I decided to separate this from my wincest list because I’ve gotten into both ships a lot more as of late and now if you like one and not the other you don’t have both :) (First three go together)
Like A Slow Fire Burn NC-17 So maybe, when they’re both under the influence, the Winchesters like to mess around. It’s no big deal, except for the part where they’re afraid to mention it in the cold light of day. And then there’s weed, and Cas’s insane angel logic, and somehow Dean ends the night with all the shame plowed right out of him.
We Crash And We Roll NC-17 After Cas set them straight about heaven’s non-interest in the issue, Dean and Sam, with intermittent Cas, have fallen into something of a routine. Everything is awesome and becoming familiar, until the day Cas shows up and asks for something unexpected
Run Right Into You NC-17 What the three of them have is all sorts of complicated, but it works. It works really well, actually, and at the tail end of a very bad day, Castiel just wants to go somewhere that he knows he belongs. Sam and Dean can give him that.
Feel Your Way NC-17 (AU) Castiel is still a virgin, much to his brothers’ chagrin, so Balthazar and Gabriel take it upon themselves to fix the situation by hiring two prostitutes to show their brother the ropes.
Boys Next Door NC-17 (AU) Castiel Novak has got a crush on the boys next door.
Normalcy PG-13 (AU) It’s not a conventional relationship, to say the least.
Try This Trick And Spin It NC-17 Castiel Falls and thinks no one’s there to catch him. He’s wrong.
Calling Dibs NC-17 According to Castiel’s logic, they’re all brothers anyway.
Fulcrum NC-17 This is how Sam bonds with an angel.
Not So Normal (So What Else Is New?) NC-17 Castiel thinks this should be celebrated. Dean’s not there yet, but he’s working on it. Sam’s just happy to be included at all.
A Practical Approach NC-17 Sam provides instructions, Castiel is an apt student, Dean just hangs on for the ride.
Apples And Oranges NC-17 Paraphrased prompt: “Cas compares Sam and Dean while he has sex with them (separately).”
Collegeangels.com NC-17 (AU) Dean and Sam have always been a little too close, and Dean knows it’s wrong – so he heads to college, hoping that he’ll meet someone there who will keep his mind off his little brother. He meets Castiel, who has a business proposal for him — join Cas in bed, and online, for live webcam site CollegeAngels.com. Through Castiel, Dean learns about sex, kink, and freedom, and he finally feels pride instead of shame for who he is. But then Sam gets accepted to the same school, and he wants to live with Dean.
Our Bodies, Possessed By Light NC-17 Purged of all his souls, Castiel is a changed being, stronger than an angel and too powerful for Jimmy’s body to contain. Happily, there’s an archangel’s vessel on hand, and he could use fixing, too. Dean isn’t too happy about the idea of his brother acting as a vessel for Castiel, and Sam can guess why, but it isn’t until Castiel gets inside his head and they learn to share the vessel – and their thoughts – that Sam realises Cas is as in love with Dean as Dean is with him. It’s unfortunate that there’s nothing much to be done about it now, but Castiel will get another vessel soon. The Winchesters will make damn sure of that. In the meantime, it’s up to the three of them to establish their own strange accord, and Dean realises more fully than ever that it’s Castiel, and not his vessel, that he loves.
The Lion’s Den NC-17 (AU) There have always been these rumors too, but Castiel had assumed they were along the same lines as the taunts of ‘cocksucker’ and 'fag’, more the failing of creativity on the part of their harassers than a legitimate accusation. He never thought that they were actually involved, much less that he would ever be afforded the opportunity to see it for himself.
Apotheosis NC-17 Sam briefly wondered when the virgin angel of the lord had taken control of this whole encounter.
Leave Thy Gift Before The Altar NC-17 (Godstiel!Cas) Leave there thy gift before the altar, and go thy way; first be reconciled to thy brother, and then come and offer thy gift. (Matthew 5:24) Like every loving God, Castiel needs to be loved in return
Veterans Day NC-17 A day in a house by the sea, when all the wars are over
Flutter And Wow NC-17 It would be so easy to label it wrong. It would be so easy to think a lot of things. But everything Castiel can think, if he looks at them, is that it’s true that nothing is ever really as easy as it seems. Or, where Castiel is watching things he shouldn’t but neither Dean or Sam mind it. All the contrary.
Dirty Pretty Things NC-17 (AU) This is the best idea Castiel’s ever had. This is an AU of the Dean/Castiel AU called 300 Things. Read both.
Belong NC-17 Castiel sees Sam and Dean in a compromising position. His reaction is a complex one. He goes to return Dean’s pendant.
Save Me NC-17 (AU) Captured and sold into slavery, omega brothers Sam and Dean are the main attractions at Alastair’s. When they aren’t fighting in the pits or warming the beds upstairs, they find what comfort they can in each other’s arms. Castiel Novak, an alpha with a talent for killing and taking down the omega slavehouses targeted by his family, takes one look at Dean and knows he’ll do whatever it takes to make Dean his. But when Castiel learns just how close the two brothers are, and just how deep their wounds run, will he be able to love them as they are?
Drop Your Expectations (And Your Pants) NC-17 {Special Note: This is Destiel & Sastiel and this is the best place I could think to put it) ork on his plate with a clatter of metal on glass. He dabs the corner of his mouth with his napkin, and crosses his arms over his chest. He’s not looking at Dean, but not bothering to look at Sam either. “I’m done,” Castiel says firmly, moving away when Sam tries to shift closer and grab Castiel’s hand. “What do you mean? You only ate one bite,” Sam asks, brow furrowing. Dean smirks, crunching on fries and looking far too pleased. “Maybe he’s on a diet.”
Baby, Let Me Love You Down NC-17 Dean is not a passive lover by anyone’s standards.
And No More Shall We Part NC-17 Seeing them kissing like this is the most beautiful thing Dean has put his eyes on; it means that he has them both and he never has to make that choice he feared he’d have to do back before the Apocalypse even started.
Kick Off Your Shoes And Lay Down NC-17 The only people allowed to touch Sam after he gets his soul back are his brother and an angel, and when they are touching him is the only time that he really feels whole.
Triskelion NC-17 It takes patience for the two of them to fuck him at once, anchoring hands on each other’s asses as they grind and rock together into the tight clutch of Cas’s body, but that doesn’t mean it isn’t amazing.
First Thing In The Morning NC-17 Maybe, if he just gives Castiel what he wants, gives in just this once, they can all get past whatever the hell this is and forget it.
Into The Light Of The Dark Black Night NC-17 Across the space of a thousand lonely miles and approximately four and a half feet of boot-worn, hide-anything-colored carpet, Dean watches his brother twitch. Twitch. Twitch again. Then still, stop. Breathe. Twitch.
The Tree House Verse NC-17 (AU) Summers were spent in South Dakota with Uncle Bobby and down ‘round the bend and across the Dodger’s rickety fence lived Castiel’s family. It was always good, when they were together.
Copped and Bothered NC-17 (AU) Castiel is a beat cop who has fallen out of love with the job, Sam and Dean Winchester are a couple of cons turned informant. Between them both, Castiel is taken apart and for a moment and a space in time, not Castiel just Cas. D/s dynamics, bottom!Cas, powerbottom!Sam and top!dean.
Family Values NC-17 (AU) Dean and Sam have been traded around their whole lives, building what they could out of everything that was broken. When they are adopted by Castiel’s family, broken is just a thing they have in common.
The Painted Horse NC-17 (AU) {Light Masocism/Somewhat D/S relationships} Castiel sees the world in vibrant color, Sam is looking to belong and Dean is a born-ready cynic. Between them forms a cautious and unlikely family, complementary to the core. As Castiel carefully guides their shared but flawed relationship, he discovers the bonds that tie are more familial than they ever suspected. When everything comes crumbling down, Sam realizes the brother he’s tried his whole life to find and the one Dean tried to forget are one in the same.
Chicken Soup (And Other Home Remedies) NC-17 Castiel hated being sick. It was miserable, there were fluids and expectorants and all manner of unpleasant autoimmune responses that for all Sam’s well-meaning chicken soup, he couldn’t shake.
Tell Me About It NC-17 Dean’s got a foul mouth. Sam knows this. The whole fucking motel probably knows this. But Jesus, if Dean was bad before, that’s nothing compared to how filthy he’s gotten since they’ve started banging Cas.
Do Over NC-17 It all starts with a pot of coffee.
Shiny Beautiful Mechanical Wind NC-17 (AU) {Sci-fi, Adopted Family, Pseudo-Incest, no blood relations) Castiel’s job is to collect lost capsules and put the tracking number in the system so he can return them to their parents. He finds one without a tracking number, and decides to keep it. He finds another two years later, and does the same. Both of his adopted sons grow very fond of him.
There’s Not A Crowd NC-17 Sam loves both Dean and Castiel, but they love each other. Neither of them would ever want Sam, or at least that what he thinks. What happens when Sam runs away only to be captured by a demon?
Under Every Sky NC-17 Sam is used to a life of travel, Baby’s easy gait and the solid reality of Dean in the saddle in front of him. Then a star falls from the sky, a stranger with a story of another reality where all the nightmares still live. OR What happened when Metatron missed.
Project: Noah’s Ark NC-17 (AU) {Human/Animal Hybrids} Project: Noah’s Ark is a secret government program designed to mix humans with the genetic coding of animals, both furthering the war efforts and to give humanity a fighting chance against disease, famine, and anything else Mother Earth can throw at them. The Winchesters are missing, having fled the agency and killing anything that tries to bring them back: Castiel, the Shrike, is E.D.E.N.’s fifth attempt to subdue the runaways that threaten the entire operation, and he is determined to hunt them down. But there may be more to Sam and Dean’s story than what a manila folder will tell him, if only he would stop trying to kill them.
Method To This Madness NC-17 More threesome sex in an AU of an AU. Because there can never be enough.
Tilt Shift NC-17 Cas is learning to be human. Turns out being human comes with being an omega, and being an omega comes with going into heat. His first heat ever. He requests Sam and Dean’s assistance in relieving it. Very PWP.
The Three Body Problem Series G to NC-17 Cas asks the Winchesters on a date. Yes, both of them. (Right now, a big bang, a deleted scene, six alternate POV time stamps, and three voice recordings of me blathering on about the story and characterization and sex. There might be more to come, but I wouldn’t bet the farm on it. These things are unpredictable.)
Apologies and Other Disasters NC-17 Canon divergent AU from 9.03. After Sam kicks Ezekiel to the curb, the first thing they do is to go find Cas.
List is a work in progress, as usual