Kourtney Kardashian lives the life of luxury.

And from the looks of her Instagram, she's not shy to put her insanely sculpted body on display in barely there bikinis. With her flat stomach and curvaceous bottom, you'd never guess that she's a mother of three.

So, as we near Labor Day and the end of summer, click through our favorite smoking-hot bikini photos of the celebrity. They'll keep things hot, even when the temperature drops.