The theme of August on the European Review of Poetry, Books and Culture is sex and pornography. http://www.versopolis.com/column/656/the-sex-that-s-lost-in-porn

I have the same attitude toward a plot of the usual type as a dentist to teeth.
I built the book on a dispute between people of two cultures; the events mentioned in the text serve only as material for the metaphors.~
This is a common device in erotic things, where real norms are repudiated and metaphoric norms affirmed. Viktor Shklovsky, Zoo

It is impossible to track the increased frequency of masturbation through human history into the 21st century. But it is likely that it is at its most frequent in human history. It has to be. Even the most self-loving ancestor of ours, be they 100,000 or 10,000, or 200 years in the past, could not have possibly imagined the kind of sexual stimulation that immediate and unlimited access to pornography provides the average person. There are, of course, more humans than ever before, the world population has doubled since 1970, and in western societies, more people are without a partner than ever before, in context. These are grounds on which we must think of pornography and its ubiquitous but resolutely underground presence.

....

Pornography wants waste. It may be just watched. It may be something other to those who make it. It may tax the senses of those who use into ineffectiveness. It may permeate mainstream ideas and culture, though far less than people say. It may be a force for whatever moralising or shifting nihilism that breezes through too much theoretical consideration. But what it is, in all it’s remove, vivacity, anger, necessity, absurdity, sorrow and energy is a mirror. Perhaps literally, a computer screen reflecting the figure of human, spread legged or hunched over, trying not to see themselves and their own desire, placing it elsewhere, in pieces, in the past, into the excess of other bodies. Pornography need not insist upon itself then, it is the fantastical growth from the part of ourselves we are as ready to deny now as in anytime during our western past. It is an answer, not a question.