Former WWE superstar Chyna released a sex tape seven years ago and now she is making a triumphant return to the adult industry in an extremely graphic porn film. According to Vivid President Steve Hirsch, Chyna approached him months ago demanding to work with the biggest male porn star in the business and Hirsh hooked her up with not just one but two of the biggest male porn stars – Evan and Lee Stone and the three shot a porn flick called “Backdoor into Chyna”.