Kay
Here's another fic for you!
https://archiveofourown.org/works/35176054And a thing cause I love this so much:
words for Mary Winchester, to the tune of Mary Did You Know-
Mary did you know, that your little boys would one day become hunters? Mary did you know, that your little boys would save people's sons and daughters? Did you know that your little boys would find the son of Satan? And they'd raise that little baby the same way that you raised them. Oh, Mary did you know? -end- that's all I could come up with, but I love it, and technically she raised both for awhile.