October 27, 2010 11:39 am

Justin Timberlake cheated on Jessica Biel with Olivia Munn?

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timberlake biel munn Justin Timberlake cheated on Jessica Biel with Olivia Munn? Just when I go thinking that Jessica Biel was nothing but a beard for Justin Timberlake comes this well-placed story in Us Weekly saying that he cheated on Biel with Olivia Munn. Do they mean she took over as his pretend girlfriend for a few days while Jessica was out of town or that he actually had sex with Olivia? Let’s find out…

Timberlake, 29, and Munn, 30, a Daily Show correspondent who stars in the upcoming NBC series Perfect Couples, first met at a Sept. 26 MySpace event.

After exchanging numbers, he “started chasing her immediately,” says an insider.

Munn resisted his advances, telling him it was a no-go if he was still with Biel, 28, the source tells Us Weekly. But Timberlake “has been telling people it’s over with Jessica, even though “the reality is he’s just doing it behind her back.”

Doing what? Playing golf?

The story goes on to say that “they were openly affectionate” and that ‘the insider’ said that the two of them “had amazing sex”. By insider I think they meant JT’s publicist.

Oh well, I guess if you are going to pretend to have sex with women you could do worse than saying it’s with Jessica Biel and Olivia Munn. And I love how the headline of the story calls Olivia Munn an “actress”. Maybe it was her publicist that leaked this ‘news’?

Exclusive: Justin Timberlake Cheated on Jessica Biel With Actress Olivia Munn [Us Weekly]