If I were Shia, I would have developed an appreciation for Thrust. She would get my gears going into a Frenzy and I would ravage her until I shot my energon.
Does this really matter? Young twenty something aged stars have a thing for each other on set. News at 11. Not at all surprising at this point as it happened in the cases of Twilight, spiderman and several other movies.
Romance on the set isn't unusual. Ben Affleck and Jennifer Garner met in Daredevil, and Ryan Reynolds met Blake Lively in Green Lantern. Did anyone expect Shia and Megan to stay together though?