使用體位C時，男人的背部弓著，對喜歡陰道前壁和G點受到刺激、但又覺得後進體位不舒服的女人，是一大福音。但背部有問題的男人不宜採用這體位，而腹部緊實者用這體位可以展現自己的肌肉。

In many cultures throughout the world, vaginal sex is exactly what is frequently implied when people seek advice from 'acquiring sex' or 'sexual intercourse'. It is the most often examined actions and is commonly the main target of sexuality education programming for youth. 

很多女人認為後進體位是令她們最狂野的性愛姿勢。男人也覺得這種體位非常有活力。女人喜歡這體位的原因，除了可以深深插入以外，也有種被征服的感覺。有些女人也喜歡男人抓著自己臀部，快速地衝刺，很有動感。同樣地，如果女人喜歡較慢的速度，男人也可以控制自己抽插的快慢。

體位B只適用於男人的勃起可以維持在某種曲度的時候。陰莖緊貼近腹部的較年輕男人就不適合這體位。對於喜歡玩弄肛門的男女來說，這體位很棒。如果她往前傾斜，把胸部放在男人腿上，那男人就能玩弄她的肛門和會陰區，讓女人爽翻天。

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Nancy W. Denney; David Quadagno. Human Sexuality. Mosby-Year Guide. 2008: 273. ISBN 0801663741. Although the phrase intercourse is generally used to seek advice from the insertion of your penis in to the vagina, it is also accustomed to refer to oral intercourse or anal intercourse in which the penis is inserted in the mouth or perhaps the anus, respectively. 

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性愛姿勢做法：兩人面對面坐在床上，腿伸向對方，手臂撐在後面。接著雙方胯下靠近。對方的臀部會在你的雙腿中間，你的膝蓋彎曲、腿在他的臀部兩側、腳踩床上。 然後開始前後擺動身體。

女人喜欢男人轻柔地摸女人的手，在摸手时有些暗示，让女人的心荡漾起来，想让男人抱着、吻着。如果在摸女人的手时，紧张得发抖，或是神经质地做些小动作，女人不会喜欢，反而会有些讨厌。

.. 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 experienced in mind.' 

性愛姿勢做法：你跪在對方身上，手放他的胸膛。身體可以微微往後將重量壓在對方的骨盆上，你會輕鬆一點。

基本上，只有六種體位，其他的都只是這些主旋律的變化：男上、女上、側邊、後進、站立、坐跪。

使用此體位時，男女躺在兩側，兩雙腿就像剪刀一樣交錯在一起。你可以跟她面對面，或者在她的背後。側邊體位的優點，在於多數男人可以長時間地抽插不會很快達到高潮。這可以讓伴侶間的親密接觸維持較久。而且因為這體位插入的程度較輕微，如果男人的陰莖太過碩大，採用這體位會讓女人較為舒服。就跟男上體位一樣，親吻和擁抱幾乎必然會出現。

Such as, Except a girl has been penetrated by a person's 性爱视频 penis she remains technically a virgin regardless of whether she has experienced a great deal of sexual expertise.