According to this meta-analysis, gender differences in sexuality have shrunk over the past 20 years. Here are some of their results. A positive statistic indicates a male advantage:
Gender differences--Cohen's d
Heterosexual intercourse frequency .16
Number of sex partners .36
Age at first intercourse .20
Oral sex .06
Anal sex .09
Extramarital sex .33
Pornography use .63
Attitude toward premarital sex .17
Attitude toward extramarital sex .01
Attitude toward masturbation .02
Feelings of guilt -.19
Sexual satisfaction .17
Attitude toward homosexuality -.18
Same-sex sexuality -.05
Except for masturbation and pornography use, the differences now appear to be fairly small or even non-existent in some areas. Findings suggest that gender differences in sexuality can be shaped substantially by environmental factors. Women can be influenced to be more or less like men.
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