Kylie Jenner and Kim Kardashian Are Twins in Matching Black Bikinis

Kylie Jenner and Kim Kardashian spent some quality sister time together by the pool.

The Kylie Cosmetics founder shared photos from a recent hangout with her big sis on Instagram yesterday. In the pictures, the two pose together while sitting on a lounge chair by a pool. The duo match in black triangle bikinis.

“You my twin 🤞🏼,” Kylie wrote in the caption.

Sister Khloé Kardashian commented, “👯‍♀️.”

Kim also added in the comments, “Always and Forever.”

Meanwhile, over on Kim’s Instagram account, the SKIMS mogul shared photos of herself and Khloé wearing matching bralette-and-maxi skirt sets. The ab-baring tops included square necklines, while the skirts featured thigh-high leg slits with mini chains.

Kim, who wore a light gray iteration of the set, accessorized with a sparkling belly chain and necklace. Khloé wore a black version of the two-piece and further complemented the look with stacks of bracelets, layers of necklaces, and a red-hot mani.

Kim referenced their family nicknames in the caption, writing, “Kiki & Koko ♾️.”

“Forever ♾️,” Khloé replied in the comments.

Kylie, too, heaped on the praise in the comments section. “Cutest,” the youngest sister wrote.

Old friend Paris Hilton joined in, commenting, “Hotties 🔥🔥.”

Kylie has been showing off a string of bikini looks via Instagram lately.

Earlier this month, the mom of two posted photos of herself soaking up the sun in a lavender lamé bandeau bikini and a color-blocked Chanel thong bikini. She additionally shared photos of her tropical vacation look, including one that featured a mesh crop top and a low-slung green miniskirt that showed off her exposed thong straps.