Kendall and Kylie Jenner in Instagram leak

Kendall and Kylie Jenner have shared a sneak peak of their new collection for Topshop on Instagram in images showing the pair hard at work making their final decisions on designs.

The reality TV sisters - who announced they had partnered with the high street retailer to create their own line, entitled Kendall + Kylie, earlier this year - took to their new kendallandkylie Instagram account to reveal they are in the final stage of the design process.

In one image Kendall, 19, and Kylie, 17, can be seen pondering over coloured sketches of garments, including jumpsuits and cropped t-shirts.

The photograph is captioned: "Designs on the mind. #decisionsdecisions"

A sketched image of the 'Keeping Up With The Kardashians' stars shows them sporting lace-up bralets and halterneck tops.

Alongside the picture they wrote: "Dreams in progress..."

The siblings are set to launch the range, which is inspired by their "LA lifestyle", exclusively with Topshop this summer.

Kylie previously tweeted: "Big news! Me & @KendallJenner are launching a line exclusively at @Topshop! (sic)"

While Kendall posted: "So excited! Me & @KylieJenner are launching a line exclusively at @Topshop! (sic)"

A post on Topshop's official website read: "Topshop to be the exclusive global stockist of the KENDALL & KYLIE young contemporary collection. A collection designed by sisters Kendall and Kylie Jenner will be stocked exclusively at selected Topshop stores globally and online.

"Launching for Summer 2015 the collection will comprise a capsule summer wardrobe, characterised by the girls' LA lifestyle and their contemporary, eclectic design aesthetic (sic)"

Follow Emirates 24|7 on Google News.