He Knew
The fox knew early on that he would be working with that surly little fire demon. Kurama knew he need not pick Hiei to be his partner, for that was out of his hands. For some reason his chosen God, his worshiped Inari, found great pleasure in bringing certain individuals into his life.
He was much older than his body let on when he first met Hiei that warm afternoon. The fox found red eyes to be guarded and haunting, features as sharp as the tongue, and he would smile later about that. They were all the same. Dark, inky hair against fair skin. It was just shorter this time, as was he. So this was his new host.
That was the only way he could describe it. A host. Every so often life would give him a certain person to latch onto and live his life around. They were all alike in some basic way, just modified to excel where the previous had lacked. Kuronue had been such a wondrous gift after the disastrous run with Yomi. Now this Forbidden Child. Would he be able to fill the gap that had formed with the loss of his precious bird?
That was all the fox could think as he patched the boy (for he couldn't be much more then that) up on his bedroom floor. Not of his mother coming in or of the mysterious Yukina the boy spoke of in his sleep. Only the future they would undoubtedly have together. Was this partnership that was sure to form going to be as costly as his last? Was he going to have bitter memories in a few hundred years about another dark haired demon, more child then man? The fox had lived long enough to know not to test fate however, and let it all go without much other thought. He would deal with that as it came.
Later, when Hiei continued to stop at his window, he never questioned him. He never asked why when the fire demon would strike up a conversation that left hints to a simple heist. Never inquired as to why Hiei was okay to have him tag along. He never raised his voice in concern when he realized he was growing his hair out, or that Hiei at one point mentioned the long, choppier style.
When Hiei set down ground rules about the partnership he himself had brought up out of the blue the fox was fine with not asking questions.
He understood. He knew.
This was how it would be. Hiei would be the new addition to his life, and he would be the tie to his demon self. With time the fox was beginning to understand that he couldn't be his demon self all silvery and fine (or in this case red and florescent) without something a bit darker at his side, to offset his colorful display.
Looking at the demon asleep upon his windowsill now the fox prayed to any gods close by that might hear him that maybe this time they had finally crafted the little demon into perfection. He liked this Hiei, he wouldn't mind having him stick around.