Kate Moss and Cara Delevigne
Credit: Mike Marsland/WireImage (2)

What do two gorgeous supermodels like to do in their spare time? Take pictures of each other of course! That's exactly what friends and British models Cara Delevingne and Kate Moss did this week when they snapped some racy photos of each other, which Delevingne shared on her Instagram. The photo swap idea came about while the women had a conversation about their ad campaign for Mango on Snapchat.

Moss posed in a sexy black bra and tights and Delevingne captioned the snap "SUPER KATE Photo taken by myself":

In the photo taken by Moss, Delevingne opted for Superman underwear and a fur jacket (and not much else):

The two have been palling around since they worked together on the Burberry fall fragrance campaign last year. Now they are currently starring in Mango's all 2015 campaign. On Wednesday they attended a Mango store opening in Milan and were seen sitting together at the Burberry presentation at London Fashion Week on Monday.