1 - 20 of 356 Works in Adult Ciel Phantomhive
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One day, when he meets the life-weary Sebastian, Ciel will find a reason to fight. One day, when he meets the trapped under the ice Ciel, Sebastian will find a reason to live.
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Your rejection sucks, it’s killin’ my soul ;)
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They are all the same — stupid bastards pursuing their own goals.
Ciel is going through a painful breakup and wants to fill the void in his soul and between his legs (if the opportunity arises), and his suitor and sugar daddy with the sonorous name Sebastian wants to take a break from his boring wife, who, frankly speaking, has already pissed him off with her dullness and stinginess of mind.A romance, full of lust and sex — and it’ll be exciting. Until losing the head.
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Ciel trades her hand in marriage for Sebastian’s help, but he soon gets more than he bargained for. Updates every second and fourth Saturday of the month!
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Sebastian was once the one constant in Ciel’s life.
But what happens when the protector becomes the one who needs protection?
A butler who can no longer obey. A master who no longer commands.Their mission to Denmark was meant to be a political maneuver.
But within the walls of Fredensborg Palace, an old, dark power begins to stir—
and as a prince slowly dies in his sleep, Sebastian, too, begins to deteriorate.
Weakness does not suit him.
Yet his illness can no longer be hidden.And Ciel must take on a role he was never meant to play.
Between dependence and duty, closeness and distance, guilt and desire,
dream and reality, unfolds a game neither of them can win.
(Ciel is of age!) -
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Modern AU Story
In this modern AU, Ciel Phantomhive is a guarded perfectionist fresh out of high school, cornered by his parents into finding a summer job. What he expects to be a dull dogsitting gig at the Trancy estate turns into something far messier: Alois Trancy. Dramatic, reckless, and starved for connection, Alois disarms Ciel in ways he didn’t think possible. But what starts as reluctant babysitting shifts into stolen moments, complicated feelings, and a friendship that bleeds dangerously close to love.When both boys end up at the same university, their bond deepens—through writing clubs, theater rehearsals, jealous parties, and long nights under the stars. Yet, a secret shadows everything: Ciel was hired by Alois’ mother not just to care for the dog, but to keep watch over Alois himself. The truth threatens to unravel their fragile trust, forcing them to confront what love really means—between validation and vulnerability, fear and longing, betrayal and forgiveness.
JBTTOU is a story about intimacy in unexpected places, the ache of growing up, and two boys learning whether love is something they can trust each other with—or something that will tear them apart first.
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Sebastian is hiding something from Ciel and the later will do everything to discover what it is, whatever it takes. How will our dear demon will react ?
English is not my first language so sorry in advance.
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They say that demons can become angels again if they overcome their excessive egoism and fall in love with a human who has mutual feelings.
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They stand at a crossroads, tainted by the sorrow. While Ciel is torn between his fragments, Sebastian meets an angel in the flesh — it's a metaphor, but an incredibly accurate one.
[Russian translation available
HERE] -
Dancing with the devil by Rosemary_dreams
Fandoms: Kuroshitsuji | Black Butler, Kuroshitsuji (2014)
31 Aug 2025
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"Sometimes the darkest secrets hide beneath the most elegant suit."
Ciel Phantomhive is a twenty-year-old law student who has been carrying an unspoken anger and emptiness for years after the tragic death of his parents. When Sebastian Michaelis—a charismatic and disturbingly intriguing professor—appears in his criminal law class, something awakens within Ciel. Something dangerous.
Sebastian knows too much. He reads emotions too well. He strikes too aptly the invisible chords of pain and desire. Ciel doesn't know if this man will help him find the truth... or destroy him from within.
Entangled in a web of intrigue, secrets, and desire, they try to unravel the mystery of a murder from years past. But the closer they get to the answers—and to each other—the more they risk. And some truths are like a blade: once exposed, they refuse to look away.
A dark romance. A dangerous investigation. One step too close—and you're part of the game.
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The Love that Dare Not Speak its Name by QueenOfSmileIsle
Fandoms: Kuroshitsuji | Black Butler, 19th Century CE RPF, Literary Writer RPF
31 Aug 2025
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After saving celebrity playwright Oscar Wilde's latest premier from sabotage, Ciel and Sebastian ally with Wilde and his lover Lord Alfred “Bosie” Douglas to investigate their latest case: hunting a serial blackmailer dubbed “Eagle Eye.” But when the mission requires Sebastian and Ciel to go undercover as lovers, ruse and reality blur together, uncovering long-buried feelings. Meanwhile, Wilde's enemies plot his inevitable undoing. In a time when homosexuality is a crime– will Sebastian and Ciel's love prevail, or will they be dragged down with Wilde into ruin and despair?
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Sebastian makes a mistake and Ciel makes sure he atones to it.
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Ten years into the contract, exchanging his soul for revenge, Ciel finds himself hitting yet another milestone in building the life he will not get to keep.
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And it was maybe that, the faithful day his demon disappeared into a void never to be seen throughout an entire decade, that his heart finally gave in, broken to pieces to never fully be healed again.
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Trancy had requested he come to his estate. Urgently.
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Ciel wakes up not from kisses on the corners of his lips or warm sunlight, but from a more pleasant thing.
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Suggested on Tumblr: Sebastian wakes Ciel up with a blowjob.
[Russian translation available
HERE] -
Carried Away by the Current by TokiTokiToki
Fandoms: Kuroshitsuji | Black Butler, 原神 | Genshin Impact (Video Game)
14 Jul 2025
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“My name is Ciel, but from now on you will call me 'master'.”
His name means 'sky', and his eyes are a vast blue abyss. Sebastian thinks that when day comes, Ciel will drown in the blue, but he doesn't know yet that in this place, the sky doesn't exist.
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A dungeon inhabited by monsters: Sebastian falls into the Abyss, where he is picked up by Ciel.
[Russian translation available
HERE] -
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Shocking content: Diedrich, visiting the Phantomhive estate, accidentally passes by the Earl's bedroom, and what he sees is not a vocal lesson or a massage.
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Requested on Tumblr: Diedrich accidentally witnesses Ciel and Sebastian having sex.
[Russian translation available
HERE] -
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It seems like we met only yesterday, but in reality your whole life has passed.
A gangster paradise in the middle of a grey, dull London: the last demon left on Earth is looking for the soul of his one and only love in a big, merciless world, while a series of high-profile murders rolls through the city.
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AU, in which Ciel has to remember the old years of the Queen's Watchdog, running after criminals, one demon who stayed with him until the end, and a bunch of forgotten feelings.
[Russian translation available
HERE] -
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Being as incredibly long-lived as they are, demons see any number of reasons for humans to summon them, and just as many preferred forms for them to take.
A 13 year old butler under an adult contractor's employ is actually nothing that exceptional. Earl Ciel Phantomhive in general is -- or rather, his soul is, after what he's been through and what he seeks -- and definitely worth the trouble and potentially perverse reasons behind the choice.
Besides, being a creature that is practically desire embodied and thousands of years older than he currently appears to be, Sebastian doesn't really mind doing his master a late night favor anyway.
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It is one last bloody game played against Sebastian.
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↑ Read the tags/tldr/both, might not be your thing but it sure is mine.
Putting on a brave face, Earl Phantomhive spends the night in Buckingham Palace with his new wife, planning to consummate his marriage two nights late. Unfortunately, he is haunted by images of his butler with every move he makes on the English rose; still uncertain on whether he will be successful in maintaining intimacy in his marriage.
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“I truly pity her,” a moment of truthfulness took over him as he looked into the chocolate eyes of the only being he’d be comfortable engaging with sexually, “for she does not know what a monster I am.”
“A monster? You are no monster,” scoffed the demon, as if in disbelief that his contractor would even say such a thing, “you may be a liar, a cheat and many other unsavoury things…” He wanted to laugh at the Lord’s irritated expression but instead smiled, “But you are a good man.”
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tldr: this is actually just bottom!sebastian paradise but like cielizzy fuck and ciel hallucinates sebs the whole time, porn with plot, read the previous installments of the series if you haven't already (bc it's gonna be a bumpy ride)
Series
- Part 3 of The Devil's Favourite Flame