# Are the multiple penetrations that occur in sex biological or cultural?

**URL:** <https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222>\
**Category:** Factual Questions\
**Created:** [March 28, 2015, 5:40pm UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222 "2015-03-28T17:40:27Z")\
**Posts on this page:** 20\
**Page:** 2

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**Author:** ![Umbridge](https://avatars.discourse-cdn.com/v4/letter/u/b4bc9f/32.png) [@Umbridge](https://boards.straightdope.com/u/Umbridge)\
**Post date:** [March 28, 2015, 10:36pm UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/21 "2015-03-28T22:36:07Z")

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> [@Skald\_the\_Rhymer](#):
>
> I’m going to cut through the crap here. Umbridge, assuming you’re at all sincere, you’re clearly a virgin, and quite sheltered as well. Thus you’re missing something that is obvious to others: the rhythmic thrusting you so decry feels really good. That’s why we do it. Sex is fun, and the fact that it is is quite important. Mammals in general and humans in particular have evolved to feel pleasure in the act of coitus, thus making reproduction more likely. That is what we mean we say that the rhythmic thrusting is biological in origin.

I did not decry the rhythmic thrusting behavior. I was just wondering whether or not multiple penetrations/rhythmic thrusting is natural. Why can’t there be a single penetration or one single rhythmic thrust? What part of the nervous system controls this thrust? Is the thrust voluntary or autonomous?

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**Author:** ![dracoi](https://avatars.discourse-cdn.com/v4/letter/d/90db22/32.png) [@dracoi](https://boards.straightdope.com/u/dracoi)\
**Post date:** [March 28, 2015, 10:39pm UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/22 "2015-03-28T22:39:51Z")

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Did it ever occur to you to ask your parents about how relationships work?

Seriously, man. For you to be 24 and wondering this… forget about complicated sex questions at this point. You need to start by getting to know your own parents. The things you’ve wondered about them are on par with “I wonder if my parents use the bathroom?” or “I wonder if my parents are actually reptiles in disguise?”

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**Author:** ![marshmallow](https://avatars.discourse-cdn.com/v4/letter/m/df705f/32.png) [@marshmallow](https://boards.straightdope.com/u/marshmallow)\
**Post date:** [March 28, 2015, 10:58pm UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/23 "2015-03-28T22:58:22Z")

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I’m guessing the OP has never masturbated or has tried and found it about as exciting as rubbing their elbow. Maybe asexual?

Or never seen a dog hump anything.

There are some versions of tantric sex where the man just sticks it in and they sorta grind against each other. The aim is to make it last as long as possible, sometimes without letting the man finish. That is cultural though, not natural.

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**Author:** ![Mangetout](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mangetout/32/19_2.png) [@Mangetout](https://boards.straightdope.com/u/Mangetout)\
**Post date:** [March 28, 2015, 11:27pm UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/24 "2015-03-28T23:27:47Z")

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> [@Umbridge](#):
>
> I did not decry the rhythmic thrusting behavior. I was just wondering whether or not multiple penetrations/rhythmic thrusting is natural.

I think it must be, as it is seen in other mammals besides humans. Not fish-mammals or flowering plant type mammals, you understand, just the normal regular mammal-mammals.

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**Author:** ![simster](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/simster/32/1047_2.png) [@simster](https://boards.straightdope.com/u/simster)\
**Post date:** [March 28, 2015, 11:31pm UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/25 "2015-03-28T23:31:06Z")

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Is OP equatiing “rhythmic thrusting” and “multiple penetrations” ???

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**Author:** ![Great\_Antibob](https://avatars.discourse-cdn.com/v4/letter/g/e47c2d/32.png) [@Great\_Antibob](https://boards.straightdope.com/u/Great_Antibob)\
**Post date:** [March 28, 2015, 11:33pm UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/26 "2015-03-28T23:33:31Z")

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> [@Mangetout](#):
>
> I think it must be, as it is seen in other mammals besides humans. Not fish-mammals or flowering plant type mammals, you understand, just the normal regular mammal-mammals.

This is probably the part that’s confusing most people.

Simple observation of pets, farm animals, documentaries, stand up comics, etc shows that rhythmic thrusting during sex is friggin’ common in nature.

Frankly, it beggars belief that a human being can reach 24 years of age without knowing this.

> [@simster](#):
>
> Is OP equatiing “rhythmic thrusting” and “multiple penetrations” ???

Yes.

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**Author:** ![Qadgop\_the\_Mercotan](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/qadgop_the_mercotan/32/83_2.png) [@Qadgop\_the\_Mercotan](https://boards.straightdope.com/u/Qadgop_the_Mercotan)\
**Post date:** [March 28, 2015, 11:33pm UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/27 "2015-03-28T23:33:45Z")

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> [@simster](#):
>
> Is OP equatiing “rhythmic thrusting” and “multiple penetrations” ???

But it’s the pelvic thrust that really drives you insa-a-a-a-a-ane!

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**Author:** ![panache45](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/panache45/32/64_2.png) [@panache45](https://boards.straightdope.com/u/panache45)\
**Post date:** [March 28, 2015, 11:34pm UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/28 "2015-03-28T23:34:11Z")

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> [@Umbridge](#):
>
> I was just wondering whether or not multiple penetrations/rhythmic thrusting is natural. Why can’t there be a single penetration or one single rhythmic thrust?

You would have saved us all a lot of confusion if you’d expressed yourself this way from the start. I honestly had no idea that you’re equating “multiple penetrations” with “rhythmic thrusting.” To me, “multiple penetrations” means inserting the penis, removing it, then re-inserting it, into the same or different orifice.

Unless the male is super-horny, one “thrust” is rarely enough to cause climax and ejaculation. That’s why he continues repeatedly until he’s finished. This has nothing to do with culture.

I have trouble understanding the assumptions you’ve made about your parents’ sex life. And I have trouble believing that you’re 24 years old.

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**Author:** ![Umbridge](https://avatars.discourse-cdn.com/v4/letter/u/b4bc9f/32.png) [@Umbridge](https://boards.straightdope.com/u/Umbridge)\
**Post date:** [March 28, 2015, 11:38pm UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/29 "2015-03-28T23:38:39Z")

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> [@dracoi](#):
>
> Did it ever occur to you to ask your parents about how relationships work?
> 
> Seriously, man. For you to be 24 and wondering this… forget about complicated sex questions at this point. You need to start by getting to know your own parents. The things you’ve wondered about them are on par with “I wonder if my parents use the bathroom?” or “I wonder if my parents are actually reptiles in disguise?”

I asked my parents how they met before. My mother put up an advertisement and wrote specifications for a suitable marriage partner. Dozens of men showed up. With her parents’ guidance in the selection of a marriage partner, she picked my father, because he graduated from one of the best universities in the country, and worked as a post-doctorate. My mother’s side of the family was full of medical doctors. I was born three months after my maternal cousin’s birth, so I was probably conceived three months after my cousin’s conception. I am pretty sure that I was conceived in wedlock too, because my parents married one whole year before I was born. My mother dated other men prior to my father, but she found some sort of flaw in most of them, or her parents didn’t approve of the partner. My father, on the other hand, never had a date before he met my mother, probably because he was so busy concentrating on his studies and research. He told me that there was one research colleague that seemed to have a romantic interest in him, but he never noticed it or returned the affection. He only became aware of it, when another colleague probably told him.

I am not going to answer your second paragraph. That is just ridiculous. Of course, my parents use the bathroom, and of course, they are not reptiles.

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**Author:** ![tnetennba](https://avatars.discourse-cdn.com/v4/letter/t/7993a0/32.png) [@tnetennba](https://boards.straightdope.com/u/tnetennba)\
**Post date:** [March 28, 2015, 11:41pm UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/30 "2015-03-28T23:41:01Z")

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> [@Umbridge](#):
>
> I am pretty sure that I was conceived in wedlock too, but my parents married one whole year before I was born.

Then you can be 100% sure you were conceived in wedlock. Are you really that ignorant of basic human biology, even with all those doctors in you family?

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**Author:** ![Great\_Antibob](https://avatars.discourse-cdn.com/v4/letter/g/e47c2d/32.png) [@Great\_Antibob](https://boards.straightdope.com/u/Great_Antibob)\
**Post date:** [March 28, 2015, 11:42pm UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/31 "2015-03-28T23:42:39Z")

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> [@panache45](#):
>
> To me, “multiple penetrations” means inserting the penis, removing it, then re-inserting it, into the same or different orifice.

And to get a bit squicky, also potentially multiple orifices and multiple objects/organs to stick into said orifices at the same time.

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**Author:** ![iiandyiiii](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/iiandyiiii/32/7924_2.png) [@iiandyiiii](https://boards.straightdope.com/u/iiandyiiii)\
**Post date:** [March 28, 2015, 11:47pm UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/32 "2015-03-28T23:47:07Z")

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**Umbridge** , you are very curious about sex. This is entirely natural and healthy. There are numerous videos available on the internet which would show you in great detail much of the variety of human sexual behavior. Have you watched any of these videos? If not, why not try?

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**Author:** ![Dewey\_Finn](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dewey_finn/32/4222_2.png) [@Dewey\_Finn](https://boards.straightdope.com/u/Dewey_Finn)\
**Post date:** [March 28, 2015, 11:49pm UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/33 "2015-03-28T23:49:31Z")

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> [@Umbridge](#):
>
> I asked my parents how they met before. My mother put up an advertisement and wrote specifications for a suitable marriage partner. Dozens of men showed up. With her parents’ guidance in the selection of a marriage partner, she picked my father, because he graduated from one of the best universities in the country, and worked as a post-doctorate.

Which country are you referring to?

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**Author:** ![Umbridge](https://avatars.discourse-cdn.com/v4/letter/u/b4bc9f/32.png) [@Umbridge](https://boards.straightdope.com/u/Umbridge)\
**Post date:** [March 28, 2015, 11:53pm UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/34 "2015-03-28T23:53:51Z")

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> [@Dewey\_Finn](#):
>
> Which country are you referring to?

Didn’t I say in the original post that it was a _second-world_ country?

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**Author:** ![zoid](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/zoid/32/336_2.png) [@zoid](https://boards.straightdope.com/u/zoid)\
**Post date:** [March 28, 2015, 11:54pm UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/35 "2015-03-28T23:54:35Z")

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Sounds like Narnia.

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**Author:** ![Dewey\_Finn](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dewey_finn/32/4222_2.png) [@Dewey\_Finn](https://boards.straightdope.com/u/Dewey_Finn)\
**Post date:** [March 28, 2015, 11:56pm UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/36 "2015-03-28T23:56:54Z")

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> [@Umbridge](#):
>
> Didn’t I say in the original post that it was a _second-world_ country?

Which is? Albania? Armenia? Azerbaijan? Belarus?

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**Author:** ![tnetennba](https://avatars.discourse-cdn.com/v4/letter/t/7993a0/32.png) [@tnetennba](https://boards.straightdope.com/u/tnetennba)\
**Post date:** [March 28, 2015, 11:57pm UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/37 "2015-03-28T23:57:00Z")

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> [@Umbridge](#):
>
> Didn’t I say in the original post that it was a _second-world_ country?

How many people from “second-world countries” refer to them that way? :dubious:

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**Author:** ![Dewey\_Finn](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dewey_finn/32/4222_2.png) [@Dewey\_Finn](https://boards.straightdope.com/u/Dewey_Finn)\
**Post date:** [March 29, 2015, 12:01am UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/38 "2015-03-29T00:01:23Z")

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> [@Dewey\_Finn](#):
>
> > [@Umbridge](#):
> >
> > Didn’t I say in the original post that it was a _second-world_ country?
> 
> Which is? Albania? Armenia? Azerbaijan? Belarus?

I think I’ve got it; you’re from Alabama. That’s about as second world as you can get. Seriously, the reason I ask is so that I can better understand your worldview.

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**Author:** ![Umbridge](https://avatars.discourse-cdn.com/v4/letter/u/b4bc9f/32.png) [@Umbridge](https://boards.straightdope.com/u/Umbridge)\
**Post date:** [March 29, 2015, 12:08am UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/39 "2015-03-29T00:08:33Z")

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> [@Dewey\_Finn](#):
>
> I think I’ve got it; you’re from Alabama. That’s about as second world as you can get. Seriously, the reason I ask is so that I can better understand your worldview.

Googling “second-world” brings this definition:

“Second World” refers to the former communist-socialist, industrial states, (formerly the Eastern bloc, the territory and sphere of influence of the Union of Soviet Socialists Republic) today: Russia, Eastern Europe (e.g., Poland) and some of the Turk States (e.g., Kazakhstan) as well as China.

I am going to leave it there. I think I have revealed too much of myself.

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**Author:** ![Steken](https://avatars.discourse-cdn.com/v4/letter/s/e274bd/32.png) [@Steken](https://boards.straightdope.com/u/Steken)\
**Post date:** [March 29, 2015, 12:08am UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/40 "2015-03-29T00:08:49Z")

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I’m guessing either Pakistan, India or China.

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