Reality star Kendra Wilkinson admitted that she had to be drunk or stoned when she had sex with Playboy founder Hugh Hefner.

Wilkinson was only 18-years old when she moved to live in the Playboy mansion to become one of Hefner's girlfriend. At that time, Hefner was 78 years old.

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I was usually very very drunk during those evenings, I tended not to care about much until the next day. I had to be very drunk or smoke lots of weed to survive those nights," Wilkinson wrote in her memoirs, and shared with the Daily Mirror.

She said that sex with Hefner only took roughly about a minute, and that it felt like a job. She referred to the deed like clocking in and out of a job. She said that she didn't enjoy having sex with Hefner.

29-year old Wilkinson, who currently stars on the British reality show, "I'm A Celebrity... Get Me Out Of Here," said that the only reason why she decided to live in the Playboy mansion was because she felt that it was an "escape".

She shared that when Hefner had asked her to be one of his girlfriends, she didn't really understand what it meant, but that she immediately said yes.

When Wilkinson agreed to the living arrangements with Hefner, she was living in what she describes as a very small apartment "with the ugliest s**t". She said that she would've done anything to get out of the situation she was in.

"He asked me to be part of the Playboy Mansion and I accepted, of course. I went straight away but I didn't know that sex was involved," she admitted.

The admission comes after Wilkinson shared that she didn't know how to be there for her husband, NFL player Hank Baskett, when he was going through severe depression.

TagsKendra Wilkinson, Hugh Hefner, playboy, Hank Baskett