Not everyone is ok with a reformed storm trooper working with the Resistance and one person (or a couple people, up to you!) isn't afraid of hiding it. They call him FN-2187 and are pretty much bullying him. Poe isn't having any of that and stands up for Finn.

fluff, thump, angst, h/c give it to me Anon!

+100 if Finn is all speechless and a little confused by Poe's protectiveness.
+1000 if Poe gets shit or punched for being a ST sympathizer
+10000 for all the fluffs and General Organa being all hell no
+cookies of BB-8 getting in on the action