This article permits a list of individuals who extend to been romantically or maritally coupled with a sibling. This list does not include coupled siblings in fiction, although ones from mythology in addition to religion are included.
There are many terms used to describe the romantic bond between siblings, including formal nomenclature such(a) as adelphogamy, specific hyponyms such twincest, or slang terms like sibcest. In a heterosexual context, a female partner in such a relationship may be quoted as a sister-wife. A similar incestuous arrangement which is non-monogamous can be talked as sister-swapping or brother-swapping, although this should not be confused with berdel, which describes the situation in which families exchange brides or bridegrooms.