"the output of pornography"

Examples of Victorian written pornography still exist: full editions of The Pearl, an erotic magazine published between 1879 and 1881 can be found here.  The first issue includes stories of flagellation, female orgasm and ejaculation, and the seduction of a thirty-year-old man by an eleven-year-old girl.

Sarah Waters tackles the subject of Victorian pornography in depth in her novel Fingersmith.