I knew I should pull away, but it was too fascinating not to watch as the mirror's magic started to work on us. For a moment, nothing happened. Then I started to collapse in on myself and I knew I was going to be my new brother's penis. It happened very quickly and there was no pain. I felt heat and pressure, then the pounding of blood through my entire body as sight, sound, and smell faded and existence focused on physical pressure and touch, and taste.
My foreskin was pulled back and forth and pressure made me hard, the pounding hot blood filling me and pushing me out within a huge hand. My entire body throbbed, the topmost portion sending waves of pleasure that became my only thoughts. The rubbing continued, getting faster, and building me to a climax until I lost all awareness in a blast of orgasmic joy. I felt the seed pump through me, once, twice. I could taste the semen, feel the jet of liquid through the core of my body. And then I slowly retracted, cool air around me until I withdrew into a warm cave.
There was a different pressure a taste of piss as my boy emptied his bladder. I was aware of him, of his existence, but only vaguely. I had to concentrate hard to get beyond a base awareness that was little more than sleeping between pissing and sex. I knew I had been human, knew I was now just part of my boy's body. Or maybe I was just the boy's cock, part of his body. It did not matter.
A voice stirred me when I should have been asleep. "Are you ready to stop being a cock?" It was Runt! I suddenly remembered everything. "I don't know what I can do to fix this, but I did warn you." Being fully aware again, I realized I was even larger than before. How long had I been a cock? Runt picke dup my question even though I could not speak. "The boy is now 19. You have been his cock for four years. I'm afraid you are at least going to be stuck being Chinese. If you can be human at all."
I found that I did not mind being the boy's cock, but it was such a basic existence. Four years? It could have been four hours to my limited awareness. I wanted to be human again. Runt responded "OK. I dont; know what we're going to end up with, but I'll give it my best shot!"