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 practice was common in earlier times, and continues to be common in some societies today, though in some jurisdictions such marriages are prohibited.

Is it normal to date your cousin?

Legally, you can date and be intimate with your first cousin, but if you are considering marriage, laws vary by state and country. As with all moral decisions, this is a personal, but complicated matter, given societal norms and the many who see cousin marriages as taboo.