445. I. THAT FORNICATION BELONGS TO LOVE OF THE SEX. It is said that fornication belongs to love of the sex because fornication is not love of the sex but is from it. Love of the sex is as a fountain from which can be derived both conjugial love and scortatory; and they can be derived therefrom through fornication and without it. Love of the sex is within every man, and it either does or does not put itself forth. If it puts itself forth with a woman, a harlot, before marriage, it is called fornication; if first with a wife, it is called marriage; if with another woman after marriage, it is called adultery. Therefore, as was said, love of the sex is as a fountain from which may spring both chaste love and unchaste. As to the precaution and prudence with which it is possible for chaste conjugial love to advance through fornication, and the imprudence from which unchaste or scortatory love advances thereby, this will be laid open in what follows. Who can draw the conclusion, that one who has committed fornication cannot be more chaste in marriage?