Cindy Crawford is jealous of her 10-year-old daughter's youth.

Kaia Gerber recently made her modeling debut in a Versace kids campaign and while mum Cindy, 46, was undoubtedly proud, she admits to feeling slightly envious.

Asked about her feelings on the aging process, the supermodel told the Daily Mail newspaper, "Oh, please. I am a normal woman, I have good days and bad days and it's not really that fun. I look at my daughter and I'm like, 'You have my old skin and I want it back! You have my old legs, I want them back! You have my old hair, I want it back!' She is just getting more and more beautiful and, you know ... But at the same time, there's so much good that comes with it. And I think if you're happy in your life, it's a lot easier to take."