Why did the readers of Men's Health magazine put Jen at the top of the list? The publication speculated that it's because "funny is sexy" and her "down-to-earth persona makes her seem attainable".
The fact that she's got a rockin' hot body is just an added bonus.
The 43-year-old can afford herself a little smile though because Angelina Jolie, the woman who nicked her hubby Brad Pitt, only came in 10th.
Pipped at the post by Ms Aniston were Raquel Welch, Marilyn Monroe, Britney Spears and Madonna, while Ursula Andress, Bettie Page, Pamela Anderson and Jane Fonda also made the top 10.
Neither of Jen's own choices made the top 10, however.
She told the mag, "It's a tie between Brigitte Bardot and Gloria Steinem. But if I had to choose one, I'd say Gloria because, well, she's the full package. That's sexy."