Secrets of a Super Stud (also known as It's Getting Harder All the Time and Naughty Girls on the Loose) is a 1976 British sex comedy film directed by Morton M. Lewis and Alan Selwyn, and starring Anthony Kenyon, Mark Jones and Margaret Burton.

Custer Firkinshaw, the owner of Bare Monthly magazine is up to his neck in dirty pictures and sexy secretaries.

The general release prints and the hardcore version were processed at Kay Labs at Highbury, North London.

"[2] Secrets of a Super Stud contains several songs that relate the film's plot as if it were a western, using many double-entendres (‘Custer’s last stand’, ‘quick on the drawers’).

Otherwise, plot, gags and characters could only be the wish fulfilment of a computer programmed to produce the ideal British Blue Movie.