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Kimberly Kloss, Karlie Kloss

Jamie McCarthy/WireImage

OK, it's pretty clear that Karlie Kloss' family hit the gene pool jackpot.

In Hollywood there is no shortage of beautiful people and many even hail from the same family (we know, it's totally unfair), and the latest sexy sibling comes from the Kloss family. The supermodel's date to the Paper Towns premiere in New York City was none other than her stunning younger sister Kimberly.

Karlie, who flaunted her enviable figure in a simple yet sophisticated beige dress with matching stillettos, posed for pictures on the red carpet next to her sis, who was rocking a white cut-out dress with black strappy heels.

And, as if that's not enough hotness, Kimberly is a twin! Yep, there are more Kloss sisters, and we can only imagine how beautiful this entire brood is.

Kimberly stays pretty private, but a Teen Vogue article about the Kloss girls from 2012 revealed some of Kimberly and twin sister Kariann's interests.

"Kariann is a horseback rider and lacrosse player ('She's the star goalie,' says proud sis Karlie. 'She's in the newspaper all the time!'); Kimby plays softball and has a thing for leopard-print anything. They are currently planning college visits and, like most seventeen-year-olds, still figuring out what they want to do with the rest of their lives. Kariann may want to be a vet (she has plenty of animals to practice on!). Kimby isn't sure yet."

Karlie attended the premiere tonight to support her gal-pal Cara Delevingne, who stars opposite Nat Wolff.