VIDEO: Eva Mendes: Getting Naked, Oily With Model Is Hard Work

Getting hot and heavy in oil with chiseled, flawless male models is hard work, Eva Mendes jokingly told Conan O'Brien on The Tonight Show Thursday.

The comely Cuban-American, dubbed the new face and body for Calvin Klein, described the day she did the racy photo shoot with hunky Irishman Jaime Dornan. She said that she didn't know him prior to the shoot, but two hours later, was naked and doused in oil with the muscular Dornan, adding that its just another part of the job.

"You guys aren't buying that, aren't you?" the Training Day beauty asked the laughing studio audience.