Jess and Gerry are filming together in Louisiana and have been seen out flirting on four occasions, according to Us Weekly.
So is it lust, love or both?
According to set sources, nothing has happened between the two (yet).
"They have never had dinner alone," dishes an insider in Louisiana. "They are always in a crew of people on the film."
Still, that doesn't mean these two hotties couldn't sneak away, right?
"There is no romance or relationship," insists the source.
A rep for Biel did not return our calls for comment.
Just saying, if Jess didn't feel like resisting Gerard's charm for too long we wouldn't judge. Who says they need to have a relationship? Or romance for that matter. Celebs have needs too!
As we said yesterday, friends of Gerry's said he was not looking to settle down anytime soon.
So who would you all like to see Ms. Biel with next?
It's only fair that Biel finds herself an equally hot counterpart to cavort around with for a while. We suggested Bradley Cooper. Can you all do better?