性行为是伴随着人类的出现而存在的一种生理活动,长期以来,人们总认为性行为就是性交,然而性学专家们却有不同的看法。他们认为性行为是很广义的概念,并不专指性交,它的内涵是极其丰富的,实际上性行为应包括以下三个方面的内容。 边缘性性行为 主要是指情侣之间在结婚之前进行情感的交流过程。表现方式有:(1) Sexual behavior is a physiological activity that accompanies the appearance of human beings. For a long time, people always think that sexuality is sexual intercourse. However, sexologists have different opinions. They think that sex is a very broad concept and does not refer specifically to sexual intercourse. Its connotation is extremely rich. In fact, sexual behavior should include the following three aspects. Marginal sexual behavior mainly refers to the emotional exchanges between couples before marriage. Manifestations are: (1)