But in a new Instagram Stories, Kylie Jenner revealed she and Kim Kardashian accidentally turned up wearing the same outfit, and they genuinely could be clones of each other.
"My sister wanted to show up in the same outfit," Kylie told her 225million followers, while Kim says in the background, "We're twins!" Kylie also wrote over the video, "THIS ACTUALLY WASN'T PLANNED."
In the Story, both Kim and Kylie sport long dark hair and a red snakeskin corset and black straps showing from underneath. They also wore leather on the bottom, with Kim choosing trousers while Kylie went for a skirt.
Talk about being in sync.
Fans have been sharing the video on social media, and can't get over how similar the half-sisters look. "Twins," one fan wrote on Twitter, while another added, "Who wore it best?" with the cherry emojis. A third said, "Wow Kim and Kylie look so alike."
This isn't the first time the pair have been photographed in matching outfits recently. During a recent holiday with Khloe Kardashian, the three sisters wore complementary beige bikinis with their hair down long, sharing matching pics to their Instagram feeds.
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