Sexy Ryan Phillippe has been dating around

Britney Spears partied with Ryan Phillippe on Tuesday night. The 'Toxic' singer, who arrived at Hollywood's Les Deux nightclub with her cousin Allie, reportedly spent the evening dancing with Ryan. A source told a gossip website "Britney hung out with her friends and her security guard in the VIP area of the club. She looked really happy.Ryan was there too and they left within two minutes of each other at 3am."Britney - who was wearing a tight red see-through top and leopard-print bra along with long blonde hair extensions - began her evening in Dominic's restaurant before heading off to Les Deux at 11pm.Britney - who divorced Kevin Federline earlier this year and was reported to be dating musician Howie Day - isn't the first female star Ryan has reportedly romanced in the Hollywood nightclub. In March, Ryan - who split from wife of seven years Reese Witherspoon last October - allegedly spent the night with Ashlee Simpson after meeting her in Les Deux. Britney and Ryan weren't the only celebrities in the trendy nightspot on Tuesday. Bruce Willis' 18-year-old daughter Rumer arrived just minutes after the pair.The actress, who cannot legally drink in the US where the age limit for alcohol consumption is 21, hid behind a door to avoid being seen as she was leaving, before making a quick dash to a waiting car.