Michelle Trachtenberg Crushing on John Mayer?

Courtesy of Splashnews.com

Watch out, girl!

While once upon a time, we knew Michelle Trachtenberg from Harriet the Spy, she's now all grown up. And more people now know her as Georgina Sparks in Gossip Girl. With Michelle's more grown-up roles might also bring more grown-up crushes. Like the one she currently has on John Mayer?

We hope sweet little Michelle stays far away from John Mayer because we don't see how he could bring her any good. And we don't get why all the nice girls seem to be developing crushes on him.

Allegedly, both Michelle and John were at Soho house this weekend and a source told Page Six about their encounter. They say, "Michelle was bouncy and flirty. She seemed smitten with him..." But it sounded like John wasn't all over Michelle and seemed pretty non-expressive. The source also says the two have "known each other for years."

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So, maybe they were just catching up like old friends and Michelle is naturally  bouncy and flirty-seeming? We wonder how Michelle and John do know each other.

Anyway, doesn't John Mayer have a crush on Heidi Montag? Yech. Do you think Michelle Trachtenberg is smart enough to stay away from John Mayer when it comes to her love life? We hope so! Or maybe she needs to have a little chat with Jessica Simpson.