Of course, if the girls didn't pose in their amazing outfits and take 100 pictures, then did it really happen?
Well, we're grateful for their impromptu after-party outfit photoshoot, because it brought us to Kendall's dress which will be available online from April.
The Kardashians have one of the most envied wardrobes in the world, so we can only imagine this information will make many Kendall style-fans and fashion lovers very happy!
Shop Bec and Bridge here.