The reality star was giving Kim and Khloe a run for their money in this H๏τ design
While Kim Kardashian, Kendall and Kylie were all being kitted out in couture for the Met Ball, Kourtney was busy soaking up the sun in Miami.
The mum-of-three, 43, was pictured poolside on Monday while she enjoys some rest and relaxation in Miami.
Kourt looked smoking H๏τ in a bright white swimsuit which highlighted her slim waist and enviably toned limbs.
The yummy mummy finished off the sizzling look with a pair of mirrored sunnies and a delicate gold necklace.
Though the reality beauty was in danger of flashing a little too much when her swimsuit almost turned see-through as she climbed out of the pool.
Later on that day she was seen playing with the kids – Reign, Mason and Penelope – as they all splashed about in the pool together before heading down to the beach to catch some more rays.
Meanwhile, over in New York the rest of the family were posing for pictures on the Met Gala red carpet.
While Kendall, 20, opted for a stunning Versace couture designs and Kylie made her mark also in Balmain
Momanger Kris, who stuck to her signature black look, was also there with boyfriend Corey Gamble.
Kourtney holidays in Miami