An explosive tell-all book about Anna Nicole Smith's sad demise alleges the two men who battled for custody of her baby girl and control of her fortune were gay lovers. The bombshell allegations about the steamy relationship between the former Playboy Playmate's longtime companion Howard K. Stern and her baby's biological father, Larry Birkhead, come to light in "Blonde Ambition: The Untold Story Behind Anna Nicole Smith's Death." Sordid passages in the soon-to-be released book by former MSNBC journalist Rita Cosby describe how Anna Nicole and her friend allegedly caught Stern and Birkhead with their shirts off and their pants...