˖ .𐙚 Intertwined, Interlinked . ˖
Pairing: castiel x afab!fem!reader
Summary: A reckless solo hunt leaves you dying in the woods until Castiel answers your desperate prayer, saves you with a dangerous soul-bonding use of his grace, and turns you into his unwilling-but-undeniably-in-love celestial soulmate under your brothers’ watchful eyes.
CW: Smut, 18+ content, angst—but i kiss it better, minors dni, piv, female anatomy, male anatomy, grace play?, wing play, use of pet names (i.e., birdie, sweetheart).
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God, how did you end up here? This was supposed to be an easy solo mission without your annoying brothers micro-managing everything you did. How did it end so poorly?
Right now, you’re bleeding out about half a mile from the barn where you killed five vamps—though it was supposed to be just two. You took down four before the last one stabbed you through the abdomen and fled. You barely made it to the forest; you'd be damned if you died in that run-down shed surrounded by vampire corpses.
You slid down a tree, lying on the cold, hard ground, leaves all around you, the wind colder than usual for this time of year, and there was blood all over your body, slowly but surely leaking out of your abdomen. The roots of the tree are sticking out of the dirt, pressing under you, causing sharp pains to be sent throughout your whole body. This was it. This was the day you die.
A tear falls down your cheek, taking a bit of dried vamp blood with it. This isn't how you wanted to go. Sure, you wanted to go out with a bang like your brothers. But secretly? You hoped to grow old and die, not even having the cognitive ability to know you were dying. But here you are, coughing up blood, bleeding out on the cold, hard, root-filled ground, under a tree that had seen better days. At least the sky is clear; you get to see the stars one last time. You wished your brothers well, silently, and said your final goodbyes.
You shut your eyes, embracing the cold fate ahead of you. But of course it’s not that easy. The sound of wings fluttering around you causes you to open your eyes, and as you look up you see a figure looking down at you. It is in fact a worried, frantic Castiel. Shit, you must have prayed by accident. “You're hurt.” Castiel frowns; it's laced with deep concern as he kneels down to you, using his grace to heal you. You groan, feeling the warmth of his power touching your fatal wound. “This isn’t working.” Castiel's eyes never leave you; he's trying so hard to heal you. “Your brothers told you not to go out alone—I told you not to go out alone.” He looks disappointed, frustrated, his brows furrow, causing the little wrinkle on his forehead to become prominent…one of your favorite sights.
“It's… my time, Cas,” you mutter out, struggling to look at him without your vision going double. “No, I won't—I can't let you go.” Castiel continues to try to help you, but no progress is being made. “Cas… tell my brothers… I'm sorry.” You weakly reach up to touch the sleeve of his signature beige trench coat, the one that he always wore. He shakes his head at you and continues to try to heal you. “No, you can say it to them yourself once I heal you.” His hands strain as his grace isn't able to heal you fast enough, the wound unable to close, it’s too deep—blood keeps gushing out. “Cas… it's ok… I… I love you.” Your grip on his sleeve loosens and your arm falls to the ground, your eyes fluttering shut. “Birdie… no—no, no.” Castiel starts to panic, seeing the light from your eyes fade away.
In a frantic hurry, an idea arises. He takes your pocket knife and cuts his throat, grace seeping out. He leans down to you, forcing the grace into your mouth. It disappears, going straight into your body. After he thinks it's enough, he heals his own wound, ripping off your shirt to see if it worked. Slowly, a blue glow emits from your wound, flowing from your body. Your breath steadies, relief washes over Castiel's face. He saved you. The blood has stopped; you look… peaceful. He lifts you up in his arms, cradling you like something sacred. With a flap of his wings, you two are back at the bunker, where Sam and Dean see Castiel holding an unconscious you, covered with more blood than you should be.
Sam rushes over to Castiel. “Cas… is she ok?!” He notices the blue glow coming from your deep wound. Dean skeptically looks at his sister, as if he almost knows it's not fully you. “She's fine. I saved her.” Castiel smiles lightly, looking down at you. “Saved her how?” Dean walks over to Sam, looking at their sister's limp body, softly breathing. “That wound… it's deep… and why the fuck is it glowing?” Sam nods, looking at Castiel for answers. “She would not heal. I gave her some of my grace, and her body accepted it.” Dean's eyes widen. He looks mad, concerned, and also relieved. Sam runs to get medical supplies to help quicken the healing process, and Dean runs a hand through your hair. “So you made her a monster?” Castiel sets Eva down on the couch, gently releasing her from his grasp. “I didn't have a choice, Dean—I couldn't let her die. Not after… not after what she said to me.” Castiel looks into Dean's eyes. “I did what I had to.” Sam comes back running with a med kit, grabbing a few big bandages, some wrap, a needle with thread, and other things to suture the wound. Dean huffs, pissed at Castiel, but also glad his little sister is safe and sound… but is it even her anymore? “Sammy, Castiel turned our sister into some sort of angel-grace human monster.” Sam looks up at Dean and Castiel, immediately looking back at you, tending to your wounds as the blue light still glows from inside you. “Dean, we'll figure it out… all that matters is that she's alive.” Dean scoffs and looks at Castiel.
“If it makes you feel better, it's probably more of a soul bond.” Castiel's voice cuts through the tension in the room. “The fuck does that mean, Cas?” Dean crosses his arms, looking down, making sure you are still breathing. “We… are connected.” He smiles lightly, looking down at you, his hand moving a piece of your messy hair out of your face. “So you are 'soulmates'?” Dean chuckles at his comment. Castiel opens his mouth to interject, but Dean cuts him off. “Thank you, Cas… thank you for saving my little sister….” Dean kneels down and starts helping Sam patch you up.
Hours go by, you are soundly sleeping, all bandaged up, with a light blue glow still shining through the bandages and wraps around your abdomen. Your brothers are sitting at the war table, drinking a few beers, an looking into what Castiel really did to you, seeing if there is any lore. Cas is sitting on a chair by the couch you lie on, caressing your cheek and running his hand through your hair. Now when he touches you, it's almost like he can feel your feelings… a bit of pain is radiating on him, the same side you were wounded. Cas assumes this is part of whatever he did to you.
“So, get this,” Sam's voice breaks through the silence in the bunker. “It seems like you two are spiritually connected now, and it's called ‘Soul Sharing.’” Dean perks up from where he was, totally not looking at ‘Busty Asian Beauties’ instead of researching. “Are there any negative side effects? Is it curable?” Dean takes a swig of his beer and waits for Sam's response. “It's not 'curable' so to say… it's permanent—but it's not a bad thing,” Sam continues. “You guys can feel each other's pains, emotions, and can understand each other on a deeper level now.” Dean rolls his eyes. “Oh, great, my little sister and Cas can feel the same things now. That's not weird.” Sam shakes his head and continues reading off the lore he found. “This ritual can only take place if both parties have a deep love for each other.” Dean slams his bottle down and looks at Castiel with a killer glare. “Oh great, my best friend wants to bang my sister.” Cas turns to face Dean, not moving his hand from your head. “Bang your sister?” His head tilts, clearly not understanding the slang. “Bang means fuck—” Dean is about to finish when he notices your eyes fluttering open.
Castiel immediately feels you waking up, like he's waking up too. Sam and Dean get up and run towards the couch, looking down at you as you groan, sitting up, looking at Castiel in confusion. “Where am I? Is this heaven? No, probably hell, since I'm still stuck with you two helicopter parents.” “Hey!” Dean chuckles at you, just glad you’re awake. Castiel helps you sit up, and you feel the pain at your side. You lift up your shirt and notice a blue glow coming from the bandages that are on you.
Everything starts to flood back… you were supposed to die. “I… I was dying… what happened?” Sam kneels down to your level. “Castiel saved you—he bonded your souls.” You give Castiel a look of confusion. “You what?” Castiel's hands shoot up to your face, caressing your cheeks. “I saved you… I couldn't let you go—not after you said those words to me.” You look at Sam and Dean, confused, but then it hits you, and your face turns as red as the blood that was on it just a few hours ago. The feeling you are feeling right now, as his skin touches yours, it's like electricity flying through his fingers to your face. “I don't even want to know… Sam, let's go for a drive… leave these two soul-connected weirdos alone.” Sam nods, smiling at you, and before leaving, they both pat your shoulder.
As the door shuts behind them, Castiel takes this as the opportunity to explain everything they know about the soul bond.
“Is that why I feel your touch inside of me?” Castiel smiles so sweetly at you, still caressing your cheek with one of his hands. He nods. “And this can only happen when… when both parties love each other?” Castiel sheepishly nods again, seeing the blush migrate from your cheeks to your ears and neck. You cup his face with your hands and bring him into a soft, loving kiss. Castiel kisses you back, much hungrier than you started. His tongue asks for passage; you open your mouth, allowing him to fill you. His hand shoots down to your hip, and one tangles in your hair. Your hands slide down from his face to his shoulders, holding onto the collar of his trench coat.
You both break away from the kiss at the same time, like you knew the other needed a breath. “Darling… that…” You cut him off. “I could feel you wanted it—wanted to kiss me.” His gaze is locked onto your lips. “I feel… you want me too.” Both of you smash back into each other; this time, the kiss is lustful, sloppy, trying to get every inch of your mouth claimed by him. You feel a spark in your chest, a warm feeling filling your whole body. This must be because of your bond. Castiel grabs you in his arms and, without stopping the kiss, brings you to your room, shutting and locking the door behind him.
You break the kiss. “Cas… I—” “I know. I know you need me. I need you too.” Castiel's lips find yours again; this time they slowly trail down your neck, finding a sensitive spot on your collarbone that only you know about. “Cas—how did—” You can barely get out any words between the whimpers and sounds of pleasure escaping your lips. “I just do… I can feel it.” Cas mutters against your skin, the vibrations sending pleasure up your spine. You can feel his clothes bulge against your torn jeans, the friction like heaven itself. “Cas—” “I know, I know, I'll take care of you, baby.”
This is like no other feeling you've ever felt. It's like lust on steroids. You can feel his lust inside of you, his love radiating off of his skin onto yours as he places kisses all down your chest whilst he unbuttons your shirt, revealing your lace bra. He stops for just a moment, reveling in the sight in front of him. His eyes darken, blown out, and he goes straight back to placing hot kisses along your chest, now on your cleavage, biting the lace as he goes. Your legs are wrapped around his waist, grinding slowly into him, unable to feel the wound you just had a few hours ago.
Soft moans and pleas escape your lips. Castiel groans and moans against your skin. He sets you down on the bed as you take off his trench coat and unbutton his shirt, as he continues to place love bites and marks along your chest, nibbling along the way. He easily unclasps your bra, and it falls onto your lap. He moves down to your hardened breasts and starts sucking on your right nipple while he caresses the left with his calloused thumb. All of this stimulation, paired with the extra feelings heightened by the grace link you have, makes you cum in your pants, right there and then.
Castiel looks down at you, pleased with himself, and he takes off your jeans and looks at the mess you made, slick seeping through your lace panties. “Castiel—oh f-fuck.” You scream out as his mouth finds your inner thigh, placing hot kisses and nibbles up each side until he gets to your underwear, pulling it down with his teeth. You grip onto your bedsheets, moaning louder now as he finds your clit, lapping stripes up your wet pussy, devouring it like it's his last meal. “Cas—mhmm~ r-right there!” He continues to make out with your clit, inserting a finger into you, causing your hips to jerk into his face. He makes a soft moaning sound, and sticks another finger in, still eating you out like you are the best fucking thing he's ever tasted. Your hands find his hair, not to guide him, but as something to ground yourself. He continues to finger you, finding your good spot immediately, causing you to grind into his face, but he's not complaining.
You look down at him, covered in your slick, enjoying every single minute of this. Finally, you release right into his face, and he helps you through it, moans filling the room. He licks you clean, pulling his fingers out and licking those next, trailing kisses up your body, up to your lips where you taste yourself on him. He pulls away, looking down at you. “You taste so good,” he chuckles. That's it, it's his turn. You wrap your legs around his waist and flip him over, causing him to groan. You straddle his legs and unbuckle his pants, precum leaking through already. You move down the bed, kissing his bulge through his boxers. He whines, taking off his boxers, and his cock springs out, hard and glistening with cum. “Already came?” You smile, slowly stroking him in your hand, looking him in the eyes. He nods, noises slipping out of his throat as he covers his mouth. You take him in, tongue curling around the tip, before going down as far as you can, and what you can't take in your mouth, you stroke with your hands.
“R-right there, Birdie.” His head falls back, and his wings, which he always hides away and which are always invisible to you, flare out, knocking over a book on your nightstand. You don't stop, continuing to suck him until he releases into your mouth. You clean him off with your tongue and make your way back up to his lips, kissing him with his cum still on your tongue. He groans into you, wings wrapping around your body, touching your back, fluttering so sensually. You release the kiss and look at him, lying beneath you, drool connecting you two from your kiss. “Can… can I touch 'em?” you whisper into his ear as you nibble him. “P-please.” You continue to nibble on him as your hands lightly caress his wings. He arches into the air, shivering at your touch. He flips you both over in one swift moment, pinning you under him as his wings sprawl out in the air all around you. They are beautiful, brown and black… gorgeous. “Condoms… where do you keep condoms…” He licks his lips, causing heat to pool up in your lower belly. “Top dresser—” you barely get out before you hear his wings swoosh; he moves so fast you couldn't even tell. He rips open the condom and places it on his throbbing manhood, wasting no time inserting himself into you. You arch into him, nails digging into his back. His wings flare in the air as he continues to thrust into you. Both of you are so overstimulated by this point, both so close. You grab onto one of his wings, touching it so softly as he continues to thrust into you. He groans into your mouth as you touch his wing, causing him to thrust harder. His hand finds your clit, caressing it as he smashes into you.
Finally, you both hit climax, his hips shuddering into you as he rides out the last high. Castiel flops on top of you, both of you out of breath. His wings sprawl out like a blanket over the two of you. He places soft kisses on your shoulders and slowly exits your body. You shiver at the loss of him, but he lies next to you, embracing you and placing kisses along your back.
“That was… amazing,” he whispers into your ear, placing kisses on the lobe. “It was.” You chuckle. Castiel snaps his fingers, cleaning both of you up, changing the sheets, and clothing you both in comfortable clothes. You both lie there, embracing each other, and nothing else matters but that you two are together. “I love you.” He mutters against your neck. “Love you too.” You close your eyes, falling fast asleep.
