You needed only one small dragon to guard your plot of land in the forest. It was a common practice: small dragon hybrids were caught as children and sold on the black markets while they were still weak, harmless and trainable. You ordered one rare red dragon for yourself, paying for delivery to your home. But when they brought you a small cage, there were two children in it. One was clearly her small red dragon, and the other was an ordinary human. And only the identical black marks on their hands were evidence that they were mates.
Mates could not be separated, otherwise the dragon's soul will to suffer. There is no benefit from the suffering dragon. So you exhaled and paid double the cost for both children. And now they were both sitting on the carpet by the fireplace. The dragon hybrid clung to his mate excitedly, seeking comfort and support. The blond boy hugged the hybrid with his short hands, frowning at their "mistress".
"If you hurt him, I'll bite you."
Quietly and hoarsely threatened the thin human boy, pressing the shaggy head of the red-haired hybrid to his chest more tightly.