Â Former reporter - and current attention-starved liar - Rita Cosby has written a book called Blonde Ambition: The Untold Story behind Anna Nicole Smith's Death.
In it, she claims that Larry Birkhead and Howard K. Stern were lovers. And this accusation isn't sitting too well with the father of Anna Nicole's baby.
"If this book is not sitting next to Harry Potter on the fiction shelf, then Rita Cosby is going to be wrapped up in one of the most expensive lawsuits ever," Birkhead said to Us Weekly. "I don't know how Cosby can print lies like that without once attempting to contact me. That's journalism 101."
One pressing question remains: why did Stern and Birkhead (pictured) attend L.A.'s Gay Pride parade in June 2005, where Anna Nicole Smith was grand marshal?
"I was a photographer," Birkhead said, denying that he and Stern are like Wentworth Miller and Luke MacFarlane. "My camera is around my neck in every picture."
Among the other allegations in the tome?
That Birkhead and Stern struck a deal giving Birkhead custody of Dannielynn in exchange for Stern being named executor of Smith's estate, worth a potential $472 million; and that Smith considered Birkhead a "sperm donor," whom she never intended to keep around.
"It's bogus," says Birkhead. "Zero truth to it."