Quick smut warning once again for those who wouldn't want to read it!
For those who choose to read on, please enjoy! OwO

Ciel pulled me against him swiftly, gripping my waist in the process. My arms found their way around his neck with a smirk. "Are we going to play a little game, master~?" I purred softly in his ear.
A slight shiver went down the younger demons spine. "I like when you call me master. Continue and I might just reward you~." He hisses playfully through his teeth.
I grin wickedly while hearing his words. "Oh, you are quite the tempter."

He bit his lip before slipping his soft hands to my ass, grabbing it suddenly. I couldn't help but gasp and moan softly at the surprising contact.
"That's exactly what I want to hear from you, (Y/N)~." Ciel stated seductively, now nibbling around my exposed neck.
My eyes widen slightly. "You'll have to work harder than that now if you want to hear my sounds~." I tease, holding back a faint groan as his teeth grazed my skin. 

"Challenge accepted." The bluenette picked me up by my butt, forcing my legs around his waist. "This is an order,(Y/N), be a good girl and remove my shirt."
"Yes, master." I slowly unbutton his shirt, kissing down his neck softly. After I reached the last button, I slid the cloth down his shoulders and onto the floor.

Ciel's visible eye tracked my every movement.
"Can I take off your eyepatch, master?" I ask politely.
"Hm? Well, I suppose." He nodded.

With a smile, I undo the string tying the covering to his head, tossing it to the side along with his shirt. My (E/C) eyes met with his blue and purple ones.

"I love your eyes." I whisper.
A faint blush crept it's way into Ciel's cheeks as he chuckled. "You're not going to win with a compliment."

I shake my head, slightly messing up my (H/C) hair. "It was just an open thought of mine."
"Now, don't be so sweet suddenly." He pouted.

"I can be rougher." I use my levitation to pull his pants down with a smirk.

"That's a good girl~." The bluenette growled.
"Thank you, master." I giggle, now moving my hips down so his boner presses against my slit. The material from his boxers rubbed against my clit as Ciel got hard.
"Eager, are we?" He bucked his hips up.
I nod and bite my lip.

"You're such a good girl~." The bluenette whispered huskily in my ear; which only turned me on even more.
I felt myself getting wet from the excitement. "Don't tease me, master, just please fuck me~."

"Are you giving me demands?" He asked while pressing his hardened member against my area.
"N-No.." Pursing my lips, I hold back a soft sound.
"Y-Yes.." He mocked my tone. "Come on, then. Remove my boxers."

Ciel set me down and waited. I looked up at him before getting on my knees.
A smirk played at the younger demons lips when my fingers slid inside the hem of his remaining clothing, pulling it down and off.
Immediately, my eyes grow wide at his size.
"What? What is it?" He asked teasingly.

"You're rather big, master..." I admit.

"Let's see how much of it you can fit in your mouth, (Y/N)~." He growled, tangling his fingers in my hair.
I lick my lips and obey, using one hand to grab his member; I insert the tip in my mouth. I lean my head forward and take more of his dick down my throat.

His eyes widen when I take all of it. Ciel released a soft moan as my head began to move.
'Huh, this actually is easy.' I thought to myself before gripping his hips, increasing the speed of my head, causing me to suck harder.
"Fuck~." He groaned and tilted his head back. "I can't take it, I need to be inside you.."

I pull away and gaze up at him. "Please, put your hard dick inside of me~."

The bluenette helped me stand before gripping my shoulders, forcing my back against the wall once more. I jump up and place my legs around his waist again.
"Ready, baby?" He asked with a smirk.

"Oh, hurry up. I've been waiting far too long." I huff impatiently.
Without warning, Ciel thrusted his hips up, causing his length to go deep inside my pussy.
"Ahh, Ciel~!!" My eyes widen as I moan out.
"Your sounds are music to my ears~." The younger demon purred while bucking his hips in a rhythm.
I continue to groan, throwing my arms around his neck in the process. I couldn't even speak as pleasure courses through my body.
One of Ciel's hands moved up to my chest, grabbing my boobs. He teased and fondled them without slowing his thrusts. Once he pinched my nipple, I released a louder moan than before. "Ooh, m-master~! Don't stop, please!"

"That's it, moan for me~." The younger demon chuckled huskily. His tip slammed into a spot deep inside that caused me to scream in pleasure. "R-Right there~!! Hit right there~!"

"Where~?" He whispered, thrusting against it again.
"Fuck, there~!" My eyes roll into the back of my head from the overwhelming sensation while I continue to release loud sounds, knowing I was close to climax.

"Do you want to cum? Tell me you want to~." Ciel growled.

"I-I want you to make me cum, master~! I want you to make me feel good until I cum~!!" I plead, throwing my head back.
His lips began to kiss around my neck once again. "Good girl, begging for release~. I'll let you cum~."

He slammed himself faster in my soaking opening, harder than before. Without warning, I scream again and claw at his back. "I'm cumming~!!"

We both release at the same time. Ciel pulled out and came on my chest quickly.
I lean my head against the wall and pant, completely out of breath. The younger demon set me back down and sighed tiredly.

"Th-That was amazing..." I breathe.
He nodded in agreement. "Best birthday present ever.."

I wrap my arms around his waist. "I love you, Ciel."
He kissed me softly with a smile. "I love you, too."

"We should probably get dressed now for the party." I giggle.
"Can we shower first? I think we both need one." He pointed to our messy hair and sweaty bodies.
A blush finds its way onto my cheeks. "Good idea."