Awesome one-shot. I can so believe that could've happened.

Awesome.
A really tragic yet beautiful look into John and Dean's relationship. And yeah, John was far from a perfect father and he pushed Dean into growing up far too soon but Dean grew into a great person because of/despite all of that. And John made certain that Dean had a purpose in life and with all that Dean had to live through, that very thing is what kept Dean going through it all...
Wonderfully written.