Kendall Jenner Goes Topless While Modeling Red Thong in New Ad Campaign -- See the Racy Shot!

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Well, there's no confusion as to what she's selling!

Kendall Jenner took to Instagram on Tuesday to share a new image from her latest campaign for La Perla, in which she models a lacy red thong -- and nothing else.

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The 21-year-old model rocks a perfect red pout in the sexy shot, as she stares into the camera with her booty on full display.

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Jenner certainly doesn't mind showing off what she's got. In fact, the Keeping Up With the Kardashians star sported a sheer, booty-baring La Perla gown to the Met Gala in May. 

See the head-turning look in the video below.