The biological compatibility created by complementary immune systems apparently promises better orgasms, a lower likelihood of cuckoldry, more happiness and so on.

互補(bǔ)的免疫系統(tǒng)創(chuàng)造出來(lái)的生物相容性明顯得確保了更好的性高潮和性歡愉還有出軌的低可能性等等精品视频二区。

But since you're wondering, it is possible for women to have what's known as "extragenital orgasms"--orgasms without genital contact, says Beverly Whipple, Ph.D., professor emerita at Rutgers University and co-author of The Science of Orgasm.

Orz 第一句不懂他用的典故处女福利视频，又查不到国产美女网在线看，沒(méi)法翻囧）不過(guò)既然你困惑不解：《高潮背后的科學(xué)》的其中一位合著者欧美日韩a√播放三区，美國(guó)羅格斯大學(xué)的貝瓦莉·韋伯教授指出真人一级黄色视频，女性有可能經(jīng)歷所謂的"非生殖高潮"——即不通過(guò)生殖器接觸達(dá)到的性高潮日韩在线观看午夜福利中文。

These compounds are useful for the treatment and/or prevention of sexual dysfunction, for example female sexual dysfunction, in particular female sexual arousal disorder, hypoactive sexual desire disorder (HSDD; lack of interest in sex), female orgasmic disorder (FOD; inability to achieve orgasm); and male sexual dysfunction, in particular male erectile dysfunction.

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Studies such as that by Dr Alfred Kinsey have found that 75% of men reach orgasm within two minutes of penetration, and that the average duration of a mans orgasm is 3-5 seconds.

研究指出国产干干干日日日，如由阿爾弗雷德金賽博士發(fā)現(xiàn)， 75 ％的男性達(dá)到性高潮的兩分鐘內(nèi)的普及程度亚洲综合AⅤ一区二区三区导航，以及平均時(shí)間一man s高潮是3-5秒综洲合亚洲视频。

Head and neck muscles often tighten during sexual activity, and blood pressure can increase at orgasm, causing blood vessels in the brain to dilate, a condition technically named coital cephalgia.

在性活動(dòng)中，頭部和頸部的肌肉通常會(huì)收縮女生啪啪视频，而性高潮時(shí)血壓會(huì)增高欧洲黄色在线播放视频。這些情況會(huì)導(dǎo)致大腦中的血管擴(kuò)張，在學(xué)術(shù)上這種情況被稱(chēng)為&性交性頭痛&欧美一级鲁片一区二区三区。

Is especially in sexual contact in coital process, whether to produce normal sexual reaction no matter, still last or lack the subjective feeling of world excitement and sexual pleasure to suffer repeatedly, although some women appear orgasm reaction, also recount devoid sex pleasure and sex to satisfy.

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The symptoms includes prostatits, prostate hyperplasia, prostatomegaly, impotence, ejaculatio, gonacratia, sexual aversion disorder, aphrodisiac, sexual arousal disorder, orgasmic disorder, coital ache, renal insufficiency and so on.

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Some men get so used to the hard, fast strokes thatthey have trouble climaxing with a partner, says Barbara Keesling,Ph.D., a sex therapist and author of Super Sexual Orgasm.

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Frigidity.(lat. coldness) This vague, denigrating term was formerly used to refer to a lack of orgasm in women or their lack of sexual excitement or generally the absence of female sexual interest.

性冷這個(gè)含糊的欧美一级网页、詆毀人的術(shù)語(yǔ)從前用來(lái)指女性缺乏性高潮精品国产免费观看一，或缺乏性興奮，或總體上缺乏性興趣亚洲欧美激情小说。

But since you're wondering, it is possible for women to have what's known as "extragenital orgasms"--orgasms without genital contact, says Beverly Whipple, Ph.D., professor emerita at Rutgers University and co-author of The Science of Orgasm.

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