Researchers at the Université du Québec and the Philippe-Pinel Institute of Montreal recently conducted a study on sexual fantasies [2]. Conducting interviews with more than 1,500 adults, researchers compared the commonality (or rarity) of a wide range of sexual fantasies. Results showed that, for a large number of people, sexual fantasies tend to fall into very similar categories: sex in a certain place, sex with a certain person (who isn't their primary partner), dom/sub scenarios, fetishization of body parts and objects, and voyeurism.

Christian Joyal, the paper's lead author, hopes the research will "start a debate where we can talk about no longer stigmatizing people."

You can find the study here [2]. See the data at a glance [3] over at Business Insider. And read an official statement released by the study's researchers here [4].