A while after the movie Poe cuts his hair really short (the reason doesn't matter - maybe he was months overdue for a haircut during the movie or summer on D'Qar is too hot for long hair).

Finn tries to keep the laments to himself and Rey - have you seen those Tousled Black Curls?! - but Poe catches on and ribs him good naturedly about it.

Can be established or not yet.

Filled here: http://archiveofourown.org/works/5804425