George Trades Waitress for Actress-Ex

George Clooney could have just about any woman in the world, but there is just something about Krista Allen he can't resist.

Or so say Rush & Molloy, who report "friends" of George say he's back with Allen, whom he dated from 2002-04. He moved on to Lisa Snowden (pretty brunette) and then Sarah Larson (pretty brunette), and now he's returned to ... yes, the pretty brunette.