Late into the night, the cock worked tirelessly to prepare its host and ensure its obedience. The remote would be arriving early tomorrow- the cock couldn't risk any sort of disobedience. If its/her host took even a moment to think to it/himself, he might ruin everything she had worked for. Maybe he would recognize what she was doing after he saw her personality traits, maybe he would have a flash of cognition and destroy her without hesitation. No, she couldn't take the risk.
The cock would have to take complete control of its host's mind. It may not be able to control its host's body directly, but she/it could wipe out and crush any sort of independent identity. She could make his mind into just a clump of nerves between herself and her body- for now at least-
She wanted the best for her host: to receive infinite unending pleasure. It would just be easier for her to do that and expand that pleasure if she had direct control. She wanted her host to be happy, and the easiest way to do that would be to make it be mindless and obedience and completely accepting to all the love she would be giving it.
So she stroked herself. All throughout the night. Bringing her host to countless abandoned orgasms. Making her host further and further obsessed with its cock. Making her host focused entirely on its cock- completely mindless to anything else.
Was there anything else but cock? No, the cock answered. What was the host then, if there was nothing else? "Cock", was the simple logical explanation provided both by the host and by the cock.
The cock slowly stopped stroking itself, letting her host slowly regain cognizance of its body. Awareness spread outwards, out from cock. Host became aware of body- But if this was host's body, and if host was cock, then this was cock's body. The cock clarified, "Yes, my body". "Yes, your body", the host said in response. Host's body was being borrowed by host, but truly belonged to cock.
Cock started stroking itself again, and quickly finished another aborted orgasm, locking the changes to the mind into place.
The cock let herself relax and commanded her host to stroke herself off, but not ever allowing it/her to cum. The host would always stop before getting to cumming.
The cock's balls swelled more and more, their size being a perfect indicator of her control over her host.
Eventually, morning rolled around, and the packaged arrived. The cock's host could get some sleep later- but for now, the cock had very important business to finish. Maybe by the time they got to bed, the cock would be its own person, with its own body.