In the image, both women wore black fitted turtlenecks and black leggings in front of a mirror. The stars showed off their plumped pouts as they both held their cell phones up.
Kim’s hair was pulled with into a messy ponytail and Kourtney wore her long black locks down.
“Studio hoes,” 36-year-old Kourtney wrote, adding a reference to Kanye West‘s upcoming album. “#SWISH.”
Kourtney also shared a similar mirror selfie with younger sister Kylie Jenner.
Rather than a turtleneck like her elder siblings, Jenner donned a Tommy Hilfiger zip-up sweatshirt. The trendy teen’s cell phone was covered up in a pink case, bearing the artwork from Drake’s popular single “Hotline Bling.”
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Kim has remained mostly out of the public eye in the time since giving birth to son Saint West in early December.
“They’re making changes to a project they’re working on down the street but literally, when North was born they lived with me for almost two years, and then they just moved in, I don’t know, six months ago for a couple of weeks, and Kim just keeps saying, ‘Just eight more weeks, just eight more weeks,’ ” Kris explained last week, jokingly adding, “They just don’t leave, my kids do not leave.”