Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/8487445.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      Kuroshitsuji_|_Black_Butler
  Relationship:
      Sebastian_Michaelis/Ciel_Phantomhive
  Character:
      Sebastian_Michaelis, Ciel_Phantomhive
  Additional Tags:
      Fluff_and_Smut, Dildos, Blow_Jobs
  Stats:
      Published: 2016-11-06 Words: 1891
****** My Little Kitten ******
by monochromekiss
Summary
     After Sebastian is injured aboard the Campania, Ciel feels guilty and
     promises to do anything he asks for just one night. But he might be
     surprised by just how much Sebastian asks of him.
 
It was a few weeks after Ciel and Sebastian had returned to the manor after the
incident aboard the Campania. Sebastian had spent most of that time resting in
bed to recover from his injuries, and Ciel had chosen to stay by his side as
often as he could.
Ciel felt overcome with guilt and worry after seeing his butler so severely
wounded for the first time. To try and repay his butler, he had told Sebastian
that once he fully recovered he could request anything of Ciel for just one
day. But Ciel was already starting to regret saying those words.
“I feel ridiculous...” Ciel mumbled with a pout as he kneeled in front of his
butler in his bedroom. His usual nobleman clothes had already been removed, and
the only items of clothing he now wore were tight black shorts, black stockings
and a small headband with cat ears on his head.
“Nonsense, young master. You look adorable.” Sebastian replied with a sly smirk
as he tied a small black ribbon with a silver bell around Ciel’s neck. He
leaned back with a smile, admiring his work. “So cute~”
“S-shut up! You cat obsessed fool!” Ciel huffed, his cheeks turning a pale
shade of pink.
“Young master, you make such a sweet little kitten.” Sebastian said as he
pulled Ciel into his lap, causing the silver bell to make a soft jingling
noise.
“I thought you would ask to keep a cat, not dress me up as one.” Ciel sighed.
“I couldn’t help myself, young master. I think this look rather suits you.”
Sebastian whispered softly. He let out a disappointed sigh as he placed one
gloved hand on Ciel’s hip. “But young master, you haven’t bothered to put on
the tail I gave you.”
“Oh, that... I couldn’t work out how to attach it...” Ciel mumbled.
“In that case, I’ll have to show you.” Sebastian replied as he lifted Ciel from
his lap, placing him back down on the floor. He stood up and retrieved the
furry cat tail that Ciel had left discarded on the floor nearby.
“It doesn’t have a clip on it or anything. It just kept falling out.” Ciel
huffed.
“Young master, you need to put it inside for it to stay in place.” Sebastian
chuckled.
“Inside my shorts? I tried that!” Ciel snapped, gesturing to the small black
shorts he wore.
“Not quite, young master.” Sebastian replied with a smirk as he bent down
behind Ciel. “We better remove these” he added, sliding the shorts down Ciel’s
pale legs.
“What for?!” Ciel gasped as he gave his butler a curious look.
“To attach the tail of course.” Sebastian chuckled.
Ciel turned around, his eyes widening in surprise as he saw what his butler was
doing. “Sebastian...” he whimpered nervously, watching his butler pour a bottle
of lubrication on to the hard plastic end of the tail.
“Just stay still, young master.” Sebastian said with a smirk as he grabbed
Ciel’s hips, pressing the hard plastic length between Ciel’s ass cheeks.
“Ah, wait! What are you doing?!” Ciel gasped, letting out a long moan as he
felt it enter him. “Huaah...you perverted fool!” he snapped.
“But young master, didn’t you say that would comply with any request of mine
for the day?” Sebastian asked, leaning in close to Ciel’s ear. “You’re quite
naive sometimes, aren’t you? Did you really not realise that this tail was also
a dildo?” he whispered, running his tongue along Ciel’s ear.
“Ah...Sebastian...stop...” Ciel panted softly.
Sebastian moved away from Ciel and sat down on the floor a few feet away from
him. His eyes wondered over Ciel’s body, flashing magenta for a brief moment.
“It really does suit you.”
Ciel let out a small whimper as he stayed on his hands and knees, the long
furry tail sticking up from his ass cheeks while the six inches of dildo were
buried deep into his ass. “Ahh...g-get it out of me...” he sighed between
pants.
“But you won’t look like much of a kitten without a tail, young master.”
Sebastian smirked.
“Ah, Sebastian! Please!” Ciel whimpered, his cheeks flushed dark pink as he
gave Sebastian a pleading look.
“Come here, kitten.” Sebastian cooed as he beckoned Ciel over to him.
“Damn you...” Ciel huffed under his breath, crawling on his hands and knees
towards Sebastian. His bell jingled softly and his furry tail swished from side
to side. “Ah...it...it’s moving inside me...” Ciel gasped, his ass cheeks
clenching tightly around the dildo.
“Just a little further, kitten.” Sebastian cooed with a grin.
Damn it...I hate him so much right now Ciel thought to himself as he struggled
to crawl the rest of the way. He let out a soft pant with every movement, his
cock gradually becoming hard. “Now please...” Ciel whimpered when he reached
him.
“Are you sure? My kitten looks as if he’s enjoying this.” Sebastian commented,
running his fingers along Ciel’s length teasingly.
“Hnnh...please! Just pull the stupid thing out!” Ciel groaned impatiently.
Sebastian smirked, pulling Ciel into his lap once more. He grabbed the furry
end of the tail and slowly pulled it out until only the very tip of the dildo
was touching Ciel’s hole. Before Ciel had a chance to do anything, he suddenly
shoved the dildo back inside him roughly.
“Ahh! W-what are you doing?! I said pull it out!” Ciel yelped, clinging tightly
to Sebastian’s waistcoat.
“I did pull it out. I simply decided to push it back inside afterwards.”
Sebastian replied as he pulled the dildo out once again, only to push it back
inside Ciel. “But you actually enjoy this, don’t you?” he whispered, softly
biting Ciel’s ear.
“Haah...s-stop...” Ciel panted, closing his eyes and gripping Sebastian’s
waistcoat tightly between his fingers. He arched his back and let out another
long moan as his butler began to fuck him hard with the dildo. “Uhh...s-stop
it! Ahh, it’s too much!” Ciel moaned loudly.
“Naughty kitten” Sebastian whispered, leaving soft kisses along Ciel’s pale
neck. “You like this, don’t you? It feels good, doesn’t it?” he asked,
forcefully pushing his tongue into Ciel’s mouth before the boy could respond.
Ciel’s eyes widened in surprise but he didn’t bother to try and pull away,
letting out muffled moans as their tongues entwined together in a passionate
kiss. He placed his hands on Sebastian’s shoulders, bucking his hips against
the dildo as his erection pressed against his butler’s stomach. He broke the
kiss suddenly and let out a loud cry as the head of the dildo brushed against
his sweet spot.
“Oh? So you like it there?~” Sebastian asked with a chuckle, thrusting the
dildo out harder and faster as he aimed for Ciel’s sweet spot.
“Huaaah! Ahh! S-Sebastian!” Ciel squealed, arching his back and clinging to him
tighter. “Uhh...I can’t take it! Ahhh! It’s too much!”
“Cum for me, my adorable little kitten.” Sebastian whispered.
“Uuuaaah! Sebastian! Sebastian! Ahhh, its coming oouuuuut!” Ciel yelped, his
whole body shuddering uncontrollably as he came. He panted heavily as Sebastian
pulled the dildo out of him, dropping it to the floor.
“Oh dear, young master. It appears I will need a new uniform now because of
you.” Sebastian sighed as he looked down at the splatters of cum staining his
waistcoat.
“It’s your own fault, you perverted fool!” Ciel huffed between pants.
“But young master, I believe it was you who made the mess.” Sebastian chuckled.
He pulled each of his white gloves off with his teeth, letting them drop to the
floor before he began removing his waistcoat, tie and shirt.
“Sebastian...what are you planning now?” Ciel asked hesitantly.
“I need to remove the uniform that you’ve soiled.” Sebastian replied. He
smirked mischievously as he removed his trousers and pants as well, his
erection already standing high.
“Sebastian...you...” Ciel gasped, his eyes wide as he stared at his butler’s
large cock.
“Come, lick it better.” Sebastian cooed, pulling Ciel close to him once more.
“What?! Get your hands off me, you perverted idiot!” Ciel snapped as he
struggled in Sebastian’s arms. “Unhand me now and stop these foul acts!”
“Young master, have you forgotten your promise so soon? Did you not say you
would fulfil any request I asked of you?” Sebastian asked, chuckling softly as
he traced the contours of Ciel’s chin with his fingers. “As an earl, you
shouldn’t go back on your word. It’s rather unbecoming.” he added.
Ciel let out an annoyed huff, glaring up at his butler one last time before he
bent his head low. He hesitantly ran his tongue along the shaft before swirling
it around the tip.
“Ah, yes... like that.” Sebastian sighed softly as he caressed Ciel’s hair.
“Now open your mouth.”
Ciel let out another huff, opening his mouth and taking the tip in slowly. He
bobbed his head up and down, licking and sucking the top half of Sebastian’s
cock.
“Good little kitten.” Sebastian sighed, pushing Ciel’s head further down on to
his cock.
Ciel made a small squeak of protest, placing his hands on Sebastian’s hips as
he tried to pull away.
“Now, now...I know you can take in much more than that.” Sebastian chuckled,
pushing Ciel’s head all the way down. “Isn’t that right my hungry little
kitten?” he asked, letting out a content sigh.
Ciel whimpered softly, trying to pull away desperately as Sebastian’s full
length filled his mouth. He made a few small gagging noises, his eyes watering
as Sebastian thrusted himself in and out of his open mouth.
“Yes, ah...that’s it...good kitten...” Sebastian panted, his eyes half lidded
as he kept a tight hold of his master’s head. “Hah... almost there...” he
sighed, placing both hands on Ciel’s head as he thrusted his hips even harder.
Ciel closed his eyes tightly, whimpering as he felt Sebastian’s cock throbbing
in his mouth.
“Aah, young master~” Sebastian groaned, shooting long white ribbons into Ciel’s
mouth as he held him in place. “Now swallow it.”
Ciel groaned, coughing and gagging as he finally managed to pull away. “You
damn pervert.” he huffed, cum dripping down his chin.
“Do not forget, young master. You agreed to this.” Sebastian replied with a
smirk. “You did well managing to swallow that much. But you missed some.” he
added, running a finger along Ciel’s chin.
“Shut up!” Ciel huffed.
“Lick it all up, like a good little kitten.” Sebastian chuckled as he gestured
towards his now dripping erection.
Ciel sighed, licking the cum from his chin before he darted his tongue out,
licking up the remaining cum from Sebastian’s length.
Sebastian chuckled softly, pulling Ciel into his lap once more. “You did well,
Ciel.” he whispered into Ciel’s ear.
“You said my name...” Ciel mumbled, his eyes wide in surprise.
“Calling you young master seemed rather too formal for this situation.”
Sebastian replied, softly nuzzling into Ciel’s shoulder.
“Very well, you can call me by name whenever we do things like this.” Ciel
huffed.
“Oh? You plan to do this again?” Sebastian asked with a smirk.
“I don’t mind doing such things with you. But no more cat dress-up or calling
me kitten!” Ciel snapped, his cheeks flushed pink as he pouted and looked away.
“Yes, my lord~” Sebastian replied.
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