性行为的基本类型

手交（manual intercourse）在此被定义为涉及一个人的性器官与另一个人的手之间的性接触。

在较为过时的婚姻指南中，手交常常被描述成“爱抚”或发展到性交的“前戏”。人们认为为使女性达到完全的性唤起，必需要有对女性性器官的深度的手刺激；所以，对于男性来说，为了愉悦女性性伴，人们劝告他们把手刺激作为一种常规的习惯。遗憾的是，许多男性想当然地以为这是“前戏”，仅仅把它当作让男人感到讨厌的额外负担。此外，因为一些男性对于女性的性反应知之甚少，他们对女性的阴蒂刺激过度，以致于达到疼痛甚于愉悦的程度。另一方面，女性常常对于触摸男性的性器官根本上感到勉为其难。简而言之，人们绝少把手交本身看作一种相互可分享的性体验。

不过，人们现在在性态度方面总体上似乎正在发生改变。许多男女现在会相互坦诚地告诉对方自己喜欢什么样的性交方式，也会相互坦诚地告诉对方自己更愿意尝试进行性交。因而，他们开始认识到了性交合（coitus）绝不是达到性满足的唯一途径。的确，他们认为通过对彼此的身体进行单纯的触摸、抚摸和按摩，也能够给予和得到极度的性快乐。此外，现代性治疗已经发现，手交的相互愉悦过程可以触发长期受到抑制的性反应，并由此有助于克服男女的性功能问题（sexual inadequacy）[1] （参见第五讲）。

2. Heterosexual Intercourse

Manual Intercourse

Manual intercourse is here defined as involving sexual contact between the sex organs of one person and the hand(s) of another.
In older marital guides, this kind of sexual intercourse was often described as "petting" or as a "foreplay" to coitus. Intensive manual stimulation of a woman's sex organs was considered necessary for her complete arousal, and men were therefore admonished to make it a regular habit in order to please their female partners. Unfortunately, many men came to think of this "foreplay" as just another unpleasant male duty. Furthermore, since they knew little about the female sexual response, some of them overstimulated the female clitoris to the point where they caused more pain than pleasure. Women, on the other hand, were often reluctant to touch the male sex organs at all. In short, manual intercourse was rarely seen as a mutually enjoyable experience in its own right.
Today, however, a general change in sexual attitudes seems to be taking place. Many men and women now frankly tell each other what they like sexually, and they are much more willing to experiment. Thus, they begin to realize that coitus is by no means the only road to sexual satisfaction. Indeed, they may find that they can give and receive great pleasure by simply touching, stroking, and massaging each other's bodies. Moreover, modern sex therapists have discovered that such mutual pleasuring can unblock long inhibited sexual responses and thus help overcome male and female sexual inadequacies (see Course 5).