The Jenner sisters are building a clothing empire!
The 20-year-old supermodel donned the label’s sleeveless thigh-high slit dress and knee-high heeled sandals, while the Lip Kit entrepreneur, 18, looked stunning in black sleeveless jumpsuit and black pumps. Of course, both ensembles were head-to-toe Kendall + Kylie.
The fashion forward siblings celebrated their debut with momager
as well as BFFs Hailey Baldwin and
. Also in attendance were Victoria’s Secret stunners Martha Hunt, Devon Windsor and Josephine Skriver.
“We designed it according to what we love, and how our style is,” the older Jenner tells PEOPLE. “It’s someone who is really similar to us. A young girl wanting to have fun. That’s mainly what we designed.”
Although they did not serve as fit models for their collection, the Keeping Up with the Kardashians reality stars did have a say.
We absolutely tried on everything, you can’t wait to see how the finished product turns out,” Kylie shares with PEOPLE as Kendall adds, “
s an exciting process, and when everything is done you’re like ‘Wait, get me everything. I can’t wait to try it.'”
And if you follow either of them, you could give the Jenner girls a few suggestions! “I really like to ask my followers on Twitter, what they like, what they would like to see me improve and do more off. They help me a lot,” Kylie explains. “Same! You kinda see what everyone loves and you kind of feed off of that,” Kendall echoes.
The line is available at high-end stores such as Bloomingdale’s, Shopbop, Nordstrom, Neiman Marcus and Saks Fifth Avenue, a big comparison to their older half-sisters
and Khloé Kardashian whose Kardashian Kollection at struggling retailer Sears quietly stopped selling in May 2015.
– Karen Mizoguchi with reporting by Brittany Talarico