Model Christie Brinkley, 69, poses in a flattering blue swimsuit she bought in the 80s | CPT PPP Coverage

Christie Brinkley radiated ageless beauty at 69 in a new Instagram post on Sunday where she posed in a blue swimsuit in the Turks & Caicos. 

The Sports Illustrated Swimsuit Issue icon showcased her youthful physique in the flattering one piece which she explained in the caption she had bought in the 80s.

The costume highlighted her tanned legs and was teamed with comfy flip flops and a sun hat as she stood on a beautiful beach with her bike.

She had her blonde tresses in loose waves over her shoulders and opted to go makeup free for the day out in the sun. 

She penned in the caption: ‘My bathing suit is from the 80’s and in the blink of an eye, a decade can pass and I’ll be pushing 80… because time flies when you’re having fun and I am ‘WHEELY’ having a great time! 

‘I can see by some comments, the way I worded my post confused people about my age. I just had my 69th birthday on Feb 2, and it literally feels like yesterday that I was celebrating my Big Five Oh! 

‘So, I was trying to make an important point here, in a somewhat humorous way, about the importance of making time for fun! 

‘Joy is good for your health your heart and your soul so schedule it in, squeeze it in, grab it at every opportunity, create it! Whatever your age… You will be happy you did!’

Christie has over the years racked up a grand total of four ex-husbands, including Billy Joel, who wrote his hit Uptown Girl about her.

Billy and Christie share her eldest daughter Alexa Joel, 37, and have retained an amicable relationship with one another in spite of the collapse of their marriage.

‘Many years after our divorce, Billy would still come to my house for the Christmas singalong and play the piano, and all our friends would come over and sing Christmas carols,’ she told Social Life magazine this past year.

‘Singalongs are one of my favorite things to do. And you know that’s what makes everybody happy,’ the legendary pinup added.

As far as the present state of her love life is concerned, she told Hello! in May: ‘I am not looking for romance – there is an expression when you don’t look, it happens so I haven’t been looking for a while and maybe it will happen.’

Alexa is currently engaged, but Christie quipped: ‘Having been through four divorces I am not the one to ask for any wedding advice!’

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