Isabel Lucas could bump off Megan Fox on the sexy charts this summer. How Transformers was the break out for Megan could be what Transformers 2 does for Isabel. Or maybe it already has and Megan knows it?

More pictures of Isabel after the jump…

And think back to last summer…Isabel was with Shia LaBeouf when he got in to that accident that messed up his hand. Isabel was supposed to be dating Adrien Grenier at the time. Was Megan jealous all that time, that’s why she is playing this game with Shia now? From the Examiner:

Megan Fox who plays Shia LaBeouf’s girlfriend in Transformers: Revenge of the Fallen has some stiff competion from gorgeous dorm mate of Shia, Isabel Lucas. Mikaela Banes (starring Megan Fox) walks into Sam Witwicky’s (LaBeouf) dorm room only to find him making out with Alice (Isabel Lucas).. Un-oh!

more photos of Isabel Lucas below..

Wasn’t Mikaela pissed off. I wanted to go right up there and knock Sam in the head…from my seat that is.. only to turn out that Alice is a bad robot in disguise. But in realy life Isabel Lucas is definitely a hottie.

Did Adrian Grenier, the Entourage star dumped his gorgeous Transformer 2 girlfriend, Isabel Lucas because of Shia LeBeouf? Probably.. another question is: Did she cheat with Shia?

more photos after the jump…

A source tells People magazine that Adrian and Isabel split on the heels of her car crash while driving with costar Shia LaBeouf.