Analysis of information sources in references of the Wikipedia article "Orgasm" in English language version.
The amount of time of sexual arousal needed to reach orgasm is variable — and usually much longer — in women than in men; thus, only 20–30% of women attain a coital climax. b. Many women (70–80%) require manual clitoral stimulation...
A few women can even experience orgasm from breast stimulation alone.
In homosexual relations, most men do not reach orgasm in receptive anal intercourse, and a number report not reaching orgasm by any method in many of their sexual relationships, which they nevertheless enjoy.
There are some females who appear to find no erotic satisfaction in having their breasts manipulated; perhaps half of them derive some distinct satisfaction, but not more than a very small percentage ever respond intensely enough to reach orgasm as a result of such stimulation (Chapter 5). [...] Records of females reaching orgasm from breast stimulation alone are rare.
Most women report the inability to achieve orgasm with vaginal intercourse and require direct clitoral stimulation ... About 20% have coital climaxes...
Areola corrugation immediately after orgasm physically signals that orgasm has occurred
Left and right parietal EEGs were recorded while seven subjects experienced sexual climax through self-stimulation
Examination of the literature shows little agreement among reported results of studies of EEG changes during orgasm.
Most women report the inability to achieve orgasm with vaginal intercourse and require direct clitoral stimulation ... About 20% have coital climaxes...
Left and right parietal EEGs were recorded while seven subjects experienced sexual climax through self-stimulation
Examination of the literature shows little agreement among reported results of studies of EEG changes during orgasm.
Areola corrugation immediately after orgasm physically signals that orgasm has occurred
Left and right parietal EEGs were recorded while seven subjects experienced sexual climax through self-stimulation
Examination of the literature shows little agreement among reported results of studies of EEG changes during orgasm.
A few women can even experience orgasm from breast stimulation alone.
In homosexual relations, most men do not reach orgasm in receptive anal intercourse, and a number report not reaching orgasm by any method in many of their sexual relationships, which they nevertheless enjoy.