Justin 'cheating' with Rihanna

Has Justin Timberlake been cheating on girlfriend Jessica Biel with Rihanna?

They are two of the sexiest singers in pop, so we're not surprised to hear the latest rumours surrounding Justin Timberlake and Rihanna.

Justin is accused of cheating on his long-term girlfriend Jessica Biel with the Umbrella star.

'He is really into her,' claims US gossip website hollyscoop.com. 'Justin and Rihanna have been seeing each other for the past few weeks.'

Rihanna is said to have given Trousersnake a private lap dance at a nightclub in New York last week. But things reportedly got a little more intimate after the dance finished...

It's not the first time the duo have been romantically linked.

Justin, 28, starred in Rihanna's video for her hit song Rehab. Their raunchy dance moves sparked gossip that they were more than just working together.

But is it all just PR for Rihanna's latest record?

The Sexyback star has been helping the 21-year-old in the studio with her new album.

'The stuff we've come up with, it's the next step for her. It's a little more grown-up. It's got some edge to it,' he says.

Both singers have refused to comment on the rumours, but we bet Justin's girlfriend of two years, Jessica Biel, would like either one of them to deny it.

Last year, Jessica was said to be furious over gossip that her beau was cheating, telling him 'How can I ever trust you?'

We're sure it's just nasty tittle-tattle Jess. Honest?

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