Kardashian, 38, shared the teaser Thursday to announce her new cosmetics collaboration with Jenner, 21, will debut Nov. 23 on Black Friday.
The Keeping Up with the Kardashians stars wear identical lob hairstyles and brown bodysuits in the promo for the new KKW X Kylie Cosmetics collection.
"KKW X KYLIE 2 COMING TO kyliecosmetics.com BLACK FRIDAY," Kardashian captioned the post on Instagram.
Jenner shared a different teaser on her own account of herself and Kardashian with wet hair and white bodysuits.
"KKW X KYLIE part 2... coming #BlackFriday to KylieCosmetics.com," she wrote.
Kardashian and Jenner released their first collaboration together in April 2017. Kardashian praised her sister in July after both she and Jenner appeared on Forbes' 2018 list of the 60 Richest Self-Made Women.
"She [took] an insecurity of hers and [figured] out how to make a really successful business off of it," she told Refinery29, referencing Jenner's lips.