No - Let her ruin herself

You will suffer no rivals. She may only be human, but her drive and ambition will certainly become a detriment to your own glorious future. There is no chance that she will be able to resist the tome's influence, you are certain. You just smile as she does the unthinkable. As her fingertips graze the edge of the book's binding, energy lashes out from the gemstones covering it. Tendrils of arcanum in all colors of the rainbow warp around her and reach inside, suffusing her with the overwhelming strength of domination. She screams, yet her voice bends into a whorish moan, nipples stiff poking out through her robes. In a rush of bliss, she practically cums her brains out right in front of your eyes. She tries but fails to retract her touch. The tendrils keep her there even as more of them reach inside her head, unravelling her thoughts and sense of self.

With every burst of magic, more and more of Lana is washed away and when the arcanum dissipates, the book returns to its unassuming state. What used to be Lana sits there, dull-eyed and slack-jawed. Drooling with an emptyheaded smile on her face she mindlessly rubs away at herself, muttering incoherent neediness into the aether. She barely even registers you, that's how dull her senses have become, just a hollow shell of primitive desire.