London: Rihanna and Kanye West were spotted enjoying a cosy night out together at a club The pair was seen flirting outrageously and enjoying dirty dancing along with a 90-minute lock-in at London's Whisky Mist.

The Umbrella girl was joined by US megastar for a champagne-fuelled evening.As Rihanna danced her female pals on a medley of cheesy Chrimbo classics - Kanye managed to slip in through a side door.

With his six-strong entourage, he joined the singer's VIP table and ordered several 400 pounds bottles of Dom Perignon Rose."When Kanye came in, he immediately gave her a huge hug and kiss, and sat down with her. The pair were chatting at length, ignoring everyone else," the Mirror quoted a source as saying.

"Then Mariah's All I Want For Christmas Is You came on. Rihanna stood up with a couple of pals and started waving her hands in the air.

"She stood in front of Kanye giving him the benefit of a very private dance - and he loved every second."When people started filtering out of the club at 3am, Rihanna was still in a party mood - so the group had their very own lock-in, with free-flowing drinks and their choice in music. They left around 4.30am," the source added.