In this chapter, I will tackle the “debate” between Herbert Marcuse and Michel Foucault on the relationship between sexuality and power. While a proper discussion between them never accurately occurred, Foucault’s attacks on Marcuse’s theory of sexuality became profoundly influential, which justifies revisiting this diatribe. To advance my argument, I will first address the episodes in which Foucault engages with Marcuse’s oeuvre, whether in interviews or lectures. I will seek to show how contextual events related to Marcuse’s reception in France and the political situation revolving around the events of 1968 were decisive for Foucault’s reading of Marcuse. Second, I will focus on Foucault’s primary criticism of Marcuse, which is related to theories that reduce power to its repressive mechanisms. Resorting to Marcuse’s concept of “repressive desublimation,” I will then show how Foucault’s reproach fails to acknowledge fundamental points of Marcuse’s theory. Finally, instead of completely dismissing Foucault’s approach to sexuality, I will argue for a joint reading of Marcuse and Foucault.