Aniston's spokesman Stephen Huvane attacked Us Weekly editor Janice Min after she appeared on breakfast show Today yesterday, insisting the celebrity couple have been engaged for almost two months.
He blasted, "She is wrong. There is no engagement."
But the publication's executive editor, Ken Baker, hit back on showbiz news program Access Hollywood last night suggesting the magazine's sources are perhaps better than the publicist's.
Baker said, "You're only as good as your sources and I would just ask him to check his sources. They are engaged, they are getting married and they are as happy as they've ever been."
Sources tell Us Weekly the couple became engaged on June 27 after spending a romantic nine-day vacation in Mexico together.
The magazine reports Old School star Vaughn was planning to propose to the former Friends star on the beach in Puerto Vallarta, Mexico, during their break but lost his nerve.
Vaughn eventually plucked up the courage to pop the question when the couple was heading back to Los Angeles onboard a private jet.
The engagement ring Vaughn reportedly bought his bride-to-be features a $500,000 diamond.
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