Several studies have suggested sexual differences in sexual fantasy (SF) frequency, incidence and content. In our study we focused on gender differences in the presence of evolutionary-relevant subjects that SF contain (e.g. intercourse with multiple opposite-sex partners, much younger partner, same-sex partner).
We also focused on desire to realize sexual behaviour the fantasy involves and on previous experience with realization of such activity in real life. For purpose of this study we have chosen eleven subjects frequently appearing in human SF that we find evolutionary relevant and gender specific.
The criteria for presence in our list of SF was to be frequent in population and also to have evolutionary benefits for each sex (e.g. we were expecting higher frequency of SF containing famous person among women, higher frequency of SF with virgin partner among man, asn.). We asked 208 students of Faculty of Humanities, Charles University (106 males/102 females, aged 22 years on average (min=18, max=34)) to fill in questionnaires including the checklist of preselected SF.
The task was to fill in frequency, desire to realize and experience with realization of sexual behaviour towards the subject represented by each SF. The results have fully supported our hypothesis.
Men were more likely to have following SF and also they desire to realize it more often: sexual intercourse with opposite-sex stranger (SF incidence χ2 = 6,07, p = 0,023; realization t = 3,32, p = 0.001), sex with multiple female partners (SF incidence χ2 = 18,62, p<0,001 ; realization t=3,88,p <0,001), sex with considerably younger female partner (SF incidence χ2 = 16,95, p< 0,001; realization t=2,46,p=0,015). On the other hand female participants were more likely to show higher incidence of SF and higher realization of sexual activities involving same-sex partners (SF incidence χ2 = 11,09, p= 0,001; realization t=-2,736, p=0,007). .