Kendall and Kylie Jenner have created their own fashion line!
The sisters spoke with ET at the launch party for their new clothing line, Kendall + Kylie, in New York City on Monday, where they opened up about stepping into the role of fashion moguls.
"We just decided it's something we wanted to do on our own and give the fans exactly what they wanted from us," Kendall told ET's Carly Steel of their new collection, which she called "our more mature, stepping-it-up line."
WATCH: Celebrity Clothing Lines to Get Excited About!
While their brother-in-law, Kanye West, who showed up to offer his support, has already found success starting his own brand of high-end footwear, the girls said they didn't reach out to him for help. "He is so creative but he didn't give us any advice," Kylie shared.
"I don't think we wanted anyone else's opinion other than ours," the 18-year-old reality star added. "We wanted it to be really organic and truly representing our styles."
WATCH: Kylie Jenner Says Mom Kris Jenner Cut Her Off Financially When She Was Just 14
That doesn't mean the girls didn't find inspiration in the style icons who have come before them. "I love ‘90s Kate Moss style and I love Miranda Kerr's style and Rosie Huntington-Whiteley," Kendall shared.
She also admitted that they were inspired by their older sisters, Kourtney, Kim and Khloe Kardashian, because they're "surrounded by [them] every day."
WATCH: Kylie Jenner Praises Lip Fillers, Disses Heavy Makeup: 'It's Not Attractive on Me'
While Kendall has been killing it in the world of fashion modeling -- including a splashy debut at the Victoria's Secret Fashion Show in December -- Kylie's been following closely in the footsteps of her mother, Kris Jenner, to become a successful entrepreneur.
When asked what she’d say was her job title, Kylie didn't hesitate with her answer, "Businesswoman." But she also proudly boasted that she's like a "mini-Kris Jenner." Hear that, Kris?
WATCH: Check Out the 12 Cutest Looks From Kendall & Kylie's New Fashion Line