Chapter 23 Scene 21 Sex feast orgy

The girl only had a bikini swimsuit and a sheer skirt around her waist, but she still felt very hot.The girl kept fanning her face with her hands.The young man who sat with her in the back of the car watched her movements.The man nodded with a smile on his face, because he took the girl's actions as a tacit approval for himself.The girl gave him a smile back, expecting in her heart, if only this man could understand herself better. Under the clear blue sky, the mountain road winds its way to the foot of the mountain.On the left side of the road is the vast ocean, and on the right side are steep mountains.The girl said something loudly to the two men sitting in the driver's seat and the front seat. She stood up and poked her head and shoulders out of the sunroof.It was very hot outside the car, but the body of the car passed through the air, bringing a gust of cool wind to blow on her body.Not far ahead, another car of the same type was about to turn, and there were three other people traveling with them in the car.The only woman among them was a few years older than the girl, and she was also standing in the car.The girl wanted to greet the woman, but her voice was blown away by the wind.

Soon, both cars stopped in the shade of the roadside trees.As soon as the engine noise stopped, cicadas rang out all around. Seven men and women packed their backpacks, parasols, beach mats and towels and lazily made their way along the path lined with trees on both sides.The 6 people in this group are partners who traveled together in the European continent. They set off a few weeks ago, and they all hope to travel as much as possible with the least cost.They arrived at this seaside last week. During the day they lingered on the deserted beach, and at night they hung out with local residents in beach bars while enjoying cheap alcohol and LSD.Two days ago, also on a carnival night, they met a strange young man, and now this stranger has become one of them.

The group walked for a few minutes to a high point on a cliff overlooking the beach and sea.Everyone stopped at this moment and admired the surrounding scenery.The young girl put one arm around the woman's waist and the other arm around the waist of the new stranger.The girl suddenly shouted excitedly. She kissed the woman first, and then kissed the strange man, and then started to run forward. While running, she kept urging her companions to run with her.A group of people finally came to the edge of the cliff. There is a long and winding path extending to the bottom of the cliff. This is a mountain road with a steep slope that will make tourists feel scared.They were lucky, though.Because someone showed them the way: the strange man grew up there.He usually travels all over the world, but every summer he returns to this one of his favorite beaches.

The mountain road is very narrow.The girl who played the vanguard never noticed that there were four men following closely behind her.Until at a corner, she almost collided with them.The four men greeted her, but because the girl was worried that she would fall off the cliff, she only cared about the mountain road under her feet, and didn't notice that the four men showed excessive interest in her and her companions.In some respects, these four people later affected the girl's entire life, which was beyond her expectation. However, even if she could have predicted this at the time, she probably wouldn't care.The girl was overjoyed by the sights around her, and by the anticipation of the afternoon, and she felt extraordinarily high.

The girl ran to the beach first, took off her sandals, crossed the beach, and ran to the water's edge. Her companions followed closely behind her and joined the ranks of playing in the water.The group of young people soaked their feet in the water and played for a while, then headed by their new local partners, they continued on to the next destination.They walked down the sparsely populated beach, and a pile of rocks towering above the sea jumped into view.As they got closer, they finally saw the words "Nude Only" scrawled in white paint on top of the rock. Together, six young men and their new guide friend climbed over the pile of rocks to the sandy beach in a small bay.Two naked women were lying under a parasol, and their naked children were playing beach ball in the nearby sand.On the sea not far from the shore, a small yacht full of tourists was slowly gliding past.There is a small cave above the beach, and an old man is sitting on a folding chair at the entrance of the cave.He was not wearing anything except a straw hat on his head.He held a cane in one hand while resting the other on his genitals.The old man was looking intently at the two naked women.

The group of young men climbed several more rocky hills in succession, crossed two small deserted beaches, and finally came to a third, more deserted beach.Because there is a high cliff hanging in the air above, no one can see the bottom from above, and because of the curved rocks on the side near the sea, it is impossible to see this place even from yachts on the sea.A group of people hurriedly threw down their towels and backpacks, and quickly took off the clothes they didn't wear much.The young man, who grew up locally, has become accustomed to nudity and is excited about the opportunity to bring new friends to the nudist beach.The group of youngsters seem to have picked up their new friend's relaxed attitude toward nudity, and they're clearly no strangers to each other's bodies.In fact, there was something this newcomer didn't know: During the group trip, the two women sometimes had sex with each other and other men separately.

After everyone took off their clothes, they immediately jumped into the water.The young girl got into a fight with two men, climbed on their backs, poured water on them and grabbed their penises with her hands.The two men retaliated by pushing her into the water, and the two of them swam violently out to sea.The girl swam after her, but she immediately turned around and swam back to the beach. Soon, the group finally swam back to the beach one by one.They spread out naked in the sun, passing each other a bottle of wine to share, and then they took turns sharing the first joint of the afternoon.The group rarely talked to each other, enjoying the blissful feeling of drugs while immersed in a relaxed state.The young girl is lying with the older woman, her head resting on the woman's belly.They drank wine and smoked marijuana together, and talked a few words from time to time, and gently touched each other's body with their hands.

The two women lay together like this for about an hour. Sometimes they talked for a while, and sometimes they fell into a state of half asleep and half awake.After a while, the young girl could no longer sleep.She looked around and saw that several other men were sleeping.The girl sat up, stretched herself, and touched the older woman quietly, motioning her to look at the strange man beside them.He was sleeping soundly, his hands and feet twitching slightly.Likewise, his erect cock was throbbing slightly.The girl whispered something into her companion's ear.They all smiled, with some expectation on their faces, and then they crawled to the side of the strange man on hands and feet.

The girl looks on.The older woman knelt beside the man, then bent down to kiss him on the lips.The man trembled.The girl then went to kiss his cock, and the man shuddered again.The two women proceeded to kiss the man's entire body while also repeatedly stroking his entire body - except for one part.And that part has been getting harder and harder.Within a few minutes, the young girl was already straddling the man's penis. She gently rubbed her hands on the man's body, and at the same time rubbed her pussy lips against the man's penis. At this time, the other four men woke up.They pretended indifference at first.While watching the antics of the two women, the men took turns drinking wine and smoking joints, all the while joking about the strange man's reaction.But in the end, their erect penises finally expressed their true thoughts.

The girl is still sitting on her prey, and the fuck is finally going on.The girl is not unfamiliar with this position, her body seems to be nailed to the man's erect penis, repeating the up and down movements slowly and focusedly.Her girlfriend - the older woman - now bent even lower to lick the man's nipple while placing one of her own tits on the man's face.The woman's movements have her hips lifted into the air, as if she is showing them off to the man sitting behind her.The sitting man threw away the cigarette in his hand, as if he couldn't bear it anymore, he walked quickly to the woman.The man only spends a minute or two of foreplay, and then immediately penetrates the woman from behind.The remaining three men watched for a while, then all stepped forward, waiting for their turn to go into battle.

The two women are positioned just so that they face each other and can see each other.If they bend down a little more, they can kiss each other.But they didn't.Two women each look into each other's eyes during their own intercourse, sharing each other's growing excitement.Just as the girl was about to cum, the young stranger ejaculated inside her and his penis immediately shrank and shrank.The girl felt a pang of disappointment. Still aroused, the girl moved away from the first man and immediately straddled the other man who lay beside him.The second the man starts to pump his penis back and forth, the girl reaches her climax.The man continued to twitch back and forth, but the girl had already reached climax, and she didn't want to cooperate anymore, and the man's movements began to look very clumsy.He shook his body desperately, and after a long time, he realized that no matter how hard he tried, he couldn't ejaculate after all.The third man who was waiting beside him not only didn't understand him, but even complained that he took up too much time.What's more, the third man put his hands around the girl's waist and reached out to her ribs, making her laugh non-stop.The second man struggled to concentrate, jerking back and forth until he reached the point where he was about to ejaculate.Unexpectedly, at this critical moment, he felt the girl push him slightly, and his penis actually slipped out of the girl's vagina.The girl couldn't stop laughing, she lay on her back on the beach, and the third man immediately lay on top of her. He was a little offended that the second man had been teased.Because he worked hard for a long time, but finally ended up shooting semen on his belly.The girl was still laughing, and the man who had ruined the other person's good deeds now had his cock inside the girl, and he was having a long, gentle fuck with her.The second man saw all this, and he felt even more irritable.He wanted to spoil their good deed and take revenge on the third man.But at this time, they were facing each other, so it was not so easy to tease them, not to mention that the girl was wrapping her legs around the man's body. The third man had sex with the girl for up to 10 minutes, and he slowly came to orgasm.The girl stopped laughing, and she felt her consciousness hazy.She vaguely remembered the second man trying to figure out how to fuck them, and that the older woman was still on all fours, still having sex with the same man.The only man who hadn't had his turn yet seemed very impatient and wanted to tell the third man to come down quickly.But a third man refused his request, claiming he wasn't done yet.After saying this, the third man raised his voice and finally finished ejaculating inside the girl.A fourth man, frustrated, walked past the older woman's pair at this moment, and immediately lay down on the girl's body.He pulled the girl's legs apart, and the girl struggled a little at this time, but he didn't pay her any attention.As soon as the man penetrated into her body, he immediately launched a fierce attack on the target.The girl felt a little helpless, at first she didn't care about the man's violent back and forth jerking, because her vagina was very wet and full of the previous man's semen.But the man's movements seemed to last forever, and she felt her vagina getting drier.After finally waiting for the man to ejaculate and leave her body, the girl took a breath. The sex feast is over for the time being, and the group of young people relax again and continue to indulge in alcohol and marijuana.They took turns to swim in the sea, and after a short swim in the water, they went ashore to enjoy the sun, wine and marijuana leisurely.It wasn't long before the older woman asked the strange guy who grew up in the area to have sex with her, even though it wasn't long before they both finished.However, it was an hour later that the group of young men actually started another sex session, when the young girl expressed that she wanted to try a man who hadn't had sex with her yet.Her request immediately sparked a chorus of other men who wanted to try the older woman too. The second round of group sex had completely lost its frenzy.Over the next three hours or so, all five men had intercourse with the two women, and all five ejaculated.This time, though, there was nothing rushy about their intercourse, and all five men spent a good amount of time pumping back and forth slowly and repeatedly.They are sometimes only physically engaged with women, while chatting, drinking, smoking, but not moving.They sometimes leave a woman's body without ejaculating, and after a short while, continue to have sex with the next woman who is willing and available.This group of people kept repeating the sex act like this, and the urgent atmosphere had completely disappeared.Gradually, the intervals between intercourse became longer and longer, and after the last ejaculation of the five men, one after the other, none of them wanted to penetrate the woman's body again. The last one to ejaculate inside the young girl was the one who grew up locally.One of the other four men had been frustrated 30 minutes earlier when he penetrated the girl but failed to ejaculate inside her.After the second round of sex feast, the girl swam in the sea for a while and returned to the shore, enjoying the last bit of sunshine of the day.It was still hot.Despite the group sex that afternoon, the girl's pussy still felt inadequate.She walked up to the prone native youth and straddled his stomach again, but this time she didn't turn her face to the man because she wanted to talk to her girlfriend, the older woman.Others still continued to smoke and drink, but no one was so enthusiastic anymore.The girl played with the man's penis while chatting with the older woman.When the penis becomes hard, the girl sits on it by herself.The girl didn't feel arousal when the penis entered, she felt a burst of satisfaction.They held this position for ten minutes, the girl continuing to talk to the older woman, and the man smoking marijuana on his back.During this period of time, in addition to the above-mentioned movements, their bodies continued to perform subconscious movements, and the man's penis continued to sprint gently and gently into the girl's vagina.And that's exactly how she wanted to feel. Next, the girl's sensations suddenly and unexpectedly changed - she felt the tremor just before orgasm.The girl's first reaction was to sit on the man's cock and shake her body more violently, and then she used her hands to stimulate her own clitoris.And the man gradually intensifies his sprint.The excitement grew stronger, and the girl first closed her eyes, then opened them again, gazing into the eyes of the older woman in front of her.This is the second time she has repeated this behavior this afternoon.At this moment, the older woman helped the girl, and she bent down to kiss the girl's thigh at the right time.The girl had an orgasm immediately.Within seconds, the man also had an orgasm. An hour later, the sun disappeared behind the cliff, and the group of young people embarked on the long return journey.They were all exhausted from the sex and marijuana.But when they walked back to the parking lot and found that their car was gone, the adrenaline secreted in their bodies made them tense up again.Their car had been stolen by the young boys who had seen them arrive at the beach a few hours earlier. It didn't matter that the car was stolen, and their passports were gone, which was a big surprise.Those two cars are equivalent to their living quarters, and they are full of their luggage, passports and money.It took them an hour to walk to the nearest town, another hour to call the police at the local youth's arrangement, and then wait for the police to take them to a neighboring town. The group of young people lost their passports and immediately encountered difficulties from the local authorities, especially when they wanted to withdraw money.They had to borrow some cash from a friend who lived there, and the amount they borrowed was just enough for a two-day ride to the nearest big city to apply for new passports.They take every opportunity along the way, anytime, anywhere, to sleep when they can.They were huddled together in the back of a truck one day when the older woman noticed for the first time that the girl seemed unusually depressed.The girl explained after she asked repeatedly: her contraceptive pills were all in the luggage.Seeing that everyone was worrying about passports, she couldn't bring it up much.The older woman herself did not have this problem, and the other young men were well aware of it.The woman had had sex with countless men without any form of contraception over the past decade, so she was convinced she had all but lost her ability to reproduce.Women are immediately worried about girls.They planned to find a solution after arriving in a big city. However, applying for a new passport took too much time, and negotiating with government agencies also made them feel tired. Coupled with the language problem, they later decided to wait to return to China. Come back to the sea to find a way. As soon as everyone returned to the beach, the girl immediately asked the local youth for help.He was also the man who first and last had sex with her four days ago.It took them another day to find a new box of birth control pills for the girl.At this time, the police also found their stolen two cars, but all the luggage had disappeared.Next, the girl became pregnant.Five sperm armies waged a sperm war inside her and finally produced a victor. In Scenes 18 and 20, we explained the issues that women should consider when choosing a mate.But in those scenes, the two women seem to prefer an absurd and indiscriminate plural sex over other efforts.From the point of view of female reproductive success, under what circumstances are women more inclined to adopt this type of intercourse?Besides, what is the effect of this plural sexual intercourse? According to a survey of nearly 4,000 women, in most societies, very few people have participated in similar sex parties, and the proportion of these people is less than 1%.But sometimes this kind of behavior happens frequently.Of course, the precedents of the above-mentioned sex parties have existed since ancient times. For example, many famous historical documents record the sex feasts of ancient Rome.From an anthropological point of view, some societies specifically ritualize plural sexual intercourse between adolescent men and women, while others naturally develop such group sex gatherings.Roughly speaking, excessively violent indulgences are rare, and similar but less excessive behaviors are not uncommon. For example, in the group sex in scene 21, the same woman not only allows multiple men to have sex with her in a short period of time, but also has sex in front of everyone. This is quite an extreme approach.Another extreme form of plural sexual intercourse is when the same woman allows two men to have intercourse with her in different places over a long period of time.Both extreme forms of plural intercourse are dominated by women, so they are essentially the same.Through plural sexual intercourse, a woman chooses the man with the best genes as the father for her offspring from two or more men, and at the same time causes a sperm war among the sperm of many men.This approach not only allows a woman's offspring to inherit all of her chosen traits, but also her offspring to acquire good genes and, therefore, the ability to produce highly competitive semen.As long as the benefits outweigh the relative costs (for example, a higher risk of STDs from having sex with two or more men), a woman can benefit from her behavior. On the face of it, the strategy described above only pays off when women give birth to boys.Because competitive or not, girls can't make semen.In one sense, this conclusion is correct—the sex of a woman's offspring does affect her reproductive interests.But the effect is not significant, because whether women give birth to boys or girls, they can inherit genes and pass them on to their children, grandchildren, great-grandchildren and so on.Among these genes are certain traits that women select from men (the winners of the sperm wars), and competitive sperm is of course one of the traits that women select for.The only advantage a woman has in having a boy is that she bears an offspring with a strong sperm, which, at the same time, will be possessed for generations to come. A woman has a big problem when it comes to practicing her reproductive strategy: The men she co-opts into the sperm wars rarely get an equal chance to show off the merits of their sperm.Because in the case of long intervals between two ejaculations, the outcome of the sperm war usually depends on the timing of the woman's ovulation, rather than the combat effectiveness of the two teams of sperm.As we illustrated in Scenario 6, if the woman's spouse can ejaculate inside her a few hours earlier, he may win the sperm war, not because his sperm army will be more dominant or Become weak, but his impromptu addition of new sperm is likely to meet the egg in time. The shorter the time interval between females obtaining sperm from different males, the better the ability to measure the competitiveness of these sperm.Ideally, the semen of both men is mixed before their sperm leave the pool.In this way, the sperm of both sides can get a completely fair chance, and the real strong can win.However, this ideal situation is only possible when two different men's penises are inserted into a woman's vagina at the same time and ejaculate at the same time.Since the above-mentioned situation is not easy to come across, we will not discuss it here.And what's interesting is that women can take advantage of the timing of male ejaculation to control the overall situation.She can actively regulate the timing of two men's ejaculation inside her, and thereby decide which sperm wins, depending on whether she chooses the competing sperm or other characteristics of the male.Basically, the closer a woman ejaculates two men, the more she is inclined to select for sperm competitiveness; the farther apart she ejaculates, the more she is inclined to select other male characteristics (especially some A man has traits that a woman loves, and her body even alters the timing of ovulation to allow the man's sperm to win).However, no matter how much a woman favors one of the men in the sperm war, as long as the other man has strong sperm, he still has a chance of winning. Often, when a woman wages a sperm war strategically, she has different men ejaculating inside her, with ejaculation periods ranging from hours to days.According to a survey conducted in the UK after 1980, about 80% of women have had "sexual intercourse with two men within five days" in their lifetime (here it is assumed that the average number of sexual intercourse in "a lifetime" is 3000 times), while 69% had intercourse within one day, 13% within 1 hour, and 1% within 30 minutes.This result proves that, in most cases, women will obviously choose men with certain characteristics, which we have also introduced in scene 18.But on the other hand, it can also be seen from the above-mentioned surveys that women occasionally give priority to sperm with strong reproductive competitiveness. The two women in Scene 21 had two or three different men ejaculate within minutes, and they even actively encouraged the men to ejaculate inside them.A few hours later, they again received the semen of five men.In doing so, the two women sought to choose a father for their child from among five candidates.And in order to select a male with strong reproductive ability as much as possible, they had sex with five males in such a short period of time. The older woman in the scene, who knows she's infertile, is as zealously trying to start a sperm war as the young girl.At this point, from the point of view of reproductive success, you may find her behavior a bit strange.Because you might think that she doesn't have much to gain in the sperm wars.On the other hand, one might think that if the men knew she was sterile, they might not be as interested in her, let alone have sex with her, as they are with young girls.In fact, those men were not that interested in her, but it was not very obvious.And they acted that way only because there were younger girls present.Taken as a whole, however, the group behaved as if the older woman was still fertile, as was the woman herself.Why is this? The real reason was that none of these people knew whether the woman was fertile or not.Of course she may well have lost her ability to reproduce.Because one of the costs of having multiple sexual partners is the high likelihood of being infected with an STD.One of the costs of sexually transmitted diseases is infertility (more than half of infertility is caused by sexually transmitted diseases).But even though an older woman may suffer from infertility, she still has the hope of conceiving.Natural birth control can cause a woman to be seen as infertile, which can last for years or more.However, given the right partner and the right circumstances, it is still possible for this woman to become pregnant. Whether or not the older woman in our example suffers from infertility does not affect her behavior in any way.In order to pursue the fruit of reproduction, her body believes that the only way to achieve the goal is to find a suitable man to ejaculate inside her at the right time, and her behavior is also based on this premise.If the woman has been unable to conceive, it may make her behave more like the older woman in this scene.Not many women who are potentially infertile resort to this kind of plural intercourse to achieve pregnancy, but some women do take advantage of it.In this scene, the older woman's body strives to procreate, just like the reproductive young girl, and the older woman's purpose is all reflected in her behavior.Likewise, the bisexual behavior of the two women served the same purpose. They participate in group sex in the scene, in order to test as much as possible how brave the few men are in the sperm war.While the strength of the sperm army depends primarily on the ability of the sperm to compete, there are many other factors that play a role, some more than others. For example, certain sexual positions appear to make sperm more competitive.Men think that if they can figure out the ideal sexual position, they will have the best chance in the sperm wars.But in fact, the sexual intercourse position may have nothing to do with the result of sexual intercourse. No matter what posture is used for intercourse, the semen pool is formed deep in the vagina.As we explained earlier in this book, the semen pool remains in place even after the penis leaves the vagina.On the one hand, this is because the semen will condense quickly near the cervix, and on the other hand, because the vagina will be tightly closed immediately after the penis withdraws to keep the semen pool still.Only in the female-on-top position is there any risk of some of the semen in the pool being lost, so that sperm may not have time to enter the cervix.But even then, the danger is only present if the man withdraws his penis too soon after ejaculation. Sexual position has no effect on the formation of the semen pool or the entry of sperm into the cervix.All this is due to the delicate structure of the cervix.For example, during intercourse in the face-to-face position, a pool of semen forms at the bottom of the vagina and the cervix descends into it.During intercourse in the behind-the-back position, the cervix may sit at the bottom of the semen pool like a sink spout, or it may be elastic like a spring rolling down a staircase, where it may sometimes sink into the semen pool and sometimes protrude over semen.As for the female upward position, the cervix protrudes obliquely and protrudes into the semen pool.In addition, no matter how the woman changes her body position after ejaculation, the solidified semen will definitely slide with gravity.Gravity even helps the cervix hang in the semen pool, keeping the cervical mucus in contact with the semen. Major changes in sexual position do not affect the state of sperm in a woman's body, but sexual position can affect whether men and women are on the alert or defenseless during sex.For example, we also used a male as an example in scene 21. Some sexual positions are indeed more conducive to defense than others.And rear sex, at least for men, puts him on his guard. When it comes to the sperm wars, the amount of sperm a man delivers to a woman during sex is more important than the position of sex.With the sperm wars looming, all men must ejaculate as much sperm as possible.If this cannot be done, men are doomed to annihilation in the sperm wars. In this scene, however, those men have to ejaculate inside two women, and they have strategic issues before them.Since no one can guarantee that they will have a chance to have sex with the second woman, they should try to inject as much sperm as possible into the first woman; however, it seems likely that they will also have sex with the second woman , so they shouldn't have sent all the sperm into the first woman.How many sperm armies would they send out, in exact numbers?It depends on how long they have had sex with two women.Suppose a man and two women have intercourse 48 hours apart.In this case, the average man will ejaculate 450 million sperm in the first woman, and then 350 million sperm in the second woman.But in fact, not all men are "average men". If any of the men here is a sperm war warrior, like the man we introduced in scene 19, then the outcome will be decided immediately.His big testicles and loads of sperm will give him a win that day.However, there is another physical characteristic that can affect the results of the battle as much as the testicles, and that is the penis, and the size of the penis can also affect the victory. Many people don't know that the human penis has other functions besides sending sperm deep into the vagina.The human penis is an excellent suction piston. The shape of the penis and the back-and-forth jerking that occurs when it is inserted into the vagina are not accidental. The human penis evolved to its current size and shape to put women All the substance in the vagina is pulled out.And the human penis works best when it gets the pool of semen, or "reflux," out of the vagina.As the penis is pushed forward, the foreskin recedes, exposing the glans. At this time, the smooth tip of the glans pushes all the semen and mucus in the vagina.The penis is then pulled back and two things happen: first, the protruding edge on the inside of the tip of the glans pulls out any material behind it; Substance, then, is drawn out from the depths of the vagina, waiting to be drawn out the next time the penis is pushed forward.The penis jerks back and forth extremely fast during intercourse to get all the semen left in the vagina from the previous intercourse.The back-and-forth pumping even works to get out some of the mucus and any blocker sperm left outside the cervix.The faster and longer the back-and-forth pumping, the better the semen residue left in the vagina from previous intercourse will be removed.Also, the larger the penis size, the more efficient the cleanup will be. If the men in scene 21 want to successfully plant seeds in women, the key part is whether they can figure out the reason why they are waiting to ejaculate, and they must be able to adjust their behavior according to the situation. The first strange guy to creampie a young girl is able to pre-empt it.He has the best chance of sending out his army of sperm first, and the sperm that follow him into the girl will have a harder time surviving.即使他还有机会在那名年长女人体内射精，整个情况都不会比他先在女孩体内射精更有利。第一次射精时，他尽可能地送出的大量精子，数目远远超过其他男人（例如说，六亿个精子），而他同时还会留下少量精子（例如说，两亿个精子），以备下次性交时使用。男人这样分配自己射出的精子数目，能使他在五名男人当中占尽优势。此外，由于他抢到打先锋的角色，所以他必须尽快射精。要是他稍有拖延，其他几个男人就可能把他拖下阵来。正因为情况紧急，所以陌生男人在女孩到达高潮之前就先把精液送进了她的身体。 这个场景里的陌生男人抢先在女孩体内射精之后，有一件事是他该做却没做的，那就是他应该尽可能地延后下个男人的射精时间。这样，才能让他自己的精子大军拥有最多时间离开精液池，并向各处展开进攻（最先在年长女人体内射精的男人就做到了这一点。即使因此与其他男性引发冲突，他也在所不惜）。另一方面，年轻男人虽然射精在女孩体内，但女孩却没在性交过程中达到高潮，这是因为她心中另有所图。女孩离开年轻陌生男人之后，立刻又去和第二个男人交媾。 对第二个男人来说，前面的男人一结束性行为，他就应该尽快地将阴茎插入女孩体内。因为动作越快，越能让他得到最佳繁衍成果。当然，由于他已经从头到尾欣赏过女孩的前次性交过程，这正好对他的紧迫状况有所帮助。就像大部分的男人一样，第二个男人看到他人进行性交时会感到性兴奋。在他等待轮到自己上阵的过程中，他的阴茎已经勃起，蓄势以待。就繁衍策略来看，第二个男人把阴茎插入女孩体内之后，他将面临两个选择。首先，他可以尽快地射出大量精子，尽量阻碍第一个男人的阻挡者精子前进。不过这么做有个坏处，就是他也可能会把自己的精子直接射进前一个男人的精液池里；另一个办法是，他可以尝试以更持久、更强劲的前后抽动把前一个男人的精液池掏空。但是这么做他也得付出代价。由于这会让他耗时过多，其他男人可能会把他赶下阵去，这样他就会彻底失去排名第二的射精机会。至少，在第一回合团体性交时，他会失去这个机会。 能抢先第一个射精的男人，他的机会当然强过第二个男人，相同地，第二个男人的机会又强过第三个男人。因为这样，排在第三位的男人决定不再等待。他略施小计，成功地插队变成了第二名。第三个男人不顾遭受攻击的危险，抓准最佳时机采取了行动。 第四个男人实际上毫无选择。在等候与年长女人性交的时候，他原本想排第二，但计划未能得逞，于是他只好去年轻女孩身边排班。他和女孩性交时，女孩阴道里面已经有了另外两个男人的精液池。这时他惟一的选择，就是尽其可能地以最持久、最有力的前后抽动来把前两个男人的精液掏出来。这一点，他似乎做得很不错，因为女孩当时感到阴道里越来越干燥。待他射精的时候，女孩的阴道里面全都是他的精液。但他也付出了代价。清理前两个男人的精液让他耗费不少时间，这时第一和第二个男人的精子已经利用这宝贵的几秒钟，游进了女孩的子宫颈，并且完成了埋伏工作，准备对付第四个男人的精子大军。 对这里的五个男人来说，最好的繁衍策略就是尽快地在每个女人体内射精。正因为如此，这个场景的团体性交第一回合里，所有性行为都显得十分狂热而稍具攻击性。第二回合就不一样了。到了下午，每个人的步伐和战术都显出了变化。Why is this? 有一点我们必须认清的是，在女孩体内打赢第一场精子战争，并不保证一定就能让她受精。除非她在团体性交之后两天内排卵，而且那些少数捷足先登的精子军队又正好进入她的输卵管，她才有可能受孕。如果她不是在团体性交之后两天，而是在四、五天之后才排卵，那整个情况就会大为改观。对五名男性来说，虽然他们狠命一拼，就有可能获得第一回合的成功，但从另一方面来看，采取较长程的迂回战术也是值得的。 团体性交过后的第四天或第五天，第一回合时射进女孩体内的精子，这时几乎全都已经死了，或者正要死去。接下来，时间一分一秒过去，女孩仍然没有排卵，这时那些在性宴后半射入女孩体内的精子，就越来越有可能让女孩受精。尤其，如果这些精子都还十分新鲜的话，可能性就更强。这些新鲜精子会一直留在女孩体内，它们的受精能力将持续到最后一刻，换句话说，即使女孩排卵的时期延后一些，这些新鲜精子仍然极有机会钻进卵子。当然，这些晚到的精子很可能受到抢先进占的阻挡者或杀手精子的攻击，不过它们还是有可能获得成功。 在最初两次性交时，5名男性把体内所有的精子大致地平均分给了两名女性。他们这么做，对稍后进行的迂回战术并无妨碍。任何男人都能以每小时一千两百万个的速度不断制造精子，新鲜又年轻的杀手和取卵者会源源不断地进入男人体内的精子队伍之中。在那个狂欢的下午，从第一次射精之后大约5小时之内，每个男人都重新制造了6000万个新鲜精子。对他们每个人来说，等候上阵的时间越长，体内制造出来的新鲜精子也越多。 到了第二回合团体性交时，5个男人都曾企图做到两件事。首先，他们都想尽可能地把前一个男人的精液池掏空。由于他们体内已经没有多少精子了，因此就有必要把连接子宫颈的通路弄得顺畅一点。其次，他们都尽可能地想排在最后一个上场，因为这样他们才能尽量制造更多新鲜精子射进女人体内。在这种情况下，5个男人都面临着一个问题：如果过早和两个女人性交，他制造的精子数目就比较少，而且他可能就无法担任女人的“最后一个男人”（最后一个射精在女人体内的男人）；但如果男人等待过久，女人可能会失去“性”趣，他就会错过和两个女人分别性交的机会。不论如何，只要男人开始和女人交媾，每个男人这时都会尽可能延长性交时间，并把前后抽动速度减到最慢，这样他才能判断出最佳时机，把精液射进女人体内。男人如果觉得时机过早，他甚至还会抽出阴茎，等待片刻。在上述的团体性交过程里，这五个男人就是这样各自做出决断，射出他们最后的精液。 当然，这5个男人当中，没有一个人会意识到自己的身体有过这番挣扎。他们只知道，轮到自己和两个女人之一性交时，他们会感到不同程度的兴奋。如果男人的身体判断最好及早射精，这时他就会感到强烈的兴奋，而事实上，这时只要他一插入阴茎，就会立刻发生自发性射精。如果男人的身体想把前几次的精液残渣尽量收拾干净一点，这时他感到的兴奋程度，最多就只能让他阴茎勃起。碰到这种情形，男性的身体在得到足够刺激并到达射精高潮前，就得花更多力气在前后抽动上。如果男性的身体决定还要再多等一会儿，这时他会暂时失去“性”趣，而勃起的阴茎也会变小。最后，如果男性的身体认为，即使再把自己的精液送进女人身体，他也不会赢得任何利益，这时他就会感到“性”趣全失。 在上述的复杂反应与交互作用过程中，能够获得最后胜利的男性，必是身体能够及时判断最佳射精时机的男性，他的身体能够尽其可能地妨碍其他男人射精，同时还能精确判断自己该何时性交、何时进行前后抽动、何时不需要前后抽动等。女性的身体为自己的后代寻找的父亲正是这样的男人。为了获致更丰盛的繁衍成果，女性在这里所扮演的角色，就是尽可能地给予每个男性最多机会，让他们证明自己的能力——同时也让他们犯下错误。在前述团体性交第一回合里，两名女性任由男人们性急地进行前后抽动和性交，她们因此获得最大利益。到了第二回合，她们又让男人用她们的阴道来玩抢椅子游戏，因此而再度获得最大利益。 两名女性在第二回合给了男人们最大的机会，她们让男人进行长时间的性交。不论男人的决定对错与否，她们让男人自己决定最后一次射精的时机，因为就女性为她的子女选择父亲来说，这才是最精明的选择方式。两名女性不经过任何前戏，就让男人和她进行长时间性交，这是因为她们要借此测验每个男人的能力能否占有她的阴道？能否持续勃起？能否判断最佳射精时机？而这些都是女性想要留传给她的儿子或孙子的。 在那漫长、缓慢、又放松的第二回合里，两名女性只要有勃起的阴茎放在阴道里就感觉十分满足。她们的身体决定给予男人们最大机会，好让他们在精子战争中能有英勇表现，而也可能因为这个原因，才使她们对单纯的性交失去了兴趣。另一方面，在短暂又疯狂的第一回合里，两名女性可能曾经追求过另一种满足，她们在第二回合里也尝试追求过一两次。这时她们要的不是沉稳温柔的阴茎带来的那种感觉，她们企图抓住的是即将陷入高潮冲动前的那一瞬间。 在这个场景里，我们不知道那个年长女人是否曾经到达高潮。但年轻女孩有过两次高潮。一次是在第二个男人插入阴茎后，她立刻到达了高潮，另一次是在团体性交的最后，那个陌生男人和她性交的时候。这两次高潮代表的意义是，女孩事实上并没给予所有男人相同的机会，男人们没法公平地展开一场精子大战。女孩表现出她是有所偏爱的——她喜欢的是那个陌生男子。女孩是用什么方法来表现她的偏好呢？这一点让我们留到场景25里面再加以说明。现在，让我们来研究一下，女孩为什么会偏爱那个陌生男子？ 女性选择男性时，特别是在选择外遇对象时，“媚外”是个极有力的因素。就这种倾向来说，女性可说是灵长类动物中的代表。举例来说，根据观察显示，雌性的红疣猴差不多会跟所有的陌生雄猴交配，但它们却避免跟认识的雄猴交配。同样地，很多人都知道，雌性猕猴会为了交配而故意让陌生猕猴加入它们的群体。这些新来的陌生雄猴在群体里地位都很低，有时甚至会被原来群体的雄猴杀死，但是雌猴仍然愿意与之交配。 当然，灵长类的女性并不会让所有陌生男子和她交媾。这些男子必须符合她的其他选择标准才行。重要的是，同时有两名符合条件的男性出现在女性面前时，她会倾向于选择陌生人。一般来说，女性的所做所为都会谨慎考虑到未来。她可能会认为，如果陌生男子最终能在群体排行中争得较高地位，他就会善待这名女性，而如果他成为她孩子的父亲，那他当然也会善待她的孩子。 场景21的年轻女孩比较偏爱那个陌生男子，但我们看不出她究竟只是因为他是个陌生人，或是因为他比其他男性更符合她的标准才喜欢他。总之，不管是因为什么理由，女孩看中了陌生男子的精子。首先，她在团体性交开始之后、结束之前都要求和他性交。其次，女孩在性交集会的第二回合里获得高潮，她在这一回合里，只有和陌生男子进行性行为时才达到高潮。不过，另一个现象却又可能令人觉得矛盾：在疯狂的第一回合里，女孩和陌生男子性交时并没得到高潮，在那个回合里，她的高潮是和陌生男子之后的男人性交时达到的。事实上，这个结果并没有矛盾之处，关于这一点，我们将在场景25里面加以说明。