Did Megan Fox & Shia LaBeouf’s hookup occur when she was with BAG?

A few days ago, Details Magazine released their cover profile on Shia LaBeouf, and I have to say, they buried the lead. We get press releases from Details, and when we were sent the info on Shia’s cover, there was no blaring “BREAKING NEWS” alert that he was talking about how he and Megan Fox had some kind of affair/hookup on the set of one (both?) of the Transformers films. My point: Details buried the lead. I still love them and everything, but give us a giant “MEDIA ALERT” please. Anyway, if you’d like to review our coverage of Shia’s interview, go here. He confirmed something I suspected long ago: that he and Megan had something going on for a while, although Shia makes it sound like it was just an on-set hookup.

Anyway, Us Weekly has an interesting piece about the timeline of it – the hookup could have happened while Megan was still technically dating Brian Austin Green, and thus far, Megan hasn’t released any statements about Shia’s interview… directly. I think this may have originated from Team Fox though:

Yep, it’s true. In an instantly viral Details interview, Shia LaBeouf spoke at length about a supposed onset fling with Megan Fox, his former costar in the first two Transformers flicks.

“Yes, Megan and Shia hooked up,” a set source confirms to Us Weekly. In his Details chat, LaBeouf, 25, sputtered when asked if Fox was then involved with her now-husband Brian Austin Green during their tryst (he repeated “I don’t know” 12 times).

But the kissing costars are in the clear, the source says. “It was when Megan and Brian broke up,” the source explains. “They had a 10-month break before getting back together.” (Indeed, Fox and Green, 36, did have a break of nearly a year before reuniting and eventually tying the knot in June 2010.)

“[Shia and Megan] bonded while filming,” the source explains of the epic shoot, which was worsened by director Michael Bay’s rumored temper. “Believe me, that was an unhappy set. I think they were drawn together because it was so ugly working on that film.”

Although Bay has said that Fox was fired (at Steven Spielberg’s demand) from the flicks for public comments she made about him, “she was never fired,” the source insists. “She said enough was enough and quit.”

[From Us Weekly]

When pressed for specifics about this ten-month breakup, like when it began and when it ended, Megan’s rep looked at me blankly and then said, “Uh… I don’t know, when did Shia say he boned Megan? Go with that.”

And as for Brian Austin Green and what he thinks about all of this… am I the only one who remembers HIS interview in Details Magazine last year? Here’s the relevant portion:

Details: Your relationship [with Megan] was often described as on-again, off-again.
Brian Austin Green: We’ve been together for six years. Find a picture of one of us with any other boyfriend or girlfriend—I challenge you. You’ll only find pictures of her doing press with Shia LaBeouf or me with my son. That’s it. We never once dated anyone else or did anything else.

[From Details Magazine, October 2010 issue]

Fascinating. And it’s especially interesting that he name-checked Shia, right. But that was just “going press” – that’s probably what Megan said. Shia LaBeouf is totally a homewrecker.

Photos courtesy of Fame & WENN.