Awkward! Kylie Jenner wore the exact same dress as Justin Bieber's rumored ex, Chantel Jeffries, to a party in LA on Thursday.

The girls, who were celebrating the US launch of retail brand PrettyLittleThing, posed together for a set of pics in their matching asymmetrical outfits — though Kylie sported the orange version, while Chantel rocked the light pink hue.

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When you show up in the same dress 😏

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In one Instagram snap, the 18-year-old reality star jokingly covered up the 22-year-old's boobs, which were busting out a little more than Kylie's during the event.

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Cover up the warlocks 😊😊😊

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Who do you think wore it better?! For more of Kylie's sexiest Instagram photos, scroll through the gallery below!