Kendall and Kylie Jenner are set to design a Topshop clothing range.
The sisters are reportedly in advanced talks with the high street retailer to sign a €2.6m contract which would see them configure the collection themselves and allow Topshop to be the line's exclusive stockist.
"Talks are ongoing but the family are keen to work with Topshop, who will give the brand a huge push this summer," a source told The Sun newspaper.
Kendall, 19, and 17-year-old Kylie - the youngest daughters of Kris Jenner and Bruce Jenner and half-sisters of Kim Kardashian West and Kourtney and Khloe Kardashian - are believed to have been approached by the high street clothes shop because of their rocketing profiles.
Just this week, Kendall caused a stir when she took to the catwalk for Chanel at Paris Fashion Week this week.
"Kendall and Kylie have become hugely influential in the fashion world, so it's no wonder Topshop wants to work with them. They have a massive fan base of young girls and a reach of tens of millions on social media," the source added.
Although the lucrative collaboration is not yet a done deal, the chairman of Arcadia Group - which runs Topshop - Sir Philip Green is keen to get it signed off having been impressed by Kendall when they met at the British Fashion Awards in December.
"Philip was totally taken by Kendall and made it his mission to sign her," the source added.