Anal contractions orgasm

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Eleven nulliparous women manually self-stimulated to orgasm, each on three separate occasions. Pelvic contraction pressure was measured by an anal probe and a vaginal probe simultaneously. Near the perceived start of orgasm, a series of regular contractions began in nine of the women. Anal and vaginal contraction waveforms were synchronized with each other, and the same number of orgasmic contractions occurred in each lumen.
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The male orgasm: Pelvic contractions measured by anal probe

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The female orgasm: pelvic contractions. - Abstract - Europe PMC

Vaginal contractions are contractions of the pelvic muscles surrounding the vagina , especially the pubococcygeus muscle. Vaginal contractions are generally an involuntary muscular response to sexual stimulation , including sexual arousal , and are commonly most intense during sexual stimulation and culminating in orgasm. Though usually an involuntary response, some women can control the muscles of the vagina to perform vaginal contractions at will. Vaginal contractions enhance the sexual experience and pleasure for both parties during sexual intercourse. In a study, pelvic contractions of 11 women who manually self-stimulated to orgasm were monitored using an anal probe and a vaginal probe simultaneously. Near the perceived start of orgasm, a series of regular contractions began in 9 of the women, with anal and vaginal contractions synchronizing with each other. Three of the women's orgasms consistently included only a series of regular contractions; for six other women, orgasms consistently continued beyond the regular series with additional irregular contractions.
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The female orgasm: pelvic contractions.

Either your web browser doesn't support Javascript or it is currently turned off. In the latter case, please turn on Javascript support in your web browser and reload this page. Read article at publisher's site DOI : Butler CA.
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Pelvic muscle contractions during sexual response can be monitored conveniently by the anal probe method described. Eleven young adult male subjects were each recorded for three sessions of masturbation to orgasm. Electrical signals from an anal pressure probe were automatically digitized by computer.
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