The reality TV superstar wore an incredibly small designer bikini in a new photo posted to Instagram.
"Chanel vintage, lets please be specific," she wrote in the caption. More than three million people liked the snap in less than 24 hours.
As the New York Post notes, the Chanel "Nipplekini" debuted in 1996 as a part of the French fashion company's spring collection.
Supermodel Eva Herzigova modeled the same undersized garment on the runway that year. Kardashian also wore it earlier this week.
It may be the most revealing look Kardashian has donned recently, but there are plenty more sexy pics to be found on her Instagram feed. Here's a sampling: