No, really? It's always the one you least suspect:
"President Obama's budget guru has a secret love child -- with the woman he jilted before hooking up with his hot new fiance," the New York Post reports.
"White House budget director Peter Orszag's ex, shipping heiress Claire Milonas, gave birth to little Tatiana Zoe in New York Nov. 17. That was just six weeks before Orzsag and ABC news babe Bianna Golodryga gleefully announced their engagement on national TV and in the press."
Oh wait. It's via the Post. Grain of salt?