The telly couple only confirmed they were dating back in May, but reports suggest Patrick has popped the question after Cat was spotted wearing a massive sparkler.
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Cat and Patrick at the Glamour Women Of The Year Awards in May
An eyewitness saw the the couple apparently celebrating their engagement at the Goring Hotel in London on Sunday.
“They were joined by friends and there was lots of congratulations and passing around a ring, which was a rather large diamond from what I could see! They both looked very happy and excited.”
CatPat first met when they presented Fame Academy together back in 2002 and were first rumoured to be dating at the beginning of the year but didn't go public until they both attended the Glamour Women Of The Year Awards in May.
Patrick hasn't hidden his desire to wed though, as during an interview last year, he said it was his aim for 2012.
"I think that might be my New Year’s resolution... to get married," he said.
Since then he is reported to have moved into Cat's £1.7m mansion in Beverly Hills, and a friend had told The Mirror it was only a matter of time before he popped the question.
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