Shia LaBeouf has been adding insult to Megan Fox’s injury as he confirmed in an interview the recurring rumors that he and his sexy co-star had indeed hooked up while filming Transformers.

As if making matters already worst for Fox, the 25-year-old actor opened up to Details magazine and again in his appearance on Today Tuesday morning about his affair with now very-much married Jonah Hex star.

Fox married long-time boyfriend of seven years and now husband, Brian Austin Greene in Hawaii last summer.

In an attempt to save both of them, Shia justified their actions as ‘unavoidable’ explaining their situation where they have to work together for months.

"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," Shia was quoted telling Today’s Ann Curry by Scoop Today.

He added: "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."

Either Shia just could not help himself being honest or he was just trying to get mileage to promote Transformers 3 when released in July, but the damage he did had been done.

When asked about Fox’s status with then bf, Brian, Shia was left with a three-word response he repeated 12 times.

"I don’t know, man. I don’t know. I don’t know. I don’t know ..." -- repeating the phrase exactly 12 times in various intonations, as if trying to get it just right. Finally, he says, "It was what it was."

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Megan Fox unfazed as truth of departure from ‘Transformers 3’ comes out

Watch VIDEO of Shia LaBeouf’s interview.