Sastiel Big Bang

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Challenge
Name: Sastiel Big Bang
Date(s): 2013 - 2019
Moderator(s): sastielbang_mod, scbb_mod, oddsocksandstuff, trisscar368
Founder: sastielbang_mod
Type: Big Bang - fanfiction, fanart
Fandom: Supernatural
Associated Community:
URL: https://sastiel-bigbang.livejournal.com/
https://sastielbb.tumblr.com/
Click here for related articles on Fanlore.

Sastiel Big Bang was a big bang challenge in Supernatural fandom focused on the pairing of Castiel/Sam Winchester. Writers had to write a story that was a minimum of 10,000 words, or a mini-bang with a maximum of 8,000 words.

Masterlists

2013

Supernatural

Title: The Art of Tying Bonds With Scissors
Author: lysanatt
Artist: kidezt (tumblr)
Word Count: ~60,000
Rating: E
Characters & Pairing(s): Sam/Castiel, Dean/Gabriel, Sam/Lucifer (no consummation), other pairings mentioned. Anna & Sam friendship. Death, Tessa, Ash, Samandriel, Adam, Zachariah, Jo, Inias.
Warnings & content: A/B/O (no Bs, though), arranged marriage, attempt at coercion (not between Sam/Cas, Gabriel/Dean). Romance.
Summary: When Sam unexpectedly bonds with Lucifer, a high-ranking traditionalist alpha, Sam's beliefs about free will are put to the test. But bond or no bond: there is no way Sam will let biology get the better of him. When Castiel, Lucifer's younger brother, makes an offer that Sam literally cannot resist, Sam knows it's his chance to be free of Lucifer for good. Still, living with one mate while being unhappily tied to another is like tying bonds with scissors: it's doable, but it certainly isn't easy.


Art by sammycolt24 created for the fic Beneath the Hollow Tree

Title: Beneath the Hollow Tree
Author: pockyisgood
Artist: sammycolt24
Word Count: 23,300
Rating: M
Characters & Pairing(s): Sam/Castiel, Dean/Benny, Balthazar, John Winchester, Gabriel, Raphael, Meg Masters, Ruby, Crowley, Michael
Warning(s): none
Summary: In a world of fantasy and prejudice, one faun changes everything when he saves the life of his sworn enemy, a werewolf-like creature names Sam. When the Wolves and the herbivore creatures start itching for war against one another, it's up to Sam and the faun, Cas, to stop it before the entire forest is destroyed.


Title: One Fall Day
Author: wildirerose
Artist: bangyourhammer (tumblr)
Word Count: 15k
Rating: E
Characters & Pairing(s): Sam/Cas, Dean
Warnings: chronic illness/pain, mild D/s dynamic, explicit sexual content, dirty talk and gratuitous use of pet names, impotent!dom!Sam, sub!Cas, fluff (like, fluffier than a bag of stuffed animal guts levels of fluff), established relationship
Summary: Sam takes Cas to an amusement park on a day when the pain that has wracked his body since the trials - for the last three years - has receded enough for him to leave the house. Holding hands and sharing candy apples, they remember the moments that shaped their relationship. (Set after Season 8 finale; so AU for Season 9.)


Title: Hallelujah
Author: pyritedark
Artist: playthefool
Word Count: ~68k
Rating: M
Characters & Pairing(s): Sastiel, mentions of past Meg/Castiel, mentions of Dean/Lisa, lots of flirting, Sam Winchester, Castiel, Gabriel, OC Tricksters (Coyote, Brer, Daji, Ananzi), Dean Winchester, Gary Funkel, Samandriel, Jimmy Novak, Meg, Crowley.
Warnings: Mentions of suicide. Descriptions of wounds after torture. Sexual situations, but nothing explicit. Rampant innuendo.
Summary: After a terrible incident, Castiel cuts himself off from his past life and makes a new one for himself in a New England city. There he meets Sam, a talented musician whom he forges an easy friendship with. But when their pasts start to catch up with them, they have to figure out what exactly it is they're running from. And what will happen if they stop.


Title: Sam and Cas Go to Vegas
Author: paperwaster1
Artist: reggie11
Word Count: 17,578
Rating: T
Characters & Pairing(s): Sam/Cas
Warnings: Set after Season 8, but events vary wildly from the Season 9 premiere.
Summary: Stir crazy after too many days in the bunker with an overprotective Dean, Sam and Cas Go to Vegas for a little R&R. They get that along with a visit from an old friend and perhaps some feelings they didn't expect.


Title: I Can't Explain
Author: caramelkaren6
Artist: evian_fork
Word Count: 15,476
Rating: T
Characters & Pairing(s): Sastiel (Sam Winchester, Castiel), Dean Winchester, Crowley, mentions of Kevin
Warnings & content: slight violence/gore (I've been told it probably doesn't even need a warning but I'm gonna be safe)
Summary: When Castiel is learning how to be human and how to be a better hunter, he begins to notice that he feels different around Sam in a way he can't pinpoint. On the other hand, Sam tiptoes around his feelings for Castiel as they continue to grow closer - until something happens that makes him reevaluate his approach.


Title: Trinity
Author(s): septembers_coda
Artist: mask_of_red
Word Count: 26,000
Rating: E
Characters & Pairing(s): Sam/Cas, Dean/Cas, Sam/Cas/Dean, Bobby, Michael, Lucifer
Warnings: Perceived infidelity. Ummm… plenty of porn, including a threesome. Elements of mildly dubious consent and dom/sub, but it’s all pretty nice, really. One image (behind a cut) is NSFW.
Summary: While Sam and Dean were parted, Sam and Cas became lovers, when Cas answered Sam’s mysterious, erotic dreams that he received like prayers. But a wedge is thrust between the lovers when Dean starts to have the dreams, too, and the three of them must put their romantic drama aside if they are to prevent the apocalypse. They despair of doing so, until Cas reveals a long-buried, blasphemous secret of angelic power, a slim thread of hope that could give the three of them the strength to save the world… if it doesn’t kill Sam.


Title: The Chest Breathes Fire as Needed
Author: trickylady
Artist: the_realduck
Word Count: ~20k
Rating: M
Characters & Pairing: Sam/Cas, Dean, Bobby, Zachariah; mentions of Anna, Gabriel, Chuck, Balthazar and Lucifer.
Warnings: major character death, angst, violence, verbal/physical/sexual abuse, slash, non-con, underage (16-17), mental illness, swearing.
Summary: Sam and Castiel are best friends who touch a meteor rock during Dean's party at a cabin. Soon, they realize it gave them something they may never fully be able to control, and Dean tries to help contain what he feels is his fault.


Title: Acts of Love and War, or Sam Winchester Wants You; Join Heavens Army Today!
Author(s): velocitym1
Artist: kavkakat
Word Count: 35,000
Rating: T for canon typical violence
Characters & Pairing(s): unrequited Sam/Cas
Warnings: limited violence
Summary: Sam ends up in heaven instead of in the cage, only to discover there's a war going on. Cas wants to keep him out of it but he's not going to let his friends fight alone, especially when a prophecy hints at Cas's death. The thing is, Angels aren't the only ones in heaven who can fight.


Title: Not Another High School AU
Author(s): jadekirk
Artist: nicole_sill
Word Count: 28880
Rating: T
Characters & Pairing(s): Sam, Castiel, Dean, various OCs, Sam/Castiel, OMC/Dean/OMC, Sam/OMC, Cas/OMC
Summary: Dean, Sam and Cas get de-aged and they end up having to attend the local high school. Throw in misunderstandings, a Moonlighting inspired Shakespeare play, two rock stars, Sam's newest nemesis and a crazy teacher or two and it becomes a recipe for disaster.


Title: What Separates Us
Author(s): moondansr
Artist: kezzymai23
Word Count: about 18,000
Rating: M
Characters & Pairing(s): Sam/Castiel, Dean/Castiel
Warnings: None
Summary: In a world where demons, angels and humans all live on earth together, half demon, half human Sam loves angels, but angels don't want anything to do with him. When his half brother Dean starts dating an angel named Castiel it's no surprise that Sam falls for the angel. What is surprising is the continued relationship between Dean and Cas. Sam doesn't know what to do about the feelings he's having or how to explain them to Dean. He doesn't even know if he should try.


Title: I Was Afraid When I Met You
Author: apentomyhead
Artist: ameorryluo
Word Count: 44,429
Rating: M
Characters & Pairing(s): Sam/Castiel, Balthazar, Dean, Gabriel, Ellen, Sam’s Stanford friends, Crowley
Warnings: asexuality; acephobia; dealing with sexuality; social anxiety;
Summary: Sam, a second year pre-Law student at Stanford, meets a strange but interesting guy at ‘Party Man’ Gabriel’s house party, and decides he wants to get to know him more. Castiel is a Media & Film studies major whose passion for movies is nearly overwhelming. They’re an unlikely pair with an unlikely relationship. After revealing something he’s kept hidden from Sam, Castiel has a deep fear of rejection but Sam is determined to make it work.


Title: When The Rocketships All Fall
Author: verucasalt123
Artist: evian_fork
Word Count: ~16,700
Rating: E
Characters & Pairing(s): Sam/Castiel, Dean, Michael, Bobby, Gabriel
Warnings: established relationship, explicit sex, angry sex (could be seen as dub-con), angst, apocalypse begins, canon-typical violence, recreational drug use, religious themes.
Summary: When Dean says “yes” to Michael, Sam and Castiel try to find a way to get him back. Sacrifices are made, relationships become stronger, and help arrives in an unexpected way.


Title: run with the hare and hunt with the hounds
Author(s): flibblesd
Artist: she_llama
Word Count: 55,400
Rating: M
Characters & Pairing(s): Sam/Castiel, Dean, Anna
Warnings: violence
Summary: Sam is fascinated by the angels. Unlike the other hunters, he'd much rather study them than chop off their wings, find out what makes them tick, where they came from, why they can't talk. Or at least, he thought they couldn't talk. When Dean is brought back to camp, comatose from an angel getting inside his head, Sam sets off to find the one that did it. The last thing he expects is to find it saving his life, tilting its head with narrowed blue eyes, and saying, "Sammy?"


Title: The Heart of Sam Winchester
Author: slashluv18
Artist: velocitym1
Word Count: 29,159
Rating: M
Characters & Pairing(s): Sam/Castiel, Dean/Lisa, Sam/Dean, Crowley, Campbell family, General Season 6 characters
Warnings: Some dialogue from the show has been taken, Alternate Season 6, bottom!Sam, incest, het, slash
Summary: Sam lets Dean go despite how much he loves his brother in a non-brotherly way. Castiel is helping out as he hunts alone. What's up with Crowley and Purgatory? And is Castiel really trustworthy? Sam hopes so, especially with the new feelings developing.


Title: Holly Jolly
Author: kototyph
Artist: kidezt
Word Count: 24,591
Rating: soft R
Characters & Pairing(s): Sam/Castiel, strong hints of Dean/Gabriel
Warnings/Tags: Alternate Universe - Canon, Stanford Era, Christmas, No Seriously Christmas, Holiday Schmoop, Traditions, Bobby's House, Demons, Action/Adventure, Castiel in Love, Sam in Denial, Gabriel is a Gourmet Chef, And Dean Plays the Tambourine, Art in Fic
Summary: “Cas,” Sam says, looking horror-struck. “You can’t be alone on Christmas.”

Gen

Title: Brothers of the Road
Author: dracox_serdriel
Artist: wifihunters
Word Count: Approx. 21,000 - 22,000
Rating: M
Characters & Pairing(s): Sam Winchester/OFC, Sam Winchester, Dean Winchester, Castiel, Charlie Bradbury, Don Stark, Maggie Stark, Garth Fitzgerald IV, Doc Benton, Gary Frankel, Eve, Gilda, Benny Lafitte, OMCs, OFCs
Warning(s): language, graphic violence, innuendo, depression, angst
Author's Note: Brothers of the Road can be read as a standalone story, but there are references to original characters and events from the episodes in Season 9 Fan Fiction (S9FF).
Summary: Dean Winchester is missing, leaving Castiel and Sam Winchester on the warpath to figure out who - or more aptly, what - has taken Dean captive.


Title: Elements of Journalism or: How to Find Friends and Alienate Your Superiors
Author: story_monger
Artist: reggie11
Word Count: ~72k
Rating: G
Characters & Pairing(s): Sam & Castiel friendship, Dean, Jo, Charlie, Anna, Kevin, Bobby, Michael, Raphael, etc
Warnings: None
Summary: Sam Winchester needs a job. He's a news reporter who recently stepped down from his comfortable position with the Los Angeles Times after his mix-up in a questionable case of journalism ethics. Luckily for him, his brother and Bobby think they can snag him a job at the New Eldritch Herald, a small-town newspaper in the middle of Kansas. And they do. And Sam meets Castiel Novak: the photography editor who everyone agrees resembles the Grumpy Cat meme. Several things happen after that: Sam and Cas develop a friendship, Cas keeps photographing everything, Dean and Sam try to figure out how to be brothers again, Sam starts to realize Editor-in-Chief Michael Alef sort of hates him, and everyone partakes in a hefty dose of vigilante journalism.

Crossover (SPN/RPF)

Title: This Is Now My Home
Author: fallofvikare
Artist: evian_fork
Word Count: ~16000 words
Rating: M
Characters & Pairing(s): Jared/Castiel, Aldis Hodge, Genevieve Cortese, Jensen Ackles, Sherri Padalecki, mentions of Chad Michael Murray
Warnings: none
Summary: Castiel's a fallen angel who falls in Jared's backyard one night, and Jared takes him in. Along the way, they adopt a cat, wade through (metaphorically) troubled waters, and maybe fall in love.


Title: A Cardinal Affair
Author(s): shinigami_yumi
Artist: dumblemop
Word Count: 56966
Rating: E
Characters & Pairing(s): Sam/Misha, minor Sam/Jess, Sam, Dean, Misha, Vicki, Jess, Rebecca (Misha's mom), Brady, Darius, some original characters
Warnings: Minor character death, language, minor violence, a lot of UST, explicit sex
Summary: The Stanford AU in which Misha and Vicki go to Stanford instead of University of Chicago and meet Sam Winchester. Sam and Misha are assigned as roommates and really hit it off. It's not long before the flirtation stops being a joke, but by the time Misha realizes his feelings are no longer platonic, Sam has started dating Jess. Meanwhile, Sam's nightmares start up as a demon-possessed Brady begins killing people, Misha's mother is attacked by a Skinwalker, and a Halloween campout at a haunted house goes terribly wrong.


2014

Supernatural

Title: Bewitched
Author: aria_lerendeair (tumblr)
Artist: sabrielotp (tumblr)
Characters & Pairing(s): Sam Winchester/Castiel Novak, Dean Winchester
Rating: T (swearing)
Word Count: 8,307
Warning(s): Hogwarts AU, Post-HP World, Teen Angst
Summary: Sam's dealing with the trifecta of issues. He's got his OWL's this year, his brother is off doing dangerous Auror-training and he has a crush on his brother's best friend, seventh-year Castiel Novak. He's never going to make it through the year!


Art by uke_sama_sensei creatd for the fic Changing Everything

Title: Changing Everything
Author: letmegeekatyou (tumblr)
Artist: uke_sama_sensei
Characters & Pairing(s): Sam Winchester/Castiel Milton. Side pairings: Charlie Bradbury/Dorothy Baum, Anna Milton/Jo Harvelle, Dean Winchester/Lisa Braeden. Other characters: Kevin Tran, Ben Braeden
Rating: G
Word Count: 19,329
Warning(s): Mild PTSD
Summary: Castiel’s store is full of books that have been well-loved. He isn’t interested in books that find their way easily in the world; he prefers the damaged ones. His own damage, he keeps hidden away: he keeps his shop neat and his apartment private, keeps his life orderly and small. Small until he meets Sam, the not-so-small owner of the bakery next door, that is. Sam is outgoing and happy and ignores Castiel’s “No Food or Drinks” sign. He’s got his own damage, but he’s kind, and maybe, Cas thinks, he can make room for someone else in his orderly little life.


Title: The Start Of Something
Author: safiyabat
Artist: evian_fork
Beta: stolen_voices
Characters & Pairing(s): Sam/Castiel
Rating: R
Word Count: 23,447
Warning(s): Violence, suicidal ideation, depression. Some sexual content. Please note that Dean is either a demon or recovering from having his twisted demonic spirit straightened back into a human soul and as such presents as neither cuddly nor sweet.
Summary: Castiel knew that Metatron killed Dean, but he expected his friend would make it to Heaven. When that doesn't happen he reluctantly joins forces with Sam to try to figure out what happened and how to fix it. He surprises himself by the pleasure he takes in working with Sam and soon comes to the realization that he loves Sam for his own sake. Convincing Sam of that, or that such a thing is even possible, may prove even more of a challenge than hunting down a super-demon and curing him.


Title: Castopus; or Twenty-Thousand Leagues Out of the Sea
Author: kidezt (tumblr)
Artist: disreputabled0g (tumblr
) Beta: shinigami_yumi & story_monger
Characters & Pairing(s): Sam Winchester, Castiel, Dean Winchester, Jesse Turner, Bobby Singer, Patrick
Rating: T
Word Count: 8,934
Warning(s): Innocent tentacles and painful octopus jokes.
Summary: AU from 5x06 “I Believe the Children Are Our Future”. While trying to kill the anti-Christ, Cas gets turned into a tiny octopus. After Jesse disappears, everyone involved is returned to normal... except one.


Title: Consequence of Sound
Author: aen_naazh (tumblr)
Artist: arosepratt (tumblr)
Characters & Pairing(s): Sastiel
Rating: NC-17
Word Count: ~12k
Warning(s): Dark!Sastiel, soulless!Sam, smut, nsfw images
Summary: Castiel should have known there was something different about Sam. Everything down to the look in his eyes was strange and wrong but he couldn't bring himself to walk away. Between the war in heaven and the deal he was forced to make with Crowley, Sam seems to be all he has to hold onto. So he isn't the bright eyed boy Castiel met years ago, at least he has him.


Title: Detached
Author: moonyj4m
Artist: apentomyhead (tumblr)
Characters & Pairing(s): Sam/Cas
Rating: T
Word Count: 8,329
Warning(s): dissociation, discussion of consent, self-harm, mention of past drug use
Summary: Following the events of 9.10, Sam and Cas head to the bunker. Sam doesn't feel quite like himself after being used as a vessel and has some trouble to be at peace again with the idea that Cas is still wearing Jimmy Novak's body.

RPF

Title: Slices of Orange
Author: shinigami_yumi (tumblr)
Artist: tomcat941 (tumblr)
Characters & Pairing(s): Misha Collins/Jared Padalecki, Jensen Ackles, Matt Cohen, Mark Pellegrino
Rating: E
Word Count: 25,015
Warnings & content: Cat and dog biology, mentions of racism, implied major character death
Summary: In a world where humans have either some canine or feline traits, war has divided the Konu and Chatri for centuries. When Jared, a confectioner in the Konu city of Chi'an, offers a homeless man food and shelter on a stormy night, the last thing he expects is to discover that Misha is Chatri. Realizing they are not so different, Jared allows Misha to stay for the winter, but Misha has a bigger secret, one that no amount of love can change.

2015

Title: Hush
Author: posingasme
Artist: ashaht
Characters & Pairing(s): Castiel/Sam, Lisa/Dean, John, Mr. Wyatt, Ben
Rating: Teen
Word Count: 20,001
Warnings: none
Summary: Sam is a Stanford-educated janitor at the school where Dean is a gym teacher and wrestling coach, and where a certain history teacher's classroom is always a complete mess.


Title: the making, breaking, and remaking of sam winchester
Author: iamremy
Artist: juniperraso
Characters & Pairing(s): Castiel/Sam Winchester, Dean Winchester, Bobby Singer, Alastair, Crowley, Jo Harvelle, Charlie Bradbury, Gabriel
Rating: T
Word Count: 30.3K
Warnings: Graphic Depictions of Violence, Minor Character Death, mentions of mental illness, mentions of hallucinations and side effects of drugs
Summary: AU. Sam Winchester and Cas - two detectives who haven't spoken in a year, and are both now assigned to the same case. As partners. It's not a question of if there is going to be a huge blowout, but a question of when. Especially because Sam doesn't think he can ever let go of past transgressions against him, and Cas isn't helping any by pushing the subject.


Title: A Perfect Shot
Author: Aria Lerendeair
Artist: uke-sama
Characters & Pairing(s): Sastiel (Sam Wincheter/Castiel Novak), Debriel (Dean Winchester/Gabriel Novak)
Rating: Explicit
Word Count: 6,806
Warnings: Sam Angst, Laser Tag, Explicit Sex Scene, Adrenaline Sex
Summary: Sam hates that Castiel makes laser tag look so fucking easy. Just because he was a professional sniper in the military didn't mean he could just come in and wipe the floor with he and Dean every week. Except he does. Until, of course, Sam figures out a way to beat him, and when he's riding the high of the adrenaline rush, he ends up in bed with Castiel. Which leads to confessions and well, maybe Castiel doesn't see him as a kid after all!


Title: Sentimental Iterations
Author: Fabella
Artist: Beignetbenny
Characters & Pairing(s): Castiel/Sam Winchester, Castiel, Sam Winchester, Dean Winchester, Castiel & Dean Winchester friendship
Rating: Explicit
Word Count: 33,361
Warnings: Character Betrayal, Temporary Character Death, Show-level Violence, Anal Sex, Rimming, Dubious Morality, Deception, Mental instability, Bottom Sam.
Summary: Castiel learned everything he knows about devotion from the Winchesters. In this peaceful future built on the back of Sam Winchester’s most recent sacrifice, Castiel discovers that death itself can be overcome. If he’s willing to pay the price.


Title: Walk
Author: safiyabat
Artist: chasingparallax
Characters & Pairing(s): Sam/Castiel; Sam, Castiel, Claire, Dean
Rating: M
Word Count: 32,417
Warnings: show-level violence, depression.
Summary: When Sam gets a call from Jody saying that Claire has taken off, all he wants to do is help keep Claire out of trouble. If she absolutely has to hunt, she should do so safely and with the right information, right? Castiel takes a dim view of proceedings, misunderstandings abound, and soon Sam finds himself hunting alone. Maybe all isn't lost, though. Maybe the presence of a bluntly spoken teenager is what Sam and Castiel need to break through the missteps and get to a point that's good for both of them.


Art by stefy_coool created for the fic There's Nothing in the Dream Dictionary About This

Title: There's Nothing in the Dream Dictionary About This
Author: nelliespector
Artist: stefy_coool
Characters & Pairing(s): Sam/Castiel; Sam, Castiel, Dean
Rating: M
Word Count: 3628
Warnings: alcohol use, mentions of past demon blood addiction, nightmares, smut, mentions of psychological trauma
Summary: Dean is concerned as Sam's nightmares have returned and seem to be an unsolvable issue. Castiel just wants to help, but Sam's been having intense dreams about his best friend that have him questioning his sexuality.


Title: Mandrake and Moonstone
Author: Sammysmitten
Artist: M14mouse
Characters & Pairing(s): Sastiel; Sam Winchester, Dean Winchester, Castiel, Benny LaFitte, brief mention of Jessica Moore
Rating: T
Word Count: 19K
Warnings: PTSD, nonexplicit torture, panic attacks, suicide attempt
Summary: Four years (one month, and eight days) ago, Sam was one of the most impressive witches in the world, having worked his way into the prestigious international Order of witches, warlocks, and other magical folk with nothing but determination, talent, and his familiar by his side. In fact, Sam couldn't have been happier, because despite the taboos surrounding it, despite their fear, Sam and his familiar, Castiel, had fallen hard for each other. But four years (one month, and seven days) ago, a horrible fire brought everything tumbling down around Sam's ears: His books, supplies, mentor, and familiar all burnt to a crisp, and Sam was suspended from The Order pending investigation. Imagine his surprise when Castiel appears on his doorstep, very much alive and carrying the message that The Order wants him back.


Title: Winds of Fate
Author: Aria Lerendeair
Artist: Emmatheslayer
Characters & Pairing(s): Sastiel (Sam Winchester/Castiel Novak), Side Debriel (Dean Winchester/Gabriel Novak)
Rating: Explicit
Word Count: 77,404
Warnings: Explicit Sex Scene, Attempted Murder, Arson, Kidnapping, Angst
Summary: Sam didn’t mean to fall in love with the figure skater who came to his rink every afternoon for practice. It just kinda, happened. Unfortunately, Castiel’s hiding some stuff too and they need to figure it out, before Castiel’s past catches up with him.


Title: Revolt
Author: safiyabat
Artist: stormbrite
Characters & Pairing(s): Sam/Castiel, Cas/Meg
Rating: M
Word Count: 39,134
Warnings: Past non-con (not graphic), consent issues involving possession (past), suicidal behavior, polyamory.
Summary: Fantasy AU. When a demon and a half-demon are captured after a demonic attack on the human stronghold of Haven is repelled, Castiel is asked by his human friend Dean to be present at the interrogation. He soon finds himself a pawn of forces beyond his control, whether it be his superiors in Heaven (who order him to manipulate the Righteous Man and try to prevent him from reconciling with his brother) or his own attraction to both prisoners. Before long he knows that he must make a choice: between Heaven as he knows it and his Father's commandments, and between his orders and his heart.


Title: The End to Empty Dreaming
Author: leah_elisabeth
Artist: nightsrk (korviday on tumblr)
Characters & Pairing(s): Sam/Castiel
Rating: NC-17
Word Count: 7908
Warnings: Masturbation, Anal Sex, Attempted Scalping, Some Non-Con
Summary: Ever since his soul was shoved back in his body, Sam has felt like it doesn't quite fit anymore. The trials made it worse and, although Gadreel made him feel almost whole again, he was left even more torn and broken after his departure. Cas also struggles with a grace that does not belong to him. He and Sam go on a hunt together but never expected that what they would find instead would be a cure for their brokenness.


Title: Face Paint
Author: Glitter_Lisp
Artist: sammycolt24
Characters & Pairing(s): Sastiel
Rating: E
Word Count: 6780
Warnings: None
Summary: Cas is the definition of an eccentric artist, Anna is his longsuffering agent, and Sam somehow just became his nanny. Facepaints, laundry, and other suitably artsy shenanigans ensue.

2016

Title: Old Wounds
Author: hit_the_books
Artist:
Characters & Pairing(s): Sastiel, Sam Winchester, Castiel, Dean Winchester, Original Characters
Rating: Explicit
Word Count: 31,675
Warnings: Mildly Dubious Consent
Summary: Castiel suspects that Sam might have feelings for him, what with the movie and TV show binging they keep doing together. A stay in Atlantic City confirms this, but as Team Free Will moves on to tackle a case in Wells, Maine, Sam's sudden "Ariel phase" could be about to break Team Free Will, and Sam and Cas, apart. It's Splash, but not as we know it.


Title: ab luce, ad ignis
Author: cruxis
Artist: stanfordbaby
Characters & Pairing(s): Castiel & Sam Winchester
Rating: T
Word Count: 18790
Warnings: n/a
Summary: Because that’s how Castiel is looking at him right now, like he’s something worth admiring, and Sam doesn’t know what to do or how to handle it. How Dean could handle it, he’ll never know. A story in five parts. Season 9 AU.


Title: Sweet Treat Kisses
Author:backrose_17 (LJ) | blackrose_17(AO3) | sweet-sammy-kisses (tumblr)
Artist: stargazingchola (LJ) | winchesterchola (tumblr)
Characters & Pairings: Castiel/Sam, Dean/Benny, John/Mary, Gabriel/Hannah, Meg/Elieen, Clarie, Amelia, past Castiel/Amelia, past Brady/Sam, mentioned Anna/Ruby
Rating: PG-13
Word Count: 25,433
Warnings: Past Cheating
Summary: When Castiel went on a hunt for the perfect birthday cake for his daughter, he never expected that it would lead him to Sam. Or over protective big brother, matchmaking family and friends but Castiel knows that Sam is worth it.


Title: Carterhaugh
Author: story_monger
Artist: quickreaver
Characters & Pairing(s): Sam/Castiel, Crowley, Bobby, Dean
Rating: Gen
Word Count: 30,692
Warnings: Offscreen body horror
Summary: When Sam leaves his dad and brother, he expects to spend a few weeks working his way across the country to California and the full ride to Stanford that waits for him. He's not expecting to stumble into a strange place called Carterhaugh County, and he's not expecting to accidentally trap himself there with a man named Castiel, who as it turns out, isn't a human at all. Sastiel retelling of Tam Lin.


Title: Whole
Author: samanddeaninpanties
Artist: casquecest
Characters & Pairings: Sastiel, Wincest, Wincestiel, John Winchester, Amara
Rating: Explicit
Word Count: 8,574
Tags: AU, fluff, angst with a happy ending, depression, nightmares (mentioned), jealousy, voyeurism, older!Sam, younger!cas, younger!Dean, top!Cas, dom!Cas, bottom!Sam, implied switch!Sam, implied bottom!Dean.
Summary: When Cas is placed into twelve-year-old Sam's arms for the first time he forms an instant attachment with the toddler. Over the years Sam, Dean and Cas become inseparable - until Sam goes off to college, that is. After Cas turns eighteen and Sam moves back home Dean's distant and Sam misses how it used to be. One thing that remains the same? The bond Sam shares with Cas.


Title: It's Worth It, It's Devine
Author: maaahksheppard (tumblr), SLunne (AO3)
Characters & Pairing(s): Castiel/Sam Winchester
Rating: M
Word Count: 3258
Warnings: First time, top!Sam, bottom!Cas, switching implied
Summary: After Kevin's death, Sam finds comfort in an unexpected place. And once Sam had a taste of Castiel, he realizes that he may have found something he never realized he'd been searching for.


Title: it's like catching lightning the chances of finding someone like you
Author: casandsip
Artist: emmatheslayer
Characters & Pairing(s): Sam/Castiel, Claire/Alex, Gabriel
Rating: T
Word Count: 8K
Warnings: none
Summary: College professor Sam Winchester has a reputation for always finding the perfect dates for his students - but he's never been able to find a date for himself. That is, until one particular student of his starts meddling with his personal life.


Title: A Hazy Shade of Winter
Author: amypond45
Artist: satanic-prom-dress
Characters & Pairing(s): Sam, Cas, Gabriel, Jody, Claire, Alex, Dean
Rating: R
Word Count: 28K
Warnings: Warnings: Spoilers for 11.23: Alpha and Omega, past wincest.
Summary: Alternate ending for 11.23. Dean carries out the plan to suicide-bomb Amara, saving the world in the process. Just before he does, he makes Cas promise to stay with Sam, to "look after him and make sure he doesn't do anything stupid." After Dean's sacrifice, Sam is consumed with grief, going mad with desperation to get Dean back or die trying. In a last ditch effort to save Sam and make good on his promise to Dean, Castiel wipes Sam's memories of his brother, leaving Sam a broken shell of a man who can barely remember what he had for breakfast. This story assumes the London Men of Letters storyline doesn't happen, God has died or disappeared, and there is no Mary Winchester returned from the dead.


Title: Like A Rusted Engine
Author: Aria Lerendeair
Artist: archofimagine
Characters & Pairing(s): Mishalecki - Jared Padalecki/Misha Collins
Rating: Explicit
Word Count: 7,600
Warnings: Pining, Getting Together, Horrible Flirting
Summary: When Misha first meets Jared Padalecki, he knows he’s in trouble. One motorcycle, some really, really bad flirting and a misunderstanding later, well. He’s still in trouble, but at least he likes this kind of trouble.


Title: Heart's desire
Author: Zetal (Rodinia) | rodiniaorzetalthepenquin
Artist: kandai_suika
Characters & Pairing(s): Sam Winchester/Castiel, Dean Winchester/Donna Hanscum, Mary Winchester
Rating: Teen and Up
Word Count: 10,950
Warnings: AU from the end of S11 (no Toni/BMoL), No spoilers for season 12, Aftermath of possession.
Summary: Lucifer’s dead and the world has been saved. Dean’s gone. Cas is dealing with the aftermath of his possession by Lucifer. Sam wants to help, but right now, there’s not just a whole lot he can do. Then Dean returns, and he’s brought their mother with him. Dean’s got Mom, so Sam can focus on helping Cas. Additional note: Additional thanks were added by Zeta in her story's introduction.


Title: Monsieur Chevrolet
Author: jj1564
Artist: kuwlshadow
Characters & Pairing(s): Sam Winchester/Castiel Novak
Rating: Mature
Word Count: 12215
Warnings: M/M, First time, blow jobs, bottom!Cas, top!Sam,
Summary: Sam tries on an old coat from a trunk in one of the Bunker’s mysterious rooms and is transported to nineteenth century Paris, during the Student’s Revolt. He needs to save a brother and get back to his own – with Castiel’s help. Author's Note: Set just after 11.04 'Baby'. Thank you to septembers_coda for your beta work, help and support - you made my first Sassy an enjoyable experience! Thanks to my wonderful artist, it was fun working with you.


Title: In the Darkness, Bind Them
Author: leah_elisabeth
Artist: loracine
Characters & Pairing(s): Sam/Castiel
Rating: M
Word Count: 5289
Warnings: Violence, very brief mention of non-con.
Summary: Sam feels guilty for so much, Lucifer is free, Amara is terrorizing the earth, Castiel is locked away as the vessel for the angel who destroyed Sam's life, and it is time to do something about it, even if that means using a weapon that will change everything for him, forever.


Manip by nonexistenz, created for the fic Even If the Skies Get Rough

Title: Even If the Skies Get Rough
Author: elenajames
Artist: nonexistenz
Characters & Pairing(s): SamCas, DeanBenny, Past Wincest
Rating: Teen
Word Count: 7831
Warnings: Depression, PTSD, Minor Character Death, Angst with a Happy Ending (Full Tags on Ao3)
Summary:There's a lot left broken in the wake of the Trials and the Fall. Some of it can be fixed, some of it can't, but the boys try to come together to make sure no one has to heal alone.


Title: Guardian Angel
Author: bestiesandagents
Artist: stormbrite
Characters & Pairing(s): Sastiel; Sam Winchester, Castiel, Michael, Dean Winchester
Rating: Teen
Word Count: 13,948
Warnings: None
Summary: Castiel wasn’t overly excited when he was assigned to watch over Sam Winchester, his mind immediately reeling with all the potential problems he could face with this dangerous boy. Nevertheless, he dons the disguise of a college boy, Cameron, and ends up facing the one problem that never even occurred to him - falling in love with his charge. Now it seems that, no matter what the circumstances, he cannot have a relationship with Sam that isn’t based on lies. But what other choice does he have, when telling the truth could mean losing him forever?


Title: Happily Ever After
Author: Aria Lerendeair
Artist: maaahksheppard
Characters & Pairing(s): Sastiel - Sam Winchester/Castiel Novak
Rating: Teen
Word Count: 20,000
Warnings: Falling in love, Get Together, Happy Ending, Mutual Pining, Secret Pining
Summary: The first time Sam Winchester meets crown prince Castiel Novak, they end up in trouble together, and somehow become friends, then best friends. As Sam grows up, he absolutely does not have a crush on his best friend, or fall in love with him, no matter what Dean says. When push comes to shove and Castiel must marry, well, there’s only one thing Sam can do, isn’t there?


2018

Title: Cat’s Cradle
Author: jamesnovakwinchester/rosemoonweaver (same person)
Artist: trisscar368
Rating: Explicit
Chapters: 10 (24,000 words)
Summary: Sam Winchester isn’t your typical witch. Practicing a taboo form of magic is bad enough, but it’s another thing entirely to have his brother for a familiar. He’s always been aware that there are those who would like to ruin both him and his brother by separating the two, either because they feel it’s unnatural for witches and their familiars to be related or because they want to steal Dean’s magic for their own. So when Castiel Novak shows up claiming Dean’s his familiar… well Sam’s not willing to go down without a fight. Castiel Novak is a loner. It’s mostly by choice, but really, what choice do you have when you can see the threads that orchestrate relationships? He knows he can’t get too close to people, because in his experience they always leave when the people they’re destined to love show up. So imagine his luck when he finds both his familiar and the man he’s destined to have a relationship within the same week! It’s really just too bad he and Sam can’t seem to get along for five minutes. The threads have never been wrong before but damn would it make it easier if they could just hate each other instead.


Title: Alone With You
Author: samanddeaninpanties
Artist: oddsocksandstuff
Rating: Explicit
Chapters: 6
Summary: Cas has been a single parent since Jack was a baby. He can’t remember the last time he was touched by someone outside of family or work. Frankly, a part of him doesn’t want to be touched. It means developing a connection and it’s not something Cas thinks he can risk, not with a human. Not until he meets an escort named Sam. Will Cas and Sam have a chance to connect beyond a professional relationship? Or will it all crash and burn from past trauma and Dean’s determination to protect Sam at all costs?


Title: Oops! I Married an Angel
Author: LegendsofSnark
Artist: awaart
Rating: T
Summary: After a spell goes wrong, Sam and Cas find themselves experiencing symptoms that they never had before, feelings that were long since hidden are now exposed and out there for them to explore. If anything. They’re kind of Angel Married


Title: All This Time
Author posingasme
Artist dmsilvisart
Rating Gen
Chapters: 8 Total
Summary: Over the past few years, Castiel has made a name for himself as a brilliant, confident engineer. But on the inside, he still thinks of himself as the shy, chubby nerd who never fit in. Sam has left his fast-paced corporate law job for something less glamorous and more fulfilling. But he can’t help drifting back to memories of his best friend in college, the only person he ever felt like himself with. After all this time, there’s still something there between them…unless their big brothers get in the way.


Title: Under the Willow
Author: jhoomwrites
Artist: Blu
Rating: M
Chapters: 1
Summary: From the moment he met Castiel Novak, the other boy had been such an enormous part of Sam’s life. He couldn’t imagine a world where his heart didn’t belong, at least in part, to Cas, a sentiment that was put to the test by the circumstances of their lives: years apart, a marriage to a noble lady, and the ever present reality that they were both men.

2019

Title: The Moments In Between
Fic by FormidablePassion
Art by sealionsam
Pairings: Sastiel
Rating: Mature
Warnings: No Archive Warnings Apply
Summary: When Sam discovers that people are disappearing from a private couples resort, Team Free Will go undercover to investigate. Dean’s skills are needed elsewhere to give them access, so it’s up to Sam and Cas to pretend to be a happy couple both at the resort and on the 3-day cruise. On the ship, without a way to communicate with Dean, they have to figure out what is abducting people before another passenger goes missing. Dealing with limited resources and time constraints, Sam is determined to save the next victim – he just hopes that he isn’t too distracted by his “fake” relationship to do the job.


Title: Change in the Cushions
Fic by Threshie
Art by Kaianieves
Pairings: Sastiel
Rating: Teen
Warnings: No Archive Warnings Apply
Summary: Sam and Cas think back on all the memories attached to the beaten up couch in their old shared apartment. The couch they’re leaving behind. It’s been with them the entire time they dated, and now everything is about to change.


Title: Wrecked land, and hope
Fic by svstiels/saint survivor.
Art by oddsocksandstuff/AnOddSock
Pairing: Sastiel
Rating: Teen and Up
Warnings: Creator Chose not to use Archive Warnings
Word Count: 2849
Summary: On his good days, Sam wears a necklace of grace around his throat.


Title: Change Into A Person I Don't Wanna Be
Fic by LadyShadowphyre
Art by Kandai
Pairing: Sastiel
Rating: M
Warnings: Godstiel, King of Hell Sam, Dean with the Mark of Cain, erratic behavior from Castiel due to Leviathans
Summary: Castiel swallowed the souls of Purgatory and killed Raphael before declaring himself God. When he went looking for Sam, whom he had promised to heal once he had defeated Raphael, he found him and Dean both missing and Bobby in a drunken stupor. And then one of Castiel’s lieutenants brought him the news: Sam Winchester had claimed the Throne of Hell.


Title: Wanna Play
Author: CBFirestarter
Artist: blubunnart
Pairings*: Castiel/Sam Winchester
Rating: Explicit
Warnings: None
Summary: Soon-to-be college sophomore Sam Winchester needs to find a new place to stay before the term begins. After following up on an ad requesting a roommate, he meets the reclusive gamer, Castiel, and finds that he is more than happy to take him in.


Title: What I See
Author: verucasalt123
Artist: love-nakamura
Pairing: Sam Winchester & Castiel
Rating: General Audiences
Warnings: None
Summary: It turns out that the holy fire glasses don’t only work for seeing hellhounds.


Title: The Angel With Nine Lives
Fic by klove051
Art by dmsilvisart​
Pairings: Sam/Castiel
Rating: G
Warnings: None
Tags: Cursed Object, Fluff, Sam Winchester Has Self-Esteem Issues, Animal Transformation, Case Fic, Light Angst, Misunderstandings, Season/Series 09, Pre-Slash
Summary: In the wake of Dean and Gadreel’s departures, Sam and Cas return to the bunker to search for a way to track Metatron. When Castiel vanishes and a cat invites itself into the bunker to stay, however, Sam must figure out what has happened to his angel.


Title: A Riddle
Fic by MasterpieceofTurkeyCleverness
Art by Marichromatic
Pairings*: Sastiel
Rating: M
Warnings: Nudity, AU-Fantasy/Fae
Summary: Prince Castiel accidentally wanders through a fairy ring…only to find out that the Fae are hunting humans for their blood.


Title: Everything Right
Fic by TheLittleRedWhoCouldWrite
Art by danielledastis
Pairings: Castiel/Sam Winchester
Rating: Explicit
Summary: Sam and Cas are on a hunt and oh, no - there's only one bed.