'I was 18 and he was 78': Kendra Wilkinson reveals all about her sexual relationship with Playboy founder Hugh Hefner

She is up-front about most things.

And, when it comes to her rise to fame via the Playboy Mansion, Kendra Wilkinson is no different.  

The blonde mother-of-two was frank and forthright about her sexual relations with Hugh Hefner, the 88 year-old magazine publisher and self-confessed ladies' man.

Scroll down for video 

Age gap: The blonde mother-of-two was frank and forthright about her sexual relations with Hugh Hefner

In a discussion with Melanie Sykes, she shared how she became a girlfriend of Hugh Hefner. 

'He asked me to be one of his girlfriends and I was like I don’t know what that means but hell yeah I’m there. 

'I was living in the smallest apartment with the ugliest **** and I was praying for anything to get me out of there.'

Kendra reveals what it was like to be in the Playboy mansion

+8

Up-front: In a discussion with Melanie Sykes, she shared how she became a girlfriend of Hugh Hefner

+8

Confessions: 'He'd ask if you wanted to go upstairs, and that was that. I was 18 and he was 78.'

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

'He'd ask if you wanted to go upstairs, and that was that. I was 18 and he was 78.'

Melanie gasped and asked if Kendra was obligated to have sex with the Playboy boss. 

'I was just curious about the girlfriends because he’s always got more than one and wondered if you have to do him?'

'You’re not obligated it’s your choice,' said Kendra. 

Hugh Hefner marries Crystal Harris

Buxom babe: The reality TV star slept with Hugh when he was 78 - and she was just 18

Adding further detail to her story, she said: 'He really looks at the women in his house as relationships. Honestly? They all sleep with him - but they're also the greatest people

Foggy concluded: “And they say romance is dead.” 

These days, Hugh is wed to Crystal, the Playboy Playmate Of The Month for December 2009, whom he married on NYE 2012.

Taken: These days, Hugh is wed to Crystal, the Playboy Playmate Of The Month for December 2009, whom he married on NYE 2012

Pre-jungle glamour: Kendra cuts a more stylish figure when she's not living in the jungle

The wedding nearly didn't happen after she backed out of their planned wedding on June 14, 2011, just five days before the big event.

She was called a 'runaway bride' on the cover of Playboy, but the two reconciled in early 2012.

Crystal first met Hugh at a Halloween party in 2008 at the Playboy mansion. 

Mother nurture: Kendra is now happily married and has two young children

Family life: The blonde star left the Playboy Mansion to get married and start a family