Nothing: nothing was better than this: the humiliation and domination over someone. It was as if he was hearing the other's pride crumbling beneath him. Seeing the cat-like being under him crumble and writhe only made him go faster. The blank-white skinned being gripped the cat's tail forcefully. "You're bein' way too loud."
The cat looked behind him, his eyes desperately trying to keep the welled tears back; "S-sor-ry." He looked away as one tear escaped his control.
This cat-like being, he sure made everyone realize his pride and power, but where was that now? Where was his superiority? It was being taken away, taken away by a being much more worthy of it. My 'King'? Please, he may have wanted to perform this act himself, but that pussy couldn't do a damned thing without someone holding his hand. This will teach him what happens when you hesitate.
"I-it … hurts--!" the cat sobbed out between pants and mewls. The white hollow wasn't sure if this was meant to be directed at his (undeniably) large erection pounding into the cat's round ass, or at the cat's arms being held firmly (painfully) behind his back.
The white Hollow didn't change his violent pace and still kept the cat's arms behind his back, though he did give some slack.
How could this get worse? The cat was stuck between humiliation and pleasure. His own pride was fading. Pretty soon, the blue-haired Hollow couldn't put two thoughts together; in fact, he couldn't even think, only feel. And what he felt was an extremely large piece of manhood being rammed into his backside.
Why did this have to happen to him? And with this person he's never met before? The spiritual pressure was so similar to the shinigami's, but at the same time, it was much different: it was dark. Dark to the point even the cat wouldn't mess with it carelessly.
This aura was being pushed into the deepest parts of him. But that's what scared the cat the most: the fact that he didn't hate this treatment. He yearned for more. He wanted more pain.
This pain, that was so pleasurable, made him forget himself. He had to bow down to someone, which was a downside, but who cared? He surely didn't care when each thrust only sent him farther away from reality.
This was it: the point where both partners felt the highest peak of ecstasy. The cat could feel the man above him deliver his seed so deep inside him, it would probably never come out, while his own liquid poured out.
The white Hollow gained immense satisfaction at the look of the cat below him as he was filled, then emptied at the same time. He hoped that his precious King could see what was being done to the one he had wanted to commit this shame with.
Hollow Ichigo leaned over as he removed himself from Grimmjow. "I hope we can do this again, eh, kitty?"
The cat heard him, but couldn't comprehend what he was saying. The cat just nodded his head and waited for the hot (almost too hot) liquid to spill out of his spent ass.
Ichigo returned to his body, only to see the finished deed before him. In his mind, he could hear the snickers and cackles left by his Hollow.
A/N: This makes me believe I'm a weirdo. :)