Wincest

Etymology
. Possibly influenced by.

Proper noun

 * 1)  The incestuous slash  of the fictional brothers Dean and Sam Winchester from the television series Supernatural.
 * 2) * 2009, Emily Turner, "Scary Just Got Sexy: Transgression in Supernatural and Its Fanfiction", in In the Hunt: Unauthorized Essays on Supernatural (ed. Supernatural.tv), BenBella Books (2009), ISBN 9781933771632, page 159:
 * Wincest stories often take their transgressive cues from the text itself; often when Sam and Dean are seducing each other in Wincest stories, the more reluctant of the two is convinced to engage in the relationship when the other reiterates that they are already outsiders in society, already isolated from the “normality” of their world—why should the prohibition of incest stand in their way when they have already broken so many other laws?
 * 1) * 2013, Henry Jenkins & Suzanne Scott, "Textual Poachers, Twenty Years Later", in Henry Jenkins, Textual Poachers: Television Fans and Participatory Culture, Routledge (2013), ISBN 9780415533287, page xxxiii:
 * Supernatural fandom features some of the more controversial iterations of slash, predominantly Wincest (the incestuous coupling of the show's protagonists, the Winchester brothers),
 * Supernatural fandom features some of the more controversial iterations of slash, predominantly Wincest (the incestuous coupling of the show's protagonists, the Winchester brothers),