Kylo (and Hux if included) have defected to the Resistance and run missions with the trio. Kylo is an omega and Rey, Finn, Poe, & Hux are all alphas and the group of them have an established poly relationship.

One day they’re on a mission, all crammed on board a rather small ship (maybe trying to infiltrate some First Order-controlled planet or something), when Kylo goes into heat. There’s no way to isolate him and no way to stop it, so the alphas have to take turns going to the back of the cockpit to fuck him before they’re all incapacitated with lust and screw up the mission.

Bonuses:
-There isn’t space to undress properly so they all just push what clothing they can out of the way to get access

-Close quarters means they can all see and hear every detail of each of the others fucking Kylo

-If author is comfortable with it, I’d like Rey and Kylo to be cousins, but it’s ok if they’re not

-The alphas joking about whose baby Kylo will end up with this time (even if he’s on birth control and this is not a real possibility)

-Affection; relationship details; the alphas encouraging each other & Kylo

-The alphas all have cocks (including Rey) and Kylo has a vagina (+/- a cock)