Kim Kardashian's little sister, model and designer Kendall Jenner, has given herself a 10-year window to become a mum.

The reality TV regular, who launched her new clothing collection Kendall + Kylie with sister Kylie in New York on Monday (08Feb16), reveals she wants to be a mother by the time she's 30.

And her family dreams have already sparked ideas for stylish maternity clothes, like the outfits Kim wore last year (15), when she was pregnant with her second child, Saint.

"Hopefully I'll be a mum in 10 years," Kendall, 20, who is currently dating Harry Styles, told Extra. "I'll have a family so I'll be, like, making maternity clothes."

The Jenner sisters took turns in describing each other's style at the launch of Kendall + Kylie, with Kendall suggesting her teenage sibling loves "edgy and different and cool" designs, while Kylie told Extra, "I think hers is, I would say simple, classy."

The sister's manager and mum, Kris Jenner, was also at the launch bash, and admitted she couldn't be prouder of her youngest daughters.

Kris told the news show she has very little input when it comes to her kids' fashion interests, stating, "They might ask Kanye (for style advice) but they're not going to ask me."

Kendall and Kylie are not only hits in the business of fashion - the sisters are also in-demand models, and Kendall recently joined model siblings Bella and Gigi Hadid on the catwalk at Paris Fashion Week.

The trio was among the lovely ladies showing off the latest Karl Lagerfeld designs.