In this review, Lucía Solavagione analyzes the book "Criminalizing Sex: A Unified Liberal Theory" by Stuart P. Green. The book is divided into four main parts and focuses on the definition of sexual crime and sexual behavior, as well as the justification for the criminalization of certain behaviors in a liberal rule of law. It also analyzes the proof of the absence of consent in sexual crimes and examines different paradigms of rape and sexual abuse. The author evaluates different ways of defining these crimes, such as force, "no means no," and "yes means yes." The text analyzes different aspects related to the criminalization of sexual behaviors. It discusses defective consent in cases of deception, rape through psychological coercion, the presumption of absence of consent in certain circumstances, sexual harassment, voyeurism, obscene exhibitions, incest, and sadomasochistic abuse or aggression. Questions are raised about the legitimacy of criminalization in each case and different perspectives are explored. The author seeks to establish criteria for distinguishing between behaviors that should be considered crimes and those that should not. The text analyzes different sexual behaviors and their possible criminalization from a liberal perspective. Topics such as sadomasochism, prostitution, bestiality, and necrophilia are addressed. The author argues that the criminalization of these behaviors should be based on their harmfulness, unlawfulness, and moral culpability. The importance of consent in sexual crimes is emphasized, and the question is raised of whether the injury to the victim's sexual autonomy justifies their criminalization. The article discusses the role of consent in defining unlawfulness in sexual crimes. Questions are raised about whether there are other ways to violate sexual autonomy besides lack of consent. It also questions how lack of consent should influence the definition of unlawfulness in sexual crimes. Examples of cases of sadomasochistic aggression and bestiality are mentioned where consent does not seem to play a relevant role in criminalization. Furthermore, the question is raised as to why certain improper sexual behaviors, even if consensual, are criminalized. The author argues that consent and moral unlawfulness are necessary but not sufficient elements for legitimate criminalization. The text mentions a series of books and articles related to criminal law and legal philosophy. The authors and titles mentioned are: Urs Kindhäuser and Edward Schramm with "Strafrecht Besonderer Teil I: Straftaten gegen Persönlichkeitsrechte, Staat und Gesellschaft," John Stuart Mill with "On Liberty," Claus Roxin with "Strafrecht. Allgemeiner Teil," Frederick Schauer with "Playing by the Rules: A Philosophical Examination of Rule Based Decision-Making in Law and in Life," Victor Tadros with "Wrongs and Crimes," and Thomas Weigend with "Über die Begründung der Straflosigkeit bei Einwilligung des Betroffenen." These texts address different aspects of criminal law and legal ethics. [Extracted from the article]