John Mayer's Wondering Penis Was The Culprit

The Chicago Sun-Times is reporting the real cause of the Jennifer Aniston-John Mayer break-up, not that we expected it to last long anyways:

Apparently, Aniston gave Mayer a "three strikes and you're out" ultimatum -- after learning about his "quickie" flings with a cocktail waitress and a promoter's assistant for his concert tour.
That was two strikes. Another dalliance, with a groupie, was the final straw for Aniston.
A longtime major Hollywood studio exec -- and good Aniston buddy -- adds this: "Above everything else, Jennifer is looking for stability and loyalty in a relationship. She still is hurting from losing Brad [Pitt] to Angelina [Jolie] -- even after all this time."