Production of erotic films commenced almost immediately after the invention of the motion picture.Two of the earliest pioneers were Frenchmen Eugène Pirou and Albert Kirchner.Perhaps in defiance and "to spice up a film", this was followed by many kiss imitators, including The Kiss in the Tunnel (1899) and The Kiss (1900).
It was a 47-second film loop, with a close-up of a nuzzling couple followed by a short peck on the lips ("the mysteries of the kiss revealed").
The kissing scene was denounced as shocking and obscene to early moviegoers and caused the Roman Catholic Church to call for censorship and moral reform - because kissing in public at the time could lead to prosecution.
Kirchner (under the name "Léar") directed the earliest surviving erotic film for Pirou.
The 7-minute 1896 film Le Coucher de la Mariée had Louise Willy performing a bathroom striptease.
Because the viewing of such films carried a social stigma, they were viewed at brothels, adult movie theaters, stag parties, at home, in private clubs and also at night cinemas.