Laws regarding consanguinamorous relationships vary widely between countries and jurisdictions. Note: I am not a lawyer and nothing on this site should be interpreted as legal advice.

In the United States, sexual relationships between consenting adults and their parents are legal in just two states, New Jersey and Rhode Island, while the other 48 states unjustly discriminate against consensual loving adult relationships:

Sexual relationships between consenting adults who are siblings are legal in these two states, and also in Ohio, while the other 47 states unjustly discriminate against consensual loving adult relationships:

Sexual relationships between consenting adults who are nieces, nephews, aunts, and/or uncles are legal in these three states and six others: Illinois, Kentucky, Montana, Oregon, Washington, and Wyoming, while the remaining 41 states unjustly discriminate against consensual loving adult relationships:

Sexual relationships between first cousins are legal in most states, and marriage between first cousins is legal in 26 states, with some restrictions in some states, while some states still discriminate against consensual loving adult relationships:

People in relationships with relatives more closely related than first cousins are denied the right marry in all 50 states, an abhorrent violation of basic civil rights.

In Europe, here is the legality of consensual sex between siblings:

For the rest of the world, here is a map that was created by The Final Manifesto a few years ago:

For more information: