Shadows, Kotzwara & Eunuchs

Margo Lion

First recorded case of death by kink? Franz Kotzwara in 1791 (more)

All you ever wanted to know (or not) about erotic asphyxiation but never even dreamt of asking. Mistress Matisse says it isn’t for novices

The Washington Post’s Carolyn Butler on the Indiana sex survey

Do prostitutes enjoy sex with their clients?

Female sex tourists? Strictly speaking, they seldom pay for sex. But they do offer their holiday ‘boyfriends’ money, gifts, a new house, etc.

Modifications induced by dopaminergic drugs in patients with Parkinson’s disease (PD) are … not taken into sufficient consideration …. Modifications of sexual urges and behaviours are of particular importance …. Although rare, such modifications may assume the connotations of an aberrant sexual behaviour with criminal implications, in line with a diagnosis of paraphilia. The authors report the case of a 51-year-old male PD patient who … developed … frotteurism and delusional jealousy.

Delusional jealousy or Othello syndrome (OS) is a … disorder with paranoid features …. In organic psychoses, the disorder occurs more frequently among chronic male alcoholics and in demented patients. … Six patients with OS were identified. They were all male, with a relatively recent diagnosis of PD.

Men viewed the opposite sex for a significantly longer period than did women, and women viewed their own sex for a significantly longer period than did men. However, gaze times for the clip showing intercourse were not significantly different between sexes.”

Women near ovulation (when they’re most fertile) report that they’re more easily turned on and have more interest in sex. They also tend to have redder lips! By putting on reddening lipstick, women are accentuating a natural signal of fertility.

This suggests that physical attractiveness may enhance distinctive accuracy both because consensually attractive targets provide better information than less-attractive targets, and because perceivers pay more attention to them and are more motivated to understand them.

Overall, 96% of the participants reported post-orgasmic clitoral hypersensitivity and a comparable percentage indicated aversiveness to further post-orgasm clitoral stimulation.

Joggers have more active sex lives

Farrah Fawcett & Lee Majors

The 17-year-old daughters and sons of lesbian mothers were rated significantly higher in social, school/academic, and total competence and significantly lower in social problems, rule-breaking, aggressive, and externalizing problem behavior than their age-matched counterparts in Achenbach’s normative sample of American youth.

Well-organised men, especially from twenty to thirty-five years of age, who remain absolutely free from sexual intercourse or any other causes of expenditure of seminal fluid, are in a state of excitement, giving them a great, although abnormal, physical and mental activity.

Serge Voronoff put monkey ovaries into women and tissue from monkey testicles into men

Bush crickets have the biggest testes: “Delicate measurements of the tuberous bush cricket, Platycleis affinis, showed that its testes accounted for 14% of the insect’s body weight. If the same proportion were applied to a man, his testicles would weigh the equivalent of six bags of sugar each.” Why indicate weight in terms of bags of sugar?

Particularly illuminating is her account of 19th-century Western reactions to Katsushika Hokusai’s erotic woodblock print “The Dream of the Fisherman’s Wife,” in which two octopi pleasure a naked woman with their tentacles. … If only the critics had been able or willing to translate the Japanese text …. There, Ms. Kawaguchi notes, they would have learned that the woman is ecstatic, even praising one of the octopi for its superior sexual skills.

More women opt for vaginoplasty and labioplasty down under

Your mind is less likely to wander during sex

Biotechnological opportunities have immense significance … in that they invalidate ‘eternal’ limitations of sex, procreation and embodiment. An explanatory concept, generative identity, is postulated, to account psychologically for the increasing diversity of reproductive patterns. … Disturbances in generative identity manifest as unconscious ‘shadows’ expressed as inhibitions to creative agency [etc.]

Photo of Assia by Dora Maar (1933)

To explain the existence of female orgasm in an evolutionary context, then, biologists have two options: (1) discover a way in which female orgasm shapes reproductive success indirectly, or (2) conclude that female orgasm isn’t an adaptation.

A batch of links to orgasm studies

Now to my mind, this wasn’t a perfect study: they compared ejaculate in 52 heterosexual men looking at pornography with two men and one woman, against pornography with three women, whereas I think it would have been better to use comparison images with one man and one woman, but there you go. … Yamamoto and colleagues … studied 19 men masturbating into a jar, either alone … or with “sexually stimulating videotaped visual images” at hand. Sperm volume, total sperm count, sperm motility, and percentage of morphologically normal sperm were all higher when the men had pornography.

Techniques for training boars for semen collection

Do men with deep voices have more children?

Well it’s about bloody time! India starts paying its eunuchs

Ten robots you can date,’ with links for each one

Rocco Siffredi interviewed

Abbey Lee Kershaw photos in Vogue Italia

Schéhérazade, Sir Henry Head and the Ladybirds

Cover for an LP by Scheherazade

I wish I knew what artist made this cool cover for a recording by a Japanese band called Scheherazade. I hit upon it while looking for images of the ballet Scheherazade, based on Rimsky-Korsakov’s music. The choreographer was Michel Fokine. The ballet’s first performance starred Ida Rubinstein and Vaslav Nijinsky.

Findings from the National Survey of Sexual Health and Behavior (a 140-page pdf)

There has been a transition for women in direction towards a stereotypically ‘male’ personality profile, but not at the expense of traditionally socially important female traits. Comparisons in psychological profile subscales showed an increase in dominance, exhibition, aggression and achievement.

Using … data from a high-fertility polygynous human population of Senegal, we first show that extraversion, a personality dimension predicting men’s mating behavior in this population, is associated with inter-individual differences in testosterone profiles, with men in the top quartile of extraversion distribution having 29% higher testosterone levels.

This study conducts an exploratory investigation of various post-coital behaviors that the authors propose may reflect the divergent adaptive reproductive strategies of each sex as understood from an evolutionary perspective.

What the presence of attractive young women can do to men

The scientific case for masturbation — 4 theories about its adaptive function

The best cover for a Scheherazade LP or cd, c. 1963.

A recent study suggests that daily masturbation and ejaculation can reduce the amount of accumulated DNA damage in sperm by 12%.  Therefore wasting sperm into a sock can actually improve the mobility of sperm and increase fertility.Here’s the study

Some history of masturbation: “Freud famously concluded a 1912 symposium on masturbation for the Psychoanalytical Society in Vienna by saying, ‘I think the time has come to break off. For we are all agreed on one thing–that the subject of masturbation is quite inexhaustible.’

Mind Hacks posted on erotic asphyxia. Here’s a review of the literature on autoerotic deaths between 1954 and 2004. Here’s a pdf of the first paper that I could find on this topic (in the British Medical Journal, 1960). After a gruesome description of the circumstances in which four men had died, the authors venture a Freudian hypothesis — somehow, the men wrapped themselves in plastic in order to simulate a return to the womb. (!) Then the authors make a more sensible claim: “A much less elegant and more superficial explanation is that these people were trying to achieve some undifferentiated thrill or excitement from partial suffocation or anoxia. This factor may have existed but it does not explain the transvestism, sexual arousal, or complete enclosure of the body. It is an interesting reflection that the sexual impulse in man is so protean in its manifestations that a technical advance resulting in a new packaging material can result in a new perverse manifestation.”

Here are some more recent (but equally sad) cases involving less typical autoerotic causes of death: “These modalities include ligature around the thorax or abdomen, plastic bags covering the face, electrical current, inhalation of a toxic gas or chemicals, or partial or total submersion, known as aquaerotic asphyxiation. This study highlights 11 cases of atypical autoerotic death, including asphyxia with a plastic bag, electrocution, and inhalation of butane and nitrous oxide (N2O).” Two more atypical cases: “We here report the case of a 34-year-old man who died due to asphyxia, secondary to body wrapping in the largest and most complex plastic bag ever involved in a published case of autoerotic death“; and “Unusual death of a 24-year-old man, involving propane inhalation and plastic bag suffocation, is described.

Back to a less depressing topic: You get a sense of the erotic nature of Scheherazade from this review of a perfomance by Anna Kisselgoff in the NY Times (Jan. 18, 1981). Kisselgoff summarizes part of the narrative as follows: “The wives bribe the chief eunuch to release the slaves who spring out to make love to the women. The leader of the orgy is Zobeide’s ‘golden slave’ …. It is common to think of ‘Scheherazade,’ with its frank acknowledgement of sexual passions, as an early expression of Freud’s century. To most Anglo-Saxon audiences at the time, it was inconceivable that a powerful queen would bother with a black slave. Russians brought up on tales of Tartar harems and white princesses had no trouble with the idea.” Here’s Yvonne de Carlo as she appeared in a 1947 movie called Song of Scheherazade.

Yvonne de Carlo in Song of Scheherazade (1947)

Based on the results of my study, there is a percentage of women (just over 30 percent) who feel powerful when performing fellatio. Apparently some women find it empowering and believe that it can wield a lot of power.

Sir Henry Head’s self-experimentation: “We then discovered that the glans penis responded to cutaneous stimuli in that peculiar manner with which we were already familiar from our study of the first stage of recovery after nerve division. … When … [the tip] was dipped into water at 40° C, no sensation of heat was produced, but [Head] experienced an unusually disagreeable sensation of pain. … But, as soon as the water covered the corona without reaching the foreskin, both cold and pain disappeared, giving place to an exquisitely pleasant sensation of heat.

For women not using hormonal birth control, it would appear that some information regarding female fertility appears to be encoded in gait.

Women with higher estradiol levels in the peri-ovulatory and luteal phase of the menstrual cycle were correlated with higher senses of desirability and a lower relationship commitment in women.” But SciCurious has objections.

Yvonne de Carlo in her most famous role as Lily Munster

In a study of 443 women, a pair of British researchers discovered that women were more likely to make impulsive purchases during the weeks between ovulation and menstruation, known as the luteal phase of the menstrual cycle.Here’s the study

Now let’s look a little deeper into the action of those neurotransmitters [dopamine and oxytocin] and how we can manipulate their action to extend the neurological orgasm for as long as possible.

A device for accurate breast volume measurements

William Saletan on anal sex

Angus McLaren, an academic explorer of the history of sexuality

A woman’s race/ethnicity and socioeconomic status impact whether health care providers recommend one of the most highly effective forms of contraception.

On Carl Djerassi, inventor of the pill

Vogue‘s first celebrity models

Alexander Lee’s ‘Short History of Desire

A list of abortions in literature

More about the trial of Lady Chatterley’s Lover

Depicting the harem as a home rather than as a sexual prison, books written by women from the progressive elite of late Ottoman society challenged the prevailing stereotype of harem women as ignorant, indolent odalisques whiling away their days awaiting their lord and master.

Ida Rubinstein in Scheherazade (1910) .jpeg by M. Evans & Theatrex

Male bonobos need their mommies to help them hook up with female bonobos

The male [chimpanzee] will pluck a leaf, or a set of leaves, and sit so the female can see him. He spreads his legs so the female sees the erection, and he tears the leaf bit by bit … dropping the pieces as he detaches them. Sometimes he’ll do half a dozen leaves until she notices. … [S]he sees the erection and puts two and two together, and if she’s interested, she’ll typically approach and present her back side, and then they’ll mate.

Exposure to a chemical found in food packaging and other plastics, BPA, can reduce the quality of men’s semenMore here

A non-stick coating for a substance found in semen dramatically lowers the rate of infection of immune cells by HIV

Female boa constrictors can reproduce without mating: “Large litters of all-female babies produced by the “super mom” boa constrictor show absolutely no male influence — no genetic fingerprint that a male was involved in the reproductive process.

But there is an interesting property of sea squirt pornography and local oceanography that may have consequences in the debates surrounding marine reserve design.

The Ladybirds: the world’s first and only all-girl topless band‘; more here.