# Are the multiple penetrations that occur in sex biological or cultural? **URL:** \ **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:** 4
**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 29, 2015, 2:30am UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/61 "2015-03-29T02:30:45Z")
Has the OP said he’s a guy? ---
**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, 2:31am UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/62 "2015-03-29T02:31:25Z")
> [@Icarus](#): > > Please understand, Umbridge, that a vast majority of posters participating in the SDMB are Americans. Consequently, for many of us, our experiences with sex is that it is something that most late teens and adults do, and they do it mostly for pleasure. Either with one or more other people, or individually. Since in our experience, the mechanics are widely known at a fairly young age, when we encounter questions like the ones you are posing, it sounds so very alien to us. > > We are left very curious as to how someone could reach adulthood without picking up the fundamental information about what sex is, how it is done, why people do it, the pleasure aspects, assumptions about our parents having (at one time) active sex lives, etc. > > In addition, your questions have a very clinical / intellectualized / abstract tone. This is somewhat normal for a person with no firsthand experience, I suppose. But it still comes off as very alien. In our world, it is normal to be very curious about sex, which you seem to be, but there is an edge that suggests the curiosity is because you are writing a paper, rather than wanting to explore the subject as a participant. I have been a U.S. citizen for many years, which also means I could vote when I was 18 years old. In America, it’s perfectly normal to marry at 30 or even later. In other countries, the age of marriage may be considerably lower, and sex must be restricted within marriage. Now, take that foreign-born mentality into the United States, and you’d see why someone may choose not to marry in their teens and twenties. Teenagers have to go to high school and may not have enough resources or time to care for a child. Young adults (like myself) may choose to go to college and may not have enough resources or time to care for a child, unless they get married straight out of high school. I’d add that I’m even more atypical, because I am more of a reserved, quiet, thoughtful, and inquisitive person in real life. For instance, I _like_ attending monthly public lectures at my alma mater university library, and I like to experiment with computer programming. Plus, I do not drink alcohol, so I do not go to bars or pubs. I never drank alcohol before I turned 21, because it was illegal. When I turned 21, I tried beer, and the burning sensation was so uncomfortable that I spat it out. I also tried different types of wine at the supermarket, but they tasted too bitter, and I never got more than a few sips. I just wanted to make sure I get the concept right. The thrusting behavior seems natural in non-human species, but it seems so fake in the human species. So, I’ve always suspected that people just imitate what they see in the movies, but they take off their clothes, and discover that “it feels good” so they keep on doing it until they get babies. ---
**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 29, 2015, 2:34am UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/63 "2015-03-29T02:34:29Z")
> [@Skald\_the\_Rhymer](#): > > Please do NOT avail yourself of porn in an attempt to learn about sex, Umbridge. It’ll just distort your thinking. I don’t think thats truly possible in this case. ---
**Author:** ![Smeghead](https://avatars.discourse-cdn.com/v4/letter/s/f1d935/32.png) [@Smeghead](https://boards.straightdope.com/u/Smeghead)\ **Post date:** [March 29, 2015, 2:35am UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/64 "2015-03-29T02:35:35Z")
> [@Umbridge](#): > > I did not decry the rhythmic thrusting behavior. I was just wondering whether or not multiple penetrations/rhythmic thrusting is natural. Provide a meaningful definition of “natural”. ---
**Author:** ![kayaker](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kayaker/32/441_2.png) [@kayaker](https://boards.straightdope.com/u/kayaker)\ **Post date:** [March 29, 2015, 2:35am UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/65 "2015-03-29T02:35:46Z")
I remember when my son was 12 or 13 and we had a talk during a fishing trip. He taught me a few things. ---
**Author:** ![Ambivalid](https://avatars.discourse-cdn.com/v4/letter/a/a5b964/32.png) [@Ambivalid](https://boards.straightdope.com/u/Ambivalid)\ **Post date:** [March 29, 2015, 2:43am UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/66 "2015-03-29T02:43:04Z")
> [@Umbridge](#): > > I have been a U.S. citizen for many years, which also means I could vote when I was 18 years old. In America, it’s perfectly normal to marry at 30 or even later. In other countries, the age of marriage may be considerably lower, and sex must be restricted within marriage. Now, take that foreign-born mentality into the United States, and you’d see why someone may choose not to marry in their teens and twenties. Teenagers have to go to high school and may not have enough resources or time to care for a child. Young adults (like myself) may choose to go to college and may not have enough resources or time to care for a child, unless they get married straight out of high school. I’d add that I’m even more atypical, because I am more of a reserved, quiet, thoughtful, and inquisitive person in real life. For instance, I _like_ attending monthly public lectures at my alma mater university library, and I like to experiment with computer programming. Plus, I do not drink alcohol, so I do not go to bars or pubs. I never drank alcohol before I turned 21, because it was illegal. When I turned 21, I tried beer, and the burning sensation was so uncomfortable that I spat it out. I also tried different types of wine at the supermarket, but they tasted too bitter, and I never got more than a few sips. > > I just wanted to make sure I get the concept right. The thrusting behavior seems natural in non-human species, but it seems so fake in the human species. So, I’ve always suspected that people just imitate what they see in the movies, but they take off their clothes, and discover that “it feels good” so they keep on doing it until they get babies. Could you clear this up for me? Have you ever masturbated? ---
**Author:** ![pool](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/pool/32/4152_2.png) [@pool](https://boards.straightdope.com/u/pool)\ **Post date:** [March 29, 2015, 2:44am UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/67 "2015-03-29T02:44:11Z")
I don’t get how the OP thinks thrusting isn’t in nature, just watch dogs or horses go at it and they definitely thrust for a little while they don’t get off in one pump. ---
**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 29, 2015, 2:47am UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/68 "2015-03-29T02:47:14Z")
> [@Umbridge](#): > > I just wanted to make sure I get the concept right. The thrusting behavior seems natural in non-human species, but it seems so fake in the human species. So, I’ve always suspected that people just imitate what they see in the movies, but they take off their clothes, and discover that “it feels good” so they keep on doing it until they get babies. Why does it seem fake to you? In what context have you seen it? ---
**Author:** ![Ambivalid](https://avatars.discourse-cdn.com/v4/letter/a/a5b964/32.png) [@Ambivalid](https://boards.straightdope.com/u/Ambivalid)\ **Post date:** [March 29, 2015, 2:50am UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/69 "2015-03-29T02:50:17Z")
> [@Umbridge](#): > > 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. You think it would be revealing too much about your identity to tell us what country you were born in? Help me understand your thinking here, I am at a loss. How do you think this is so? ---
**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, 2:51am UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/70 "2015-03-29T02:51:04Z")
Wait a minute. I just realize that I have made the stupidest question ever. The main function of the multiple thrusts is to make sure that the semen travels to the female vagina, perhaps as a way of forcing the semen into the vagina. When you think about sex that way, the whole thing makes sense. Okay. I already have my answer now. ---
**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, 2:54am UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/71 "2015-03-29T02:54:58Z")
> [@iiandyiiii](#): > > Why does it seem fake to you? In what context have you seen it? [Complete Sex Guide](https://www.youtube.com/watch?v=bQLdF93rRzY). There is one scene in which a man slowly enters the woman. In many animal species in nature documentaries, copulation does not last a very long time, and male deer never kiss the female deer. ---
**Author:** ![Skald\_the\_Rhymer](https://avatars.discourse-cdn.com/v4/letter/s/ecccb3/32.png) [@Skald\_the\_Rhymer](https://boards.straightdope.com/u/Skald_the_Rhymer)\ **Post date:** [March 29, 2015, 2:58am UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/72 "2015-03-29T02:58:35Z")
> [@Ambivalid](#): > > Ok, I can _grasp_ the idea of a 24 year old guy still being a virgin. It’s unusual but it’s not something that I consider freakishly rare or anything. What I _can’t_ grasp is the idea of a 24 year old guy-a guy who is obviously interested in sex, as evidenced just by his threads here-that has never even masturbated before. > > If the OP had ever even masturbated before, he would already have the answer to his question posed in the OP. Why do you use multiple “hand jerks” when pleasing yourself? For the same reason “multiple penetrations” occur during PIV sex. > > Consider me dubious. I dunno. I lost my virginity in my mid teens, but I never masturbated until at least my early 20s. ---
**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 29, 2015, 3:03am UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/73 "2015-03-29T03:03:07Z")
> [@Umbridge](#): > > [Complete Sex Guide](https://www.youtube.com/watch?v=bQLdF93rRzY). There is one scene in which a man slowly enters the woman. In many animal species in nature documentaries, copulation does not last a very long time, and male deer never kiss the female deer. That’s not the only way penetration happens. Sometimes it’s slow, sometimes fast. Not sure what kissing has to do with your confusion, and some other primates (bonobos – relatives of Chimpanzees) kiss during intercourse. ---
**Author:** ![regginbrow](https://avatars.discourse-cdn.com/v4/letter/r/ba9def/32.png) [@regginbrow](https://boards.straightdope.com/u/regginbrow)\ **Post date:** [March 29, 2015, 3:17am UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/74 "2015-03-29T03:17:26Z")
I am fascinated by this thread. > [@Umbridge](#): > > Wait a minute. I just realize that I have made the stupidest question ever. The main function of the multiple thrusts is to make sure that the semen travels to the female vagina, perhaps as a way of forcing the semen into the vagina. When you think about sex that way, the whole thing makes sense. Okay. I already have my answer now. :dubious: I’m not really sure which is the wrongest part about this statement. It appears you don’t actually know which part of the female anatomy the ‘vagina’ actually entails, however. ---
**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 29, 2015, 3:21am UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/75 "2015-03-29T03:21:29Z")
> [@Umbridge](#): > > Wait a minute. I just realize that I have made the stupidest question ever. The main function of the multiple thrusts is to make sure that the semen travels to the female vagina, perhaps as a way of forcing the semen into the vagina. When you think about sex that way, the whole thing makes sense. Okay. I already have my answer now. while you may have had the stupidest question - you’ve definitely stumbled upon the stupidest answer to it. ---
**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 29, 2015, 3:28am UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/76 "2015-03-29T03:28:54Z")
> [@Umbridge](#): > > In other countries, the age of marriage may be considerably lower, and sex must be restricted within marriage. Not true. It’s simply a stereotype and an excuse. There’s a reason why people are so preoccupied with sex to restrict or control sex via laws and customs. The massive preoccupation would not exist if it didn’t happen or if they were successful at such control. Kids all around the world and throughout history have been having sex early and outside marriage for a long time. It’s (un)surprising how many full term “premature” babies have historically arrived within 6 months of a wedding. And in many countries, there’s often not a lot of privacy. Some portion of kids, even in America, have always caught their parents in the act. Others have heard about it from their friends. Locker room talk is a cliched but common rite of passage. > [@Umbridge](#): > > So, I’ve always suspected that people just imitate what they see in the movies, This is totally uncredible. As now repeatedly stated in this thread, thrusting is common across many, many, many species, not all of them mammalian. It’s simply not credible that an adult human of at least average intelligence and experiences would not have run across it at least once. I, for one, knew about it well before puberty. Stray dogs don’t really care who’s watching. > [@Umbridge](#): > > In many animal species in nature documentaries, copulation does not last a very long time, and male deer never kiss the female deer. So what? They still thrust repeatedly. The rapidity and duration of the act doesn’t take away from the fact it occurs in the first place. ---
**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 29, 2015, 3:36am UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/77 "2015-03-29T03:36:41Z")
Umbridge, it is very hard to believe someone could get to 24 and be this ignorant of basic anatomy. ---
**Author:** ![kayaker](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kayaker/32/441_2.png) [@kayaker](https://boards.straightdope.com/u/kayaker)\ **Post date:** [March 29, 2015, 3:47am UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/78 "2015-03-29T03:47:36Z")
Anyone see the movie Dogtooth? ---
**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, 3:55am UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/79 "2015-03-29T03:55:32Z")
> [@Great\_Antibob](#): > > And in many countries, there’s often not a lot of privacy. Some portion of kids, even in America, have always caught their parents in the act. Others have heard about it from their friends. Locker room talk is a cliched but common rite of passage. To be honest, I never heard anything in my childhood or adolescence while I was asleep. So, I assumed that my parents had a sexless marriage. I looked it up, and they do exist. I don’t have many friends, and of the few friends I have when I was in elementary school, we didn’t talk about sex at all. We were mostly playmates. I had gym before in middle and high school, but I don’t think I heard anything related to sex. I was also not an athlete, so that’s probably why I never experienced “locker room talk”. Out of all the high school students at my high school, there was only one girl that got pregnant. Well, at the time, I assumed that the high school students just didn’t have sex. There was one time when the school magazine published a sex-related article and included information about birth control. The school magazine had to change its name, and it never talked about sex again. I think the contraceptives part was extremely controversial, and that made me think that my classmates didn’t use contraceptives… So that made me think that they were sexually abstinent or something. > [@](#): > > This is totally uncredible. As now repeatedly stated in this thread, thrusting is common across many, many, many species, not all of them mammalian. It’s simply not credible that an adult human of at least average intelligence and experiences would not have run across it at least once. Like I said, I’ve now realized I made the most stupidest question ever. > [@](#): > > I, for one, knew about it well before puberty. Stray dogs don’t really care who’s watching. > > So what? They still thrust repeatedly. The rapidity and duration of the act doesn’t take away from the fact it occurs in the first place. I never saw a stray dog before. And the rapidity and duration made me think that humans could control the penetrations rather than allowing them to go as soon as the quadrupedal male gets on the female. ---
**Author:** ![wisernow](https://avatars.discourse-cdn.com/v4/letter/w/13edae/32.png) [@wisernow](https://boards.straightdope.com/u/wisernow)\ **Post date:** [March 29, 2015, 4:26am UTC](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222/80 "2015-03-29T04:26:36Z")
Follow these steps to find your answer - 1. Get horny so that you feel like having sex. 2. Get a partner who is horny and feels like having sex. 3. Ask your partner to insert penis and stay that way without making any movement of the hip, that in your parlance is **not** ‘repeated penetrations’. 4. Then ask your partner to do the ‘repeated penetrations’. 5. Compare the pleasure you get in the two situations and answer the question - 6. You will have found the answer to your query. [Previous page](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222.md?page=3) [Next page](https://boards.straightdope.com/t/are-the-multiple-penetrations-that-occur-in-sex-biological-or-cultural/716222.md?page=5)