Elle Macpherson has stripped off for her first bikini shoot in six years.

The 47-year-old mother-of-two - who was once dubbed 'The Body' in honour of her supermodel figure - posed in a tiny two-piece for People Magazine but admits it was a nerve-wracking experience.

She said: ''I do get jitters. I was comfortable [at the shoot]. But I had to get my self-conscious, 'Maybe I don't look my best', head out of the way and go with, 'Let's celebrate where I'm at'.

''I know it's not as easy as when I was 20 - there are more factors to consider.''

Having gained more than 50lbs during each pregnancy with sons Flynn, 14, and Cy, nine, Elle believes her 'Fashion Star' colleague Jessica Simpson - who is heavily pregnant with her first child with fiancé Eric Johnson - ''looks so beautiful''.

Discussing Jessica's recent naked Elle magazine cover, she told USA Today: ''She looks gorgeous! All I see is a beautiful woman, pregnant. How cool. It's a Celebration of motherhood - a celebration of pregnancy, really.''

Referring to her own pregnancies, she added: ''My butt was huge, my breasts and stomach were huge. I didn't do maternity wear - instead I bought huge clothes in an attempt to be fashionable. But I was in awe of The Changes that were going on in my body.''