Poe and Finn have been together for a while, and whilst there's nothing wrong with their sex life, it's all been pretty vanilla thus far. So Poe starts asking Finn if there are any particular fantasies he has that they could use as a starting point for exploring what kind of thing Finn might be into.
Finn's kind of embarrassed and reluctant to share, because he's really only got the one... and that is that he'd kind of like Poe to dress up as/pretend to be Hux.
See, growing up as a stormtrooper, Finn was bombarded with propaganda and speeches and the like all the damn time, and as he's about 10 years younger than Hux, his 'sexual awakening' lined up more or less exactly with Hux's rise to prominence in the Order. The upshot being that even though he knows it's pretty messed up, he ended up with a bit of a thing about Hux, and it's the only non vanilla thing he knows he's into.
Poe is taken aback, but he's an understanding sort.
Finn/Poe + Finn/Hux (sort of) - roleplay and fantasies
Finn's kind of embarrassed and reluctant to share, because he's really only got the one... and that is that he'd kind of like Poe to dress up as/pretend to be Hux.
See, growing up as a stormtrooper, Finn was bombarded with propaganda and speeches and the like all the damn time, and as he's about 10 years younger than Hux, his 'sexual awakening' lined up more or less exactly with Hux's rise to prominence in the Order. The upshot being that even though he knows it's pretty messed up, he ended up with a bit of a thing about Hux, and it's the only non vanilla thing he knows he's into.
Poe is taken aback, but he's an understanding sort.