Technically this might be true. According to legends, Adam did have another woman named Lillith
before Eve was created.However, because Lillith refused to lay underneath Adam during sexual
intercourse, she was banished from the garden of Eden and damned. She then became known as the
Its quite possible. They were not the first humans so its quite possible. Religious Christians are
in this fantasy world that Adam and Eve were the only ones. If that is the case, there was a lot
of years of incest in that family tree.