Hello! I'm looking for a specific fic and it's driving me bonkers. I know I saw the description not too long ago. It's something along the lines of this (very paraphrased):

After Sam rescues Dean's soul from Hell, his soul isn't bound properly to his body and they have to find a way to secure it.

Pretty sure they end up binding their souls together. They maybe go to London? I might be blending more than one fic in my memory, so I really hope this is enough to help someone recognize it!

EDIT: I found one of the ones I was thinking of, it's You Take It With You by lazy_daze.

However this has made me realize that there is another fic I'm thinking of, 99% sure it involves Sam binding Dean's soul to his to get him out of going to Hell, and I do think they travel to Europe to talk to a witch or hoodoo guy about it. So if this rings any bells, let me know!