The two were spotted cozying up at an intimate dinner on Sept. 21 at the Boca Raton Resort & Club in Florida while filming for their new thriller movie Parker.

“Jennifer and Jason had dinner, just the two of them. It’s a really romantic restaurant, on the top floor of the hotel overlooking the water, and it’s very exclusive. They were really engaged in their conversation and definitely enjoyed being together,” a source tells the mag.

And that’s not all!

“They were at the hotel for about a week filming scenes and spent a lot of time in a room on the 26th floor … They had room service delivered on several occasions. One time, she ordered fish, fruit, bread a burger … and champagne,” the source says.

But the issue is Jason is reportedly in a long-term relationship with model/actress Rosie Huntington-Whiteley. The Transformers 3 star has been across the pond in London for Fashion Week. And J-Lo is still in the middle of her divorce from ex Marc Anthony who she has two kids with!

Even though it’s widely known co-stars do get close off screen — it seems like bad timing for the two to start anything romantic.

What do YOU think, Hollywoodlifers? Are J-Lo & Jason dating? Vote and weigh in below!

— Nicole Karlis