry and Dannielynn alone for at least a couple of years. I use to be a fan of Cosby, but it seems that she can’t hold down a job with any major news network. Most news host don’t make it back to the top after writing a tabloid book like Cosby is doing.

The claim in the book appears to be that Birkhead and Howard K. Stern were gay lovers.