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Women Prefer Larger Penises Because They Are Sluts  Promiscuous

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Are Women Sluts By Nature?

Although women are by nature unfaithful, the word "slut" has a very negative meaning to it, so you shouldn't use it to describe women. But you can say that they are promiscuous by nature.

For some people such information might be hard to accept. But there are plenty of scientific articles that support the basis of my statements. Although they were not written to explain the penis size issue, they are essential to help understand why women prefer larger penises.

Below you will find a compilation of these  articles. The original ones can be found at Look for the chapters Sexual Organs and Female Sexual Selection, Part 1 & Part 2 They are not written in the easiest language and contain plenty of jargon, but they are worth a look. Please note that the above mentioned website is not related to

(Talking about sluts, did you know that The average American woman is a whore?)



Charles Darwin
Charles Darwin (1809-1882), developed the theory of Natural Selection and the concept of Sexual Selection

Sexual Selection

Scientists believe that females chose males with larger, sexually stimulating organs above males with smaller genitals.

The basic thing to understand is the concept of Sexual Selection, which is a special type of natural selection. There are two forms of sexual selection: intra-sexual selection and epigamic selection. Epigamic selection is the one that matters to us. It occurs when females accept males with certain characteristics over other males. An example is the human male's penis. With time female choice has caused it to develop to a "large" size, since females preferred mating with males possessing a large penis.



Sexual Selection and Female Choice:

"So, when a woman proceptively approaches this man and not that, she has de facto made a selection. On the other hand, if the man approaches her, she also decides to accept or reject. If, for whatever her reasons, she finds him "uninteresting" and turns away, she has selected him out. Or, if she responds positively to him, she has given him a chance to proceed. Either way, she makes the choice."
(Perper, Timothy (1989) Theories and observations on sexual selection and female choice in human beings. Medical Anthropology 11(4): pp. 416)

Female Choice and Penis Size:

"We do not know why men have conspicuous genitals, but a male chimp solicits a female by opening his legs, displaying an erect penis and flicking his phallus with a finger as he gazes at a potential partner. A prominent, distinctive penis helps broadcast one's individuality and sexual vigor, which may lure female friends. In many species of insects and primates, males have exceptionally elaborate penises, and scientists think these evolved specifically because females chose those males with elaborate, sexually stimulating genitals. So perhaps as Lucy's ancestors became bipedal some four million years ago, males began to parade their genitals in order to make special friends with favored females--selecting for those with large organs."
(Fisher, H. (1992) Anatomy of Love: The Mysteries of Mating, Marriage, and Why We Stray. Simon & Schuster, New York, 1992. pp. 177)

Female Promiscuity:

"Roger Short...had predicted that in {primate} species where females mate with more than one male during a reproductive cycle, the males would have larger testes for their body size than in species whose females had only a single mate per cycle. When the females were promiscuous, the sperm of each male would have to compete with those of other males, and the male producing the most sperm was most likely to generate offspring. [quote from] (Harvey and Clutton-Brock 1983, p. 315"
(Cronin, Helena (1992) The Ant and the Peacock: Cambridge Univ. Press, Cambridge p. 97)

Female Choice and Penis Size:

"One characteristic among primates has been clearly targeted for possible selection by Fisherian female choice--male penis size. Primate males living in groups with many females and many males, groups in which promiscuity is the mating rule, have long penes (Dixon 1978). Male chimps, in fact, use their penes for display toward estrous females. Because a longer penis would give a female pleasure (note that the human male has the longest and thickest penis of any primate), female choice might have been a factor driving penis length to extremes among primates."
(Small, Meredith F. (1993) Female choices: Sexual behavior of female primates. Cornell Univ. Press, Ithaca, 1993 pp. 109)

Sperm Competition and Penis Size:

Sperm competition can occur even if a female copulates with different males several days apart. This is because sperm are hardy and may survive in the vagina of a chimpanzee or woman for as long as eight or nine days. Any female who copulates with more than a single male while ovulating opens the gates to a sperm race. (...) Copious sperm production (estimated by testicle weight), deep penetration, and an elongated penis are all presumably advantages to males engaged in sperm competition. Perhaps most important is sheer sexual vigor, with more active males ejaculating the greatest number of times gaining a competitive edge (...) There is also evidence that a woman who climaxes while making love to her lover is more likely to become pregnant by him."
(Margulis, L & Sagan, D. (1991) Mystery Dance, On the Evolution of Human Sexuality: Summit Books, New York pp. 37)

Sperm Competition and Penis Size:

"An excessively large penis produced by epigamic selection would be no less effective in delivering sperm than one of optimal length, but a substantially shorter (than optimal) penis would obviously place its owner's ejaculates at a disadvantage in competition with those deposited by a longer organ. Therefore it may be possible to test some predictions of the ejaculate delivery/sperm competition hypothesis for human penis length and distinguish this function from one of display."
(Robert L. Smith (1984) Human Sperm Competition. in Sperm Competition and the Evolution of Animal Mating Systems pp. 631)

Female Promiscuity and Testicle Size:

"More convincing vestiges of a sexual selective history in which females mated polyandrously can be found in the human male. Perhaps the clearest such vestige is testis size (Short, 1977). Men's testes are substantially larger, relative to body size, than those of gorillas, a species in which males are polygynous but females mate monogamously so that "sperm competition" within the female reproductive tract is absent. (goes on to talk of chimpanzees)"
(Wilson, M., Daly, M. (1992) The man who mistook his wife for a chattel: The Adapted Mind; (Barkow, J.H. & Cosmides, L. & Tooby, J. eds.), Oxford Univ. Press, New York. p. 299)

Female Promiscuity:

"Large testes and big penises are advantages only under conditions of widespread sexual promiscuity. Among our closest relatives the great apes, only male chimpanzees have testicles more prodigious than those of men. And chimps, with their big, heavy testicles, are more sexually promiscuous than humans. that the sperm-producing organs of chimps and humans are relatively big and heavy strongly suggests that some of our not-so-distant hominid ancestors were far more promiscuous than gorillas and orangutans --- or than many people are today. In the evolutionary past, the competition to reach primate eggs was sometimes between sperm from different male donors. If two or more males copulated with the same female within a period of days, an advantage in begetting offspring accrued to the one who ejaculated the greatest quantity of vigorous sperm cells. (...) the male with the best-timed copulation, most far-reaching ejaculation, and biggest testicular "engine" able to produce the greatest quantity of sperm tended to win the "game" of impregnation."
(Margulis, L & Sagan, D. (1991) Mystery Dance, On the Evolution of Human Sexuality: Summit Books, New York pp. 33)

Penis Size and Pregnancy:

"The large average size of the human penis (five to six inches, versus three for chimps, and one-half that for gorillas) may have been, evolutionists speculate, to frighten other males. Or to attract females. Or to enhance their pleasure. Perhaps the best hypothesis is that the longer penis delivers sperm more closely to the eggs: today's biologists claim that for females who mated with several males, the male with the longest penis delivered his sperm more safely."
(Margulis, L & Sagan, D. (1991) Mystery Dance, On the Evolution of Human Sexuality: Summit Books, New York pp. 23)

Female Promiscuity and Testicle Size:

"As we have seen, chimpanzees live in groups where several males may share a female, and therefore there is a premium on the ability to ejaculate often and voluminously---he who does so has the best chance of being the father. This conjecture holds up across all the monkeys and across all rodents. The more they can be sure of sexual monopoly, as the gorilla can, the smaller their testes; the more they live in multimale promiscuous groups, the larger their testes. It began to look as if Short had stumbled on an anatomical clue to a species' mating system: Big testicles equals polygamous females. (...) Let us now apply this prediction to man. For an ape, man's testicles are medium-sized---considerably bigger than a gorilla's. Like a chimpanzee's, human testicles are housed in a scrotum that hangs outside the body where it keeps the sperm that have already been produced cool, therefore increasing their shelf life, as it were. This is all evidence of sperm competition in man. But human testicles are not nearly as large as those of chimps, and there is some tentative evidence that they are not operating on full power (that is, they might once have been bigger in our ancestors): Sperm production per gram of tissue is unusually low in man. All in all, it seems fair to conclude that women are not highly promiscuous, which is what we expected to find."
(Ridley 1993: 220-21, The Red Queen)

Sexual Selection and Clitoris Size:

"Based on this analysis of the adaptive functions of female orgasm, we can start to understand why the female clitoris remained small and relatively hard to stimulate, while the male penis enlarged to unprecedented proportions in our linage. Maintenance of a small, relatively hidden, and relatively hard-to-stimulate clitoris enhanced female discernment and choosiness with respect to assessing sexual stimulation by males. A larger, more protuberant clitoris which could have been effectively stimulated by almost any tactile contact, however inept, would have made its female bearer less able to judge the relative stimulation capabilities of different males. She might have mated with less sexually competent males and produced less sexually competent sons."
(Miller, Geoffrey F. (1994) Evolution of the human brain through runaway sexual selection: the mind as a protean courtship device. unpublished thesis. pp. 215)

Penis Size and Genetics:

"... Applied to sexual selection, this means that sons will tend to inherit their mother's mate preferences, and daughters will tend to inherit their father's sexually-selected traits. To cite an example from Dawkins (1986), one is as likely to inherit the genes for a large penis from one's mother as from one's father."
(Miller, Geoffrey F. (1994) Evolution of the human brain through runaway sexual selection: the mind as a protean courtship device. unpublished theses. pp. 113)

Importance of Sexual Selection:

"The massive space devoted to hands, lips, tongue, and genitals in the primary sensory and motor cortices of the human brain can be interpreted as reflecting their sexual-selective importance in courtship, foreplay, and copulation, as much as their ecological significance."
(Miller, Geoffrey F. (1994) Evolution of the human brain through runaway sexual selection: the mind as a protean courtship device. unpublished thesis. pp. 182)


Next: Women prefer big penises because they give more physical pleasures 


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Penis Enlargement Opinion

Defeating Fear of Rejection

If penis size is not a big issue to you

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