Between His Finger and the Trigger (Ghost x Reader)

"You know that ghosts are only a figment of one's imagination. A shadow on the wall, an unfamiliar dash of light in a mirror, a strange orb in a photo. However, when you lay in bed at night, and feel the mattress dip beside you, and feel that cold tender hand on your cheek, you cannot help but feel comforted by the unknown."

You see the dead, he's a metaphorical ghost. A husk of a man, who's emotion only shines through his eyes, and who's only romantic actions lie between his finger and the trigger of a gun. Tensions are high, and you have to lie low. Will you see through him, or does the mask cover all?
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Ghost and Reader are stuck together in a safe house for an unprecedented amount of time, hijinks ensue.
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This is also posted on AO3, @Spinning_Spiral, it will get updated more often there!