Experts believe that women are more sexually fluid than men, meaning they’re less likely to associate with a particular orientation. Psychologist Dr Satoshi Kanazawa believes that evolution has led to women becoming open to intimacy with both genders. He claims that sexual fluidity is a means of “reducing conflict and tension among co-wives in polygynous marriages”.

The study, published in Biological Reviews, reveals that there are differences in male and female sexuality. Dr Kanazawa, from the London School of Economics and Political Science, explained: “The theory suggests that women may not have sexual orientations in the same sense as men do. READ MORE