Couture and porn clashed in Las Vegas over the weekend. Chanel held a lavish event Friday night at The Wynn to unveil its “Numéro Privés” installation. The French fashion house shuttled in via private jet fashionable patrons including Jessica Alba, Alexa Chung and Diane Kruger. But the equally titillating AVN awards (the Oscars of the porn world) were the following night at the Hard Rock Hotel & Casino, and Chanel patrons — including photographer Douglas Friedman, Jessica Joffe, Leigh Lezark, Jacqui Getty and Douglas Hannant — all ventured over to party with XXX stars. Even socialite Marjorie Gubelmann was spotted at the Vivid Entertainment after-party.