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In several cultures all over the world, vaginal sex is what is frequently implied when folks make reference to 'getting intercourse' or 'sexual intercourse'. It's the most often examined habits and is usually the focus of sexuality education and learning programming for youth.
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.. The widespread, unquestioned equation of penile–vaginal intercourse with sex reflects a failure to examine systematically 'if the respondent's idea of the question matches exactly what the researcher had in your mind.'
This 'coming alongside one another' is generally comprehended in heteronormative terms because the penetration of a girl's vagina by a man's penis.
Nancy W. Denney; David Quadagno. Human Sexuality. Mosby-Year E-book. 2008: 273. ISBN 0801663741. Although the phrase intercourse is usually used to confer with the insertion of your 性爱 penis into the vagina, It is additionally used to confer with oral intercourse or anal intercourse during which the penis is inserted into the mouth or maybe the anus, respectively.
大自然孕育人類，從不希望人類在懷孕的時候停止性愛活動。有些女人最棒的性愛體驗就是在懷孕期間享受到的；有些女人懷孕後就完全不想做愛。結論就是：問清楚她的感覺。一位女性說道：「我真的很懷念懷孕時期的性愛，那時很容易達到高潮。現在離生產已經過了十個月，要達到高潮困難許多了。」但另外一方面，也有女人因為晨間嘔吐或者身體不適，並不希望男人進入體內。同樣的，一切都要看她的決定。一般來說，在懷孕初期，男上或女上體位都沒問題，但等到女人肚子變大以後，這些體位會越來越困難。在懷孕後期時，側邊（體位A和體位C）和坐跪（體位A和體位B）都是不錯的選擇。這樣一來，雖然你不在上位，但仍能緊密結合。側邊體位（C）這種常見的湯匙狀體位效果不錯，因為她的肚子可以有個支撐，而且深入的插入也不太可能。在非常晚期的懷孕階段時，有些人較喜歡坐姿，至於是朝向側面或者面對著對方，就看女人的肚子大小而定。
炮友能不能變情人？請先釐清：「你期望他與你相愛，但他是否只是想與你做愛？」
這種性愛姿勢可以創造出緊密貼合的感覺，因此給予者的陰莖或綁帶會感覺更大。
This 'coming with each other' is normally understood in heteronormative phrases as the penetration of a woman's vagina by a man's penis.
虽然性生活的好处众多，但现实情况却是：男性一旦到了中年，身体各个器官衰退，体内雄性激素水平低，性能力和性欲望会有所下降，在性方面往往力不从心。不过此时女性的性欲望却非常高涨且性经验丰富，对性爱方面非常渴望，所以夫妻间往往会因为性爱而出现分歧，从而影响感...
.. The prevalent, unquestioned equation of penile–vaginal intercourse with sex reflects a failure to examine systematically 'whether or not the respondent's comprehension of the dilemma matches what the researcher experienced in your mind.'
Nancy W. Denney; David Quadagno. Human Sexuality. Mosby-Yr Guide. 2008: 273. ISBN 0801663741. Even though the term intercourse is generally accustomed to make reference to the insertion from the penis in the vagina, It's also accustomed to refer to oral intercourse or anal intercourse where the penis is inserted into the mouth or perhaps the anus, respectively.
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