So, in case you missed it, Kourtney Kardashian is slowly stealing the title of curviest Kardashian from her sisters. And the mother-of-three's most recent Instagram post from her girls’ trip to Nantucket is here to remind us, yet again, that her bod just keeps getting better and better!

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In a beach-front bikini-clad pic, Kourt can be seen sipping on wine — but what’s really apparent is her booty, which seems to be growing more and more as the days go on! And while ex Scott Disick was making out with youngster Emma Blanchard all weekend in the Hamptons, it’s clear the eldest Kardashian remains unfazed.

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all week🍦🍔

A post shared by Kourtney Kardashian (@kourtneykardash) on

Though the 38-year-old has openly talked about her insanely strict diet, from the looks of social media, she is letting loose a bit — or so she claims. Besides captioning this bikini snap with an ice cream and a burger emoji, Kourt also sexily posed on Snapchat with an ice cream cone between her legs.

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When the Keeping Up With the Kardashians star isn’t on vacation, though, don’t expect anything sugary, high-carb, or delicious to pass her lips. Combining a diet that contains basically no gluten, dairy, or sugar with intermittent detox days is what gives Kourtney her killer abs. And while the diet is clearly working, she has admitted that restricting herself can be difficult.

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she's not a local.

A post shared by Kourtney Kardashian (@kourtneykardash) on

In a post on her app, the brunette beauty revealed she has been detoxing “on and off for a few months now” after realizing her mercury levels were too high. On days where she eats, she does have three meals that are low-carb and high-protein. But once a week, Kourt will go 24 hours without eating — only drinking water and bone broth.

“On fasting days, I try to stay busy and, if I’m home, I’ll avoid going into the kitchen,” she said. “I’m not going to sugarcoat it, this detox is difficult. I also know that I need to enjoy my life, so I break the rules when I go on vacation or if there’s a special occasion.”

Now, if only there was a way to get a body like that without giving up pizza…