While the two dresses are very different, with Kylie's showing more skin and Kim's relying on a heavy dose of glamorous feathers, there's no denying that both make use of the sexy sheer thing.
If there's a serious question about which Kardashian family member wore the sheer dress first, we'd have to give the win to Kim. As the older sis, she's been attending red carpet events for longer than Kylie, racking up more opportunities to go sheer. Her new, Kanye-aided style sophistication has also seen her turn the tarty fabric into something that's undeniably chic, as evidenced by the see-through skirt she chose for a visit to Jimmy Kimmel's set this spring.