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性行為的基本類型
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2.
異性性交:
異性生殖器性交
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性器官並置
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正深情擁抱的夫妻
印度中部卡久拉霍寺廟雕塑 |
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Couple in loving embrace.
Hindu temple in Khajuraho, central India. |
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當十幾歲的未婚青少年第一次開始嘗試性交時，他們因為害怕非意願懷孕，或者因為女孩想要保持“童真”，常常會避免陰莖插入陰道。不過，因為男孩在他們的做愛遊戲中，通常至少會變得非常的興奮，女孩有時通過“深度愛撫（heavy
petting）”[1]會使男孩達到性高潮。例如，沒有感到自己非常興奮的女孩可能會鼓勵他的男友一邊完全不脫衣服躺在她的身上，一邊做出性交的樣子。多數男孩在這種方式裏容易達到性高潮；然而，就男孩自身來說，他們會談到諸如“過幹癮（dry
humping）”[2]的經驗。當男孩的女友逐漸同意他有更多自由的時候，他可能脫掉部分或全部的衣物，最終這對性伴甚至可能決定在完全裸體的情況下繼續他們的體驗。不過，這個女孩也許暫時仍然害怕懷孕，或想要保持處女膜的完整。她也可能擔憂出血和疼痛，或擔心感染上性傳播疾病。儘管如此，只要男友不試圖插入自己的陰道，她也許樂意他用陰莖摩擦她的陰戶。的確，對性伴雙方來說，這樣的男女性器官並置（apposition
of sex organs）可能非常的快樂，並且，隨著不斷地實踐，通過這種技巧，男女雙方都有充分的理由能夠達到性高潮。畢竟，陰莖受到了直接的刺激，並且當陰莖推進壓向陰戶的某個部位時，能間接刺激敏感的陰蒂和小陰唇。甚至正常從事性交合的夫妻，要是因為妻子有某種損傷或疾病，她的內部性器官變得過於敏感[3]，所以，有時也喜歡這種簡單的性交形式。
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Basic Types of Sexual Behavior |
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2. Heterosexual Intercourse: Genital Intercourse |
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Apposition of Sex Organs |
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When unmarried teenagers first begin to experiment with sexual intercourse, they often avoid the insertion of the penis into the vagina because they fear an unwanted pregnancy, or because the girl wants to preserve her "virginity". However, since at least the boys usually become highly aroused during their loveplay, girls sometimes allow them to reach orgasm by "heavy petting". For example, a girl who does not feel very excited herself may encourage her boyfriend to go through the motions of coitus while lying fully clothed on top of her. Most boys easily reach orgasm this way, and, among themselves, they refer to the experience as "dry humping". As their girl friends gradually allow them more liberties, they may remove some or most of their clothing, and eventually the couple may even decide to continue their experiments in complete nudity. Nevertheless, the girl may, for a while, still fear a conception or want to keep an unbroken hymen. She may also worry about bleeding and pain, or an infection with a
sexually transmitted disease. Still, she may gladly permit her boyfriend to rub his penis against her vulva, as long as he does not try to insert it. Indeed,
such an apposition of the male and female sex organs can be quite pleasant for both partners, and, with some practice, both of them may very well become able to reach orgasm through this technique. After all, the penis is stimulated directly, and, as it pushes against certain areas of the vulva, it can indirectly stimulate the sensitive clitoris and the minor lips. Even couples who normally engage in coitus may sometimes enjoy this simple form of sexual intercourse, if the woman's internal sex organs become too sensitive because of some injury or disease.
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