Model and actress Natalia Vodianova is expecting her fourth child. The Clash of the Titans star is expanding her family yet again, but this will be her first child with boyfriend Antoine Arnault. Arnault, who is the CEO of footwear maker Berluti, took to Facebook.com on Tuesday (05Nov13) to announce the good news. He writes, "Giving a little brother or sister to Natalia's 3 wonderful children is something we wanted so much: AND NOW IT'S HAPPENING! We're going to have our first baby next year!!! #4 for her but #1 for me... I'm a little stressed! She was tired the first 3 months but is fine now... I hope he or she gets Mommy's looks (and beautiful heart!!!) and Daddy's sense of humor!!! Pleaaaaase not the other way around!!!" Vodianova has three children with estranged husband Justin Portman, from whom she split in 2011.