Alphonse x reader headcanons (yuurivoice)

I wanted to make it clear none of the characters I use Alphonse or Seth ARE MY OC'S. All of the characters written in this book are borrowed from the original and wonderful creator, Yuurivoice and any one else who works with that channel Not me ! Again I am only using these characters to make headcanons and none of them are mine nor do I claim ownership! if any one knows how to make this more clear please tell me this is my first writing a fanfiction thingy. Please if you like this book/other thing ig check out his channel his creations are great and I highly recommend checking it out if you haven't! ! CHARACTERS NOT MINE THEY BELONG TO YUURIVOICE !
! ART FOR COVER NOT MINE MADE BY JACKIE ELEANOR !
(no nsfw/smut/lemon) (Look at the last chapter for info on recommendations and other things for the future)