And You're Miles And Miles by Shellyknack
Sometimes Castiel talks to the Impala. A tale of heartbeats, home, and Toy Story. Dean/Cas. Shmooooooop. One-shot
The Violin House by Teh Helenables
The Apple Pie Life is a slow process, but Dean and Cas are getting there—until Cas is called for battle and Dean is forced to wait.
The Curious Case of Wee Baby Cas Things by Tracy Loo Who
In which Dean and Sam get saddled with a herd of Cas-like baby animals.
The Dead Dean Clause by Vichan
Dean's word becomes law - with only one exception, which Dean has dubbed the 'Dead Dean Clause.'
Halosexual by Pagiel
Dean discovers that not only does Cas have a halo, he likes having it rubbed
A Dream of Flight by Tridenture
Cas starts visiting Dean in his dreams with astonishing regularity
Ignite by Hollybennet123
Castiel grieves not for the love lost between him and his kin, but instead for the love that they will never know.
(will add more to this later, plus an AU list and a long fic list)