Britney Spears, who arrived at Hollywood's Les Deux nightclub with her cousin Allie, reportedly spent the evening dancing with Ryan Phillippe .
A source told gossip website X17online: "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.