Kourtney Kardashian Wears See-Through Lingerie While Out With Justin Bieber

Kourtney Kardashian wore a particularly sexy outfit to hang out with a man she claims she is “just friends” with on Saturday.

The oldest in the Kardashian clan was spotted with her ex-fling Justin Bieber at the Peppermint Club in West Hollywood wearing a sheer top that could have been a nightie.

However, there was a reason for her bedtime-themed ensemble. Kourtney had just left a birthday pajama party for Cash Warren, Jessica Alba’s husband, when she decided to meet up with Bieber. And unlike a move her younger sister Kim might have made, Kourtney opted out of the opportunity to wear multiple outfits in one night.

Instead, she stayed in a completely see-through black bodysuit from La Perla. The $378 sheer leotard featured an underwire, giving the top a bra-like structure, and a scrolling floral pattern that did not help cover her breasts much at all.

So as not to give it all away, though, Kourtney covered up with a black silk pajama set made up of a long-sleeved button-down shirt (which was obviously left unbuttoned) and loose pants. She completed the boudoir look with fluffy, fur-trimmed, slipper-like heels.

Other celebrities who attended Warren’s pajama party went a more comfortable route, however. Chrissy Teigen and John Legend wore matching KFC-themed onesies.

Related: Kourtney Kardashian and Kendall Jenner Were Twinning in Red Sweatsuits

Related: Kourtney Kardashian Wore the Coolest Gold Short Suit on the Ellen Show

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