Why do guys like watching porn so much?

To paraphrase a response to this question that I have received by a male friend, "How can anyone not like porn? It's Awesome!". Porn has become almost completely mainstream these days, and young men in particular seem to appreciate this shift in social perception. Watching attractive people have sex can be highly arousing for both men and women. In fact, porn is often used during sexual therapy treatment to increase sexual arousal in individuals with low response levels. Men are VERY visually oriented and certainly for many, the next best thing to actually having sex is watching someone else do the deed. Of course, an interesting fact of erotica is the very brief amount of time actually spent watching the material! - probably about five minutes in most cases...