Twincest

Synonyms:
See also:	incest, doppelganger
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Twincest refers to an incestuous pairing between twins. It may be a canon relationship, or a fannish pairing based on subtext.

Twincest pairings

Twincest pairings from canon or fanon include:

• The Boondock Saints - Connor/Murphy
• Digimon Frontier - Kouichi/Kouji
• Dune series - Leto II/Ghanima (canon, they married though they are in agreement that Ghanima will only have children by another man.)
• Fushigi Yugi - Amiboshi/Suboshi
• Harry Potter - Fred/George Weasley
• The Lord of the Rings - Elladan/Elrohir
• Marvel comics Ultimate universe - Pietro/Wanda (canon)
• Ouran High School Host Club - Hikaru/Kaoru (Canon/not-canon. They play up the incestuous overtones in their relationship for effect, but even when they don't have an audience they are extremely close, such as sharing a bed and sleeping unclothed together.)
• Revolutionary Girl Utena - Miki/Kozue (canon)
• A Song of Ice and Fire - Jaime/Cersei Lannister (canon)
• Star Wars - Luke/Leia
• Vampire Knight - Ichiru/Zero