A full 13 percent of women said that fantasies of being forced to submit were their favorite. One of the more interesting studies on sex fantasies because of the variety it reveals comes from Canada. Psychologists at the University of New Brunswick in Canada asked 171 undergraduate students whether they ever had what they called sexual intrusive thoughts and found that 84 percent said that they did. Erotic fantasies begin in adolescence. Among boys, this is usually at the time of their first nocturnal emissions 11-13 years.
Fantasies begin slightly later for girls.
These sexual daydreams can be potent stuff. I was 15 years old when Caroline Fink and I were freshmen at Irvington, New Jersey, High School. I can picture it even now. We sat next to each other in a couple of classes. That much was true.