Damnit Darwin!

[B_BigBentTree]

I've have a huge amount of education in biology over my schooling career, and I've come to learn that nearly everything naturally occurring has a evolutionary explanation.

However, I cannot for the life of me understand why accidentally hitting a girls cervix is soooo painful. The pleasure involved in sex is obvious in it's advantage to promote reproduction, so why does the whole canal feel good except for the end?

I have a very stoic gf who rarely reacts to any kind of pain (kind of hot), but she will yelp like an injured puppy if I get too rambunctious during sex. So I have a couple questions.

1st, anybody understand the biological basis for this huge amount of nociceptors active in the cervix?

2nd, Pretty much every cervix I've come across (no pun intended) doesn't like to be touched. Are there any women that it doesn't bother? Is there a vast majority opinion?

3rd, I'm big, but I know there are guys are here that are longer, how do I keep from doing this? I've noticed the lower I keep her hips (vagina closer to horizontal) the less often it happens, but none would still be better. I'm sure if I didn't go all the way in it would help too, but everyone knows how the heat of the moment works.

Anyways, thank you in advance to anyone that

 

[invisibleman]

I've have a huge amount of education in biology over my schooling career, and I've come to learn that nearly everything naturally occurring has a evolutionary explanation.

However, I cannot for the life of me understand why accidentally hitting a girls cervix is soooo painful. The pleasure involved in sex is obvious in it's advantage to promote reproduction, so why does the whole canal feel good except for the end?

I have a very stoic gf who rarely reacts to any kind of pain (kind of hot), but she will yelp like an injured puppy if I get too rambunctious during sex. So I have a couple questions.

1st, anybody understand the biological basis for this huge amount of nociceptors active in the cervix?

2nd, Pretty much every cervix I've come across (no pun intended) doesn't like to be touched. Are there any women that it doesn't bother? Is there a vast majority opinion?

3rd, I'm big, but I know there are guys are here that are longer, how do I keep from doing this? I've noticed the lower I keep her hips (vagina closer to horizontal) the less often it happens, but none would still be better. I'm sure if I didn't go all the way in it would help too, but everyone knows how the heat of the moment works.

Anyways, thank you in advance to anyone that

I think that if a woman roughhoused your testicles. She could say the same thing.

"Why does the cock feel good but when I put the balls in too...He winces."

I would think that the uterus would be a sensitive body part. Women protect their lower torso (the ovaries and the uterus are in that area) from blows. Men protect the nuts like squirrels...:biggrin1:

 

[Riven650]

I think that if a woman roughhoused your testicles. She could say the same thing.

"Why does the cock feel good but when I put the balls in too...He winces."

I would think that the uterus would be a sensitive body part. Women protect their lower torso (the ovaries and the uterus are in that area) from blows. Men protect the nuts like squirrels...:biggrin1:

Invisibleman made a good answer. I'd suggest that you look at your biology books again. You are not hitting yr gf's cervix when she experiences pain. I know that's what people call it, but it is not 'hitting the cervix'. Your cock (unless it is very short) glides effortlessly passed the cervix and pushes against the inner end of the vagina (which is called the 'vestiblule' I think). Now, sometimes, and in some entry positions, your cock head might flick her cervix as it goes past, but that shouldn't be painful. If you have a long cock, or one that is a bit long for her, then you might give her internal organs a good bump now and again if you bash it in real hard and fast, and as invisibleman points out, that can give her a nasty jolt. It's also possible that she's sensitive in there because she has a little kidney infection, or something going on with her uterus or an overy, so it might be something she should report to her doctor. Women have feelings, and they're as tender inside as you and me, and they wouldn't be (IMHO) anything like as much fun to go to bed with if they were as tougher than us guys.

 

[B_BigBentTree]

Trust me I've spent plenty of time looking over anatomy, and it's actually posterior os (at least that's what my medical school taught :wink: )

A peritoneal infection of any kind that was ongoing for the 14 months we've been together would have manifested in other ways by now.

Like I said, the more vertical her canal during sex, the more likely I am to cause pain. Additionally, because the uterus sits anterior to the proximal vagina (unless shes in labor), I can understand why putting her legs up in the air does more to line me up to poke her cervix.

She's also a little girl (5'3 ~105lbs) and I'm 6'4". I'm not too rough with her, she asks "Harder" frequently during sex, right up until I hit that blasted biological corridor.

 

[Maia]

It is not painful for me, and I have often wondered what is different about me that makes it so. It hurts my husband's glans, but does not hurt me. I am 5'1 or 5'2 and my husband is bit more than 6'.
Aside from that, I am no biologist but there seems to be a number of things that don't really make sense from a evolutionary standpoint. Or at least seem like they could have evolved to something more convenient, hehe. Men go bald from testosterone, but that doesn't seem helpful. PMS doesn't seem helpful at all, specially since we don't want to get murdered by our cave men:wink:

 

[Riven650]

I guess maybe your cock is a bit long for her then. Maybe your penis is evolving too fast ;o) I wonder what Darwin would have said about this? I guess there have to be anomalies - guys with big cocks; girls with small pussies. This is what LPSG is all about really, and evolution, of course (though I'm surprise the creationists haven't jumped on this thread yet - still asleep hopefully). Natural selection will sort it out in the long run, but it doesn't help you and your girl in the short term. I guess there's nothing for it but to go easy on her.

 

[Enid]

Just as an interesting aside: testosterone alone does not cause baldness. While artificially increased testosterone levels may hurry the natural progression of a pre-existing condition, and women with predisposition exposed to high levels of testosterone may begin balding, merely raising levels is not enough. The sufferer must have a genetic predisposition to baldness.

Hormone Facts

 

[jimmenycricket]

What I want to know is - and this goes to raven - Is that your cock in your profile and if it is, was that an accident and if it wasn't, what the fuck were you thinking????

 

[Riven650]

What I want to know is - and this goes to raven - Is that your cock in your profile and if it is, was that an accident and if it wasn't, what the fuck were you thinking????

No need to be rude.

 

[B_Morning_Glory]

i know for years i had painful sex with hubby. but not no more had to have a hysterectomy done 2 yrs ago. he was hitting my cervix and my uterus was bigger than normal and my ovary was damaged was bleeding when the did it. she told my hubby i was lucky they did this or i could have died. month before they did it the Dr. examined me and she stuck the larger tool in they use to open the woman up. she said yeah he is hitting it. LOL but the damage was down she said when you have bigger babies my first son was 9 lbs 7 ounces and 21 1/2 inches long, second son was 10 lbs 20 1/2 inches long.

 

[D_Fiona_Farvel]

I think that if a woman roughhoused your testicles. She could say the same thing.

"Why does the cock feel good but when I put the balls in too...He winces."

I would think that the uterus would be a sensitive body part. Women protect their lower torso (the ovaries and the uterus are in that area) from blows. Men protect the nuts like squirrels...:biggrin1:

"roughhoused your testicles.":biggrin1:
Heyyy, some cbt guys are into that, and I have been known to slap a few during sexual play. :smile:

 

[Maia]

Just as an interesting aside: testosterone alone does not cause baldness. While artificially increased testosterone levels may hurry the natural progression of a pre-existing condition, and women with predisposition exposed to high levels of testosterone may begin balding, merely raising levels is not enough. The sufferer must have a genetic predisposition to baldness.

Hormone Facts

Thanks, though I figured that because not all men are bald :biggrin1:
Not all women have PMS either, so I know it is a combination of things. Diet and exercise influence both things as well, because they also influence the endocrine system. I just don't see how natural selection or evolution left us with these seemingly harmful traits :frown1:

 

[Phil Ayesho]

women's internal organs are not fixed in place like constellations... They are attached to various other structures by ligaments and tissues...

As you change positions the shape of her canal and relative position of her cervix changes.

In some positions you are sliding past her cervix which, in that position, is anterior; in other positions the posterior wall is pulled and the anterior wall compressed, allowing the cervix to essentially become distal.
Also- some positions limit penetration more than others.

While the vaginal wall is elastic, the cervix is not nearly so- its a muscular sphincter.
It is attached to other structures... when a long dick hits the cervix, it is not "touching" it- it is DISPLACING it... moving it my an inch or more in relation to its attachment to other parts. When you have a boner, try forcefully folding your cock in half to get an idea of how displacement can make an organ that normally doesn't hurt, hurt like hell.


As to why evolution would not make a woman's cervix immune to being poked... evolution does not adapt to the extreme, it adapts to the mean.

MOST men's dicks do not penetrate enough to push the Cervix significantly out of place.

Consider that men with unusually large disks might be fun for a thrill, but the discomfort makes them not that much fun to stick with long term for most women.

This would act as a selection pressure in favor of men with NORMAL sized dicks.

The fact that having a large dick does not IMPAIR reproductive potential, outside of preference, is why there still are a small percentage of really large dicks... but their long term average reproductive success is limited to that subset of women who are willing to tolerate the discomfort, or who happen to have unusually roomy or deep vaginas.


Evolution does not adapt toward what is POSSIBLE... it adapts toward what is successful.
More men have shorter dicks and knock women up without difficulty.

If women overwhelmingly preferred enormous dicks, that would have an effect.

Most women seem to care less... while they may be as fascinated with a big dick as men are with big boobs, women seldom make long term mating choices based upon male anatomy.

A big dick don't make you a better provider, father, or companion. A big dick doesn't make her feel any more secure.


THose are the issues that drive female mate selection in humans.

 

[Riven650]

Good answer Phil Ayesho.

 

[Not_Punny]

All I know is that some men are a bit long, and whatever they're hitting, it DOES hurt. And sometimes I do yelp with pain.

I am not an expert, but the Kama Sutra says that there are four sizes of genitalia (dog, horse, elephant and one other I forgot) -- and people should mate with those who share the same size.

Easier said than done.

:wink:

 

[Knight Attrition]

My woman likes being bottomed out, thats when she comes the hardest.

 

[whatireallywant]

All I know is that some men are a bit long, and whatever they're hitting, it DOES hurt. And sometimes I do yelp with pain.

I am not an expert, but the Kama Sutra says that there are four sizes of genitalia (dog, horse, elephant and one other I forgot) -- and people should mate with those who share the same size.

Easier said than done.

:wink:

I've become really interested in that part of the Kama Sutra. I think it's easiest for average men to find average women and vice versa. It's those of us who are outside of that average that have a more difficult time.

I know that myself I have an unusual build, I guess. I'm tight (one guy said I was TOO tight!), but have good elasticity and have been with girthy guys without too much of a problem (except for the one who didn't arouse me). But I'm rather deep and have never had a problem with the kind of thing described here. One guy was long enough to hit an area that no one else had been able to, I guess maybe that was bottoming out? I really liked it and crave it now, but he was unusually long and I'm not sure I'll ever find anyone that large again.

 

[B_BigBentTree]

I've become really interested in that part of the Kama Sutra. I think it's easiest for average men to find average women and vice versa. It's those of us who are outside of that average that have a more difficult time.

I know that myself I have an unusual build, I guess. I'm tight (one guy said I was TOO tight!), but have good elasticity and have been with girthy guys without too much of a problem (except for the one who didn't arouse me). But I'm rather deep and have never had a problem with the kind of thing described here. One guy was long enough to hit an area that no one else had been able to, I guess maybe that was bottoming out? I really liked it and crave it now, but he was unusually long and I'm not sure I'll ever find anyone that large again.

How long was he?

 

[Phil Ayesho]

I am not an expert, but the Kama Sutra says that there are four sizes of genitalia (dog, horse, elephant and one other I forgot) -- and people should mate with those who share the same size.

Easier said than done.

:wink:

well- seems like drawing to an outside straight so the fourth must either be Hamster... or Sperm Whale......

 

[CaptainChaos]

Only a select few of you actually understand evolution. I think Phil had a good response.

The avg./mean of the population typically will influence the direction of certain adaptations. (Also, do we really think our early male ancestors really cared about the women's pleasure levels during sex? Some men now dont care....)

pstestosterone does play a significant role in baldness)