Kamasutra in Practice: The Use of Sexual Positions in the Czech Population and Their Association With Female Coital Orgasm Potential. Krejčová Lucie,Kuba Radim,Flegr Jaroslav,Klapilová Kateřina Sexual medicine INTRODUCTION:A limited number of scientific studies explore the frequency with which various sexual positions are used in human populations and the potential of particular sexual position to facilitate female coital orgasm. AIM:The aim of this study was to provide data about the prevalence and frequency of various sexual positions, their rated pleasurability, and their association with female coital orgasm consistency (COC). METHODS:A sample of Czech heterosexual population (11,225 men/9,813 women) were presented with a list of 13 sexual positions in black-and-white silhouettes. For each position, they indicated frequency and pleasurability. COC was assessed as the proportion of penile-vaginal intercourse with a current partner which led to orgasm. MAIN OUTCOME MEASURE:Participants reported the frequency of use of sexual positions and rated their pleasurability. Using ordinal logistic regression, association between the COC and frequency of use of coital positions was tested. RESULTS:In both men and women, the most commonly used sexual positions were face to face/male above, face to face/female above, and kneeling/rear entry. Nonetheless, there emerged some gender differences in the rating of pleasurability of various positions (all P < .001). We found that a higher proportion of female coital orgasms are positively associated with the frequency of use of face to face/female above (odds ratio [OR] = 1.005, P < .001) and sitting/face-to-face positions (OR = 1.003, P < .001) and negatively associated with the frequency of kneeling/rear entry position (OR = 0.996, P < .001). CONCLUSIONS:Our findings suggest that there are no gender differences in the frequency of use of sexual positions, but their rated pleasurability differs between men and women, and higher frequency of use of face-to-face positions with female above increases the likelihood of achieving coital orgasm during penile-vaginal intercourse. Most results, however, were of small effect sizes, and more research is needed to further explore this issue. Krejčová L, Kuba R, Flegr J, et al. Kamasutra in Practice: The Use of Sexual Positions in the Czech Population and Their Association With Female Coital Orgasm Potential. Sex Med 2020;8:767-776. 10.1016/j.esxm.2020.07.003