(Cover) - EN Showbiz - Justin Timberlakes rumoured romance with Olivia Wilde has been brewing for quite a while.

The pair were seen flirting in Hollywood earlier this month, sparking reports they are dating. Even though Olivia later denied the speculation, it has been claimed Justin and Olivia have been friends for many years and are now realising their feelings have deepened.

Things have been brewing for quite a while, a source close to the pair told the American edition of OK! magazine. They met while filming 2006s Alpha Dog and really clicked.

Both Justin and Olivia are currently single Justin split from his long-term girlfriend Jessica Biel last month and Olivia recently announced she and husband Tao Ruspoli are getting a divorce.

Justin and Olivia were previously spotted getting close in November last year, while they were taking a break from shooting their new movie, futuristic thriller Now. It was obvious they were into each other, an onlooker said.

On April 2, the pair fuelled romance reports after they were seen partying together at Los Angeles nightspot The Roxbury.

They were snuggled up in the VIP section until 1am, when Justin asked to move to the patio so he could hear hip-hop, a source revealed. Both he and Olivia were rocking white tees and jeans and were drinking vodka. They arrived together, and then left together at 3am.

Olivia took to her Twitter account to hit out at the reports of a romance. The gorgeous star insists she and Justin are simply good pals, and have been for a long time.

Cool it, honeybadgers, Olivia wrote. We are just friends and have been for years. (C) Cover Media