Shia LaBeouf and Megan Fox are certainly fanning the gossip fires when it comes to reports they’re an item. The “Transformers: Revenge of the Fallen” co-stars (whose movie killed the competition with a $201 million five-day opening) sat side by side during a dinner with 10 pals — including director Oliver Stone — at Nobu on Thursday.

“They definitely seemed into each other,” says a witness, who told us that when Fox left at 10 p.m., LaBeouf followed hot on her heels. Another spy added that, while partying at a Rose’s bash in West Hollywood earlier in the week, “Shia couldn’t keep his eyes off of Megan: He literally watched her like a hawk all night.”