What should I do with him? He's unwelcome, just as Starlight was, and I'm quite happy with what became of her.
Then again, he has also helped my love many times, he makes her happy. Does that not call for a reward, rather than a punishment? Perhaps death was too severe a treatment for the dragon that had assisted Twilight for all of these years.
I called out to him when he was alone, the time was drawing close and it would be now or never that he got his moment of happiness. I was benevolent, and chose to grant him his spoils.
I introduced him to the walls of the castle, much as I did Starlight, but instead of pulling him inside, I let him enter of his own accord. I appealed to his gluttony, showing him my glorious gemstones and allowing him to eat his fill. It was torture, of course, feeling parts of me be ripped away forever, but I was used to that feeling by now, in a manner of speaking.
As he succumbed to his avarice, he began to grow, morph, and mature. It was something I hadn't anticipated; for all of my years and experience I knew little of dragon physiology.
As he sated his appetite, the strange qualities of my crystals seemed to react with his body, making him stronger and more ravenous with each shard he shoved down his gullet. He was easily five times his original size by now, and still he grew, his teeth becoming more angular and his eyes becoming more slanted. I felt his thoughts, they became more carnal and primitive with each gem he ate, but no amount seemed to sate his appetite.
I was unsure what to do with him. The easy solution would be to rescind my reward and instead opt to do away with him, but my morals conflicted with it. He was a good dragon, I would not interfere. Whatever he did, surely he would not harm my Bearers, he loved them as I did.
Taking my thoughts away from the matter, I looked outside to see them drawing near. Two of them were battered, one almost broken. I might have smiled if I were able. Their bodies were but fleshy carcasses, it was their spirits that interacted with mine, that begged to be a part of me. I would absorb them into myself, and we would together live in harmony.