The two sisters were pictured at The Grove - a retail complex in LA - on Wednesday afternoon (4 December) and chose to dress similarly for the occasion, opting for black and white.
Kylie, 16, flashed some skin by donning a plain white cropped T-shirt and made a statement in a pair of black flared trousers.
She kept the rest of her look super simple, adding a pair of black trainers and some sunglasses to shield her eyes from the Los Angeles sunshine.
Meanwhile, 18-year-old model Kendall - who celebrated her birthday last month - matched her sister by sporting a white vest top and black leggings, which she teamed with a long cardigan and some black and white trainers.
She also donned some sunglasses and completed her look with a large black fedora hat.
The pair of reality TV stars proved to be girls after our own hearts, as they were soon seen stocking up on clothes from Topshop and indulging in some frozen yoghurt with all of their shopping bags afterwards.
Earlier this week, the Kardashian-Jenner family shared their annual Christmas card with fans and it may just be their most glamorous and over the top card yet, since each female member was dressed to the nines in a gorgeous gown.
Elder sister Kim released a behind-the-scenes video of the Kardashian-Jenners, including Kendall, Kylie and their dad Bruce, preparing for the festive shoot on set.
What do you think of Kylie and Kendall's colour co-ordinated outfits? Let us know below, as the best comment from across the website each week wins £50!
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