Cara Delevingne

Cara Delevingne and Selena Gomez splash around in St Tropez

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Rex Features

First we saw snaps of Naomi Campbell and Kate Moss on holiday in Ibiza, and the latest celeb BFFs to take a trip together are supermodel Cara Delevingne and ex-Disney star Selena Gomez, who were seen splashing about in St Tropez together.

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Rex Features

As you do when you're an A-list celeb.

The hot duo were aboard a luxury yacht, but soon plunged in for some respite from the heat.

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Vantage

Surprisingly, Cara looked far from high-fashion in knee-length red shorts and a plain black bikini top, while Selena wore a stunning white one-piece as she pulled off several modelesque poses while on board.

The pair later changed - Cara into white dungarees and a stylish royal blue hat, and Selena into a chic monochrome outfit.

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Rex Features

We'll trade lives with you anytime, guys!