Kendall Jenner and Cara Delevingne Are Topless and Licking Each Other

Kendall and Cara are not your average besties.

We already knew Kendall Jenner and Cara Delevingne were close, but the model BFFs might have just took things to a whole new level.

Cara took to Instagram on Wednesday to share this pic of her licking Kendall's bare shoulder -- with Kendall licking her forehead in return -- both appearing to be topless.

"#CaKe," Cara simply wrote, combining their names together.

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Fittingly, Kendall also recently posted this video of the two dancing to Rihanna and Chris Brown's hit "Cake."

This isn't the first time the 24-year-old British model and 19-year-old Kendall have gotten super-close. Aside from walking Chanel runways together, Kendall memorably straddled Cara for the eyebrow-raising cover of Love magazine last December.

The in-demand models have been busy lately, Kendall especially thanks to her Estee Lauder campaign and her new Topshop line with her younger sister, Kylie Jenner. The stylish sisters recently played a game of "Which Sister?" for, and not surprisingly, the two hilariously didn't agree on questions like, "Which sister takes the most selfies?" or "Who's nicer?" However, they did reveal that despite Kylie's penchant for Popeye's fried chicken and Kendall's supermodel physique, it's actually Kendall who eats the most junk food.

"I've always been good," Kylie, 17, says. "I have a kale salad and an organic juice waiting for me when I'm done."

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Watch the video below to see Kendall rocking a white bikini in April for the cover for GQ.