性行為的發展

青春期的激素變化導致高靈敏度的性可喚起狀態（sexual arousability），尤其在男青少年更甚。他們也許會有性高潮和在睡眠中射精（“夢遺”），並且他們也可能在清醒狀態有未期而至和讓人討厭的勃起。甚至在首次射精之後的數年裏，他們通常就會達到性能力的峰值狀態。當無其它性釋放途徑時，他們可能會有頻繁的自娛（手淫），在一些案例會有與一個或數個男性朋友相互自娛。通過這種途徑，他們逐漸對自己的生理反應熟悉起來，他們此時清晰地識別為“性”反應。另一方面，許多少女當與“男友”有了親昵行為的時候，第一次會有這種生理反應，即使在那時，這種性體驗可能相當地彌散和無特異性。此外，在那個年紀，發生自娛的女孩數量只有男孩的一半。但是，總會有異議存在，總體上我們可以說：雖然女孩達到生理成熟要早于男孩，她們的“性”反應發展卻比男孩要慢。因而，相同年齡的男女青少年通常會有性錯配（sexual mismatch）。男孩會希望更多的身體接觸，而女孩仍將勉為其難，這不僅因為社會習俗（影響）的原因[1]，而且還因為她未體驗到同齡男孩的生理緊迫感。事實上，許多女孩只有在隨後20多歲和30歲出頭時，才會達到其最大的性動機和性能力的程度。

[1]. 例如中國社會文化在對待男女的“雙重道德標準”的原因：“餓死事小，失節事大”就是專門針對女性的一種倫理規範。——譯者注。

Stages of Development: Adolescence

Sexual Response 1

The hormonal changes of puberty produce an increased sexual arousability, especially in males. They may have orgasms and ejaculate in their sleep (“wet dreams”), and they may also have unexpected and unwelcome erections during their waking hours. Indeed, a few years after their first ejaculation, they usually reach the peak of their sexual capacity. When they have no other outlet, they may masturbate frequently, in some cases together with one or several male friends. This way, they become familiar with their own physical responses which they now clearly identify as “sexual”. On the other hand, many females first have these responses when they get involved with a “boy friend”, and even then the experience may be rather unfocussed and unspecific. Moreover, only half as many females as males masturbate at that age. There are always exceptions, but in general one can say: While girls achieve their physical maturity earlier than boys, their “sexual” response develops more slowly. Thus, female and male adolescents of the same age are, as a rule, sexually mismatched. The male will want greater physical intimacy, and the female will remain reluctant, not only because of social convention, but also because she does not share the male’s sense of urgency. In fact, many females will reach their greatest sexual motivation and capacity only in their late twenties and early thirties.