Fics like Paramour by Post

After a mix-up with the evening post, Dean begins exchanging regular correspondence (and delicious baked goods) with a stranger, who quickly becomes a friend. Castiel believes Dean is a woman. Dean doesn't know if Cas is a man, a woman, or an especially rare creature... and yet somehow he doesn't really mind. He's gone and fallen hopelessly in love. As far as he can tell, the feeling is mutual. But will all the fantasies hold up to reality, once they finally decide to meet?

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