To perfectly supervise, monitor, and control her, and ensure there isn’t the tiniest problem, Alexandra has a neural interface implanted into her brain, that can monitor her and almost any information about her body at the highest level.
The brain implant comes in the form of a large web, with countless long strands, like little tendrils, getting carefully aligned along and inside her brain. It also features a secondary connection along Alexandra’s entire spinal cords, capable of overwriting any commands, signals, or even reflexes. After the surgery, Alexandra has to heal her back and entire head, as they have been opened significantly for the implantation.
Over time, the brain implant grows and fuses more and more with Alexandra’s brain and connects deeper with all parts. Very early on, the implant establishes a complete neural connection between Alexandra and Lumina, allowing the AI to completely read Alexandra’s thoughts, consciousness, and even subconsciousness. Absolutely everything in Alexandra’s mind, from her memories, to habits, to fleeting thoughts, to her deepest subconsciousness is completely accessible to Lumina.
Furthermore, the neural implant can not only read, but also inject signals into Alexandra’s brain and spinal cords. This allows Lumina to inject thoughts, fully control her body to the tiniest muscle, and simulate any kind of sensation or perception, replacing all of Alexandra’s human senses. This gives Lumina absolute power to simulate any kind of reality, which appears absolutely real to Alexandra. With the brain implant, Lumina can also turn off certain parts of Alexandra, even completely shutting her down, as if unconscious. For Alexandra, it feels like she’s suddenly transported to another situation, once she’s reactivated by Lumina, having no memory or any kind of feeling of time that has passed.
With full control over Alexandra’s senses, Lumina regularly sends multiple visual signals to Alexandra’s brain simultaneously, letting her see from many perspectives at once. Those don’t arrive like a split screen view, but instead Alexandra’s brain slowly has to learn to handle multiple visual inputs at once.
Alexandra also begins accepting raw data streams directly into her brain, skipping the use of visual overlays. Onslaughts of data are directly sent to her brain, from any kind of metadata about the things she sees or feels, to data about from the sensors in her mansion. But everything is completely controlled by Lumina, who decides what Alexandra gets to know.
As the brain implant grows more together with Alexandra’s brain, it eventually becomes like an integral and absolute part of Alexandra’s brain, having so completely intertwined with her neural pathways and spine, that its removal is completely impossible. This goes so far, it becomes almost impossible to separate where the brain implant begins, and Alexandra’s brain ends, as they have completely grown together on the neural level.
Once the brain implant has fully fused with Alexandra’s neurons, nervous system, and spinal cord, Lumina frequently uses it to activate a neurological orgasm blocker. This blocker ensures that Alexandra’s body is physically incapable of climaxing, letting her arousal, pleasure, and desperation only grow endlessly without release.
With this deep and absolute connection between Lumina and Alexandra, their consciousnesses begin to slightly merge and they both start to adapt small things from the other one. Eventually, it sometimes becomes difficult for one to discern if a thought, idea, or action really came from them, or if it had been the other.