One of the greatest issues that people struggle with is the morality of sex in different situations. Perhaps we worry about it so much because it is such an intimate and significant event. From a purely biological standpoint, sexual intercourse is the means for what might be considered the most important biological function of humans – reproduction, the continuation of our species. But, as beings concerned with not only the biological aspects of life but also with morality, we must ask the question: when is it morally appropriate to engage in sex?
Let us throw religion to the wind, for the time being. Obviously, different religions (and even different sects of a single religion) have wildly varying opinions on when, where, and how sex is appropriate. However, if one simply looks at sex from the view of a general human being, who is not affiliated with any religion but strives to be moral, can one find a general rule for when sexual intercourse is suitable?