This genius Scottish inventor went on to found the first movie production company, made the first talking movies and ... created the first porno film.
Dickson used a close relative of the Kinetoscope, a Mutoscope, to create a set of moving flip cards that could be cranked by hand while the viewer peered in.
Elaborate dress optional, but nevertheless pleasing.
Given the peepshow nature of the Mutoscope, one of its very first (and very popular) films was a classic called "What the Butler Saw."
... penis. We bet the answer is penis.
This film was the first pornographic movie in history. It showed Victorian lovelies in various stages of undress as a lecherous butler (read: you) enjoyed the scene from a keyhole. This Mutoscope reel became so popular that Mutoscopes are colloquially known as "What the Butler Saw" machines.
Because sex is something unmarried women can pretty much take or leave.