Despite stereotypes, men and women actually fantasize about many of the same things, according to a 2014 study about sexual fantasies in the Journal of Sexual Medicine.
While the top three fantasies for each gender varied slightly, there are definitely a few areas of overlap: 82.3% of male respondents, for example, listed the fantasy "having sex in an unusual place," like the office or a public restroom, while 81.7% of women said the same.
Fantasies about oral sex were hands-down the most popular among men, and third-most popular among women.
There are other happy coincidences, too: 76.4% of men, for example, fantasize about masturbating their partner, while 71.4% of women want to be masturbated by their partner. That's symbiosis if we've ever heard it.