Janice Dickinson's son lifts lid on life with the superbitch

Janice Dickinson's 20-year-old son Nathan Fields, from her marriage to former movie producer Simon Fields , claims nothing surprises him about his mum’s over-the-top life.

In an exclusive interview with Closer magazine he said: “I seriously don’t know what the hell she’s doing in that jungle. I thought she was insane to go in there. It’s the last thing I expected her to do.”

Worried Nathan says his mother is on a ‘quest for eternal youth’ and admits he loathes her addiction to plastic surgery so much he’s begged her never to go under the knife again.

The 52-year-old former supermodel, who has had a tummy tuck, neck lift, several facelifts, botox, liposuction, breast implants and skin peels in a relentless bid to hold on to her looks, has reportedly spent a five-figure sum on surgery over the years.

“We’ve made a deal that from now on there will be no more,” says Nathan. “Well, she’s said she won’t touch the face at least. I’m not sure whether I believe her – she’ll just do what she wants anyway. I just don’t think she needs surgery. She’s beautiful lady and doesn’t need anything worked on.”

He added: “She doesn’t tell me when she’s having plastic surgery done. I walk in and she’s lying in bed after the latest operation, and I’m like: ‘What’s going on?’ That really gets to me. I don’t like the surgery.”

Now happily settled with musician Joe Kaplan, Janice has admitted to having slept with over 1,000 men, including Sylvester Stallone, Liam Neeson, Jack Nicholson, Bruce Willis, Warren Beatty and rocker Mick Jagger.

Nathan, who now works as a TV producer, says despite his mother’s reputation as a man-eater she always taught him to be a gentleman. “She taught me about sex and stuff when I was younger and she always drummed it into my head to be a gentleman – to always pay the bill and always look after the woman. I’ve absorbed all her advice.”

“Not many women her age have such an energy for life – she works out six days a week with a personal trainer, she hikes and walks the dogs and eats healthily. She could beat the hell out of most of my friends, put it that way!”

“My Mum is an alpha female and I’m constantly having to say: ‘No Mum!’ But away from the cameras she’s an incredible mother. She’s exhausting but I love her.”