"Sebastian!" Ciel threw his head back in pleasure as Sebastian thrust inside sharply. The feeling of the older demon's cock brushing against that spot inside was overwhelming. Ciel felt a hunger roll through him, a hunger so deep, so passionate, so predatory...

Sebastian gasped as Ciel spun, his smaller hands grabbing Sebastian's shoulders. Ciel kicked Sebastian onto his back and crawled on top, his red eyes blazing with lust.

"You are mine," Ciel hissed. "My master." Something swelled inside Sebastian's chest. These words, so fierce, yet so tender, were unlike Ciel in every way. To call another man master was to show weakness and willingness. Sebastian had thought many things about this boy, but weak had never crossed his mind.

"I am yours," Sebastian agreed. "For all eternity." He gripped Ciel's hips and thrust up. Ciel gasped and rocked his hips against the man, his eyes rolling into his head.

"So good," he panted, his black nails piercing Sebastian's chest. "Don't stop..."

"Never," Sebastian growled. He thrust inside once more, the tip of his cock slamming into Ciel's spot. Ciel's eyes opened in shock and pleasure as he cried out in completion. His cum spurted onto Sebastian's stomach, covering his master with his love.

Watching his kitten cum, seeing the bliss twisting his beautiful face, was an image that would be burned into Sebastian's mind forever. Sebastian growled low in his throat and slammed his hips up sharply. His cock swelled and emptied inside his young lover. The demon essence sealed their eternal bond not as master and slave, but as mated lovers.

Ciel groaned and raised a hand to his eye. His mark glowed brightly, then twisted into a new sign, the mark of love and loyalty. Sebastian's hand glowed the same, and he wrapped it around his lover's neck. He pulled Ciel down, kissing him gently.

A promise of forever.

"How dare you put me in such a embarrassing outfit!" Ciel spun around in his tiny skirt, his face flushed in anger.

"You look delisious, young master." Sebastian chuckled as he watched his master spin around. He had promised to continue with his respectful butlership, but only on two conditions; he was allowed to dress up his young lord and be the master during their love making.

"Why the hell do you want me to wear this?" Ciel tried to pull the skirt down to cover his thighs. "I feel like a tramp."

"You were against dressing as a cat, so I decided to try something different," Sebastian explained. "You don't like it?"

Ciel blushed a bright red. "Sebastian...?"

"Yes, my lord?" Sebastian tilted his head at his master's odd behavior. Lately, Ciel had been blushing more often than usual. He was hiding something from Sebastian, and Sebastian had let this knowledge slide in order to not piss off his lover.

"I... I need to show you something." Ciel shuffled his high-heeled feet nervously. "I know what I am. Demon wise."

"You mean your true form?" Sebastian raised an eyebrow. His master was still getting used to the change, and to know that he was strong enough to unleash his true aura was impressive to say the least.

Ciel nodded and took a deep breath. The room darkened, and black smoke rose from the floor around Ciel's feet. A small shadow formed, a shadow with two points at the top and one long point at the back.

Sebastian gasped in amazment.

"Y-young master?" He stepped closer to the shadow, an urge to cuddle his lord overwhelming him. And he did just that.

"Nya~!" Ciel hissed loudly and clawed at Sebastian's chest. "You're hurting me, stop!"

The smoke disappated and the room brightened. In Sebastian's arms lay a half-human, half-cat boy. Ciel growled deeply as Sebastian petted his furry dark blue ears.

"You are the most adorable thing I have ever seen!" Sebastian's face reddened in happiness as he snuggled his precious kitten.

"I am not adorable!" Ciel opened his mouth and bit down on Sebastian's neck. His fangs pierced his skin and blood trickled out.

"My, my," Sebastian chuckled. "You are a fierce little demon cub, aren't you?" He lay Ciel onto the bed and crawled on top, his eyes feasting on the dark blue tail that swung into the air. He reached out and grabbed the tail, stroking it softly through his fingers.

"Nya..." Ciel arched his back, a purr ripping through his body. Sebastian shivered in pleasure at the sound.

"What a good kitty you are," Sebastian cooed. His hand traveled down his own body to unzip his trousers. "A good kitty deserves a treat. Milk?"

Ciel's eyes widdened, his face flushing with embarrassment. "Why you - !" Sebastian leaned down and kissed his master into silence.

"Are you sure you don't want any milk, kitten?" Sebastian teased.

Ciel blushed and kicked. Sebastian flipped over onto his back. He hummed as he watched his kitten licked a trail down his chest.

"Have as much as you want," he chuckled. "You are a growing cat, after all."

THE END

Sorry for the wait, people! My long SebaCiel fic is still under construction, but I thought it was time to put up something, so this was a little story I threw together over night.

I'm trying to get better with punquation (colens, semi-colens, etc.) to make my fics even better, but it's harder than it looks. If anyone has skill with these devils, I'd appriciate some help in editing my stories :)

Thank you all for the support! To show how much I luvs my readers, free cookies for everyone! *Cookies magically fall from the sky*

:::Warning - Cookies may or may not have razor blades baked inside:::

((┌|o^▽^o|┘)) *Dances*