Charlie was a flight attendant and your co-worker. She's 24 and had recently graduated from flight attendant school. She has been a lot of flights. 

You have to spend a lot of flights with her and the crew since you all work in the same airline. The flight that you were on was a 16 hour flight so the crew was provided with rooms for sleeping. 

Of course, sometimes in those rooms, some nasty stuff happened between the attendants.

You hear a knock on your room, "May I come in?" It was Charlie.