The Duke and Duchess of Cambridge have topped a racy new poll to find the celebrity couple the world would most like to see naked - for the second year running.

Prince William and his pregnant wife Catherine beat another expectant couple, Kim Kardashian and Kanye West, on adult porn company Vivid Entertainment's Top 10 Hottest Couples' Celebrity Sex Tapes Wish List.

Vivid founder/co-chairman Steven Hirsch tells Wenn, "The newest royal couple is still our top choice. It seems that almost every move they make is documented - except for having sex. Without question, this would be an international best seller. Just behind them are Kim and Kanye and this is verified by an incredible spike in video-on-demand sales of our original Kim Kardashian Superstar title since Kim's pregnancy was announced."

Meanwhile, Jay Z and Beyonce are third on the list, Jennifer Aniston and Justin Theroux are fourth and Justin Bieber and Selena Gomez round out the top five.