Shameless thread necromancy. I have a great story about Zaiobe from my first time GMing Jade Regent. Party was a tiefling samurai, a white dragon and a nightmare dragon (nerfed enough to be playable), and a kasatha kineticist.
Encounter her in the tower before exploring most of the rest of Brinewall, she immediately holds her hands up and holds out a hand, the samurai (who is infatuated with Ameiko) takes it and talks to her for a bit at first. Believes that she's on their side, etc. I was originally planning to have her betray them in the end but was a little sad to have to off her like that.
However, the kineticist takes a liking to her, and she begins to flirt with Zaiobe. They sneak up on Kikonu at night and manage to do half his health in the surprise round, and he misses on his one turn before they manage to kill him thanks to a critical hit.
Kineticist grabs Zaiobe's hand while I'm deciding whether or not to have her betray, and smiles. I decide (and, therefore, Zaiobe decides) not to betray them, and alter Zaiobe's backstory so that she is an unwilling servant of Pazuzu, only serving him temporarily to try to get her voice back. She hates him. She explains this to the party, and after clearing out the castle, they head to the Red Bishop to destroy him. Unfortunately, this does not return Zaiobe's voice, and Pazuzu is upset with her.
Kineticist is right there with her every step of the way. She begins making flirt checks and giving gifts, and it's kinda sappy but I roll with it and have Zaiobe get flustered, she's used to abuse relationships like the one she had with Kikonu. A little while after they've entered the first city in the Land of the Linnorm Kings, Zaiobe says yes to the kineticist's advances. It's also about the same time that Ameiko and the samurai get together, and the nightmare dragon ends up with Spivey after a lot of determination (I had said no to this like five times but he wouldn't give up so I relented and let him have her.) White dragon is foreveralone and tries to flirt with a bunch of NPCs who either turn out evil or the other party members kill.
A few levels later, and the Kineticist (whose element is Air) gains the ability to fly, and she and her harpy lover own the skies together! (shared with the dragons, of course)