Kylie Jenner celebrated her Terry Richards-shot cover of Galore Magazine with a bash during New York Fashion Week, and of course her big sisters showed their support. Kendall Jenner, Khloe and Kourtney Kardashian all showed up in sexy dresses and partied in Kylie's honor, Us Weekly reported.

The star of the night, Kylie, wore a little black dress with long, sheer polka dot sleeves and midriff cut-out. The skirt of her dress was rouched with a gold zipper down the front and hugged her curves and she finished the look with a sleek pair of strappy heels. She was accompanied by her rapper boyfriend, Tyga, according to the Daily Mail.

Big sisters Khloe and Kourtney Kardashian dressed in all black too. Khloe showed off her new, slimmed down figure in a black lace dress with a nude underlay and accessorized with a pair of black, pointy-toe Louboutins. Kourtney showed off her newly-defined abs with a pair of high-waisted leather pants, a black bandeau top and a satin black bomber jacket. The mom-of-three finished her look with a chain link and leather handbag and black and silver open-toe pumps.

Supermodel Kendall was the only sister who opted for a pop of color and wore a red crochet maxi dress with a black underlay. The sisters all looked great as they danced and partied at the posh nightspot Up&Down in Manhattan's Meatpacking District, according to footage obtained by TMZ.

See photos and videos from the night below.

One word for the Kardashian/Jenners last night: Woah.