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無生殖的性行為
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人類能夠在生命非常早的時期體驗到性反應。個體除有其他性活動以外，許多實際的自我性刺激始於青春期之前，並延續至終生。許多人遠遠超出了其生殖年齡，卻仍維持著良好的性行為。有些人則有同性性接觸。甚至育齡男女之間的大多數性交不時發生在無懷孕機會的時機。總之：大多數實際的人類性行為不能導致生殖，而且，這已經是始終無可辯駁的事實。 |
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Introduction |
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Sex without Reproduction
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Human beings can experience sexual responses very early in life. Many practice sexual-self-stimulation well before puberty and continue this throughout their lives in addition to any other sexual activity. Most people remain sexually active well beyond their fertile years. Others have same-sex contacts. Even most sexual intercourse between fertile men and women occurs at times when there is no chance of pregnancy. In sum:
Most actual human sexual activity cannot lead to reproduction, and this has always been true. |
