Not exactly Byakuya/Ulquiorra, you gotta squint for it.
Good Night
"You killed my sister."
"I know."
"You are a monster."
"I know."
Ulquiorra's green eyes looked impassively at Byakuya's black. There was only the icy glared that defined Byakuya as a feeling being, unlike the stoic, stone-faced Espada.
Even with those bewitching green eyes, those wasted pools of expression, bringing some life into that black and white body. Byakuya knew better.
Senbonzakura buzzed with excitement, the pink swords vibrating with the emotions his master refused to show.
"I have to kill you."
"I know..."
It only took a second. Ulquiorra didn't even try to evade or put up some resistance, he owed it to the man, they'd had their battles and now was the time to die already.
Against the whiteness of the sand and uniform, the blood almost looked pinkish. Byakuya leaned to over to close those green eyes, now dull, and whispered softly, as if to a lover.
"Good Night."
END
Sorry it's so short.