Title: Duty
Author: Shadow Arashi
Fandom: Bleach
Pairing: Ulquiorra x Grimmjow, Aizen x Grimmjow noncon
Word Count: 683
Rating: NC-17
Summary: Ulquiorra has faltered in his duty. Grimmjow pays the price.
Warning: Yaoi, noncon, lemon, bad!Aizen (or ambiguous!Aizen, I just don't know anymore myself), victim!Grimmjow.
Disclaimer: Bleach and its characters belong to Tite Kubo. I own nothing and am doing this for entertainment only and don't make any profit of it.

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"Nnnngh!"

Bright green eyes stared at the two figures sitting together on Aizen's throne, horror breaking through their usual apathy even as their owner went unnoticed.

Aizen's laugh echoed into the room as the man slammed back into the slender body sprawled onto his lap, the long mane of blue hair belonging to Grimmjow's released form swaying above the small of his back as he held onto the shinigami desperately.

"Come on Grimmjow," the man whispered just loud enough for Ulquiorra to hear "let me hear your voice."

Pale hands tightened into fist as his mate let out a shaky moan, the panther's tail wrapping around one of Aizen's legs as if looking for comfort as he tilted his head back, baring his throat.

"Ai- Aizen-sama..."

Ulquiorra's back hit the wall and he slowly slide down to the floor, his eyes still glued to the vision in front of him.

Aizen pulled the panther closer against him and Grimmjow buried his face in Aizen's neck with a chocked sound, ears laid back flat against his skull in distress and his eyes tightly closed as the man repeatedly pounded into his trembling form.

And Ulquiorra still watched.

Those cries, those flushed cheeks, those pleading eyes burning with fire... he was supposed to the only one to see it. Grimmjow was supposed to be his. So why...

"Very good Grimmjow," his lord petted his mate's soft cat like ears, his voice carrying louder than before and suddenly Ulquiorra grew cold as he realised that Aizen was staring right at him "I believe I can forget Ulquiorra's transgression this time. After all, you know I would do anything for my favourite Espada."

Ulquiorra's world collapsed.

Aizen gave a brief kiss to Grimmjow's parted lips then, still watching Ulquiorra with a dark smile as he bent Grimmjow backward against the throne, causing the panther to let out a cry, his claws digging into Aizen' s shoulder as the shinigami used the new position to thrust deeper inside him.

/Watch, and learn/ the warning was clear in Aizen's brown eyes, and Ulquiorra could only obey and observe numbly.

He had thought he knew despair. But now he truly understood its meaning as Aizen ripped his world apart before his eyes.

Despair was watching his mate being taken against his will. Despair was seeing the dried tear tracks on Grimmjow's cheeks and the blood on his tail that he hadn't noticed before. Despair was knowing his mate had to sacrifice himself because of him.

Ulquiorra stayed frozen on the ground, unable to move as Aizen finished with a low groan, his eyes never leaving the Cuatro's even as he came. He pulled out of the exhausted panther after a few minutes and Ulquiorra paled at the sight of his Lord's essence trailing down Grimmjow's thighs.

"You can have the rest of the day now." Aizen said as he caressed the panther's back tenderly, and Ulquiorra breathed again when those poisonous brown eyes finally turned away.

The former captain gently petted the Sexta's head one last time before he left, the touch oddly possessive and sending a shiver down Ulquiorra's back. Part of him wanted to tear his lord to shreds for touching what was his and dirtying a sacred bond, but the urge was quickly ignored when the man passed by him, a hint of his reiatsu crackling in the air.

"I truly dislike hurting your mate, as he is my favourite," Aizen's voice murmured into his ears, soft and low enough as to not alert even Grimmjow's keen senses "therefore I hope you have learnt your lesson Ulquiorra."

He didn't dare answer, merely pushed himself back onto his feet and ran into the throne room.

Ulquiorra ignored Aizen's fading footsteps as he gathered his mate into his arms, paying no mind to Grimmjow's shocked blue eyes as he cooed into the delicate feline ears.

"Ulqui-"

He stopped his lover's broken plea with a finger, tilting his chin up when the panther looked away in shame.

"Don't. It will never happen again."

He would make sure of that.

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A/N: I'M ALIVE. Barely. _ So sorry for the delay in updating, I was busy with... life, as usual. I'll do better next time.