The UK movie Secrets of a Door-to-Door Salesman was released in the U.S. by Cannon as Naughty Wives, which is definitely a dirtier if not better label for this.
David Clyde (Brendan Price, who was also in the British sex comedy The Amorous Milkman) gets a job as a vacuum salesman and soon finds that he’s being chased by women.
Director Wolf Rilla is best known for Village of the Damned while writers Joseph McGrath shot some of the first music videos with The Beatles and Denis Norden wrote a lot for David Frost.
This is pretty much true to form for most British sex comedies — a funny line here and there, some nudity there. Today it seems quaint but I’m sure in 1973 pulses raced.