So Mom, I love you, but you'll probably want to stop reading right now. Same for you, Dad. Drop the newspaper or close your browser window and run. Consider this my belated teenage rebellion. Otherwise, consider yourselves warned, and allow me to reveal the one-millionth difference between the sexes.
Guys watch porn for arousal.
Girls watch porn for amusement. For the record, my experience with porn was rather limited until last weekend. All of my visual sexual knowledge came from dorm fads during my freshman year. Not for arousal purposes, although the line between arousal and hilarity is a bit blurred when said neighbor adopts a Barry White voice for reading. So given my self-imposed topic, I felt I had to do some brushing up on the science of smut.