Reading - specifically who and what we read - tells the story of how we create and consume culture. Adding more diverse authors to your booklist can not only broaden your literary horizons, but have a considerable impact on your life.
Porn, intercourse, and self-satisfaction are present in everyday life. You see it and even do it. We see bodies (often naked or almost naked) in films, advertisements, music clips, magazines. Most likely, you know what porn is and even have watched it.