I reached up and felt my forehead, snatching my hand away as it encountered hard bumps that had not been there before. "What happened?" I reached back and felt a tail swinging free from a hemmed hole in my pants. I could move the tail and feel my fingers on it. "I told you not to make me a demon!"
"No, you didn't." Runt chuckled. "But this is not my doing. You used some powerful magic to transform that thug into non-sentient life. Doesn't matter if he deserved it or not. It counts as evil magic, and that is making you into a Demon. Of course, I sorta stacked the deck a bit." He grinned. "The magic I gave you is demon magic, and the more you use it the more like me you will become."
I considered that. If what Runt had told me was true, even the cockroach kid would come back again in another life. "So that guy will be reborn when the last cockroach dies?"
Runt nodded. "Yep, stuck on this plane for another lifetime. But that was pretty much his path anyway."
"Can I get rid of the horns and tail by doing good magic?"
"I don't think so. I guess it is possible up tot he point you go full demon, but I never heard of anyone turning back once they started."