In these stories, the brother usually wooed and wed his sister, who bore his child or children, but on discovering that they are siblings, they are often (but not always) forced to part.
There are strong parallels between the Germanic portrayals of twin incest and those of the Balinese Ramayana, and some scholars have speculated an early Indo-European link.
[4] The theme also appears in English literature, such as the incest between the twins Polydore and Urania in Delarivier Manley's The New Atalantis.
[10] The fantasy fiction series A Song of Ice and Fire describes a secret relationship between Jaime and Cersei Lannister, who are fraternal twins.
[11] In 2009, Elijah and Milo Peters, then-19-year-old Czech identical twin brothers, gained notoriety for having sex with one another in gay pornographic films for BelAmi.