61 years old and this body ?!

Christie Brinkley has recently brought to market a book called "timeless beauty", which tells the secrets of how a woman can look great at any age.

And on Monday, the former model of "Sports Illustrated", now 61, proved that what he says in the book are very real, and posted on Instagram a photo in a bikini, which shows the body forms that he envied the girls new.

In the photo, the mother of 3 children seen posing at Parrot Cay Caribbean area.