Finnpoe

Stormpilot is the slash ship between Poe and Finn from the Star Wars fandom.

Canon
Finn and Poe share a strong mutual trust through and from the events taking place both in The Force Awakens and The Last Jedi. The two both rely upon each other, having been working together during their escape and in making a plan.

They also are shown to care for the others wellbeing– the two share a warm embrace after being separated and believing the other was dead. In TLJ, a happy, relieved Poe excitedly runs to assist a confused Finn after he is seen awoken from his coma.

The Force Awakens
FN-2187 enters the interogation room where a man named Poe is being held. He informs the storm trooper there that Kylo Ren wants the prisoner, and Poe is unlocked. FN leads Poe down a hallway and pulls him into a small corridor. He then lets him go and tells Poe that if he does what he says he can get him out of Star Destroyer. Poe is confused and FN removes his helmet, telling him that he's rescuing him. Poe asks Finn if he's in the resistance, but FN says that he's not but he is rescuing him and asks if he can fly a tie fighter. Poe says that he can fly anything, much to FN's joy, and asks why FN is helping him. FN says it's because is was the right thing to do, but Poe quickly figures out that it's because he needs a pilot, which FN confirms. Poe says they're gonna do this and FN nervously responds yes.

In the hanger bay, FN leads Poe through saying to stay calm. Poe says that he is calm, but FN says that he was talking to himself. They get to the Tie Fighter and start to prepare to take off. Poe asks if FN can shoot, and FN says just blasters. Poe says it's the same idea and explains how the controls work. FN says it's pretty complicated just as Poe starts to take off.

The Force Awakens

 * Finn is one of the Strom Troopers who was a member of the raid on the Jaku village where Poe is.
 * Poe fires a shot the hits the Trooper next to Finn.
 * Finn watches another Trooper take away Poe.
 * Poe looks at Finn after he's unlocked.
 * Poe looks Finn over after Finn takes off his helmet.
 * Poe smiles at Finn.
 * Finn tells Poe when they can get to the Tie Fighters.

Behind the Scenes
Oscar Isaac is quite publicly open about the ship, and a lot of possible insight comes from him raising up the hopes of dedicated shippers:
 * In an interview with Ellen DeGeneresundefined alongside John Boyega (Finn) and Daisy Ridley (Rey), Ellen asked if any romance will be seen between the characters, to which Oscar Isaac (Poe Dameron) replied, "I think it's very subtle romance that's happening." Isaac then continued, saying you need to look closely to catch the hints, and that he was playing a "very deep romance" with Poe's character– to which Boyega also replied, saying he was also playing romance. Fans saw that the romance Isaac referred to was between Poe and Finn, since most of Poe's extended scenes involved both of them.
 * When Oscar was asked who he would rather go on a date with, Finn or Poe, he said that he'd go with Finn, and that Finn would take him on a date to Olive Garden.

John Boyega also seems to ship the two:
 * He was asked by MTV News if Finn/Poe bromance would continue, he stated that "Absolutely. 100%. That's my boy. Poe's my boy. That's my dude," and that the "Love is potent." He was then asked if he was aware of any Fan Fic of the two, and he is, and has been sent quite a bit of erotic fan art.
 * When John was asked who he would rather go on a date with, Finn or Poe, he immidiatly said Poe, siting the X-Wing as the reason.

When MTV International played a game of "Would You Rather" with the Star Wars: The Last Jedi cast, the question "Who would you rather go on a date with: Finn or Poe?" was asked, and several cast members answered that they shipped the two
 * Daisy Ridley stated that she could choose between them and would go with them on a date with each other.
 * Kelly Marie Tran stated that she shipped the two.

Fanon
Fans initially received the performances of the two characters as having great onscreen chemistry, despite having a few minutes' worth of scenes. Eventually the two were heavily perceived as a romantic possibility, sparking online debate as to whether or not their relationship was merely a "bromance" or not.

An infamous cause to the uprising of the ship is what many refer to as "the lip bite". After the two reunite on the Resistance base, Poe notices Finn is sporting the flight jacket that belonged to him, which Finn took from the wreckage of their crashed TIE fighter while looking for him from their escape/rescue. Finn immediately tries to take off and return the jacket, but is prevented by doing so. Poe then tells him the jacket suits him and that he should keep it– followed by a quick lip bite and nudge. This was huge to fans, as lip biting can be seen as being very suggestive in a flirtatious or sexual way.

Fandom
FAN FICTION
 * Poe/Finn on FanFiction.Net
 * Poe/Finn on FanFiction.Net

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TWITTER

Trivia

 * Oscar Isaac once signed a "FinnPoe is Endgame" sign created by a fan, along with the phrase "Fully Endorsed".
 * The page on Poe Dameron in The Last Jedi: Visual Dictionary shows that Poe wears his late mothers ring, and uses the unisex term "partner" to refer to his possible future spouse.
 * Stormpilot became the most vocally talked about pairing after The Force Awakens.
 * According to Fandometrics, Stormpilot was the 21st most reblogged ship of 2016.

Variations

 * JediStormPilot refers to the ship between Rey, Finn, and Poe.