Khloe Kardashian wears an ultra-tight dress with Kylie Jenner and

The 31-year-old was spotted showing off her curves and her underpants in Calabasas, California, on Friday.

Kylie Jenner just wore a skin-tight plunge-neck latex dress, but

Khloé Kardashian celebrates birthday in pink latex dress

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The Kardashians and Kylie Jenner dress as Kris Jenner to celebrate

Kylie Jenner and Khloe Kardashian promotion party Sprinter Vodka

Khloe Kardashian and Kylie Jenner reveal their shrinking butts in

40 Times the Kardashian-Jenner Sisters Rocked Mini-Dresses

Khloe Kardashian calls momager Kris Jenner 'a f—ing liar' – New

Khloe Kardashian and Kylie Jenner reveal their shrinking butts in

Celebrities Wearing Kim Kardashian's Skims Shapewear: Pics

Kylie Jenner wears blue contacts and tight suede mini-dress

Kylie Jenner Spent Kourtney Kardashian's Wedding Shading Kendall

Kim Kardashian in a Super-Tight Tube Dress and Tom Ford Chain

Khloe Kardashian's holiday home looks like a royal palace