Popsugar Fashion Celebrity Fashion Kylie Jenner's Black Plunging Sequin Dress by Balmain Kylie Jenner's Plunging Black Dress Puts All Other Plunges to Shame 16 December 2019 by Sarah Wasilak View this post on Instagram @kendalljenner A post shared by Kylie ✨ (@kyliejenner) on Dec 15, 2019 at 2:10pm PST As POPSUGAR editors, we independently select and write about stuff we love and think you'll like too. If you buy a product we have recommended, we may receive affiliate commission, which in turn supports our work. Kylie Jenner posed with her sister Kendall's good friend, Fai Khadra, ahead of Diddy's 50th birthday party. Fai was just one of her dates, because we can't forget to mention Kylie's sister Khloé Kardashian, who stood by her side in contrasting, champagne-coloured sequins and also modelled in a few selfies before the event. Kylie's devastatingly sexy dress, on the other hand, was a piece from Balmain featuring a hip-high slit that defined her figure up to the waist and a deep plunge with an illusion piece holding the bodice altogether. (Trust me — this dress wasn't about to stay up on its own without any support!) The Olivier Rousteing creation came with strong shoulders, more reminiscent of Maleficent's look than the '80s pouf, and Kylie accessorised it with black stiletto sandals and her fresh bob haircut. Kim Kardashian also attended the soirée as well as Beyoncé, who brought us back to 2009 with her own nostalgic outfit. Meanwhile, Kylie upped the ante for holiday party dressing just in time, and we can't wait to shop something similarly eye-catching. We can't promise we'll plunge quite as far as Kylie did, but heck yes, we too have the confidence to experiment with captivating necklines and slits. Watch us. Related: Kylie Jenner Has Enough Vintage Chanel Snow-cessories to Fill Half My Closet Khloé Kardashian and Kylie Jenner Wearing Sequin Looks View this post on Instagram date night A post shared by Kylie ✨ (@kyliejenner) on Dec 15, 2019 at 11:17am PST View this post on Instagram 👩🏼👩🏻 A post shared by Kylie ✨ (@kyliejenner) on Dec 15, 2019 at 12:36pm PST Fai Khadra and Kylie Jenner Before Diddy's Birthday Party View this post on Instagram @kendalljenner A post shared by Kylie ✨ (@kyliejenner) on Dec 15, 2019 at 2:10pm PST Khloé Kardashian and Kylie Jenner at Diddy's Birthday Party Image Source: Getty / Kevin Mazur Image Source: Getty / Kevin Mazur Kim Kardashian, Khloé Kardashian, and Kylie Jenner at Diddy's Birthday Party Image Source: Getty / Kevin Mazur Kim Kardashian, Diddy, Khloé Kardashian, and Kylie Jenner at the Party Image Source: Getty / Kevin Mazur Shein Missord Plunge Neck Wrap Hem Sequin Prom Dress Image Source: us.shein.com Shein Missord Plunge Neck Wrap Hem Sequin Prom Dress ($51) Shein Missord Plunge Neck Wrap Hem Sequin Prom Dress $51 from us.shein.com Buy Now X by NBD Ice Melts Maxi in Black Image Source: revolve.com X by NBD Ice Melts Maxi in Black ($278) X by NBD Ice Melts Maxi in Black $278 from revolve.com Buy Now Zara Sequinned Velvet Dress Image Source: zara.com Zara Sequinned Velvet Dress ($90) Zara Sequinned Velvet Dress $90 from zara.com Buy Now Saint Laurent Bow Plunge-Neck Sequinned Gown Image Source: matchesfashion.com Saint Laurent Bow Plunge-Neck Sequinned Gown ($5,394, originally $8,990) Saint Laurent Bow Plunge-Neck Sequinned Gown $5,394 from matchesfashion.com Buy Now ASOS Design Curve Midi Dress With Batwing Sleeve and Wrap Waist in Scatter Sequin Image Source: asos.com ASOS Design Curve Midi Dress With Batwing Sleeve and Wrap Waist in Scatter Sequin ($131) ASOS Design Curve Midi Dress With Batwing Sleeve and Wrap Waist in Scatter $131 from asos.com Buy Now Michael Costello x Revolve Terri Gown in Black Image Source: revolve.com Michael Costello x Revolve Terri Gown in Black ($298) Michael Costello x Revolve Terri Gown in Black $298 from revolve.com Buy Now BCBG Sequin Gown Image Source: bcbg.com BCBG Sequin Gown ($398) BCBG Sequin Gown $398 from bcbg.com Buy Now Celebrity FashionShoppingShoppableCelebrity InstagramsFashion InstagramsGet The LookWinter FashionKylie JennerCelebrity BirthdaysKhloe Kardashian