He felt certain for the first time in his teaching experience that the men in the class understood that orgasm, as a criterion, is not nearly so essential for a satisfying female sexual experience as most males might think.

This can have important consequences when dealing with issues such as consensual sadomasochistic sexual activity, the most notable case being the Operation Spanner case.

Buddhist monks and nuns of most traditions are expected to refrain from all sexual activity and take vows of celibacy ; lay people, however, are not expected to refrain from any specific form of sexual activity, and there is no concept of sinfulness attached to sex.

The ancient historians allege that Messalina was a nymphomaniac who was regularly unfaithful to Claudius — Tacitus states she went so far as to compete with a prostitute to see who could have the most sexual partners in a night — and manipulated his policies in order to amass wealth.

The clitoris is the human female's most sensitive erogenous zone and the primary source of female sexual pleasure.

The view was most widely promoted in a book published by Dr. William Crook that hypothesized a variety of common symptoms such as fatigue, PMS, sexual dysfunction, asthma, psoriasis, digestive and urinary problems, multiple sclerosis, and muscle pain could be caused by subclinical infections of C. albicans.

In October 2009, the Commission on Military Justice, known as the Cox Commission, repeated its 2001 recommendation that Article 125 of the Uniform Code of Military Justice, which bans sodomy, be repealed, noting that " most acts of consensual sodomy committed by consenting military personnel are not prosecuted, creating a perception that prosecution of this sexual behavior is arbitrary.

The most significant of these adaptations are 1. bipedalism, 2. increased brain size, 3. lengthened ontogeny ( gestation and infancy ), 4. decreased sexual dimorphism.

Films of little artistic value, these comedies reached their popularity by confronting Italian social taboos, most notably in the sexual sphere.

Foot fetishism is the most common form of sexual fetish.

In most cultures, it is socially disapproved for a person to make explicitly sexual advances, but indirect or suggestive advances ( i. e., flirting ) may at times be considered acceptable.

Hadrian had a close relationship with a Bithynian Greek youth, Antinous, which was most likely sexual.

The most powerful of these forces are the Honored Matres, a violent society of women bred and trained for combat and the sexual control of men.

The consensus of psychologists is that sexual orientation, in most individuals, is shaped at an early age and is not voluntarily changeable.

According to the American Psychological Association ( APA ), there are numerous theories about the origins of a person's sexual orientation, but some believe that " sexual orientation is most likely the result of a complex interaction of environmental, cognitive and biological factors ," and that genetic factors play a " significant role " in determining a person's sexuality.

In Western usage, yaoi is distinguished from shōnen-ai ( literally, " boy-love "), in which two males merely express romantic feelings for each other without actually having sexual relations ; however in current Japanese usage this term most commonly refers to pornographic shotacon for men.

There is no evidence that sexual selection would proceed to such a drastic extent over a million years ago when a full, lush coat of hair would most likely indicate health and would therefore be more likely to be selected for, not against, and not all human populations today have sexual dimorphism in body hair.

While some might argue that, by this logic, humans should also express hairy shoulders given that these body parts would putatively be exposed to similar conditions, the protection of the head, the seat of the brain that enabled humanity to become one of the most successful species on the planet ( and which also is very vulnerable at birth ), was arguably a more urgent issue ( axillary hair in the underarms and groin were also retained as signs of sexual maturity ).

For example, sexual activity with a person below some age of consent and sexual assault in general are criminal offenses in most jurisdictions.

As with other behaviors, human intelligence and social complexity have yielded the most complicated sexual behavior of any animal.

For example, though most religions disapprove of extramarital sexual relations, it has always been widely practiced.

On chemical grounds it seems most likely that iodide is first converted to Af and then to Af as the active iodinating species.

In the adult state they have tear ducts and movable eyelids and most species have ears that can detect airborne or ground vibrations.

Although most species are associated with water and damp habitats, some are specialised to live in trees and in deserts.

The suborder Neobatrachia is by far the largest group and includes the remaining families of modern frogs, including most common species.

In addition, most species of amphibian have granular glands that secrete distasteful or poisonous substances.

Larvae and most aquatic adult amphibians excrete the nitrogen as ammonia in large quantities of dilute urine while terrestrial species, with a greater need to conserve water, excrete the less toxic product urea.

In air, where oxygen is more concentrated, some small species can rely solely on cutaneous gas exchange, most famously the plethodontid salamanders, which have neither lungs nor gills.

In many species of frog and in most lungless salamanders ( Plethodontidae ), direct development takes place, the larvae growing within the eggs and emerging as miniature adults.

Tadpoles do not have true teeth but, in most species, the jaws have long, parallel rows of small keratinized structures called keradonts surrounded by a horny beak.

In most species, the sound is produced by expelling air from the lungs over the vocal cords into an air sac or sacs in the throat or at the corner of the mouth.

Although in many frog species, females are larger than males, this is not the case in most species where males are actively involved in territorial defence.

One seed-to-seed life cycle for an annual can occur in as little as a month in some species, though most last several months.

Thus although most species in the order are herbaceous, some no more than 15 cm high, there are a number of climbers ( e. g. some species of Asparagus ), as well as several genera forming trees ( e. g. Agave, Cordyline, Yucca, Dracaena ), some of which can exceed 10 m in height.

The order is a cosmopolite ( plants found throughout most of the world including desert and frigid zones ), and includes mostly herbaceous species, although a small number of trees ( such as the giant Lobelia and the giant Senecio ) and shrubs are also present.

Although most extant species of Asteraceae are herbaceous, the examination of the basal members in the family suggests that the common ancestor of the family was an arborescent plant, a tree or shrub, perhaps adapted to dry conditions, radiating from South America.

** Eunectes beniensis, the Bolivian anaconda, the most recently defined species, is found in the Departments of Beni and Pando in Bolivia.

However, this name is used to refer to the brown vine snake, Ahaetulla pulverulenta, a slender, arboreal species that grows to five feet ( 152 cm ) at most and feeds only on small vertebrates.

A number of species have come to be considered invasive, including, most notably in North America, dandelion, which was originally introduced by European settlers who used the young leaves as a salad green.

The abbey is a species of " exempt religious " in that it is, for the most part, answerable to the Pope, or to the abbot primate, rather than to the local bishop.

The most comprehensive treatment of the family considers 56 species valid, with 18 additional subspecies.

The Andes is rich in fauna: With almost 3, 500 species, of which roughly 2 / 3 are endemic to the region, the Andes is the most important region in the world for amphibians.

Resin from the extinct species Hymenaea protera is the source of Dominican amber and probably of most amber found in the tropics.

The largest species are red alder ( A. rubra ) on the west coast of North America, and black alder ( A. glutinosa ), native to most of Europe and widely introduced elsewhere, both reaching over 30 m. By contrast, the widespread Alnus viridis ( green alder ) is rarely more than a 5 m tall shrub.