Her latest film Red Swastik may have failed to impress the masses but that has not deterred PETA to rope in actress Sherlyn Chopra as a model to advocate for their campaign taking up the cause of cruelty against animals. The ad has Sherlyn, clad in sexy lingerie, tied up in chains with a whip in her hand. Ace photographer Rakesh Shresta is to shoot the ad campaign. "Basically the ad says that the use of chains and whips on animals for entertainment in circuses should be discouraged," Sherlyn said. Sherlyn added that she still has to shoot for the ad. "We have yet to work out the whole concept. Rakesh is an excellent photographer and I sure he will do full justice to the ad," she said.