by Olivia Barker, USA TODAY
With the Kardashians, it's deep decolletage one day, exposed derriere the next.

Kourtney Kardashian had a Marilyn Monroe moment Thursday - a very modern one.

Twirling with sister Khloe on a Miami hotel balcony, the mom of two's canary yellow short circle skirt blew up - but instead of revealing a pair of demure drawers a la Monroe in her famous Seven Year Itch subway grate scene, Kourtney flashed a whole lotta flesh.

Considering the reality show cameras were rolling, as always, perhaps this slightly NSFW shot should be chalked up to a wardrobe function.

USA TODAY