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This article discusses the hypothesis that, in contemporary society, while the Oedipus complex is more complex, it still exists as a central organizer of the psyche. A debate with anthropological views—in particular with Françoise Héritier and her theory of “incest of the second type” (between a mother and daughter who have the same lover)—leads to a reproblematization of the notions of primary homosexuality, intersubjectivity, and thirdness. The issue of differentiation can thus be better conceived in relation to subjectivation: does incest hold the risk of a psychotizing dedifferentiation? What about psychical disorders in adolescence marked by phenomena of regression towards group situations dominated by borderline functioning? The identical evoked by Héritier does not totally correspond with narcissistic libidinal economy. It is necessary to revive the historic dialogue between psychoanalysis and anthropology (A. Green and J. Lacan with C. Lévi-Strauss, and more recently, the exchanges between M. Godelier and B. Juillerat), starting with a reflection on the paternal function today by extending the critical discussion of the theory of incest of the second type, and the example of a traditional society without fathers and contemporary neo-parenthood. It would appear that the oedipal triangle can take various forms.