The life course of sexual activity and lifestyle of an individual can be termed a sexual career. Generational effects and secular trends aside, most individuals' sexual careers undergo a similar process (Welling et al., 1994). There is an initial experimental phase with a number of partner changes. Then there is the establishment of a long term and committed relationship (e.g.: marriage). Later in life, there can be separation, divorce and widowhood, which result in either sexual abstinence or new relationships.