While her sisters were over in LA attending the Teen Choice Awards, the eldest Kardashian was enjoying an evening in the exclusive Hamptons.
Kourtney, 35, and long-time boyfriend Scott Disick, 31, were pictured at the Women's Health Hosts Hamptons Party Under The Stars for RUN10 FEED10.
The fundraising initiative aims to get people to run 10k with Women's Health and therefore provide 10 meals for those going hungry in their local neighbourhood.
We're not sure pregnant Kourtney will be running 10k herself right now, but she was happy to support the event.
Kourtney wore an elaborate white lace jumpsuit that highlighted her stomach and golden tan. (No doubt courtesy of the Kardashian sisters' latest venture: Sun Kissed Tan.) We can't help thinking though, is that not a nightmare to get out of in the bathroom?!
The pregnant star has been in The Hamptons all summer as the latest Kardashian spinoff reality show, Kourtney & Khloe Take The Hamptons! is filmed.
The series will follow Kourtney and sister Khloe as they launch a pop up Dash boutique in the posh New York area. While third sister Kim isn't a regular cast member, she is expected to make appearances.
No doubt plenty of the storyline will revolve around Kourtney's pregnancy.
She announced in June that she was expecting her third child with Scott. They are already parents to son Mason, four, and one-year-old daughter Penelope.
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