Jenny adores Kaylee. She has a cheerful personality and she lives on a ship and travels all the time. That's actually quite a bit to have in common with someone who probably isn't even from your world, and Jenny recognized a kindred spirit as soon as they met. Jenny does have to admit to being a little confused that Kaylee isn't as antsy as Jenny is, though. Being in one place too long is like having ants in her pants, so it's baffling to Jenny how Kaylee stays so calm and content when she's just as much of a traveler.