And they're back!

After a lightning quick trip to Cannes, Kim Kardashian flaunted her cleavage when she touched down at LAX on Wednesday afternoon. The reality star only arrived to Cannes from NYC on Tuesday, so we're a little shocked to see her leaving French Riviera so soon!

The mother and daughter were at the famed Hôtel du Cap last night for the annual de Grisogono jewelry Cannes party, which is one of the gliziest bashes at the film fest. But it must have been all the gals needed because they were jetting out of France soon after!

The mother of two traveled across the ocean with her mother Kris Jenner (we're shocked to see that Kris could part with BFF Scott Disick for a hot minute), who opted for a denim-on-denim ensemble for the international flight.

Is it just us or does Kris look absolutely bizarre in her Japanese tourist ensemble?!

Kimbo sexed up the friendly skies with thigh-high suede boots and a skintight cream dress and cream-colored safari jacket. We have no idea how the selfie-loving star managed to wear that ensemble for hours upon hours -- but when you are Kim K discomfort is a small price to pay to look fabulous.