Citations:Pottercest

Noun: "(fandom slang) any ship involving members of the Potter family from the Harry Potter series in an incestuous relationship"

 * 2014, Vera Cuntz-Leng, "Twinship, incest, and twincest in the Harry Potter universe", Transformative Works and Cultures, Volume 17 (2014):
 * Further, it is striking that with the exception of Malfoycest (Draco/Lucius, Draco/Narcissa, Draco/Scorpius) and the Pottercest pairings involving Harry and his future children (23 out of 62), the majority of incest stories take place between siblings (875 out of 1,065—82 percent).