A friend of mine, a born-again christian told me that the Biblical Cain was not truely the son of Adam, that Cain was concieved when Lucifer made love to Eve. He said that Lucifer decieved Eve and first made love to her and when she enjoyed it she decided to extend it to Adam; that was when God got angry with them. He further said that Cain was concieved as a result of the union between Lucifer and Eve while Abel was concieved as a result of the union between Eve and Adam. He said Cain behaves like his father (Lucifer) while Abel took after his own father Adam. Could this be true??