No person shall marry his or her sibling, parent, grandparent, child, grandchild, stepparent, grandparents spouse, spouses child, spouses grandchild, siblings child or parents sibling. Consensual incest between people 16 years old or more is not a criminal offense.

What states is it legal to marry your sister?

What states is it legal to marry your sister?StateFirst cousin marriage allowedSexual relations or cohabitation allowedAlabamaYesYesAlaskaYesYesArizonaOnly if both parties are 65 or older, or one is infertileNoArkansasNoYesMay 29, 2021

Is marrying your sibling legal?

Is it legal to marry your sister? 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 siblings have a healthy baby?

But there is definitely good biology behind the laws that prohibit brothers and sisters from having children. The risk for passing down a genetic disease is much higher for siblings than first cousins.