"Now that I'm in charge I think it's time I did what I wanted to do all along," Xan said. Coal felt a desire to please his new master and awaited his command. "Turn around and present your ass to me. And don't worry about being corrupted. As I am ordering you to submit rather than you doing so of your own free will you won't change any further."
Whilst that removed Coal's concern over becoming more demon like it didn't change the fact that he had to do as he was told. Coal turned around, got a his knees and raised his ass up for Xan. Coal felt a wet, slimy finger be shoved up his ass as Xan prepared Coal for the main event. That finger was soon joined by two, then three before they were replace by Xan's dick. It had seemed big when Coal was sucking it, but in his ass it felt even bigger. Coal felt pure ecstasy as he was fucked by the imp. His own cock pulsed beneath him and as soon as Coal felt his ass be filled with demonic seed it launched a volley of its own.
"I haven't had this much fun in years," Xan said. "I fully intend to make the most out of this arrangement. Now why don't you use that potion cabinet of yours and brew us up something to make this even more fun."
Coal had some ideas on what he could make. Perhaps he could make something to break Xan's control over him. Or he could shrink himself again. Or maybe make Xan bigger. What should Coal do?