Fans have followed the Kardashians for decades, but it's hard to realize their kids are growing up.
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Kourtney Kardashian, 43, stunned Instagram users Thursday with photographs of 10-year-old Penelope Disick dressed up.
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The pre-teen wore a pink dress with a square neckline and spaghetti straps. She wore her natural-color hair down and straight to frame her lovely face.
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Poosh's younger brother, Reign Disick, 7, looked suave in dark overalls and a graphic T-shirt. He was smiling, too.
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“P looks so grown,” one user wrote under a 10-slide carousel from Kardashian's Lemme launch party.
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"Omg, that's Penelope?" screamed another.
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Kardashian and ex-boyfriend Scott Disick, 39, have Penelope, Reign, and Mason, 12.
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Travis Barker was there, but not Scott Disick.
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During the occasion, the reality star was spotted with the Blink-182 drummer, 46.
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Mrs. Barker wore a figure-hugging dress with water-droplet patterns and a neat haircut. The rocker wore a baby-blue sequined button-down, dark slacks, and black sunglasses.
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Khloé Kardashian went viral for the wrong reasons with Lemme.