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Female Sexual Fluidity and Evolution


DrGravitas
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An interesting article came up today on phys.org, summarizing a recent scientific paper in Biological Review (sadly pay-walled.) The paper proposes an evolutionary model that suggests that women may be sexually fluid - changing their sexual desires and identities from lesbian, to bisexual, to heterosexual, and back - to reduce conflict/tension in polygynous scenarios while maximizing reproductive success. It also proposes this may account for male arousal by lesbian sex.

While the article is sparse and the scientific paper is pay-walled there are some interesting tidbits to be found in the abstract, including "Analyses of the National Longitudinal Study of Adolescent Health (Add Health) confirm the theory's predictions that: (i) women (but not men) who experience increased levels of sexual fluidity have a larger number of children (suggesting that female sexual fluidity, if heritable, may be evolutionarily selected)". On the other hand, the author has some interesting articles in their history.

So what do you guys think?

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1 hour ago, DrGravitas said:

On the other hand, the author has some interesting articles in their history.

Really, though.

He had been doing decent research, but a few of his works have ended with him being ostracized by his peers and his being disallowed from publishing anything that isn't peer-reviewed. That's why it is behind a paywall.

Unless it gets leaked and somebody puts it right in my face, I am just going to pretend it doesn't exist.

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Eww paywall articles.

Anyways, there was a human sexuality study about most humans in general born bisexual. Social and environmental standards dictate your sexuality later. I will find it when I can.

The original study was done by Freud (take it with a grain), but other sexual psychologists have expanded on it. 

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17 hours ago, DrGravitas said:

An interesting article came up today on phys.org, summarizing a recent scientific paper in Biological Review (sadly pay-walled.) The paper proposes an evolutionary model that suggests that women may be sexually fluid - changing their sexual desires and identities from lesbian, to bisexual, to heterosexual, and back - to reduce conflict/tension in polygynous scenarios while maximizing reproductive success. It also proposes this may account for male arousal by lesbian sex.

While the article is sparse and the scientific paper is pay-walled there are some interesting tidbits to be found in the abstract, including "Analyses of the National Longitudinal Study of Adolescent Health (Add Health) confirm the theory's predictions that: (i) women (but not men) who experience increased levels of sexual fluidity have a larger number of children (suggesting that female sexual fluidity, if heritable, may be evolutionarily selected)". On the other hand, the author has some interesting articles in their history.

So what do you guys think?

Doesn't the existence of gay men who are not aroused by lesbian sex kinda cause a problem for that theory?

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23 minutes ago, #00Buck said:

Doesn't the existence of gay men who are not aroused by lesbian sex kinda cause a problem for that theory?

It's hard to say much about the proposed model without access to the article, but I would assume that, like most models, it is not intended to all encompassing. Certainly, the focus on women described in what we can read indicates that, at least. As with all of science, biology employs many different kinds of models to help describe the indescribably complex real world. Some models are very detailed, in-depth, and focused while others cover a breath of interactions but sacrifice detail. The abstract indicates to me that the model is largely the outcome of an analysis of statistical population data, so it's not going to cover every case but be more of a "best fit" kind of thing.

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2 hours ago, DrGravitas said:

It's hard to say much about the proposed model without access to the article, but I would assume that, like most models, it is not intended to all encompassing. Certainly, the focus on women described in what we can read indicates that, at least. As with all of science, biology employs many different kinds of models to help describe the indescribably complex real world. Some models are very detailed, in-depth, and focused while others cover a breath of interactions but sacrifice detail. The abstract indicates to me that the model is largely the outcome of an analysis of statistical population data, so it's not going to cover every case but be more of a "best fit" kind of thing.

I think homeboy's theory is lame that his ideas support the reason why straight men find lesbian porn arousing.

Straight men would also find the following things being done by hot naked women arousing:

Swimming, basketball, cleaning, car repair, origami, knitting, curling, gardening etc. 

This isn't a single thing hot naked women do that would possibly turn a straight man off. 

His theory is trash. Hot naked women doing anything = straight man boner. 

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One of the problems with the idea that men are attracted to lesbian behaviors as an evolutionary thing is that women do the same thing to gay men.
So unless we have also had a societal history of men pairing up in harems and such owned by women, this point is largely irrelevant.

People tend to want more of what they're already attracted to. This is just human nature.

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  • 3 weeks later...

Oxford institution login, paid scientific article get!

I am surprised that female homosexuality appears to be so different to male homosexuality.

I am wondering whether female sexuality could be fluid, compared to male sexuality, because men who are incentivised by a strong sex drive are more likely to be successful philanderers. Women can't be successful philanderers because they have to invest more resources to produce children. I am wondering whether the selection in favour of a strong and distinct sex drive in males, in comparison to women, might predispose men to obligate homosexuality, in which case homosexuality would be a maladaptive 'piggy back' effect. 

The authors discuss the possibility of homosexuality 'piggy backing' by some different mechanisms, too.

I am also wondering whether, because surveys about sexual orientation were self-reported, the results could just be the result of different social attitudes which apply to men and women.

 

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