dangerous and miss leading.
Adam and Eve are not and never have been 2 people. Adam roughly means First Born, or First man, Eve fist women.
The old Testament is a mixture of ancient beliefs, folk-law, story telling and laws, it's not Gospel Truth, and has been re worked and re written over the centuries.
And it was Lot's daughters who instigated an incestuous act with their father by getting him drunk. This was after the destruction of their world and they believed they were the only ones left. God or an earthquake?