Do none of these sisters know how to dress for a wedding?

Kim Kardashian attended friend and former assistant Stephanie Shepherd’s nuptials Saturday, clad in a strappy, cutout-covered Alaïa dress that left little to the imagination — and made Kendall Jenner’s infamous risqué wedding guest dress seem downright demure in comparison.

The 42-year-old Skims founder’s look for the Beverly Hills bash included a barely-there bodice that framed her abs and famous curves, along with a second-skin lace-up skirt with a curiously placed crotch cutout (thankfully, she had black briefs on underneath).

Believe it or not, Kardashian’s version of the design was more conservative than the one originally shown on Alaïa’s spring 2023 runway, which traded the reality star’s racy bra-inspired bodice for a completely see-through turtleneck.

In 2021, 27-year-old Jenner similarly showed up at a pal’s wedding wearing a skin-baring black gown by Mônot that sparked a social media firestorm, with users deeming it an “inappropriate” and “disrespectful” choice for the occasion.

At the time, the model defended her dress by clarifying that she asked bride Lauren Perez’s approval in advance, with her BFF backing her up by saying she looked “stunning” in the scandalous style.

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Here’s hoping Shepherd feels the same way about Kardashian’s body-baring LBD — although the Skkn by Kim creator wasn’t the only one showing skin at her wedding.

For the same ritzy affair, Hailey Bieber selected a risqué backless turtleneck gown that flashed plenty of sideboob.

Other major names at Shepherd’s nuptials included Justin Bieber, Naomi Campbell, Timbaland, La La Anthony and Swizz Beatz and wife Alicia Keys, along with fellow Kardashian-Jenners Kris and Kourtney — the latter of whom brought along husband Travis Barker.