The treatment of therapists' sexual behavior in the American Psychological Association's (APA's; 2017) Ethical Principles of Psychologists and Code of Conduct (hereinafter, APA Ethics Code) and various state statutes reflects the values and priorities of the profession at the time and represents some of the association's most labored and conflicted decisions. Ambiguity often characterizes the development of APA Ethics Code revisions, particularly on sexual behavior. All psychologists do not share the definition of ethical behavior, the purpose of an ethics code, or acceptance of public accountability. Components of ethics include (a) virtue ethics referencing character, morality, integrity, respect for others, and values; (b) principle ethics in the form of a code of conduct that guides professional behavior; and (c) an educational tool to facilitate decision making. Psychologists may adopt one or more or none of these aspects of ethics, resulting in the ambiguity with which the inclusion of sexual misconduct has evolved in the APA Ethics Code and in legal statutes.This chapter presents the development of the topic of sexual misconduct in the APA Ethics Code from its inception to the present. The current status