Justin Timberlake courts Olivia Munn behind Jessica Biel’s back?

Justin Timberlake and Jessica Biel must have one of the most unstable, press-friendly connections in romantic history. A week hardly goes by without a story of an upset or a break-up….And here’s one involving Olivia Munn:
The story goes that Justin, 29, met the 30-year old Daily Show correspondent at a MySpace event on September 26;
“He started chasing her immediately,” says an insider.
Olivia apparently resisted his overtures as she knew he was still with Jessica — but Justin had an answer for that;
“He’s been telling people it’s over with Jessica, though the reality is he’s just doing it behind her back,” says one snitch.
Supposedly Olivia bought JT’s story, and believing they might have a basis for romance the pair adjourned to her room at ‘Hotel Gansevoort’ on Park Avenue for the weekend, where spies say they were “openly affectionate.”
An insider tells Us the pair “had amazing sex” that night…Although, how they would know this can only be guessed.
Today, as you might expect, reps for both sides are in damage-control mode – JT’s rep strongly denies all such allegations, and those who speak for Olivia told reporters they do not comment on their client’s personal life.
But after the energetic weekend Olivia ended the fling, because friends say she felt ’sad and used.’
So, is it really over with Jessica, or is Justin merely a two-timing louse? Let’s get your reviews…