It's a bird, it's a plane… it's Cara Delevingne in Superman undies.

The model and Kate Moss undressed for Instagram, where the two British beauties posted barely-clothed pics of each other on Wednesday.

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Ooh la la, Cara! "#SuperWomen: photo taken by Miss Moss," she captioned the pic. The racy snapshot shows the "Paper Towns" actress (and card-carrying member of Taylor Swift's girl squad) in a sexy-chic outfit that could save the world. And then, of course, there's the strategically placed star, which still leaves very little to the imagination.

Also, who needs a cape when you've got a fur coat? 

Kate's pose is equally sexy. Sprawled out on a sea of white sheets, the iconic model -- who Cara hashtags as #SuperKate -- gives the camera her legendary come-hither gaze in just see-through leggings and a black bra.

Kate, 41, and Cara, 23, share more than just a bed. In September 2014 the supermodel gal pals collaborated for the first time on camera during a Burberry campaign.

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"Kate Moss, I just knew exactly who she was," Cara said in a Topshop video about her inspiration. "She was the face, she was the icon."