Incest is also legal in Argentina, Brazil, India, the Ivory Coast, Japan, Latvia, South Korea, Thailand, and Turkey.
Can you marry your sibling in any country?
No, it is not legal to marry your sister in any state in the US, or in most countries around the world. It is not legal to marry your sister because a brother and sister share genetic material and this makes the chances of their child having a genetic disorder much higher.
Can you marry siblings in the UK?
Generally, people can marry their step-siblings, unless the law in their country prohibits it. If step-siblings are not related by blood, they can get married and even have children. However, marriage between people who are related by blood is illegal.