Kendra Wilkinson Details Her Former Romance With Hugh Hefner

She said she "didn't know ... sex was involved" when she moved into the mansion.

However, things became clearer a few weeks in.

"I didn't know that sex was involved because I knew nothing about Playboy. I just graduated high school," she explained in a clip from "I'm A Celebrity... Get Me Out Of Here!". "[But then] he's like, 'Do you wanna come upstairs?' [and I said] 'Sure, let's have fun.'"

Wilkinson, 29, said that Hefner, 88, considered his relationships with the women who live in the mansion "real relationships."

"I got married at the mansion!" she said. "It was like, over a million [dollars]. It was so beautiful."