I'm looking for a specific fic that I read a while ago on AO3, in where Sam was kind of a researcher? And took Dean with him to investigate angels, that in this AU are like clever and rare animals.
Point is, when they got where the angels were, Castiel sticks to Dean, and doesn't stop smelling and starts talking and Sam it's like holly fuck they can talk I have to record this, but Cas explodes his camera with grace or something like that.
Meanwhile Dean it's like wtf is happening when other angel comes and Castiel and him start fighting for Dean.
At the end Castiel learned to share and there are a lot of angels hugging Dean and that. NDNNDNDXKDK
Ring any bells?:(
Also, any fic that have feral/kind of animal angels would be welcome.