I wanna see a Finn who catches Poe staring and knows all about significant looks. I want a Finn gets direct with him in hushed tones once theyre in private like its a big secret. I want a Finn that goes down on Poe and gets him off quickly and efficiently and then swallows without protest and cleans up after himself. I want Poe to be blown away (har har,) by this. I want a Finn who divulges that Stormtroopers had codes and plans for all this and they carried out pleasing eachother in secrecy and silence.

+10 If Finn doesn't get why Poe likes to lavish attention on his dick and spend time blowing him when its supposed to be a task that you get done so you can carry on with your day.
+100 If Poe goes down on Finn in a random hall or hangar semi publicly and just out of sight or just out of earshot from a busy hub to put Finn's Stormtrooper silence to the test.
+101 Poe teases Finn to a point where he starts making noise.

And then if you wanna add Rey in:
+102 If Finn is the master at blowjobs and finishing Poe off in record time but with Rey he's fumbly and awkward and Poe has him beat for his eating out abilities.
+1000 If Rey is appreciative of both Finn's beginner fumblings and Poe's perfected technique.