Recent commentaries on the relation between Deleuze and Foucault often operate with an implicit idea of compatibility or consistency that postulates systematic harmony as the decisive criterion for the affinity between them. Accordingly, the predominant question is whether Deleuze and Foucault are “true” friends philosophically and politically. Although the assessments differ, they share a likewise implicit notion of the friend as familiar that excludes any form of ambivalence in amicable relations and consequently cannot fully account for the dynamics and variability (...) of the relation between Deleuze and Foucault. This article tries to address this problem by suspending the notion of the friend-as-familiar, effectively posing the question of what concept of friendship we would have if the ambivalent relation between Deleuze and Foucault would be the model. For this, the reconstruction begins with the early encounters and follows their relationship until the supposed split in the context of the desire-pleasure-debate. What becomes apparent is the dialogical structure of the philosophical friendship between Deleuze and Foucault that entails convergences as well as divergences, which will eventually be related to their own and fundamentally different concepts of friendship. Deleuze and Foucault, as will be argued, are neither “vrais amis” nor “faux amis” but simply amis that practised a form of philosophical friendship, lasting for more than 15 years. (shrink)