LaBeouf confessed to hooking up with Fox on the set of the second "Transformers" film in a recent Details magazine interview and the actress' rep has since confirmed there were sparks between the two stars.
Asked if she had romanced her co-star on the set of the new sequel, model-turned-actress Huntington-Whiteley jokes, "It was tough. I really had to tie myself into my trailer. I really had to restrain myself.
"Seven months of shooting, it was really tough for me. I had to wear a chastity belt and everything."
Huntington-Whiteley's real-life boyfriend is British action man Jason Statham.
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