This paper studies five stories in the book by the Colombian writer and illustrator Luis Carlos Barragan Castro: Parasitos perfectos (2021). The stories have in common the expression of the imaginative scope of symbiosis between human beings, animals, insects, machines, and parasites in general. Thus, after a theoretical framework dedicated to the New Weird, Biopunk and some components of Harawayan thought, the essay will address the work of Luis Carlos Barragan Castro with respect to the idea of symbiosis, which allows to remedy the social marginalization of the protagonists and to create parasitic sympoetics as a new form of community politics.