1 - 20 of 1,805 Works in Mark of Cain (Supernatural)
Navigation
Listing Works
-
MarginOfThought's Kinktober 2025 by MarginOfThought
Fandoms: Supernatural (TV 2005), Supernatural (TV 2005) RPF
22 Oct 2025
Tags
Summary
Series of ficlets & co. for the unofficial Kinktober 2025 list
Mainly SPN/Wincest -
Tags
Summary
In which you take the mark of cain instead of dean winchester.
Plot will mostly be changed since this is a major topic in the later seasons. But, i will mend it so that most of the plot stays original.
-
Tags
Summary
As the Mark of Cain tightens its grip on Dean Winchester, everything begins to shift — trust, loyalty, even love. Addison finds herself walking a knife’s edge between the brothers, where old wounds resurface, unspoken truths demand answers, and the bond she once believed unbreakable starts to crack.
The mission hasn’t changed: save Dean. But the cost of holding them all together — of keeping herself together — may be higher than she ever imagined. And the deeper they fall into the Mark’s shadow, the harder it becomes to tell who’s worth saving… and who’s already lost.
Tenth in my Addison Sloan Series.
Series
- Part 11 of Addison Sloan series
-
Tags
Summary
This fic is fully uploaded! (I wrote it entirely before I released it). This is a rewrite of s10e3 and it’s canon compliant until then, where it diverges. It has content in it that people don't consider canon, but not in a way that breaks the facts we see on screen before s10e3.
*
Dean’s grin is wild, with his chin and his very, very plump lips tinged in demon's blood. Chained and roped into the chair, he’s staring up at Sam and he still hasn’t broken eye contact.
Ignoring the warning bells in his head, Sam rather assertively grabs Dean by the chin and rolls his head around.
Dean doesn’t pull away at all. He’s always been a bit of a hedonist—he’s been training for this his whole life. Sam watches as Dean shamelessly breathes into the feelings. He looks high. Sam can’t remember a time he’s seen Dean look more desperate, more sloppy, more needy.
Sam’s thrilled. He thumbs Dean’s chin open, firmly, gently. “Stick out your tongue,” Sam says quietly. It’s not a request.
Dean immediately complies, a feral, adolescent mess, and his black-within-black eyes are somehow now even glassier.
“Your tongue’s fine.” Sam pulls away his hand.
"Sure, Sammy. Thanks."
Series
- Part 1 of Parasites Universe
-
Tags
Summary
The coldness of his brother's corpse bleeding into Sam's skin, the sensation of unnatural stiffness of limbs, and the pale, mottled skin were fresh in his mind as he set out to hunt for the demon parading in Dean's body. Four agonizing weeks later, with no more than 50 miles separating them, Sam's car suddenly breaks down, forced to take a brief detour at the nearest gas station.
All that took was one careless slip-up to screw everything up, one careless mistake. Hours later, Sam's waking up dazed in a public restroom, his 12-year-old self staring back at him in the mirror.
-
Tags
Summary
Being a fan from Ourverse, Chuck brings Y/N to the Supernatural world, but she’s determined not to be a pawn.
-
Worth to be saved by HadrianPeverellBlack
Fandoms: Harry Potter - J. K. Rowling, Supernatural (TV 2005)
18 Oct 2025
Tags
Summary
Jack looked around. From what Castiel had explained, Harry and his other self came from a parallel universe like the one Jack had mistakenly sent Mary and Lucifer to, as well as himself. Only, unlike the world Jack had ended up in, the one Harry and his other self came from was much better.
Series
- Part 27 of Cultober 2025
- Part 43 of Jerk, Bitch & Brat series
-
Tags
Summary
War is all Castiel and Dean Winchester have ever known. The former locked in a civil war that began with Lucifer's rebellion had not ceased since. The other, forced by his father into a fight against the darkest forces the world has to offer without the chance of winning, eventually descended into the deepest parts of Hell for a father, who doesn't even appreciate the sacrifice. One craves order and control, the other the power to carve his own path. Maybe they can help each other... that is, if they are strong enough.
-
Tags
Summary
Something wakes Dean in the middle of the night.
The bunker is silent, too silent — the kind of silence that feels wrong in your bones.
As he moves through the halls, the world starts to bend around him: familiar rooms, unfamiliar shadows, the echo of blood where there shouldn’t be any.
He just needs to find Sam. Maybe Cas. Maybe then, the world will make sense again.----------------------
Suptober 2025
Prompt for day 15: Nightmare
Series
- Part 15 of Suptober 2025
-
Tags
Summary
Day 14 of kinktober, prompt was choking/gagging
Settled at the end of season 9, Dean is struggling with the effects of the Mark of Cain while Castiel became the commander of a group of angels against Metatron. Though, Dean doesn't like the angel's new role, being very jealous of him, so Cas decides to prove his love for him in quite a drastic manner.
-
Tags
Summary
Dean tries to forget by reaching the bottom of a bottle
Series
- Part 13 of SPN 2025 Inktober Drabbles
-
Tags
Summary
When Ruby came, she offered a path to save Dean from Hell: the mark and the blade. Sam forced Dean to take it.
They couldn't have known what that would do to them. Or what it would make of them. -
Tags
Summary
When things get out of control with the Mark of Cain and Dean does the unthinkable, he finally gets the chance to go back and do everything right, but there are conditions and sacrifices he's not quite ready to face. Will it be worth it?
UPDATE! Now with a second (smutty) chapter!
2025 Update: I now have an amazing beta reader named Rachel! She is helping me go through my older fics and edit them, so you will see several of my older fics be uploaded again in the next few weeks!
-
Tags
Summary
When God’s power spirals out of control at the end of everything, Jack does the unthinkable—saves them all by sending himself, Michael, and Sam backwards through time. Now trapped in the past, with no way home, Sam is stuck reliving his Stanford years with a toddler Nephilim calling him “Dad,” and a furious, powerless archangel housed in an 18-year-old body.
To survive, they pose as college students raising a kid together. But the longer Michael lives as a human, the less he wants to go back. And as Jack grows, and Sam watches Michael stumble through parenthood, grief, and slow healing, both of them begin to realize that maybe being human isn’t a punishment. Maybe it’s a second chance.
Maybe it’s love.
Series
- Part 1 of Supernatural Time Travel
-
Tags
Summary
Dean breaks free from his chains whilst under the influence of the Mark of Cain. Castiel, human and defenseless, can only do one thing. Run.
Series
- Part 7 of Kinktober 2025
- Part 6 of Kinktober 2025 same canon
-
Tags
Summary
He guesses he should feel guilty lying to Sam about what he’s been up to these last few days but where the pit used to sit low in his stomach all he feels is empty gnawing hunger. Maybe the mark burned that away, too.
-
Tags
Summary
A series of events I like to think transpired during a cut away in supernatural’s season ten episode three
Or
Anyone else convinced Dean broke out of the chair and fucked Sam at LEAST ONCE?
I might really run with this if I can think up any more ideas :3
-
Tags
Summary
After beating Metatron half-dead, Dean tries to be honest with himself. Then, Sam and Dean have a (mostly) honest conversation.
Series
- Part 212 of Every First Time
-
Tags
Summary
Dean has the Mark of Cain, and he's losing control quicker than he thought he would. Sam just wants to help, but they both know it's useless
Series
- Part 6 of Kayden's Whumptober 2025
-
Tags
Summary
A few weeks after the events of "Soul Survivor," Deanna tells Sam to fuck her angel. Three's a crowd.
Series
- Part 1 of making a baby in a hole in the ground