...except on Sundays.
Sunday morning is proving a popular time for watching pornographic movies, a video on demand site has found.
Analysis of viewing figures shows peak demand for FilmOn's "naughty movies" was around 1116 GMT on Sunday.
By contrast, internet analysts Hitwise found that usage of video sites peaked on Sundays but more traditional adult sites experienced a dip.
Sundays, it said, was the top day for visits to internet shopping and social networking sites.
Explaining the film viewing data, Alki David, founder of FilmOn, said: "The data applies to both men and women and it certainly poses the question about what has happened to the traditional 'day of rest' in Great Britain.