For Safe Passage by thewinchesterlifestyle (PDF) ~ “We offer this virgin in return for safe passage.” The reason for the sacrifice wasn’t a surprise. He had known when they had called for him that it was in the hopes their ship would not be destroyed and their lives forfeit.
Deep Darks and Bright Lights by rachelladeville (PDF) ~ Since he woke, Cas has been homeless and living on the streets with no memory of how he got here. His only clue so far, is a mysterious tattoo.
Addicted To You by Ltleflrt (PDF) ~ Warlock Dean summons an Incubus, whoops.
Monster Destiel AUs by Miss_Lv (All these and more PDFs) - Angelum Meum - Sweet Dreams - Splice - Enticement - Obsession - Purgatory - Pretty Boy - The Arrangement - Goodbyes - Secret Garden - Cat Scratch Fever - Parental - Put Your Light Out - PNG of list with details
Enticement by Miss_Lv (PDF) ~ this one deserves to be broken out on it's own. I should not love this as much as I do. There is something seriously wrong with me. Sixteen-year-old Dean has a monster under his bed. Just as he's slipping off to dreamland tentacles slither up all around him...
Carnival Oasis by violue ~ 7 parts Cas is a Sin Eater and a BAMF
Out of the Deep by riseofthefallenone (PDF) ~ Stay away from the light-beds. Stay in the deep. Castiel is a merman, Dean tries to help...
Expiration by destieltothegrave (PDF) ~ Born a Magi, a childhood accident gives Castiel abilities beyond what nature and sanity allow. Castiel is Gifted with the ability to see every human's death date, their ultimate expiration, just by a glance into their eyes. He's ruined countless lives escaping his own nightmarish reality, and some of the people he's wronged are after their pound of flesh. Living in solitude, working on his medical compositions, and atoning for his sins day-by-day is his life now, and one he's content with.
Undisclosed Pleasures series by vipjuly ~ this is ostensibly a WIP but it's done in stand alone sections so really it could be considered complete. At the time of this rec the reader is not really sure Cas is a 'creature' but it's a good bet that he is. "Tall dark and tattooed is not what Dean normally goes for in a one night stand. Some might call it a midlife crisis. Dean thinks it's a sexual awakening. They are... bound."
Grotesque PDF by lastknownwriter ~ not on A03 anymore - Deep in the heart of the bayou, a winged creature has paid a long and lonely penance for a tragedy history has forgotten. A fateful storm and a soldier pure of heart are about to change his world. A Dean/Castiel Beauty and the Beast AU.
Convenient Husbands by Annie D (scaramouche) (PDF) ~ “If you come in here, I will kill you,” Castiel says helpfully. The hunter raises his eyebrows and looks pointedly at the shackles around Castiel’s arms and legs. That’s just uncalled for, so Castiel dredges up some strength to force his defensive scales to glimmer a threat. “Just thought I’d warn you.” Dean marries Cas to form a healing bond, hijinks ensue. Minimal angst.
Dark Shadows - Metaphysical Gravity by zoemathemata (PDF) ~ Vampire Castiel Collins is awakened from his tomb by down-on-his-luck author Chuck Shurley. With Chuck’s help [and blood] Castiel sets out to make a life for himself in Collinsport, restoring his old home and hopefully being reunited with the reincarnation of his former lover, Dean Winchester.
Bed of Stone by bendingsignpost (PDF) ~ The Chamber of the Sleeping God is exactly what it says on the sign. At least, that’s what the priests claim. Inside, their god sleeps upon a bed of stone, his blessings slumbering until a woman pure of heart offers herself as his bride. Dean thinks it’s all bullshit.
Personal Space by MalMuses (PDF) (HTML) ~ Dean is an astronaut, and he definitely chose the career so that he could help move humanity forward, not just because he didn't want to sit in an office, thank-you-very-much. Becoming the first human to set foot on Mars was never part of his five-year plan, but he loved his job and couldn't say no when the opportunity arose. He had spent plenty of time thinking about what he was risking never seeing again if something went wrong; his brother, brother-in-law, and the adorable kid they were adopting, not to mention his friends, his car, and pie. What he hadn't considered was what, or who, he might find when he actually got there. - Part two Earthly Desires (PDF)
In the Deep Midwinter by narrativeimperative (PDF) ~ Cas is an angel but he's not Dean's angel. I found this fascinating. It's refreshing to read stories that were written early on and not polluted by the rehashed tropes and story lines that permeate the fandom fiction now. This is a good story and unique. Hunter AU. If there's one thing a good hunter knows, it's to stay away from angels.
A Beginner's Guide to Communing with the Dead by suspiciousflashlight (PDF) ~ This is barely an "M". In fact I think the only reason that there is smut at all is because the writer knew she'd get more readers if there was sex. This story does not need any sex to be good though. It's amazingly well written. In fact it should be serialized. My summary: Detective Dean needs to talk to the ghost who is haunting him and in order to solve Jo Harville's murder he summons a creature who can make that happen even though it's epically illegal to use necromancy magic. Oh and the Wall is collapsing which will lead to Armageddon.
Don't Walk On By by brimstonegold, virtualpersonal (PDF) Synopsis: Dean works several jobs in order to pay for medical care for Sam who has been severely injured. The day he meets Castiel, Dean's luck changes, though it is debatable whether it is for the better or for the worse. Castiel is an angel who has been cut-off from heaven to live with Man for a hundred years. Trying to right a wrong, he accidentally hires Dean as his rent-a-boy and learns a thing or two about being human. Prompt: Pretty Woman (the movie) My Comment: I'm surprised I never saw this story before now. Your writing is really good. I honestly really loved this and had no idea how you were going to wrap this up with one chapter left. It seemed a tiny bit rushed but I have very little room to talk as the one story I've written has a very rushed ending. Now I need to check out your other stories. I love running across good writing. 💞 (read 3/2020)