HUGH Hefner’s No. 1 girlfriend, Holly Madison, has a new job at Playboy, and things are about to change. The bimbonic blonde, who shares Hef with two other blondes, Bridget Marquardt and Kendra Wilkinson, is now the magazine’s junior photo editor and is looking to shake things up. “I think readers are sick of seeing the same cookie-cutter blondes,” the silicon-enhanced beauty told Page Six. “I’m looking for natural bodies. I pay attention to what readers write in - and ...