Audrina Patridge and her older sister, Casey Patridge, were at the Wet Republic pool party at MGM Grand Hotel & Casino in Las Vegas, on Sat., Sept. 27. Casey has a fabulous, taut body, considering she just had a baby earlier this year. Casey loved hardcore stuff and has acquired many tattoos. It looked like she would be covering her body with them. Audrina was the host for this Bombay Sapphire event. DJ Shift played the music for them.