In photos: 'Nicky Hilton's 25th Birthday Celebration'

By James Wray Oct 6, 2008, 16:10 GMT

Paris Hilton and Nicky Hilton attend Nicky Hilton's 25th Birthday Celebration at Pure Nightclub in Las Vegas on October 4, 2008. Photo copyright PRN / PR Photos

Paris Hilton attends Nicky Hilton's 25th Birthday Celebration at Pure Nightclub in Las Vegas on October 4, 2008. Photo copyright PRN / PR Photos

Nicky Hilton attends her 25th Birthday Celebration at Pure Nightclub in Las Vegas on October 4, 2008. Photo copyright PRN / PR Photos

Paris Hilton and Nicky Hilton attend Nicky Hilton's 25th Birthday Celebration at Pure Nightclub in Las Vegas on October 4, 2008. Photo copyright PRN / PR Photos

10/04/2008 - Paris Hilton - Nicky Hilton's 25th Birthday Celebration at Pure Nightclub in Las Vegas on October 4, 2008 - Pure Nightclub at Caesars Palace Hotel and Casino - Las Vegas, NV, USA © PRN / PR Photos

10/04/2008 - Paris Hilton and Nicky Hilton - Nicky Hilton's 25th Birthday Celebration at Pure Nightclub in Las Vegas on October 4, 2008 - Pure Nightclub at Caesars Palace Hotel and Casino - Las Vegas, NV, USA © PRN / PR Photos

10/04/2008 - Paris HiltonParis Hilton - Nicky Hilton's 25th Birthday Celebration at Pure Nightclub in Las Vegas on October 4, 2008 - Pure Nightclub at Caesars Palace Hotel and Casino - Las Vegas, NV, USA © PRN / PR Photos

10/04/2008 - Nicky Hilton - Nicky Hilton's 25th Birthday Celebration at Pure Nightclub in Las Vegas on October 4, 2008 - Pure Nightclub at Caesars Palace Hotel and Casino - Las Vegas, NV, USA © PRN / PR Photos

10/04/2008 - Kathy Hilton and Rick Hilton - Nicky Hilton's 25th Birthday Celebration at Pure Nightclub in Las Vegas on October 4, 2008 - Pure Nightclub at Caesars Palace Hotel and Casino - Las Vegas, NV, USA © PRN / PR Photos

10/04/2008 - Kathy Hilton - Nicky Hilton's 25th Birthday Celebration at Pure Nightclub in Las Vegas on October 4, 2008 - Pure Nightclub at Caesars Palace Hotel and Casino - Las Vegas, NV, USA © PRN / PR Photos