Rey (and Finn) are platonically bunking in Poe's room. They're dancing around each other and headed towards something more, but they aren't there yet and they haven't talked about it. Poe is so pretty when he's asleep, and neither Rey nor Finn be a really good grounding in affirmative consent. They just figure he wouldn't mind them touching him/would say yes anyway. They get carried away.
Poe/Rey(/Finn): boundaries (two dub/non-con)
Poe wakes up to Rey riding him.