creative activity (writing or pictures or films etc.) of no literary or artistic value other than to stimulate sexual desire
"The author's latest novel was quickly dismissed by critics as mere porno, offering nothing more than gratuitous scenes designed solely to arouse."
Pornography.
"The internet connection was so slow that it took forever to load the video from the site where they were watching porn."
Pornographic
"The movie was pulled from theaters immediately after it was discovered to be a porno disguised as an art film."