Found! traumatized Derek post-fire recovery

[erasemenow]

I'm looking for a specific piece that takes place shortly after the fire. Laura and Derek go to live with relatives. Derek is traumatized and can't bear to speak or interact. He won't go to school or go to the store. His Aunts and cousins try to help him - but it takes time. The part I remember is one particular scene where Derek is with his sole friend - a coworker's daughter who had been raped. It's night time and they shout out loud that their attackers were dicks and that at the end they weren't broken.

I've been looking for this for days and haven't been able to find it.

Edit: Finally located it... "Walking" by the incomparable Basingstoke.
http://archiveofourown.org/works/961097