Poe does frown at the mention of Darth Vader, less because she's just brought him up and more because of the fact that if a much younger Leia is here then someone like that could be drawn here too. This place is enough to deal with as it is without the Empire running around, though it's not as if they'd have any more power here than anyone else. They're not much without their armies of Star Destroyers.

"I probably wouldn't mention a lot of details to her at all. She's just a kid, right? A Jedi kid, yeah, but she doesn't need to start worrying about all of that now." A normal life was probably always out of the question, no matter what universe she might be from or how different her life might be from the one he knows. Still, a kid deserves to just be a kid.

Her answer about what she's been doing is vague, it's not hard to tell that she's being careful about what she tells him, but it's hard to say why. He's leaning back in his chair now, arms loosely crossed, as he's not interrogating her. Not that he thinks he would get anywhere if he tried.

"Do I need to worry about any of the un-Sith Sith?"

He's had some very bad experiences with those in the past, though she might or might not know about that.