Touched by an angel

My first attempt at writing an angel Sam fanfic
When Dean learns that he is going to be a big brother, he is ecstatic. However that joy soon turns sour when Mary has a miscarriage and Sam is never born. But instead became an angel and came back to his human body after seeing how distraught Dean was. Years go by and Dean has no idea that his brother is really an angel, but a secret like that can't stay hidden. Especially when you go up against Heaven and Hell.
Later chapters based on the mlp fanfic past sins by Pen Stroke.