Exhibitionism

Natalie Wood“The nonverbal behavior of women toward men according to their menstrual cycle has not been previously explored. In this study, the gait of women walking ahead a male confederate was recorded with the help of a spy-camera. … Comparisons were performed according to the women’s ovulation phase measured with an LH salivary test. Near ovulation, it was found that women walked slower and their gait was subjectively rated as sexier.

Do women who like politics have more orgasms?

“This article looks at the position of the drag king in Hungarian lesbian culture. It focuses on Bandage, Socks and Facial Hair (2006), a documentary about a drag king workshop. The film documents the historical moment when the Hungarian workshop participants encounter the drag king as a lesbian tool for parodying and repoliticizing mainstream masculinity.”

“According to early modern European medical theory, men could menstruate vicariously through various bodily orifices. Although some medical men thought that the flow was pathological, others believed it brought significant health benefits. However, as the ability to control one’s body and mind became central to eighteenth-century definitions of manhood, leaky male bodies became increasingly problematic.”

Tony Perrottet’s article, “Who was Casanova?”

Danny Sutton photographed by Bunny Yeager

Source.

The Rule of Thumb: Vagina Types and Variability of Female Orgasm … What [Princess Marie Bonaparte] discovered was a direct correlation between the ability to orgasm through vaginal sex and the measurement of space between the vagina and the clitoris.”

“Traumatic penile amputation is a rare condition requiring urgent surgical consultation with almost immediate surgical intervention. … These injuries are penetrating in nature, usually occur with the organ flaccid and most are self-inflicted by mentally unstable patients. … This report describes penile replantation in a 24-year old mentally challenged patient using 4.5× loupe-magnification to restore a functional, fully erectile penis without tissue loss and a 20-year problem free follow-up.”

“Mediated exhibitionism is the phenomenon of amateur performers exposing their nude bodies on the Internet, and includes the exchange of nude images by email, text message, webcam, electronic bulletin board, and other means of digital communication. … A series of websites catering to mediated exhibitionism were investigated.”

“Research has shown men and women of all ages and sexual orientations to use the Internet for sexual purposes. For example, the Internet is used to access pornography, to find sex-related information, to purchase sexual merchandise, and to find partners for romance and sex. … The purpose of this chapter is to provide the reader with an empirical and theoretical overview of the first 15 years of research in the field of Internet sexuality.”

Elizabeth Taylor:

Elizabeth Taylor (by Roddy Mcdowall)

Frisky elk, the iceman cometh, and sharia law on sex robots

“Since 1995, [75-year-old Professor Judith] Hanna, a University of Maryland [anthropology] researcher, has helped clubs repel efforts to tax, regulate or close them, arguing more than 100 times that striptease is just as much an art as ballet. Next year, her lap-dances-are-art argument will be part of an appeal before New York’s highest court. A stripper in heels is like a ballerina en pointe, she says.”

Reframing sexual differentiation of the brain: … The dominant model of sexual differentiation stated that genetic sex (XX versus XY) causes differentiation of the gonads, which then secrete gonadal hormones that act directly on tissues to induce sex differences in function. This serial model of sexual differentiation was simple, unifying and seductive. Recent evidence, however, indicates that the linear model is incorrect and that sex differences arise in response to diverse sex-specific signals originating from inherent differences in the genome and involve cellular mechanisms that are specific to individual tissues or brain regions.”

Disrobing Associated with Epileptic Seizures and Forensic Implications: … Two cases involving disrobing associated with seizures …. An additional case reveals the legal consequences endured by one patient who experienced a nocturnal seizure and began wandering in an unclothed state. Collectively, these cases illustrate the medical reality of seizure-related disrobing and the related adverse effects on patients’ quality of life.”

Pharyngula on an unfortunate woman with two vaginas: “In didelphys, the vagina is divided in two by an internal septum, nothing more.”

The 1st lesbian scifi novel: “Which makes Gregory Casparian’s The Anglo-American Alliance. A Serio-Comic Romance and Forecast of the Future (1906), the first lesbian science fiction novel, all the more notable.”

Sex Differences in Sports Across 50 Societies: … In all 50 societies with documented sports, there were more male sports than female sports; hunting and combat sports were almost exclusively male activities; and the sex difference in sports was greater in patriarchal than in non-patriarchal societies. These results show that a robust sex difference in direct physical competition co-occurs with meaningful variation in its expression.”

The origins of [circumcision] are lost in antiquity. It was performed since 3000 BC by the Egyptians for hygienic and religious reasons. … Nowadays, circumcision is performed as a routine procedure by the Jews and the Muslims for religious reasons. The world prevalence of men with circumcision is 12.5-33%, especially in USA, Canada, Islamic people and Africa; in Europe the prevalence rate is low (in Great Britain it is 1.5%).”

Dr. Petra on average penis size: “The other problem with this area is studies differ in how they operationalize their measuring of penises. Some relied on lab based studies where men were measured by researchers, others based their work on self-reports from men …. Some studies were based on erect penis measurements; others relied on stretching a flaccid penis as far as it could be pulled and measuring that as an approximation of a hard-on.”

“[Historian Ivan Crozier] explores how koro – the fear that the genitals are fatally shrinking into the body – has been central to the definition of the ‘culture-bound syndrome’.”

“Damage to parts of the penis vital for proper erections has been repaired for the first time with the help of stem cells. In rats, the treatment restored full erections, improved blood flow and accelerated healing.”

Ethical and Legal Implications of Sex Robot: An Islamic Perspective: … This study first review the state of the art in sex robot and its associated ethical and legal issues. Secondly the issue is evaluated from Islamic perspective together with position of Islamic law (Shariah) towards the deployment of robot in sexual activities. The social effect of robot sex to the institution of marriage in particular is examined.”

“‘Imagining Cihuacoatl’ examines the conundrum of the multiple identities of the ‘serpent woman’, a Mexican goddess, analysing her relationship with other goddesses in the Nahua pantheon. She and the others were marked in a particular sexualised and gendered manner in the Nahua world. This article argues that Cihuacoatl and the fertility goddesses cannot be conceptualised in a symbolic universe that has binary divisions between male and female, nor can they be analysed by the methods currently employed in the social and cultural history of sexuality.”

“Jonas and Wyatt Maines were born identical twins, but from the start each had a distinct personality.” “The twin boys were identical in every way but one. Wyatt was a girl to the core, and now lives as one, with the help of a brave, loving family and a path-breaking doctor’s care.”

“Airborne molecules that elicit a reaction in a member of the same species are called pheromones, and the most famous ones are potent aphrodisiacs, like androstenone and androstenol in the saliva of male boars. If a fertile female gets a whiff of these molecules, she’ll present her rear to the male, a universal gesture in wild pig patois that means, “Let’s start a family.””

“Swede shocked by backyard elk ‘threesome’: … While he’s used to seeing elk get tipsy from eating fermented apples, Lundgren said he was wholly unprepared to have a front row seat at an elk sex show taking place in his backyard. “I’d never seen anything like it. Not with elk, at least,” he said. … “An older bull would never try to mount a cow in a wide-open residential backyard at this time of year,” [said Pär Grängstedt, researcher at the Grimsö research station].”

British banker leaves Goldman Sachs to start a custom-fit condom company.

Bollywood actors and filmmakers interviewed about shooting sex scenes.

Typewrite erotica c. 1920′s, inc. some nudes.

Concerned clerics, Swedish sex changes and more MRI sex

Observational study of ‘Bicyclist’s Vulva’

Norwegian sex priest suspended for his book on sex in the Bible, in which he wrote that it “reeks of horniness, lust and pleasure, and is an endlessly rich tale of sex that can stimulate people’s own sex lives.”

The strange, sad tale of the overstimulated Rector of Stiffkey, a “prostitutes’ padre” who tried to “save” wayward young women and who was killed by a lion

Thoughts of death led both men and women to say that they’d be more likely than controls to go ahead with the one-night stand, thus showing how a subtle change in sexual symbolism can alter the relationship between morbid thoughts and sexual desire.

“Two studies, including an ecologically valid study of online dating advertisements, provided evidence for men’s production and women’s evaluation of humor in romantic contexts. A third study revealed that women’s evaluations of potential mates’ humor are predictive of their romantic interest. Moreover, this article shows that preferences for and perceptions of humor are associated with preferences for and perceptions of intelligence and warmth.

Inclusive fitness and kin selection in an account of homosexuality’s survival value

The intelligent homosexual’s guide to natural selection

Just How Naughty was Berlin? The Geography of Prostitution and Female Sexuality in Curt Moreck’s Erotic Travel Guide

Anita Berber

Anne Tamar-Mattis argues that ‘intersex’ should be kept out of the DSM, which leads her to oppose expanding the concept of gender identity disorder.

In Sweden, opting for a sex change entails consenting to be sterilized, since “if a woman becomes a man, she should not be able to become pregnant as a woman.” Some are trying to change this law.

A stats professor has a “learning experience” occasioned by a transvestite cardinal (a bird, not a cleric).

While writing about The Story of O, Susan Sontag “compared the ratio of first-rate pornography to trashy books within the genre to “another somewhat shady subgenre with a few first-rate books to its credit, science fiction.” She also maintained that like science fiction, pornography was aimed at “disorientation, at psychic dislocation.””

From Just Jaeckin's film version of The Story of O

Naomi Wolf: “We now know that porn delivers rewards to the male brain in the form of a short-term dopamine boost, which, for an hour or two afterwards, lifts men’s mood and makes them feel good in general. The neural circuitry is identical to that for other addictive triggers, such as gambling or cocaine.” NOTE ADDED (July4): See the refutation at Mind Hacks.

Another orgasm in an MRI: “”This kind of research is incredibly useful,” says Heiman. “Orgasm is tied into the brain’s reward system and likely other important systems as well. There is much we can learn about the brain, about sensation, about how pleasure works and probably much more from this one physical response.”"

One interesting ability that Kamisaruk found … is that some women … were able to “think themselves” to orgasm. Without using any external stimulation, women closed their eyes and, using only sometimes erotic imagery but just as commonly very random and abstract thought processes, achieved an orgasm that was indistinguishable from orgasms achieved through self-stimulation.

Scicurious on rat studies that clarify how antidepressants interfere with ejaculation

Annie Sprinkle likes Chester Brown’s comic-strip memoir of being a john

Genital microflora, pessaries and mean oxytocin

Hung like a … bull: “This is a report on advances in the field of penile prosthesis surgery for the fibrotic penis through the years 2006 to 2008. In that time, bovine pericardium was added to the choices of graft materials used to expand the corpora to accommodate the implant alongside the fibrous tissue.

From an article called “Management of Penile Implant Complications”: “Avoid the penile dorsal nerve complex at all costs …. A cut across the dorsal nerve with electrocautery cannot be reasonably repaired, and the patient will be left with distal penile numbness—a recipe for a tough-to-defend malpractice case.

The Malassezia yeasts are … reported as part of the microflora of male genital region, mostly in uncircumcised males. The prevalence of Malassezia yeast colonization on the glans penis of circumcised males is discussed in multiple studies. We report the case of a male patient with extensive pityriasis versicolor that does not involve the preputial space.

We present a comprehensive account of clitoral anatomy, including its component structures, neurovascular supply, relationship to adjacent structures (the urethra, vagina and vestibular glands, and connective tissue supports), histology and immunohistochemistry. We related recent anatomical findings to the historical literature to determine when data on accurate anatomy became available.

Six experts review the evidence and disagree about whether the G-spot is real: “Although a huge amount of data (not always of good quality) have been accumulated in the last 60 years, we still need more research on one of the most challenging aspects of female sexuality.

Development of pelvic surgery finds its roots in the Ebers papyrus (1550 BC) and evolved from Hippocrates (400 BC) who used pessaries with pomegranate to reduce uterine prolapse. Other maneuvers were also used. Vesalius was the first to provide a detailed description of the entire female genital tract. Adolf Retzius defined the boundaries of the prevesical space in 1849. The current concepts regarding the etiology of cystocele were proposed in 1912.

Dickless wonders: “Though male wasp spiders have testes that produce sperm, they lack penises. Instead, the arachnids ejaculate into a small web and then store this sperm in special forelegs called pedipalps, which “look like boxing gloves,” said Schneider.

Female damselflies turn butch to dissuade pesky males

Whale threesome!

Women more aroused by monkey sex than men are

Oxytocin turns out to be the hormone of the clan, not of universal brotherhood. Psychologists trying to specify its role have now concluded it is the agent of ethnocentrism.

Bless their hearts o’ gold: “Still other prostitutes, such as Klee herself, focus on providing sex for seniors in retirement homes or for the disabled – an area the BSD spokeswoman said she expects to grow swiftly as Germany’s population ages.

Major League Whore (such a harsh word) trading cards

Oregon State has some odd values

Queen Shagshag, Babylonian whores and New Zealand transsexuals

Jaye Davidson in The Crying Game

After being examined by not one, but two, physicians, an Australian named Norrie has become the first person to receive an official gender classification of ‘Not Specified.’ That suits Norrie fine.

Women’s tears kill men’s sexual desire

Prevalence of transsexualism among New Zealand passport holders

The increasing prevalence of male-to-female (MtF) transsexualism in Western countries is largely due to the growing number of MtF transsexuals who have a history of sexual arousal with cross-dressing or cross-gender fantasy. Ray Blanchard proposed that these transsexuals have a paraphilia he called autogynephilia, which is the propensity to be sexually aroused by the thought or image of oneself as female.

Blanchard (1991) proposed the existence of … erotic target location errors (ETLEs), involving the erroneous location of erotic targets in the environment. ETLEs can involve preferential attention to a peripheral or inessential part of an erotic target, manifesting as fetishism, or mislocation of an erotic target in one’s own body, manifesting as the desire to impersonate or become a facsimile of the erotic target.

Transsexuals tended to place more importance on partner’s physical attractiveness and reported higher scores on Blanchard’s Core Autogynephilia Scale than biological females. In addition, transsexuals classified as autogynephilic scored significantly higher on Attraction to Feminine Males, … Fetishism, Preference for Younger Partners, Interest in Uncommitted Sex, Importance of Partner Physical Attractiveness, and Attraction to Transgender Fiction than other transsexuals and biological females.

Ray Blanchard … has proposed a theory that links the sexual orientation of male-to-female transsexuals with the presence or absence of autogynephilia (erotic arousal by the thought or image of “himself” as a woman). … Key studies on which the theory is based will be analyzed and alternative interpretations of the data presented. I conclude that although autogynephilia exists, the theory is flawed.

[Researchers] generally find that men tend only to be aroused by stimuli that match their declared sexual preferences and subjective feelings, whereas women tend to be aroused by a broad array of sexual material … irrespective of their declared preferences and subjective feelings. A new study … tests the claim … that this pattern of responding in women is an evolutionary vestige which served in the past to protect women from the genital injury that can come from unwanted sex.

Natasha Vargas Cooper: “[T]he egalitarian view of sex, with its utopian pretensions, offers little insight into the typical male psyche. Internet porn, on the other hand, shows us an unvarnished (albeit partial) view of male sexuality as an often dark force streaked with aggression.

From Jerome Robbins' "The Cage"

Angela Carter: “Sexual relations between men and women always render explicit the nature of social relations in the society in which they take place and, if described explicitly, will form a critique of those relations, even if that is not and never has been the intention of the pornographer.” (Quoted on p. 40 of Lynn Hunt’s “Introduction” in The Invention of Pornography)

For people who regarded fertility as sacred and essential to their own survival, the caring for the gods included, in some cases, offering them sexual services. Thus, a separate class of temple prostitutes developed. … There is historic evidence of religious leadership by royal women. Two of these were Queen Baranamtarra (ca. 2350 B.C.) and her successor Queen Shagshag of Lagash. In the Old Babylonian period, the daughters of kings and rulers were appointed as high priestesses of the Moon-God or of the goddess Ishtar.More about Queen Shagshag and her friends

The image of the whore of Babylon in Rev 17-18 has often been used to support the idea of the prostitute as the ultimate sinner. This attitude may be contributing to a lack of involvement by Christians in counteracting contemporary sex-trafficking.

This article attempts to read the image of Babylon the Whore in Revelation 17—18 from a postcolonial feminist point of view, assuming that Revelation is written in the context of Roman imperialism with a patriarchal mindset.

The mathematics of beauty

Farrah

The near-zero gravity of Earth orbit may do serious harm to the male and female reproductive systems, the University of Kansas Medical Center biologist [Joe Tash] has discovered. Sperm counts drop. Egg-producing ovary cells waste away.

Internal fertilization and live birth may have begun millions of years earlier than we thought

According to the US Geological Survey, intersex, the presence of both male and female characteristics within the same fish, is being observed in fish in more streams across the nation.

Our previous study in frogs demonstrated that chemically-induced intersex animals can display different hepatic profiles of transcript levels than normal animals. In this study, we extend the observations to the developing frog brain.

The objective of the present work was to determine if visual depictions of the vulva differed according to their source …. A comparative analysis was conducted by measuring (a) … materials from human anatomy textbooks …, (b) feminist publications … depicting vulval morphology and (c) online pornography …. [L]abial protuberance was significantly less … in images from online pornography compared to feminist publications.

Humane images: visual rhetoric in depictions of atypical genital anatomy and sex differentiation

The bed bug … has a unique mode of copulation termed “traumatic” insemination … during which the male pierces the female’s abdominal wall with his external genitalia and inseminates into her body cavity …. We conclude that traumatic insemination is probably a coercive male copulatory strategy that results in a sexual conflict of interests.

The patient, a man in his late twenties, reported a periodic desire to be injured by a woman operating an automobile. This wish, present since adolescence, he had by dint of great ingenuity and effort, gratified hundreds of times without serious injury.


Black exotic dancers: undervalued and underpaid

Drawing heavily on the actual experiences of sex workers, Sex Work Matters: Exploring Money, Power, and Intimacy in the Sex Industry, edited by Melissa Hope Ditmore, Antonia Levy, and Alys Willman, features a collection of 14 essays on a diverse set of topics related to sex work.

This work argues that a reformulated capability approach expands the horizons established in earlier and contemporary classical rights-based approaches to gay rights and reproductive rights, by raising the threshold from recognizing an individual’s right to non-interference against the state or other entities to recognizing a shared responsibility to support everyone’s capacity to fulfill their potential.

Barnacle penises: “Naturally, where there are giant penises, there are experts who dedicate their lives to the study of giant penises.

‘When you got nothing to do, you do somebody’: A community’s perceptions of neighborhood effects on adolescent sexual behaviors.

Does the slut gene exist?

Homer Bostwick, Ernst Gräfenberg, and the Excessive Machine

Barbarella in the Excessive Machine

I’ve been skimming through an 1847 book by Dr. Homer Bostwick called A treatise on the nature and treatment of seminal diseases, impotency and other kindred affections, with practical directions for the management and removal of the cause producing them; together with hints to young men (that link is to the whole book on Google — on pp. iv and v of which you’ll see the hand of the woman who scanned in the book — she has … um … prophylactic rubbers on her fingers).

It’s a hard-hitting tract on the evils of masturbation that would do Christine O’Donnell proud. On p.46, while describing the horrific effects of masturbation, Dr. Bostwick says, “The testes have dwindled away, and the penis has become small, and to the touch conveys a cord-like feeling.” He then adds that, “Indeed, nervous twitchings of the eye-lids, head, and limbs, are occasional consequences of long continued masturbation.” The condition of the un-regenerate wanker degenerates until (by p. 47),

He is finally either hurried to a premature grave … or, insanity, taking the hopeless form of dementia, has removed him … to the mad-house. It is safe to say, that of all the cases of incurable insanity, a large majority are caused by involuntary seminal emissions, or by masturbation.

Later, Dr. Bostwick recounts some cases from his own practice. Though much of the book focuses on men, Dr. Bostwick includes some cases involving female patients. Thus, on pp. 208-210, he quotes a young widow, Mrs. R., who — though she lived in the northeast — I like to imagine as speaking in a southern accent:

Before my marriage my imagination was wrought up to the highest points by connubial enjoyments. The venereal appetite was first excited by novels, love stories, theatrical representations, gay parties, etc. … So strong were my passions, that it was with the greatest difficulty that I could conduct myself in a decorous and lady-like manner in the presence of the other sex …. I acknowledge, with shame, that I practised self-abuse both before and after marriage …. If I cannot be relieved of this agonizing condition, I am certain that the struggle between my moral sense and lascivious longings must soon send me to the grave.

'Death of Onan' by Franc Lanjšček

Drastic measures are called for, since, as we have learnt from Dr. Bostwick, the young lady’s fears are all too likely to be borne out if she cannot still the dreaded hand of Onanistic passion (sorry). As a remedy for the poor dear, Dr. Bostwick, among other things, instructed Mrs. R to apply “six leeches to the os uteri, and … to throw up the vagina a decoction of poppy-heads and hops, four or five times a day.” He later “cauterized the urethra, and used the nitrate of silver, in the solid state and in solution, to the excoriated surface of the vagina and vulva” (p. 210). Happily, Dr. Bostwick reports, Mrs. R made a full recovery and re-married [because, you see, a passionate woman who masturbates is so unwell as to be unfit for marriage].

Another case (pp. 211-212) invovles Miss D, a woman “of a tall, spare, and uncomely appearance, and of filthy habits.” On examination, Dr. Bostwick discovers that,

On the inside of the right labium, there was a large growth of warty vegetations …. The urethra pouted out, and was indurated and inflamed; the clitoris was very much elongated, but it was in a dry and hardened condition.

Fear not — she, too, makes a full recovery under the doctor’s guidance.

Homer Bostwick’s other cases include a man with immense testicles who wants to be castrated and a convicted rapist who castrates himself.

Lest it be thought that Bostwick’s attitudes were an inevitable product of his age, note that little more than thirty years later, Mark Twain would pen (but not deliver) his glorious defence of masturbation, ‘Some Thoughts on the Science of Onanism‘ (which was posthumously published).

Skipping ahead several decades brings us to the inspring work of Ernst Gräfenberg (after whom the G-spot is named). Someone has devoted a whole site (with a blog) to him and his spot. The 1950 paper in which Gräfenberg posited the G-spot is on-line. It’s called ‘The Role of Urethra in Female Orgasm‘ and was originally published in the International Journal of Sexology (which was discontinued in 1955).

The G-spot is intimately bound up with female ejaculation, the controversy around which could be the basis for an opera. A tragic one, though, since the G-spot’s low profile makes it so difficult to locate.

Female ejaculation has been a topic of debate for more than 50 years. … [R]ecent careful investigations have confirmed both the existence of semen-like liquid emission and the existence of the female prostate (Skene’s glands) as its primary source.

This fluid can sometimes eject under pressure and thus resemble male ejaculation. It may presumably originate in the vagina, in the bladder (orgastic urination) or in the paraurethral (Skene’s) glands, labeled by some authors as the female prostate.

The G-spot is an ill-defined region, located on the anterior vaginal wall, in its upper outer third, suggested by Ernst Grafenberg …. The G-spot is thought to be the vaginal part that lies beneath the posterior part of the “female prostatic gland”, which, when stimulated, results in female ejaculation during orgasm.

One of the seven women reported ejaculation at orgasm …. On MRI, paraurethral glands could be visualized in six of the seven patients. There was no relation between glandular volume and ejaculation status.

Ancient Indian texts in sexology (kamaśastra) from the 11th century onwards prove that their authors knew about the area later termed the “Gräfenberg zone” in Europe, as well as about the female ejaculation connected with the stimulation of this area.

Kamasutra illustration

In ancient Asia female ejaculation was very well known and mentioned in several Chinese Taoist texts starting in the 4th century. … First mentioned in a 7th century poem, female ejaculation and the Gräfenberg spot (G-spot) are described in detail in most works of the Kāmaśāstra. In ancient Western writings the emission of female fluid is mentioned even earlier, depicted about 300 B.C. by Aristotle and in the 2nd century by Galen. Reinjier De Graaf in the 16th century provided the first scientific description of female ejaculation and was the first to refer to the periurethral glands as the female prostate.

The female ejaculate had lower levels of creatinine, but had elevated levels of prostate specific antigen, prostatic acidic phosphatase, prostate specific acid phosphatase, and glucose. … We hypothesize that female ejaculation has a unique function in producing a secretion into the urethra that provides protection from urinary tract infections (UTIs). We further predict that female ejaculate contains antimicrobial compounds including elements such as zinc.

Every woman has the right to feel sexual pleasure. … The vulva is formed by the labia majora and vestibule, with its erectile apparatus: clitoris (glans, body, crura), labia minora, vestibular bulbs and corpus spongiosum. … Knowledge of the embryology, anatomy and physiology of the female erectile organs are important in the field of women’s sexual health.

Jane Fonda in Barbarella

I have a thing for research that involves orgasms in a lab. Here are two previously cited cases. Here’s another, and now there’s this new one reported by Pharyngula:

“‘In one experiment we asked women to self-stimulate and then raise their hands each time they orgasmed. Some women raised their hands several times each session, often just a few seconds apart,’ Professor Komisaruk said.SciCurious has more about this case.

And I found this older one:

Sexual arousal by clitoral self-stimulation was used by healthy, young adult women volunteers (n =28) to induce orgasm in the laboratory. [italics added] … The mean measured orgasm duration was 19.9 seconds (SD, ± 12, n =26). For 14 subjects, their estimate of the duration of their orgasms (12.2 ± 9.8 seconds, mean ± SD) was greatly underestimated compared with the measured duration (26 ± 14.6 seconds). This result indicates that data obtained on the duration of orgasm from questionnaires or interviews have suspect validity.

More detailed examination of responses during intercourse revealed that, while female orgasms were most commonly experienced during foreplay, copulatory vocalizations were reported to be made most often before and simultaneously with male ejaculation. These data together clearly demonstrate a dissociation of the timing of women experiencing orgasm and making copulatory vocalizations and indicate that there is at least an element of these responses that are under conscious control, providing women with an opportunity to manipulate male behavior to their advantage.

More Polly-Jean:


Ducks, spiders & gluttony

Raquel Welch

Sexsomnia was reported by 7.6 percent of patients at a sleep disorders center, researchers report today.  Starting sex while asleep was more common in men (11 percent) than women (4 percent).

Australian authorities forbid soft porn from depicting the labia minora protruding outside the labia majora, which has stimulated a market for cosmetic surgery down under.

During the normal mating season, the penises of Lesser Scaup ducks grow about 4 centimeters longer than average, and those of Ruddy Ducks grow about 15 centimeters longer. But when the team made several Lesser Scaup males compete for just a few females, their penises grew up to 25% longer than normal.More here

Women and men could do that more quickly when the face had exaggerated sexual characteristics. ‘Women were quickest to classify gaze direction when they were looking at hunky, masculine-looking guys. Guys were quicker when they were looking at pretty, feminine women,’ says Jones.

Bernadette Lafont & Serge Marquand in Sophie's Ways

Are the women thereby honing in on the gaze of the guys with the best sperm? “A previous study of Spanish men reported that facial attractiveness was positively associated with semen quality. We aimed to determine whether this effect was widespread by examining a large sample of Australian men.

In Slate, William Saletan vented his disgust at the dangerous and grotesque display of gluttony that is  competitive eating, likening it to pornography (esp. in the article’s title — ‘Deep Throat: the Depravity of Major League Eating’). At Jezebel, Katy Kelleher dismissed his concerns. “Enjoying huge amounts of food or copious amounts of sex,” she says, “does not make one self-destructive, gluttonous, or depraved.” She’s right about sex but wrong about eating competitions. Since sex (safe sex) in large quantities doesn’t carry such a big health risk, there’s nothing wrong with it. In fact, it might even have the added value of boosting brain growth. Kelleher sets aside the health risks resulting from overeating by comparing them to the risks that stem from other sports. She suggests that we should just let people assume these risks if they choose to. But what about the other extreme for eating, namely, anorexia? Would she allow people to cultivate this condition, too, as long as they were aware of the resulting health risks?

For some people, good sex involves copious amounts of food: “Feederism is a fat fetish subculture in which individuals eroticize weight gain and feeding. Feeders are individuals who claim to become sexually aroused by feeding their partners and encouraging them to gain weight.

For male spiders, the health risks in mating are pretty steep. “Nephilid spiders are known for gigantic females and tiny males. Such extreme sexual dimorphism and male-biased sex ratios result in fierce male-male competition for mates. Intense sperm competition may be responsible for behaviors such as mate guarding, mate binding, opportunistic mating, genital mutilation, mating plugs and male castration (eunuchs).”

To curtail competition with their own sperm, males of several spider and insect species mutilate their genitals or sacrifice themselves entirely using their genital parts or their whole dead bodies as mating plugs. The orb-web spider, Argiope aurantia, is a species characterized by both male self-sacrifice and extreme female-biased sexual size dimorphism.

“Sexual cannibalism is common in the Australian golden orb-web spider (Nephila plumipes), in which the tip of the conductor typically breaks during copulation. … The likelihood of the conductor breaking depends upon the copulatory history of the female insemination duct: males were more likely to break their conductor if they inseminated a ‘virgin’ rather than ‘mated’ insemination duct.” (pdf)

Once he’s inseminated her, he’ll break off his genitalia in hers, thereby plugging her up. The male, which is left sterile, then drives away other males until he dies. This strategy should stymie other males’ mating attempts—though some females have been found with several dismembered male organs lodged inside them.” Very sadistic.

H. Biberstein's depiction of de Sade

‘The Enigma of the Will: Sade’s Psychology of Evil’

The end of Sex Week at The Loom

The Closing Time effect: “When it’s late in the evening, people get prettier. But they also found that, while alcohol does play some role in this aesthetic reevaluation, the correlation isn’t strong enough to completely explain it. It’s not just beer goggles; something else is going on.

Mostly about critters

http://comespywithme.blogspot.com/2008/06/spy-girl_167.html

Veruschka as some sort of bird

The best batch of Veruschka pics I’ve ever seen

From Blogfish, the top 5 underwater sex acts. On a related note, last year’s sex week in Deep Sea News.

This year’s sex week at the Loom (fungi, water striders, as well as electrically sensitive fish)

An older post highlighting weird sex acts in the animal kingdom, and another one.

A kiss before dying (or something near enough): with its dying gasp, a squid got an erection that was 67 cm long, “almost the same length as the whole body of the animal,” ejaculated, and expired.

And while it may seem odd to pose nude in front of Spock, Nimoy explains that each sitter interacted with him as an artist—effectively splitting Nimoy’s identity as an actor from the person behind the camera.Here are Nimoy’s nude photos.

In search of … the G-spot, using ultrasound during coitus

The victim was a 60-year-old man who was possibly attempting to sexually approach the animal from behind when he was struck by it, sustaining fatal blunt injuries …. Fatal trauma associated with bovines is rare on the whole, and when it does occur it is usually caused by kicking.

The reproductive system of the black swamp snake, Part 6: “The anterior testicular ducts of the North American natricine snake Seminatrix pygaea are described using light and electron microscopy.”

Mating preferences of the male praying mantis, the ‘poster boy of risky sex

Here we use a newly developed molecular technique to directly quantify mixed sperm stores in multiple mating females of the black field cricket, Teleogryllus commodus. In this species, female postcopulatory choice is easily observed and manipulated as females delay the removal of the spermatophore in favour of preferred males.

Gender bending among Alberta long dase minnows

As for the male lemurs, they started spending less time with females after they’d been dosed [with a contraceptive]. ‘It could be they’re showing less interest because the females are not showing immediately fertility. Or maybe the females just smelled weird,’ Drea said.

From 1913, the strange case of the growing bone within a human penis

Buster Keaton

The sheepdog that just couldn’t finish the job, not even with an ‘estrous teaser bitch’

It turns out that the prairie vole, once reputed to be monogamous, “will sleep with anyone.”

One of the biggest misconceptions about furries [people who wear full-body fur suits] is that they are all just a bunch of people who get together in mascot costumes and have sex. I’m not saying some people don’t do that ….

I have mixed feelings on highlighting bonobo sex life. Yes, it’s incredibly creative, and has more than once left my jaw hanging on the ground.” A review of Vanessa Woods’ Bonobo Handshake

On Philip Carr-Gomm’s new book, A Brief History of Nakedness

This article reviews research findings documenting the nature of nonverbal courtship behavior compiled through both observation and self-report methods.

Strategy, dolls and other primates

Nusch Eluard

Nusch Éluard (aka Maria Benz) More photos of her here

About those lovely Taschen books

From AlterNet: Why women pay for sex, the best movies about sex work, and the quasi-respectability of BDSM.

The ‘Godfather of masochism’ (and source of that label): “Herr Leopold von Sacher-Masoch gives his word of honor to Frau [Fanny] Pistor [aka Baroness Bogdanoff] to become her slave and …” (More links about Sacher-Masoch are in this earlier post.)

Kink as a reproductive strategy: “Kinky quails fertilize more eggs.

Sexsomnia — sexual acts while asleep — may be more common that thought

Oral sex as reproductive strategy: “Does oral sex confer an evolutionary advantage? Evidence from bats.” (Speaking of bats, here’s the Batman XXX trailer.)

Deception as a reproductive strategy: “How male antelopes lie to get more sex: with false alarm calls

Amy Marsh on “‘objectophiles,’ people who experience emotional, romantic, affectionate and/or sexual relationships with objects”

Sex Doll image from TokyoTimes.org

History of the sex doll , inc. a blurb about the WWII German sex doll, Borghild, who (despite rumors) has not been proven to be an inspiration for Barbie, although another German doll was, and that German doll has her own prurient past

The Portrayal of Women’s External Genitalia and Physique Across Time and the Current Barbie Doll Ideals

Koro: “the panic anxiety state in which affected males believe that the penis is shrinking and/or retracting, and perhaps disappearing” (ht)

Male physical competition, not attraction, was central in winning mates among human ancestors, according to a Penn State anthropologist.

Who should really be suffering from koro: “The average erect gorilla penis is 3cm (1.25 inches) long.” There’s a conflict in this linked story with the Penn State anthropologist’s theory, since the claim is made that human male’s have larger penises due to the selective pressures exerted by female preference. But I guess there can be more than one male reproductive strategy. Sadly, whichever strategy males deploy, it’ll shorten their lives.

We’re totally built for sex: According to that previous link about gorillas, human males have bigger penises than any other primates. Also, human females have bigger breasts and rounder tushes than any other primate.

A clitoris study: “The female clitoris and the male penis are really quite similar in anatomy”. From the comments there, I found a link to this intriguing story about Princess Marie Bonaparte and her studies of the vulva (with a focus on the distance between the clitoris and the vagina).

Sex tourism and … rational choice theory.

British women’s breasts are getting bigger.

Susannah Breslin on the White House’s stance on obscenity, a letter from Max Hardcore’s wife, and The tragic story of Stephen Hill

The dark side of male pregnancy …. Male pipefish selectively abort embryos from less attractive females.” I wonder how they gauged the attractiveness of female pipefish?

The Erotic Awards 2010: “Writers included Ernesto the Naked Poet – the pen name of a Basque cognitive scientist who describes his insecurities about his penis and then recites his work, naked.”

Claire Finch was tried for running a brothel in a sleepy village in Bedfordshire.

Lists, G-spots and retro tumblrs

ht Sushi Girls tumblr

Violet Blue’s list of ‘End of year sex lists’

Biggest politician sex scandals of the decade

Tracy Quan on branding sex scandals

Dr. Petra’s predictions for 2010

A tumblr of Louise Brooks pics

A tumblr with pics and bios of Weimar babes

At LiveJournal, sensen’s gallery of amazing Margaret Nolan (aka Vickie Kennedy) pics

Early 20th-Century lesbian postcards

G-spots don’t exist

But maybe they do

Bouncy go-go dancers (ht The Lazy World of Arthur Ignatowski):