03/14/2014 03:04 EDT | Updated 04/29/2014 10:59 EDT

Kate Upton's Sister Is Supermodel Gorgeous (PHOTOS)

Unless you've been living under a rock for the past year, you're well aware that Kate Upton is crazy gorgeous.

Not only is she a fashion darling (and Sports Illustrated Swimsuit star) but the 21-year-old has quickly become one of our favourite Instagram users, thanks to her behind-the-scenes pics.

So, when the Vogue cover girl shared a snap of her standing beside her sister on Thursday, we weren't surprised to see that the Uptons have good looks running in their DNA.

"My niece's first fashion show! @cwilliams728 #exprunway @expressrunway," wrote Kate next to the pic, referring to the baby bump Kate's sister was sporting.

The adorable pic showed a flawless Kate wearing a blush blazer over a revealing white dress with a low neckline, standing next to her sis who shared Kate's blond hair, sea-blue eyes and killer smile.

The sisters were attending the Express fashion show in Miami. Kate was recently announced as the new face of the fashion label.

It's official: the Uptons are taking over the world!

kate upton

kate upton

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