Finn has touched himself, but the way the First Order has structured it has made it very unfulfilling and quick. When Finn tells him, Poe asks to see.
Basically, Poe and Finn lying 'extremely' close next to each other but not quite touching. Poe demonstrates how he touches himself (grip a little tighter, alternate, hold the head while cupping the balls) and tells Finn to practice what he sees on himself.
"It's ok, Finn. Trust me, fingering yourself will be great."
Finn and Poe just look into each other's eyes, not touching or kissing. But basically talking and describing, mouths so close they are breathing in each other's breaths, Finn asking how to do something, Poe asking how Finn feels.
Poe/Finn; Jerk off Demonstration
Basically, Poe and Finn lying 'extremely' close next to each other but not quite touching. Poe demonstrates how he touches himself (grip a little tighter, alternate, hold the head while cupping the balls) and tells Finn to practice what he sees on himself.
"It's ok, Finn. Trust me, fingering yourself will be great."
Finn and Poe just look into each other's eyes, not touching or kissing. But basically talking and describing, mouths so close they are breathing in each other's breaths, Finn asking how to do something, Poe asking how Finn feels.