Sentence:  Instead, she suggests, the romanticized, paratextual <WSD>Wincest</WSD> slash fiction offers Sam and Dean a redemptive happiness that they are perpetually denied by the show's writers both in a diegetic sense (via Chuck Shurley, the show's writer/prophet who publishes novels based on the boys' adventures) and in a non-diegetic sense (via Eric Kripke, Sera Gamble, and the show's returning writers). 
Meaning of the word marked with <WSD> tags:  The incestuous slash ship of the fictional brothers Dean and Sam Winchester from the television series "Supernatural".