The subject of cosmetic surgery in the A-list world can sometimes remind you of that scene in Cruel Intentions, when Sarah Michelle Gellar's Kathryn coaches a gullible Cecile (Selma Blair) about sleeping around.

"Cecile, everybody does it" says Michelle Gellar, "it's just that nobody talks about it."

Selma Blair and Sarah Michelle Gellar in Cruel Intentions

But one A-lister who is willing to talk about it is 49-year-old Super Cindy Crawford. On the promotion trail for her new book Becoming, Cindy was asked about her own experience of cosmetic procedures.

Her response was refreshingly open. "I always said I would never do anything" she mused, "that was when I was 25." She went on to add that she's struggled with the 'how much is too much' question. "It's hard because part of you says "okay well I just want to go natural' but now it's just a part of our society where so many people are doing it. But then you see some people that are scary and you're like "oh I don't want to turn out like that" - is it better to just look old? I'm still trying to figure out where I personally draw my line."

In other words, Cindy? Damned if you do, damned if you don't. 

This isn't the first time Crawford has admitted her youthful looks aren't just down to a liberal application of sunscreen. Back in 2006, at the age of 40, Cindy told a reporter that she had been seeing the same plastic surgeon since she was 29.

Cindy on the catwalk in 1995

"I'm not going to lie to myself" she said back then, "past a certain age, creams work on the texture of your skin but, in order to restore elasticity, all I can really count on is vitamin injections, Botox and collagen. I have a very simple, healthy life, which works miracles. I drink a lot of water, watch what I eat and exercise... but I owe the quality of my skin to my cosmetic surgeon."

Crawford, who is pals with Amal Clooney and has been married to Randy Gerber for 17 years, is currently promoting her new book Becoming, which charts her journey from freshly scouted face to full-blown supermodel. 

Cindy Crawford with her new book Becoming

What these other A-listers have to say about plastic surgery

Jennifer Aniston

"There is this pressure in Hollywood to be ageless. I think what I have been witness to, is seeing women trying to stay ageless with what they are doing to themselves. I am grateful to learn from their mistakes, because I am not injecting shit into my face.”

Cameron Diaz

"I've tried [Botox] before, where it was like a little tiny touch of something. It changed my face in such a weird way that I was like, 'No, I don't want to be like that' - I'd rather see my face aging than a face that doesn't belong to me at all,” 

Scarlett Johansson

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"I definitely believe in plastic surgery. I don't want to be an old hag. There's no fun in that."