She also writes: "You may want to take up the unfortunate reality that many portrayals of sex — however distasteful or disturbing — can still be titillating. You might say: 'There's another reason I don't want you looking at pornography. People often find that they're turned on by stuff that they don't feel good about watching. I wouldn't want for you to be in the position of having your body react to something your head knows is wrong.'"