Shia LaBeouf: I Hooked Up With Megan Fox On ‘Transformers’

Shia LaBeouf says the onscreen chemistry fans saw between him and former co-star Megan Fox on the first two installments of “Transformers” was the real thing – the 25-year-old actor claims he hooked up with the bombshell.

When asked by Details magazine in an interview for their August if he’d ever been intimate with Megan, Shia nodded in the affirmative.

“Look, you’re on the set for six months, with someone who’s rooting to be attracted to you, and you’re rooting to be attracted to them,” he told Details. “I never understood the separation of work and life in that situation. But the time I spent with Megan was our own thing, and I think you can see the chemistry onscreen.”

When asked if Megan, 25, was with then-boyfriend-and-now-husband Brian Austin Green at the time, Shia said, “I don’t know, man. I don’t know. I don’t know. I don’t know,” repeating the phrase 12 separate times, then added, “It was what it was.”

A rep for Megan told Access Hollywood, “We do not have a comment.”

His former robot-battling co-star (who was replaced by Rosie Huntington-Whiteley in “Transformers: Dark of the Moon”) wasn’t the only lady in his life he opened up about.

He called his one date with Hilary Duff “probably the worst date either of us have ever had.”

Shia also claims he and “Transformers: Revenge of the Fallen” co-star Isabel Lucas were once “philandering around.”

“Neither one of us, I think, were in love. Just sort of experimenting or whatever,” he said of Isabel.

As for ex-girlfriend Carey Mulligan, whom he split with in October 2010, the actor said she still holds a place in his heart.

“I still love her,” he explained. “[She’s an] awesome person and an incredible actress. We’re still pals. I wouldn’t take any of it back, and I don’t think she would either. It just ran its course.”

The actor is reportedly currently dating stylist Karolyn Pho.

“Transformers: Dark of the Moon” opens on Wednesday.