Zara Dampney & Shauna Mullin have turned their “Bikini” bottoms for sponsorship rights

Britain's female beach volleyball champions are renting out their rears in an advertising deal that encourages spectators to photograph their behinds.

Zara Dampney, 24, and Shauna Mullin, 26, have turned their bottoms into their bottom line by wearing bikini briefs with a Quick Response (QR) code printed on the back where it will catch the eye of spectators.

When photographed on a smartphone, the code takes the user to a specific website - in this case, for bookmakers Betfair.

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Bottoms up: Shauna Mullin, left and Zara Dampney, show off the new advertising that features a  Quick Response code on their bottoms (Read more and See more Pictures)