Not to mention that the semen is already in the vagina and the sperm are making their merry way, one hopes or prays not, depending, into the uterus, where, Umbrage, the penis does not go.
“Ejaculation” means an expulsion of sperm, so pregnancy cannot happen without ejaculation. “Orgasm” is the sensation that generally accompanies ejaculation. In theory ejaculation can happen without orgasm, but usually only a small amount of semen is emitted in such instances. Pregnancy can and does occur in such cases (in other words, you can get pregnant from “pre-cum”), but it usually doesn’t happen that way.
To be quite simply put… The answer would be both. It is cultural upon the basis that we are the culmination of all our past memories and experiences, interactions with others and their own, and so on… If you are taught to open a banana from the stem it’s how you open it. But humans mimic to learn and experience. Wild primates would open the banana from the bottom instead. We in turn have people that do both… (What monkey see monkey do). If you watch many species mate it’s done many different ways… However humans experiment in positions and technic while other species do not…
However biological as well. Spiecies are genetically hard wired for the purpose of propagation otherwise all would die out… The individual choice in action being the cultural, but the need to propagate being biological. The action of quick multiple rhythmic penitrations, could also be argued as part of the human brain that selects it for the purpose of instant gratification… Even though other technics actually increase gratification levels. The human brain also allows us to question and develop new methods of achieving our end goals…
If you where to look back and consider, most likely our underdeveloped evolutionary ancestors in either cultural or biological evolution. The act of mating would be most commonly be made by force for the purpose of dominance (still seen in many Stone Age tribes) or for the desire to pass on this genetic code, the male would require stimuli. During any resistance it would therefore cause this motion and the engaging male would continue the stimuli until achieving insemination. Thus biologically both anatomically, phycologicaly and culturally becoming an evolutionary trait… If you use words to seduce a woman it is only done because of the development and evolution of language by usage and communication… But all that would be another topic…
Well, there was that one time…
At band camp?
Many’s the starfished woman’s night of sex.
Plus, I (guy) was once so stoned that a when a girl touched my penis I ejaculated, I think. Orgasm and rushing begin to merge sometimes. /true story
It’s not an either-or question. Eating is instinctive, but it’s definitely under voluntary control, except possibly in extreme cases.
But, let me put it this way: once things get started, it takes a bit of willpower to STOP thrusting, before orgasm/ejaculation.
The natural/cultural question is often misleading, since we are cultural animals, and we don’t make sense outside a cultural setting, since at least a few million years anyway. But in this case there’s a fairly simple answer. In many cultures and in the not-too-distant past, many people had sex without ever seeing it done or hearing much about it (thanks to religious prudeness). I’d be willing to bet dollars to donuts that repeated thrusting was still involved, since (except when young and very horny) that’s what’s required to get the job done. The species hasn’t fizzled out.
Instinctive does not mean non-voluntary. It just means that you innately know it or that nobody has to teach you.
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But, let me put it this way: once things get started, it takes a bit of willpower to STOP thrusting, before orgasm/ejaculation.
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So, from the woman’s perspective, can the woman do anything to stop it? What if the thrusting behavior feels uncomfortable for the woman? Can the woman’s legs repel the man?
[QUOTE=Learjeff]
I’d be willing to bet dollars to donuts that repeated thrusting was still involved, since (except when young and very horny) that’s what’s required to get the job done. The species hasn’t fizzled out.
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Perhaps, all it matters is, do whatever it takes to fertilize the woman?
No one has to teach you. It feels good. People do it
Sometimes, if the woman has very strong leg muscles and if the man isn’t strong enough to resist it.
But more commonly, what happens when a person is feeling uncomfortable, he or she says something. Communication of one’s feelings is very common during sex.
I don’t understand this question.
So, if the man is on top of the woman, that means his body weight is pinning the woman down on the bed. Is the weight concentrated in one or a few locations, or is the weight spread out? Can a man and a woman have sex side-by-side? If they do, then wouldn’t one leg from the woman be crushed by the man’s weight? How long does sex take? How does one know when it is over and sleep can take over? Can people communicate/talk during an orgasm?
To some extent, yes.
It depends on the exact position they are in. There are dozens of specific ways two people can arrange their bodies in a man-on-top position, and all this depends on the shapes of the two people’s bodies and their relative sizes.
In the most basic missionary position, the man’s pelvis and hips press down on the woman’s pelvis and hips. If the couple positions themselves in different ways, the man could also use his thighs, chest, and hands on the woman’s body.
Yes. It’s a more difficult position than the basic three—(a) man on top, (b) woman on top, (c) man behind woman—but it’s possible, again, depending upon the two people’s specific shapes and relative sizes.
(1) The woman’s lower leg need not be under the man.
(2) Even if it is, it won’t necessarily be “crushed.”
I’m not going to go into any more detail on describing positions. There are hundreds of books available that show diagrams of sex positions. It seems to me you might benefit from some reading.
On average it takes a few minutes. However, it can theoretically last much longer, until the parties tire out or the man loses his erection or the woman’s lubrication dries up. Generally it ends long before any of these three happen.
Most commonly, it ends with the man’s orgasm and ejaculation, at which point continued penetration becomes uncomfortable for the man and he loses his erection. It might, however, end for other reasons.
Yes.
Oh, there are several positions available besides the missionary position (man on top).
The girl can be on top the man aka the Cowgirl or spooning,which is side by side.
Alternatively, there is doggy style where the women bends over and lets the man take her from behind (not to be confused with anal), which can be useful when there’s no bed available, but of cos can also be practiced in a bed.
How long it takes depends on how much fun it is, how much experience you got or how urgent it is, however the time frame is anything from 30 sec to 5-15min up to hours.
From a mans point of view, you know when its over, since the phallus is not erect anymore or after the man had his orgasm.
To determine the finish for a women is more difficult, since the women is the receptacle and designed differently and can usually perform the required actions until the male is done with his business, during which time the female can have several orgasm or none.
If the female had an orgasm is not necessary for procreation.
Sex is instinctive and does not have to be learned.
If you put a male and a female child on a desert island with no knowledge whatsoever of sex and they have no medical problems. I guarantee that the female will get pregnant soon after she becomes fertile.
It’s true. I saw it in this documentary.
Thank you for writing so dispassionately and directly! I really appreciate your responses here! 
Now, I have one more question.
Is there a sex position that involves the least amount of effort and experience?
Someday you may have sex and if you do I want you to try this:
Try to **NOT **rhythmically thrust.
Whoever is lying on his or her back can let the other person do all the work. So that takes the least effort, and it takes little experience to do nothing.
So, if you are a man, then lying on your back in a woman-on-top position can be done with no effort and no experience. In such a case, it would be necessary for the woman to expend effort and to apply her experience.
One would hope that the man would take the opportunity to do or try something,—in other words, use the opportunity to build experience—because it might not be very pleasurable for the woman to do all the work all the time.
I completely agree with a previous poster who suggested doing a bit of reading to clear up your various misconceptions. You seem to have some very basic misunderstandings about sex. I am reminded of an old boyfriend who had somehow reached adulthood absolutely convinced that if he achieved orgasm during intercourse it meant that his partner had also had an orgasm. (Hint: he was wrong.)
So you know, knowledge is good. But at the same time, might I respectfully suggest that you are overthinking things a tad? I mean, it’s one thing to memorize the Drivers’ Ed handbook and quite another to actually drive a car. In other words, nothing can substitute for actual experience in the driver’s seat. So to speak.
This book is one that is often highly recommended — http://www.amazon.com/The-Guide-Getting-It-On/dp/1885535333
Does the same thing apply if the sexually inexperienced person is the woman?