14/08/2014 12:43 BST | Updated 20/05/2015 06:12 BST

Natalia Vodianova And Fiance Antoine Arnault Welcome A Baby Boy

Supermodel Natalia Vodianova and her fiance Antoine Arnault have welcomed a baby boy, the couple revealed on Instagram.

The 32-year-old face of Calvin Klein posted an awww-worthy picture of her new son's teeny foot with a message about the birth and all the little one's details.

Natalia Vodianova Instagram baby Maxim

"Last night at 2.45am was born our baby boy Maxim, living up to the definition of his name: he was born an incredible 4.2kg and 55cm!

"The baby and I are doing beautifully well to the delight of the proud Daddy. Thank you for all your good wishes, I would now like to pass them on to all women who are still expecting. Enjoy every minute of it S)".

Lucky Maxim already has two brothers and sister - Lucas, Viktor and Neva from Vodianova's marriage to aristocrat and painter Justin Portman - to look forward to playing with.

Louis Vuitton : Front Row  - Paris Fashion Week Womenswear Fall/Winter 2014-2015

Although the baby boy is the supermodel's fourth child, he is Arnault's first and the new father - who is also the head of luxury brand Berluti - has been super excited about meeting his son.

Writing on Facebook back in November, he posted: "Giving a little brother or sister to Natalia's three wonderful children is something we wanted so much: AND NOW IT'S HAPPENING!"

So sweet - congratulations Natalia and Arnault!

2014 is a big year for celebrity babies! Check out who else is expecting...