Lingerie tycoon Michelle Mone has returned to modelling for the first time in two decades - after shedding six stone.

The Ultimo boss modelled an outfit from her new range in a photoshoot for Hello! magazine after getting back into shape for the first time in years.

Mum-of-three Mone has been in training for a new ITV show which takes place in the Arctic.

The photoshoot for her Ultimo Couture dress range was the first for the ex-model since 1990 and she said she had difficulty relaxing.

Michelle Mone returns to lingerie modelling after an absence of two decades

Mone said: 'I felt a bit nervous about it all and the first hour was pretty terrible. After that I really enjoyed it all.

'Before this one of my last modelling jobs was for Tennents lager. My image was used on a can.

'The problem was I was only 17 and thus under age to be promoting alcohol. When they found out, they sacked me.'

Mone, 38, said her weight loss was down to herbal pills which are said to speed up the metabolism.

Then the hard work began with a gruelling regime to get her into shape. 'I have only got toned and fit this year after training with Celtic Football Club. I was treated like a player,' she said.

'We ran 21 miles a week and they used to give me iced baths in preparation for the new ITV1 show set in the Arctic. There we swam in minus 2C seas and the temperature fell to minus 35C at night.'

Her weight loss has occurred over a two-year-period: 'At one point I was a size 18 to 20, ballooning to 17 stone. Now I am back to a 10 to 12 and weigh 11 stone. I feel the happiest I have ever felt in my life.'

Her new range has seen her team up with celebrity designer Brian Rennie for Ultimo Couture which goes on sale at Debenhams today.

The full interview is in the new Hello! Magazine which is on sale now.