Help with using BeNaughty: Should I register again to use your service on mobile?

No, you don't have to sign up twice. You can use the same login details as you do for the BeNaughty web site – there's no need to set up another account.

18 U.S.C. 2257 Record-Keeping Requirements Compliance Statement

BeNaughty ranked #8 among all UK websites
in the Hitwise Lifestyle - Dating industry, based on
market share of visits in January - December 2011.