Hi! I was wondering if you knew any fanfics where Cas's grace reacts to his feelings for Dean? (Eg blowing lightbulbs when they kiss etc) Thank you so much! 😊💫
Hello! Here are a few we could think of:
Angel's Wild by riseofthefallenone (Explicit, 389k words)
But that’s the whole reason he’s here, isn’t it? He’s not out here hunting Humans. He’s not even hunting deer, or bears, or anything else that featured in Bambi. He’s out here, freezing his nuts off every night, because he’s hunting Angels. Sometimes Dean wishes that Angels were like how they’re described in the Bible. How people from time too old for him to care much about thought Angels were messengers and warriors of God, protectors of Humans. He knows that how they’re really described in the Bible is actually pretty terrifying, but at least they were told by God that they’re supposed to love Humans, right? That’s a thousand times better than what Angels really turned out to be.
Come Fly With Me by EllenOfOz, followyourenergy (Explicit, 37k words)
Castiel is back from the Empty, and Dean wastes no time in diving in and planting his lips…well, all over the angel. Cas responds enthusiastically and all is well (or as well as Dean ever gets to have)…until sex with Cas turns out to have a surprising finish. Weird side effects or not, Dean will take Cas any way he can get him, and he makes the best out of every time. With each time, though, the repercussions of those side effects on Cas are more and more serious. Is Dean destined to lose Cas, one way or another? Or can he change the course of the future by confronting their past?
Don't by tricia_16 (Explicit, 97k words)
After nine days of radio silence from both Jack and Cas, Cas returns to the bunker without Jack but with black fur, four paws, a tail, and an obvious preference for Dean's company. With no idea how to turn Cas back or how he got turned into a cat in the first place, Dean has to learn to live with Cas quite literally underfoot all the damn time. Nobody could have guessed that having his best friend in cat form would end up being the catalyst for a huge shift in their relationship, but looking back, he's pretty sure it all started with an annoyingly stubborn ball of fur...
My Soul Whispers Your Name by casblackfeathers (Explicit, 15k words)
When Amara tells Dean that she will give him what he needs most, the last thing he's expecting is to sprout fucking wings and to be able to sense what his own soul — and heart — really want, making it impossible for him to ignore all the feelings he's been harboring for Cas over the years. It’s no shock that Dean’s soul is drawn to Cas like gravity and now that Dean can perceive Cas’ grace all the time, he’s constantly reminded how stupidly breathtaking it is. He had been a goner since the second he laid eyes on Cas, and this just seals the deal. Now that he’s stuck like this, he might as well pull his head out of his ass, give it a shot, and finally get what he always wanted.
Occursus by PallasPerilous (Teen and up, 4k words)
“The natural environment of the human soul is a human body,” Cas says. “Humans have yet to meet a foreign substrate that they don’t immediately attempt to colonize. My form in Hell was not an exception.” Then he shuts his mouth very deliberately and gestures back to Dean like his mic is going live in three, two. “Or the bit where my soul gave you some kind of STD?” Dean finishes. “It was a poor analogy. I apologize.” “So what’s a better one?” Castiel drums his fingers for a second. “It’s more like…the way a parasitic jewel wasp injects a cockroach with venom, and transforms it into a willing host for wasp larvae.” “Holy shit are you ever bad at this,” Dean says, with that signature brand of fond horror he special-orders just for Castiel, Angel of the Gourd.
Strawberry Moon by casblackfeathers (Explicit, 115k words) -- not exactly Cas' grace but his aura.
As a child, Castiel used to fall asleep with his mother telling him bedtime stories of the prophecy she had foreseen for him — how the Strawberry Moon would one day reveal the familiar he was destined to be with. However, it’s been twelve years since the heart-wrenching day Castiel last saw the one he hoped was meant for him, and at twenty-eight, with his magic quickly dwindling, he knows better than to keep believing in such foolish dreams. Castiel's resolve falters with the return of his long-ago teenage crush, Dean. The familiar’s evergreen eyes and rainbow aura are still as captivating, but his past is shrouded in mystery, one that could hold the answer to what drove them apart all those years ago. Maybe the peculiar tabby cat who seems to have taken a liking to Castiel is what it takes to make Castiel believe in the moon with shades of pink again.
The Greatest of These by DoctorProfessorSong (Teen and up, 9k words)
When Jack pulls Cas from the Empty, his vessel is damaged. Jack is working on it. In the meantime, Cas is stuck hanging around the bunker in his Trueform. In other words, the fic where Dean takes Trueform!Cas on little dates and the author has way too much fun with angel lore
you're holy to me by serenityfails (Explicit, 5k words)
"My wings inspired you," Cas says, smug at the thought. "Yeah, I'm feelin' pretty fuckin' inspired right now, man."
There's also this collection on ao3 cas vs lightbulbs that might interest you.
You might also want to check our grace fic tag.












