Is there anything people can learn from watching porn?
I've learned a lot from doing porn but not as much from watching it. Things can be unrealisitic, like the jackhammer sessions I've mentioned before, and the 10-gallon cum shots.
At the end of the day we're trying to convey a feeling we're experiencing by doing things that will help you experience it visually. Visual tricks only go so far once you're alone in a room with another person.