Kourtney Kardashian is the oldest of the KarJenner sisters, but age is just a number for this “Keeping Up with the Kardashians” star! The mother of three has served fierce looks throughout the years, and it helps that she applies the same energy in the gym (where she visits up to six times a week). Kourtney rocks her toned and lean figure here at the amfAR Gala New York AIDS research benefit at Cipriani Wall Street on Feb. 6, 2019.

More of Kourtney’s hottest looks include that one time she rocked a skintight jumpsuit with a Mona Lisa pattern, and that other time she flaunted some cleavage in an asymmetrical bodysuit. And don’t forget the countless times Kourt has rocked a tiny bikini, as you’ll see in this roundup! We’re expecting to see even more sexy looks emerge in the near future, as Kourtney just launched Poosh, a lifestyle blog, on April 2, 2019.