It’s not at all surprising — and also entirely fitting — that the tenth episode of Alis Locanta’s groundbreaking erotic series “Outlines” is completely unlike any of the nine episodes that have preceded it. Most notably, “Outlines Episode 10 — Animal Instinct” is neither a single girl, or a girl-girl feature. Taking the series into uncharted territory, Locanta has cast three performers — Taylor Sands, Silvie Luca, and Alexa Tomas — and has given them each unique roles to play. While it is tempting to reveal the scenario and action in luscious, lurid detail — and this film is unquestionably both of those things — it can be said without giving too much away that Ms. Sands is cast in the most animal-like role, even though her castmates also have ample opportunity to display their “Animal Instinct.” With theme music provided by an atmosphere-enhancing jazz quartet, the film cycles between the presentation of the three stars, each in her own panel of an animated triptych, and two stylized but intensely erotic sexual encounters. While all three of the film’s stars have appeared in previous installments of the “Outlines” series, their performance here are completely self-contained and specific to this production. The same can be true of the cinematic artist who created the ten component pieces of “Outlines.” Each episode of the series is unique, inventive, experimental, and powerfully erotic. Although “Animal Instincts” ends the series, it also begins a conversation, and viewers will be talking about and revisiting “Outlines Episode 10” long into the future.