The Duchess' Family Portrait Dress Sells Out in Two Hours

Just as she and her newborn son have done in the past, Catherine, the Duchess of Cambridge, has caused yet another stir in the world of fashion. Less than two hours after the first official family portraits of Kate, William and George were published, the Seraphine Maternity dress she wore in the photos had completely sold out. According to Britain's DailyMail, there's now a four-week waiting list for the item, which features a knot-front design and an empire-line cut. READ: Duchess of Cambridge Makes Vanity Fair’s Best-Dressed List (Again) Previously, Kate has also been pictured in two different dresses from Seraphine Maternity — a polka dot dress and a lavender dress — and both are still hugely popular with expectant mothers. Check out the photos from Kate's first official family portrait below (and if you own a dress company, now would be the time to send a few freebies her way.)