University of Texas psychologists Kristina Durante and Norman Li found that women with high concentrations of the hormone oestradiol were likelier to flirt, kiss and have a serious affair outside an established relationship.
Women with higher oestradiol levels 'may have fewer reasons to be committed to any particular partner if higher quality potential mates are available'
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This is quite interesting...having been with sexy women I can attest to this. I find that most sexy ladies enjoy the attention of other luring men, and sometimes end-up cheating.
Is it safe to assume that men in happy and stable relationships aren't with sexy women, especially the married men?