The reality star, who once revealed she tried to emulate Kourtney's maternity style, matched her older sister in a new Instagram photo.
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.
The mogul and her family have been living at matriarch Kris Jenner's home while their own house is renovated.
"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."