Is Leighton Meester Dating Justin Long?

Chic meets geek? Word on the street is that "Gossip Girl" fashionista Leighton Meester and adorable actor Justin Long might be (dare we say it?) a thing. We didn't see it coming either, but the more we think about it, this could be totally adorable—and besides, since when do PDA lie?

People reports that the pair were spotted holding hands (go ahead, let your inner fourth grader gasp) at La Poubelle in Hollywood where they were dining together. And we're not talking buddies grabbing a quick bite to eat—according to reports, the meal lasted for two hours and Leighton and Justin hung around the restaurant until after midnight. Long dinner. Late night. Sweet-but-subtle PDA. If it looks like a date and acts like a date, right?

The down-to-earth stars kept their (alleged) date fan-friendly, an onlooker reported. "They were happily willing to talk to fans who approached them."

Their reps were predictably tight-lipped after the encounter, but maybe no news is good news for this could-be couple (we hope so!). They do look pretty cute together, now that we think about it...

What do you think of Leighton and Justin as a couple? Crazy cute or super strange? Tell us in the comments!