Penis–Head

Our penises may come in all kinds of shapes and sizes, yet the basic design remains the same throughout all differences: our cocks appear as shafts crowned by a peculiar top, the glans or head (the whole penis is made of two different kinds of erectile tissue). This combination is unique and differs (overall in shape and size) very much from the penile design of even our closest living relatives (primates that is)! I personally adore the design of the human cock, particularly for its gorgeous head.*

So, only us human males feature such a distinctive mushroom-capped cock-head, which is connected to the shaft by the frenulum (the delicate tab of skin just beneath the meatus, as to be seen in the next couple of pics) on its underside. Probably the most significant design of the glans is the coronal ridge. The diameter of the „helmet“ where it meets the shaft is wider than the shaft itself. This results in the coronal ridge that runs around the circumference of the shaft. And here the question arises: Why is it like that? and What is that for?

According to evolutionary psychologist Gordon Gallup of the State University of New York at Albany, the human penis is literally an impressive “tool” [mind you in a different meaning of the term and how I used it in this blog]. Gallup’s research findings of studying the design of the human penis is a perfect example of “reverse-engineering”. This means that if we start with what we see today — the oddly shaped cock, with its bulbous head, its long, rigid shaft, and the coronal ridge — and work our way backward regarding how it came to look like that, the reverse-engineer is able to suggest a set of function-based hypotheses derived from evolutionary theory.

Now, it appears there’s a genuine adaptive reason that our cocks look the way they do. We must consider the evolution of our tools in relation to the human vagina. Magnetic imaging studies of heterosexual couples fucking reveal that the penis completely occupies the vaginal tract, and with full penetration does reach the woman’s cervix and lift her uterus. This combined with the fact that cum is expelled with great force, suggests that the male genitals are ment to release sperm into the uppermost portion of the vagina possible. Thus, in a theoretical paper published in the journal Evolutionary Psychology in 2004, Gallup and coauthor, Rebecca Burch, assume that,

“A longer penis would not only have been an advantage for leaving semen in a less accessible part of the vagina, but by filling and expanding the vagina it also would aid and abet the displacement of semen left by other males as a means of maximizing the likelihood of paternity.”

The “semen displacement theory” is the most intriguing part of Gallup’s research. Besides being a brilliant evolutionary theorist, he happens also to be a very gifted experimental researcher. In a series of studies published in a 2003 issue of the journal Evolution & Human Behavior, Gallup and a team of his students put the “semen displacement hypothesis” to the test using artificial genitalia. They even concocted several batches of realistic seminal fluid. Results from this study may not have “proved” the semen displacement hypothesis, but they definitely confirmed its principal points.

And how does the cum displacing work after all? Well, according to Gallup our cocks were sculpted in such a way that our tools would effectively displace the jizz of competitors from their partner’s vagina, a well-synchronized effect facilitated by the “upsuck” of thrusting during fucking. Specifically, the coronal ridge offers a special removal service by expunging strange cum. Gallup’s experiments showed, that the effect of thrusting would be to draw other men’s juices away from the cervix and back around the glans, thus scooping out the spunk deposited by a sexual rival.

After all, thanks to evolution for that we are equipped with such sophisticated organs making them the most beautiful and wondrous sexual entities throughout the animal kingdom. I love penis from head to bulb and crura respectively.

++++++++

The info of this post is largely based on a Scientific American article by Jesse Bering.

* By the way, according to a former poll in this blog most of the readers partissipating share my love! I asked: What part of the penis do you love/enjoy the most? Now 34% (41 votes of 120 total answers) chose: the glans/helmet! This marked a clear lead among the choices:

Reel Fiction (4)

This blog also features hot fiction (also look categories drop down menu) and a new story is way overdue. I got one for you which is fitting the actual subject matter and since it´s combined with a clip it runs as Reel Fiction.

It´s about a young woman who loves the male meatbag more than anything else and she tells us why. You need to know that she is sexually imprinted with scrotum. Sexual imprinting means, that our minds are very open for sexual input at certain critical periods during our first two decades of life. And whatever got into the sex-files of our brains at such times remains a deep part of our psyches for the rest of our lives! Read Larissa´s story:

The girl who loved scrotum

When I crave fruit, I think of figs. When I crave veggies, I think of avocado.

I´m Larissa. I am 27 years old and am totally hooked on guys balls, scrotum that is. I guess it´s all depending on a certain moment of true revelation. I must have been 8 when my aunt gave birth to her first son. Naturally I was curious about everything concerning my baby-cousin. When I watched my aunt changing the diapers (a general first for me) I sure noticed my cousins tiny penis and his comparatively big nutbag. Little did I know then what this was for, just that all boys had a penis and a pouch and girls didn´t. So I asked my aunt and she said, that inside his sack are couple glands which were important to make little cousin a man some day. I enjoyed watching auntie cleaning him there and liked to have touched him (there) myself, but never dared to ask. But I managed to attend to many diaper-changes.

When I was 11 or 12 my interest in boys grew. I mean less so in the real world (then), but I was curious about the male in general, puberty was driving me. And the internet gave easy access to find out more about the male and his genitals. One day I was over at my best friends place. Lucy’s parents were in the theater that evening and we decided to go find some information on the net. We were really excited. It didn´t take too long until we found the pages we were searching for. God, we discovered pages with loads of penis pics and had been in awe about the variety of the male private parts. Some pics were really shocking to us, because those penises were so huge!

Soon enough we encountered pics with spurting cocks. I was bit confused and asked Lucy if she knew what that was. She seemed to be well-informed. She said it was sperm and you need that to make babies. However she was surprised to see so much of that. We quickly agreed it´d be nice to see a man spurting his sperm. I began to speculate where that much sperm was coming from and Lucy wisely said: Didn´t you know that this is made in the nutbag? No, didn´t know then, but what Lucy said seemed logical and obvious.

We found a page with clips of men cumming. And there it happened to me, the moment of true revelation. After couple of blurry clips of men jerking off – one guy spurting not that much and another spraying his cum almost like piss – we stumbled upon a fine clip showing a guy in a black t-shirt with a fat cock and really big balls. The clip was in slow motion (what I only found out later) and showed him cumming big time while is big shaved scrotum was bouncing to the rhythm of his tender jacking. I was stunned in amazement and Lucy liked it as well. We watched it maybe six times in a row and while the re-runs I made up my mind that I wanted only lovers with such balls and the ability to cum like that to make sure for a good impregnation. As for his cock I cared less, because I was scared that a man with such a tool could hurt me.

Lucy saved that file and copied it onto a CD-ROM. Back home I checked out that clip once more right away, and for a long time I was watching it whenever privacy allowed me to. I still have it somewhere. Back then I began to dream about a boyfriend being equipped like the man in the scene. I saw me fondling, cupping, massaging, stroking these lovely heavy balls with all the cum inside that my boyfriend would eventually release, naturally as a result of my lovingly ball stroking. I dreamed myself catching his juices with my hands instead of wasting it away onto a t-shirt or into tissues. I knew exactly what I wanted. Sure enough the school of live had to teach me some lessons.

For one, that men are hairy down there. The minority is shaving or willing to do so! Secondly the balls of most guys are much smaller than the ones of the guy in that clip! I now know that the guy in that particular scene pretty much had it all: huge nuts, a shaven scrotum, a fat cock and a huge load. Definitely above average. Thirdly I learned that the scrotum is subject to change. Balls have a live of their own, which just makes me love ´em more. But a sack is tightening up (its skin is) the more a guy approaches his cumshot. Most men have elevated balls, if not submerged ones, when they finally shoot. Only with a minority the scrotum stays thin-skinned the whole time. However, this is what I like best. That clip definitely had me sexually imprinted, I can´t help it.

Luckily I am with a man perfect for me. He offers to me what I was dreaming about since that exciting night at Lucy’s. His balls are big and grow quite large when he is sexually aroused. He shaves, keeps his sack hairless. He has a really nice cock, slightly above average in length. And he is able to produce a big volume when we prepare for that (favorable food, extended period of arousal). And though I know now that semen is not produced neither stored in the balls, I just imagine it would be! I just love a big, tender and naked scrotum.

STORY CUMPLETE

The same viewing-procedures as for For a Closer Look apply.

The Scrotum – Home Of Your Balls

I promised to avoid anatomical detail, but at this point I need to summarize some basics. Here goes:

The scrotum is a pouch of skin containing the testicles. Each testicle and its spermatic cord (leading upward into the abdominal cavity) is nested in its own compartment within the sack. Part of the spermatic cords are the vas deferens – as we know thin tubes through which the sperm travel. The spermatic cord also contains blood vessels, nerves, and muscles.

In response to certain stimuli and/or temperature changes, these (cord-) muscles contract and pull the testicles closer to the abdomen. Generally, the subskin-muscles of the scrotum will contract as well by the same triggers. In a way the scrotum acts like a thermostat, trying to provide an even temperature for the continuous and optimal sperm-production and storage within the testicles. This temperature has to be slightly lower (at 34 degrees Celsius) than that of the rest of the body.

Although both testicles are of about the same size, the left one usually hangs a little lower and thus may give the appearance of being larger. The testicles serve a double function: a) they produce sperm, and b) they produce hormones which are secreted directly into the bloodstream.

The reason why the balls are drawn up close to the body (sometimes into the abdominal cavity) via a tight scrotum lies in the fact that our body temperature is increasing the chances for a successful insemination: sperm thrive at body temperature for 50 minutes to four hours, the average length of time it takes for them to journey through the female reproductive tract and to fertilize the egg. So just before ejaculation, when it’s adaptive for sperm to be highly mobile and hyperactive (from an evolutionary point of view), the scrotal muscles (cremaster and dartos) reflexively retract to provide a raised ambient temperature for sperm. Anytime else sperm are stored and produced most efficiently in the more breezy surroundings of the rather relaxed nut-bag.

The Anatomical Location of The Edge

We know what it takes to edge: control and relaxation. We know how edging feels like: the sweet sensations of almost shooting milk, on and on. Both of these statements indicate the two aspects necessary for edging: awareness of all structures of our reproductive biology and the mastering of climax control.

But where in our system do we have to place our awareness most of all? Which structure has to be in our focus to gain the control we need for edging (besides our masturbatory discipline)? This area would mark the location of The Edge. Answer is: it must be the place where our seminal secretions are accumulating prior to emission and ejaculation. Because as long as we are aware of the stand-by zone of our milk, it´s us who decides to let go or not.
Let´s have a look at our system to find out:

Here we see all the structures involved in producing and transporting the secretions that make up our milk. Most important are the glands which I introduced as Milkfactories (here and here in detail) earlier in my blog. Once you gain „control“ * over these glands (thru exercise, experience and learning), you open up a gate leading you into the realm of deep edging (a topic I will explore in my next post). It´s all happening in this compact area, where your milk waits to fill your urethra and leave your body. This would be the place you want to call The Edge:

Every edger has control and discipline, otherwise he couldn´t manage to masturbate in his favorite fashion. However, some men have that much awareness, as that they are able to sense subtle muscle contractions as well as fluid movement within their glands and connected tubes. Read what they have to say. Like a guy called Benders who years ago published a famous article containing a how-to about his ability:

With experience and exercise, I have raised the pressure (and pleasure) level required to trigger the ejaculation reflex response. I sense exactly how much more pressure can build before crossing the threshold to ejaculatory inevitability. My emissions orgasms are stronger and ultimately continuous without triggering ejaculation. My seminal vesicles harden [= contracting] right after I have nearly cum; hence they are almost constantly hard and discharging. My prostate swells without hardening, currently to about just half as large as during a full ejaculatory orgasm. Finally, my testes, epididymis and especially the spermatic cords radiate a distinct pleasure as they push sperm toward the ampullae. Each of these [internal] emissions increase the amount of fluid held in the ampullae and at the ejaculatory ducts, with an associated increase in pleasure and passion of sexual readiness.
The presence of sperm, ampullary gland, and seminal fluid in my ejaculatory ducts is evidenced by sensations I can produce after nearly cumming. Shortly after ceasing stimulation I can contract my bulbospongiosus muscle [BC] and thereby press on my prostate and feel the fluids being pushed back up into the ampullae and seminal vesicles. This feeling of fluid movement and fullness is very pleasurable. I can stop masturbating, and hours (days) later still feel the semen in my loins eager for release. My testes swell, feel full, and are slightly sensitive to jostling.

James, a reader of this blog, is confirming Benders ability (commenting here):

I can definitely do this. It is quite pleasurable and has the effect of widening the gap between 8.5 and 9.5 on the stimulation scale. That is really nice when I have edged for a long while and have been having continuous emission orgasms for a while already. [...]
The key to all of this is, of course, a keen awareness of the exact progression of the events leading up to orgasm. You must learn the anatomy of your sex organs, learn the progression of events, and then practice being very conscious of these sensations as they progress. Try edging and building up sort of slowly while saying to yourself things like ‘there´s my spermatic cords contracting’ or ‘that was my seminal vesicles hardening’. Really try to mentally pick apart what’s going on in your body. This does in itself improve your ability and adds another dimension to your masturbation. [...]

* What does control mean in anatomical terms? Well, your bodily functions are steered thru your nervous system using electrical energy. Two different kinds of nerves regulate functions: sympathetic and parasympathetic. Some functions/actions in you body run automatically (sympathetic nerves) and you can not assert will on them, like your heartbeat, seminal fluid production and the ejaculatory reflex. Other functions/actions are suggestible (parasympathetic nerves) like moving muscles, such as the BC, PC, sphincter muscles and others. Now, stimulation of the parasympathetic nerves (to trigger action) can be applied via tactile or psychic input. And here we are, edgers are totally in charge of this input!