and we're back with social psychologist justin leonard talking about nature of human sexuality all right justin so you have written a book on sexual fantasies of real americans tell me what you want based on what you have found out is that there's some common thread binding all the different together some kind of a universal that we all crave and sex is that right. so for this book i surveyed more than 4000 americans from all 50 states about their favorite sexual fantasies of all time as well as hundreds of people places and things that they might have ever fantasized about and what i found was that there is a lot of commonality in the things that people are fantasizing about so for example some of the common threads involve themes of novelty so doing something that is new and different for you human beings are are titillated by novelties when it comes to sex because we grow bored of sexual routines very easily and so our fantasies are often about breaking free of those routines and for example having sex in new positions or in different places and settings another big theme in our fanta