From personal observation in north American culture, it seems that women tend towards homosexuality/ bisexuality more than men.

Anybody that has ever seen an adult movie must have noticed that the vast majority of adult titles contain at least one scene where two or more women have some form of sex. Actually, if one judges solely by observing adult movies, one would get the impression that all human females are at least bisexual and very few men are bisexual or homosexual. Of course, I’m talking about adult movies that are targeted at heterosexual males (which make up the majority of adult titles for now).

Also, from personal observation of people that I’ve been in contact with, it seems that women tend to accept sexual contact with other women more easily than men accepting sexual contact with other men. In my personal circle of friends, I’ve seen quite a few times where women kiss each other on the lips. And I’m talking about women that are going out with guys. Yet, I’ve never seen two guys that are going out with women kiss each other on the lips. I’ve found it fairly easy so far to dare two women into kissing/fondling each other. I’ve never been able to get two men to come even close to doing that.

Why is that?

Is it because of the fundamental physical differences in male and female sexual practices? Or is it caused by the mental difference?

Being a heterosexual male, I cannot even try to imagine kissing another man on the lips, let alone actually do it.

Physically, when a woman has sex with another woman, it’s not that different from having sex with a man. Some activities will be missing, but no real foreign activities are introduced. When a woman is having sex with a man, the insertion of something into her body is a normal part of sex. So if a woman has sex with another woman, the insertion of fingers or toys is similar to having sex with a man.

But for a man to have sex with another man, a new completely foreign activity must be introduced to one of the participants. One of the men (normally) must accept the insertion of something into their body, which is not something that happens when having sex with a woman.

On the other hand, north American culture seems to be more accepting of female bisexuality than male bisexuality.

So, is it something physical, mental, or social that creates this difference between men and women’s acceptance of same sex contact?