A cousin marriage is a marriage where the spouses are cousins (i.e. people with common grandparents or people who share other fairly recent ancestors). The laws of many jurisdictions set out the degree of consanguinity prohibited among sexual relations and marriage parties.

What is it called when you marry a sibling?

Incest (/ˈɪnsɛst/ IN-sest) is human sexual activity between family members or close relatives. This typically includes sexual activity between people in consanguinity (blood relations), and sometimes those related by affinity (marriage or stepfamily), adoption, clan, or lineage.

Can you marry one of your family members?

A: The quick answer to that is yes; it is possible to have a friend of family member perform your marriage ceremony once they have been legally ordained to do so. Getting ordination can be as simple as filling out an online form from a ministry that will ordain anyone who wants to solemnize weddings.