Runaway bride dishes on sex(less) life with Hefner

Hugh Hefner's runaway bride is dishing on her sex life with the Playboy founder -- and according to her, it wasn't exactly X-rated.

Crystal Harris, 25, told radio shock jock Howard Stern on Tuesday that she had never seen the 85 year-old magazine mogul naked, and that their sex life left a lot to be desired.

"Hef doesn't really take off his clothes. I have never seen him naked," she giggled in an appearance on Stern's SiriusXM radio show.

Harris, who left Hefner and his Playboy Mansion five days before their planned June 18 wedding, claimed the pair only had sex once during their two-year relationship, and that it lasted "like about two seconds."

"I was over it. I just like, walked away. I am not turned on by Hef. Sorry," she added, as Stern pressed her for details.

In a separate interview with celebrity news show Access Hollywood, Harris said Hefner was more into "couch cuddling and movie nights", adding that after the early stages of their relationship sex "just wasn't the most important thing to him."

"I love Hef. I cared about Hef. I always will. We had a good time together," added Harris.

Harris was Playboy magazine's Miss December 2009 and appeared on the July cover of Playboy with a "runaway bride" sticker covering her bottom half.

Hefner, founder of the Playboy adult entertainment empire, has been married twice before. After initially describing himself as heartbroken at being dumped by Harris, Hefner has since announced that he has a new girlfriend, Shera Bechard, a 27 year-old French Canadian model who was Playboy's Miss November 2010.