But we think it may not have been a slip at all.
Kardashian wore a tie-up sheer lace corset top to the event, sans a bra. Of course, she wore a black satin jacket over the top to cover herself but the jacket wasn't zipped, if you catch our drift. So all it took was some shifting movement for the jacket to fall to the side, exposing Kardashian's nipples.
Uh, she had to have known the corset was sheer, right? I mean, look at the thing! There is no way the skin exposure was entirely accidental. She had to have known that people were going to get to peek at more than they bargained for.
The sheer top is quickly becoming a Kardashian/Jenner trend.
This is far from the first time the Kardashian/Jenner ladies have flaunted their lady lumps in sheer outfits. Kendall Jenner wore a completely sheer outfit to Paris Fashion week back at the end of September, which exposed her backside and her nipples. Kim Kardashian also showed off her nipples back in September during New York Fashion week in a similarly sheer getup, and again in June at the 2015 Glastonbury Festival.
We also know that Kourtney is more than OK with showing a little skin. She stripped down completely for her revealing and stunning shoot with Vanity Fair, which was just unveiled a few weeks ago.
Our guess is that Kardashian is just simply jumping on the sheer bandwagon with her corset top.
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