Stephanie Birkitt Cheated on Robert Halderman With David Letterman

The woman at the center of David Letterman's sticky situation, Stephanie Birkitt wrote in her diary that she was sexing Dave even after she moved in with Robert "Joe" Halderman, Letterman's alleged extortioner.

Dave would also drive Stephanie Birkitt to the house she shared with Robert Halderman from 2004 until recently. And after she graduated from Benjamin Cardozo Law School, Letterman offered her a job as his personal lawyer! God dayum, that's how a true player rolls! Bill Clinton promised Monica Lewinsky a job, Dave told Stephanie she could be his lawyer. Such lying, extreme opportunists!

Stephanie, 35, and Letterman, 62, even went hiking together as early as last fall. They were at David's Montana ranch with his longtime girlfriend turned wife, Regina Lasko.

David and Stephanie have no shame. They're actually perfect for each other.