step out into the sun, by plutos

Finn stares quizzically down at the datapad. Any name in the galaxy. He wonders, briefly, what his family name would actually be. If his parents had picked out a name for him when he was born, after a relative or chosen for its meaning. But it doesn’t matter now. 

He slowly, carefully prints out ‘DAMERON’ in his neatest handwriting. When he’s finished, he looks up at Poe’s face, hoping it’s okay. Poe’s biting his lip, his hand clenched on his thigh, knuckles white. BB-8 beeps loudly, and Poe’s face breaks into a beautiful beam, like his mouth can’t contain his joy.

Adult, post-TFA. In which Finn is desperate to find his place and ends up being fake-married to Poe. Absolutely wonderful!