Eventually

It is only after Kiki has finished blowing all of your generals, has been whipped and spanked by your mystics, and has been made an anal whore of by your legions of footsoldiers, that you give her a chance for release.

You take her, in her puffy abused asshole, on the same balcony where you first revealed her new, trashy form. You explain to her, as she screams at the pain of just your hips clapping against her sensitive tushy, that from this moment on she will only be allowed relief when she has convinced you to fuck her. You explain that she will be putting her elevated conscience and potent magic to good use, as a whore for your entire army. And that if she pleases you enough, by degrading herself before you and your companions, you will allow her the occasional dalliance.

She sobs at the reveal of her new status, but she is too tortured by pleasure to do anything but moan and nod along. You grab her tits and squeeze them as you whisper in her ear.

"Beg for it, Keyleth of the Air Ashari."

She lets out a howl of disgrace and then opens her mouth to let out another obnoxious whine.

Instead, what comes out is her true voice, a voice restored to her while in the throes of passion. "Please, master, let me climax."

When she realizes what you have done, she glances back at you, shocked, humiliated, and...thankful? Stripped of all dignity, this act of making her sound normal when on the brink of orgasm must be interpreted as kindness within her maddened brain.

You give her a little kiss on her cute little button nose and then give her permission. Her screams echo throughout your kingdom, and you smile at the knowledge of your newest acquisition.