By Kelsey Glein
Updated May 16, 2016 @ 5:30 pm
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Jim Spellman/WireImage

Talk about one sexy set of siblings. Khloé and Kourtney Kardashian stepped out for the NBC Universal Upfront in New York City today looking better than ever, where they showed off their toned physiques in head-turning ensembles, Kourtney in a silk LFrank Lingerie 'Gaia' bralette.

But just how do they keep their wow-worthy figures in tip-top shape? By eating food from Popeyes Louisiana Kitchen.

Khloé took to Instagram to share a snap from their flight on a private jet to the Big Apple (note their matching Hermès Birkin bags), where she revealed what the duo likes to eat on their cheat days. "Yummmmm!! I couldn't wait!!! Popeyes on the PJ!!! Cheat day but it's so worth it!!!" she captioned a 'gram of her and her older sister chowing down on their chicken.

Kourtney also shared her own similar picture from the journey, writing: "Popeyes on the PJ. #cheatday."

While digging into these meals isn't a regular occurrence for the sisters, we'd say the happiness that fried chicken brings is well worth the extra crunches.