Kourtney Kardashian In Plunging Bikini 'Looks The Best' In Ocean With Sisters

Kourtney Kardashian took a matter of hours to be singled out as the "natural" sister when sister Kim Kardashian updated her Instagram on Friday. Posting to celebrate sibling Khloe Kardashian turning 41, the SKIMS founder shared ocean snaps of all three sisters, offering a rare view of the threesome all in swimwear. Showing off vacay moments as she posed in the ocean with her nearest and dearest, Kim dropped a gushing caption for Good American founder Khloe, but the comments section seemed more interested in Kourtney. Users quickly shaded Kim and Khloe for being on the plastic side, with one user gaining likes for saying that Kourtney "looks the best."

Scroll for the photos. Clearly splashing out on their high budget, Kourtney, Kim, and Khloe posed from a tropical destination, standing in shallow waters and backed by a palm-fringed beach.

In her first slide, Kim posed in a plunging khaki bikini, going stringy as she displayed her killer curves and 24-inch waist. Meanwhile, Khloe towered over her billionaire sibling while stunning in a leopard-print bikini with a high waist. In a swipe right, fans got to see Kourtney, who recently celebrated her 46th birthday.

While another slide showed Kim goofing around with Khloe in the ocean, the final slide brought in Lemme founder Kourtney. The mom of four wowed in a tiger-print bathing suit, opting for a plunging bikini in black and white while showcasing her killer body. In a caption, Kim began: "Happy Birthday Queen Kokes! There is no one like you @khloekardashian… the way you live your life, the way you are the best mom."

Kim added that Khloe has a knack for making "it all look so easy and fun," plus how much she enjoys "doing life" with the mom of two. Kim may, however, not have expected a response so geared toward elder sister Kourtney.

Over 1,000 fans liked a comment reading: "I love when Kourtney enters the chat." Also popular was the fan replying: "Kourtney is the only one with a natural, cute shape."

While one user shaded the alleged "BBLs" going on, another said: "It’s Kourtney effortlessly eating them alive," with a third replying that Kourtney looked "the best" out of all three sisters.

The KarJenner clan regularly sparks allegations of plastic surgery. While Khloe has admitted to a nose job and melanoma removal, Kourtney has confirmed she had a boob job at the age of 22. The post caught over 700,000 likes in five hours, including one from supermodel Hailey Bieber.

Kourtney Kardashian wowed fans in May with this swimwear snap on Instagram, posting a natural-looking photo while in a white bikini.