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sarahowritesostucky · 7 months ago

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📖"Hydra Sanatorium"

Rated: Explicit

Pairing: Bucky Barnes x Steve Rogers

Word count: 5112

Tags: a/b/o, medical institutionalization, cognitive disability, made up kinky medical things, diapers, catheters, enemas, non-con medical procedures, restraints, forced wetting, hurt/comfort, humiliation, kind!Careworker Steve, bratty!Patient Bucky, alpha Steve, omega bucky, dry humping, forced orgasm, masturbation, implied self harm, orgasm therapy, age difference (19/30s), omorashi

Series Masterlist if you've missed a chapter or need to re-read!

Summary: Bucky is a troubled teen coping with the traumatic transformation of late-onset omega puberty. Steve's the care worker who's been developing too much of an attachment.

Epilogue I.

Omegas don’t do well with change like this.

Moves tend to stress them out. To have all the things they cling to for safety and reassurance suddenly disappeared? replaced? Their den switched up, their nest taken away, nothing smelling or looking or feeling the same as what they’re used to? It’s distressing to them. It can throw them into bad moods at best, and mental health crises at worst. It isn’t logical and the poor things can’t control it, so their reactions can be confusing to people who aren’t familiar with omega behavioral patterns and physiology.

Luckily, Steve knows all about such things, so he isn’t too shocked when Bucky has trouble with his moods after moving into the apartment and begins—among other things—compulsively stress-masturbating with whatever he can get his hands on.

“Honey, wait. Wait, wait, wait.” Steve hurries to shut the door and set down his armload of shopping bags, going over to wrestle away whatever it is Bucky’s trying to stuff up his posterior. He almost laughs when he sees that it’s a hairbrush. (In the kid’s defense, it does have a vaguely cylindrical, rubberized handle.) “Bucky, give it to me,” he Voices, and takes it from the angrily whining omega. Yesterday, he’d had to break one of his mother’s cardinal rules and throw out food when he’d caught Bucky being violent with a vegetable.

“Nnn!”

Steve hushes him, pulling him into his arms and holding tightly. “Hey, stop. I’m here. I’m right here, ‘mega.”

Bucky stops fighting him and goes limp in his hold, changing from angry whines to a confused sob as he tucks his face into Steve’s neck and mouths over the skin. “Steve,” he moans, overwhelmed.

“Shhh. M’right here. You’re okay.”

Against his neck, Bucky sniffles, embarrassed. “I’m sorry. I tried, I tried to wait but I’m just so …” He makes a frustrated noise and grinds his face against Steve’s shoulder. “Mmrrr.”

Steve’s eyes track to the couch. There’s Bucky’s discarded sweatpants and his diaper. The nearest pillow, which Steve deduces he was recently humping, has a dark patch of slick on it. “Still feeling stressed?” he says, stroking Bucky’s back soothingly when the question elicits another whine. “Shhh. It’s okay. You’re allowed to touch yourself. But remember what we talked about? Safe ways?” He lets his hand trail down to Bucky’s butt, fingers delving gently between his cheeks to feel the slick there. “You need to be safe and not hurt yourself.”

Bucky nips him reactively. “I forgot,” he growls, then gasps in surprise when Steve pinches his asscheek. “Hey!”

“Don’t be mean. Your body’s just stressed. That’s why you’re feelin’ so emotional.”

He sniffles and hides against him. “But m’happy to be here.”

“I know you are, bub. Don’t worry. I know. And you know I’m so excited to have you here with me.” He kisses his hair. “We talked about this. Sometimes your body gets ahead of you. We’ve just gotta make you feel at home and real safe, then I promise you’ll feel better.”

That’s why he just popped out to the store to grab a few things. He’d left Bucky snacks and blankets to snuggle with on the couch, but clearly that wasn’t what he felt like doing.

Against him, Bucky whines and starts humping his leg. “ ‘lpha,” he grumbles, embarrassed. He’s been acting upset and erratic since they came home yesterday. He’d cried when the confusing behavior started up, afraid that Steve would think he didn’t really want to be there, or that he didn’t want Steve as his alpha. Steve doesn’t think he’s heard someone call him ‘Alpha’ so many times in a twenty-four hour period in his life.

“That’s right, bub,” he reassures him with another tight squeeze. “I’m your Alpha. And you’re my good omega. Gonna make it official real soon.”

The only reason he hasn’t, is because of the birth control injection that needs twenty-four hours to be fully effective. But Bucky doesn’t know that. He thinks the shot he received yesterday morning was just a mega-dose of vitamins. He has no idea that it’s something Steve quietly told Raynor to administer before they left the ward, something he wanted done for Bucky’s welfare. It’ll prevent pregnancy, just until they get situated, until they’re bonded and Steve can be sure that Bucky is properly settled in his new home.

Bucky hasn’t been told the truth because he won’t understand. He’ll instinctively take it as rejection, just like any omega would; a sign that Steve doesn’t think he's good enough, doesn’t want to breed him up.

Which couldn’t be further from the truth! Steve can’t wait for the day when he’ll get to fill Bucky full to bursting, plug him up with his cum and watch his seed take root, watch the boy’s gorgeous body grow ripe and heavy with their pups. That’ll be a wonderful day, when it happens, but it isn’t happening now. Steve wants to give Bucky everything he’s missed out on in life so far, and that includes a happy, relaxed, and romantic period of child-free bliss with his new Alpha. Time where Bucky is the center of Steve’s attention with nothing to take away from it. There will be plenty of time for pups down the road—maybe even later that same year, who knows? But not right now.

Yesterday had been tough. Steve had been hard pressed to find an excuse to give Bucky as to why they weren’t fucking each other’s brains out. He’d settled on half-truths, saying that he wanted Bucky to work on scenting the apartment and building up a spot for himself in the hallway nesting closet. He’d told Bucky that it would be healthier for him to settle in and calm down a little bit before they made love.

Luckily, Bucky hadn’t known enough to call bullshit on him, but Steve has still been grinding his teeth ever since they got home to the apartment twenty-seven hours ago, not able to fuck a claim into his omega for fear of getting him pregnant.

Now that he’s given it that little bit of extra time and can be sure that Bucky’s fertility is suppressed, Steve tells him that they can go back to the bedroom together, if he wants. Bucky mewls happily and nods, humping against him harder. “Steeve.”

Steve comforts him with a quick hug, and takes his hand. “Come on.” He leads his half naked omega back towards the bedroom. “I told you I’d be gone for less than an hour. You couldn’t wait?”

“No.”

It’s such a firm and stubborn little ‘no’, that it makes Steve chuckle as he guides him to the bed. This is day number two in the apartment together, yesterday was a whirlwind of paperwork and transitions, of new and unfamiliar and figuring out. But today is real, and raw, and Steve hasn’t been completely soft since he woke up that morning and realized that today is the day he’s finally going to get to have Bucky. He’s finally going to get to fuck his omega—no, not fuck: make love to him.

He sits on the edge of the bed and pulls Bucky in close, hands on his waist. “I know it’s a lot of change all at once. It’s okay to be sad, or scared, or even just confused about how you feel.” Bucky grunts and shakes his head, trying to pull away but relaxing when Steve’s hands hold fast. “Use your words, bub.”

“M’not sad,” he grunts, face pinched as he bashfully admits, “I just get nervous.”

“Nervous about what?”

“Dunno. Just that maybe ..." He shrugs and won’t meet Steve’s eyes as he mumbles, "Maybe it’s too good to be true.”

Steve’s heart twinges painfully. “Oh, Honey. Don’t say that. It’s not. It’s not too good to be true. It’s real. You’re here with me, aren’t you?” His fingers slip under the fabric of Bucky’s tee shirt and caress the soft give of his waist. “You deserve good things, Buck. I’m so happy you’re mine now and I can show you that. None of this is any more than what you deserve, Sweet boy.”

“But how can you be sure you won’t, ya know, ... change your mind?”

Steve huffs and tugs him in closer, ignoring the little ‘oof’ of surprise that Bucky makes when his shins hit the mattress. “I’m sure,” he growls, needing to never hear that pitiful uncertainty in his omega’s voice ever again. “Bucky, Jesus. I’ve never been more sure of anything. I’m not gonna change my fucking mind.” He scoffs at the mere notion. “Baby, you don’t know how long I’ve wanted to—” He cuts himself off from admitting something that he shouldn’t: the inappropriate truth.

Which is that he’d been excited that year when Bucky finally aged up to C Hall, to sexual touch therapies that Steve hadn’t previously been allowed to provide him. Steve isn’t supposed to view his omega charges that way—like he’s attracted to them or interested in them as more than patients—but he’s realizing now that he had felt that way about Bucky, since before the boy came up to C hall, even. He’d just buried those feelings deep and convinced himself that they weren’t there. It’d been necessary, otherwise he would’ve been sick every time he had to watch Bucky’s shitty family show up and yank him back out of the sanatorium too soon. Hell, it was hard enough to watch it even with the shield of his own denial. Truth is, Steve’s felt an inexplicable draw to this kid ever since he’d very first been wheeled into Hydra, strapped down, crying, and lost.

Swallowing thickly, he changes what he was going to say to a quiet, “You don’t know how happy I was, when you said you wanted me to be the daddy,” instead, warming inside when Bucky’s eyes flit up to him in surprise. He smiles softly. “Yeah, I remember you said that.”

Bucky flushes beautifully and does an endearing little squirm. “Hmm.”

Steve chuckles. “See? You’re stuck with me.” It’s a promise more than anything else, and he feels the pleasured shiver that runs through Bucky’s body in reaction to it. “Gonna bond you, Sweetheart,” he murmurs. “You want that?”

Bucky chirps, the instinctive sound making his cheeks color prettily. He glances down at himself, and Steve looks too. His little prick is fattened up, as hard as it’s ever really capable of getting. And his inner thighs are smeared with shiny slick that makes Steve’s cock throb and his balls feel heavy and full. He licks his lips, lightheaded at the possibilities of what he can do to Bucky now that the Sanatorium's rules and restrictions don’t apply to them anymore.

“Jesus,” he rasps, fighting not to give in to the urge to simply grab the boy and toss him up on the bed. Steve knows that, outside of whatever treatments he’s received on-ward, Bucky is very sexually inexperienced; a virgin. That’s why Steve has to do this right. You never forget your first time. “Bucky, Honey,” he says gently. “Do you think you’re ready to be with me?”

Steve’s a lot older than him, and leagues more experienced—in both sex, and life in general. That’s why, even though he’s got no doubt that the boy wants this, it’s still important to ask in the beginning, before things get too hot and heavy. Given that Bucky’s been humping the pillows and sexually abusing common household objects, Steve knows he can’t afford to wait any longer. Bucky needs this, needs to feel loved and safe and claimed, and the best that Steve can do for him is to give him the chance to say yes, to feel like he’s deciding on his own that this is the right choice.

So he reaches up and palms the kid’s cheek, rumbling in approval when Bucky pushes into the contact with a plaintive sound. “Words, bubba,” he coaxes gently. “Tell me what you're thinking.”

Bucky mewls and presses closer, pushing against Steve and climbing up into his lap on the bed. Steve falls backwards and Bucky chirps happily and follows after him, already back to humping his stomach and eagerly yet gracelessly kissing his mouth. “Mm, hmmph, mmm —”

Steve laughs at his enthusiasm and groans at the feeling of the kid rubbing off on him, pushing Steve’s shirt up and smearing slick on his abs. Steve threads a hand into Bucky’s hair and pulls him back so that he can get up properly onto the bed. “Hang on, Honey. Just hang on a sec.” Bucky whines and chirps and generally makes himself into a very squirmy obstacle, but Steve is much stronger and leagues more coordinated than he is in his present condition, poor thing. He’s able to wrangle Bucky onto his back in the middle of the bed and get his shirt off of him—the only article of clothing he was left wearing, anyway.

“Ooh.” Bucky moans and writhes against the chenille blankets when he feels that softness against his naked skin. “Oh, Steeve.”

“Hang on one sec, Buck. M’right here. Not goin’ anywhere.” Steve gets back up on his knees and yanks his shirt overhead. He gets his belt loosened, his pants off, and tucks his thumbs into the waistband of his underwear, ready to shuck them as well. But he pauses and looks at Bucky when he hears the omega’s breath catch.

Bucky is lying there with parted lips, a lax jaw, and prettily pinched eyebrows. His eyes are heated and heavy-lidded as he takes in Steve’s body. Steve smiles tenderly at him and starts to peel his underwear down, watching Bucky watch him, rapt. “What’s the most you’ve done with an alpha, Sweetheart?” he asks, putting a little bit of his Voice into the words to help make Bucky feel reassured. “Mm?”

Bucky licks his lips and stares as Steve’s cock is revealed to him. “An alpha …” he repeats dumbly. “I …” He exhales shakily as Steve tucks his underwear behind his balls and wraps a hand around the base of his shaft. “Oh, God.”

Steve waits, then asks the question again as he gives himself a squeeze and wrings his hand down to the head in one slow, indulgent stroke.

The scent of fresh slick hits the air, sharp and sweet, betraying Bucky’s growing arousal. “Just … um … just …” he breathes, rapt at the sight of Steve’s hand on his dick. “S’just you. At the hospital.”

Steve groans softly. He’d figured as much, but to hear Bucky say it out loud, that he’s a complete virgin except for the times that Steve has touched him, makes his belly flare with new heat and his cock pulse in his hand. “Yeah?” he encourages, letting go of himself so he can lower back down on top of Bucky. He uses a thigh to nudge the boy’s legs apart, making a space for himself in the cradle of his hips. Bucky whimpers and parts beautifully for it, pulling his knees up and tilting his pelvis to try and keep humping on him. Steve presses down obligingly, letting him rub his little prick against his lower abs. “No experimenting with friends?” he checks, because that’s not unheard of.

He won’t be bothered in the slightest if Bucky’s tried to scratch his itch by playing sexually with his omega peers on the ward. That sort of behavior is fairly common in group settings, especially in omegas who’re very stressed. The nesting pods in the sensory room back at Hydra, for instance, are a popular place where the omega patients will often pile up and rub on each other for comfort.

“Just me, huh?” Steve says fondly, when he can see that the answer is still a no. He smiles and cradles Bucky’s face in his hand, thumb stroking back and forth over his cheek. “You nervous?”

Bucky hesitates, but then he nods. “Just … just ‘cause it’s so private,” he says, blushing. “Because m’not used to it. But I’m not scared, I promise.” He bites his lip, eyes flitting over Steve’s face like he’s working up the nerve to admit something else. “I’m glad it’s you,” he says, smiling a little, nervous and honest. “I’m glad it’s all been with you.”

Jesus. Steve’s whole chest feels full and warm, like bathwater about to overflow, and he doesn’t think twice before saying, “I love you, Bucky.” He nods along as Bucky chirps and his eyes water happily. “Yeah. I do.”

“Steve.”

Bucky starts to cry, and it hurts Steve to see it, to think of how long it’s been since any person has told him that he’s loved. So he repeats it a few times more, dipping in to kiss lightly at the boy’s lax, plush mouth. “I love you, ‘mega. Love you. Love you.”

“Steve, oh.”

“Want to make love to you,” he murmurs against his cheek, lips dragging over skin, down to kiss his jaw, his neck. He mouths over the visibly swollen spot of his glands, and Bucky jerks and cries out. He starts humping frantically against him, and Steve nods and pushes down into it, giving him pressure to rut against. He slips a hand into Bucky’s hair and cradles his skull as the boy gets close. “That’s it,” he says, “That’s it, Honey. Make yourself cum.” He lets his teeth scrape lightly over Bucky’s glands. “Want to make you feel safe, ‘mega. You’re so safe with me.”

Bucky stiffens and comes, shuddering through it and clinging tightly to Steve the whole time. Steve hums encouragingly and lets him ride it out. “Good boy,” he praises. “Such a good boy for me.” He pulls back and looks down at him, smiling tenderly and admiring Bucky’s blissed out features.

Slowly, Bucky’s face relaxes from the orgasm, and his eyes flutter back open to look up at Steve. He's panting slightly, all bitten-red lips and wobbling chin and long lashes. The perfect picture of an aroused omega.

“I want to bond you, Sweetheart,” Steve whispers, knowing that this needs to be Bucky’s decision. Even if his biology ultimately took the choice away from him three years ago, Steve can at least give him the illusion of choice now. “Right here." He swipes his thumb over Bucky’s glands. “When I’m inside you. When we’re tied. I’ll bite you, and we’ll be connected forever.” He waits a moment, letting the silence emphasize the gravity of what he’s asking. “Do you want that, Bucky? To be my bondmate?”

Bucky’s breath hitches and his face absolutely crumples. He cries and nods rapidly, whining and clinging to Steve as though he can possibly get any closer. “Please, Steve, please.” He grapples for Steve’s head and kisses him sloppily, desperate and greedy. “Mmm, mmph.”

Steve indulges him for a moment or two, letting the inexperienced omega explore and make himself feel good. But then he takes control, using his fingers in Bucky’s hair to guide him. He slots their mouths together and kisses him with agonizingly slow pressure. He waits for Bucky’s muffled sob before he dares to slip inside, delving into his mouth—hot, and wet and slow—touching their tongues in a dirty roll and showing him how good it can be. “Tell me,” he insists, pulling back and thumbing at the corner of Bucky's eye. “Tell me what you want.”

Bucky whimpers and tries to kiss him again, his hands sliding restlessly over Steve's back and shoulders. “Yes,” he pants. “Yes, yes. Alpha. Mate me. B-bond.”

Steve rumbles deep in his chest as his hindbrain flares with white-hot satisfaction. 'Yes, Alpha'—that’s all he needed to hear. “Okay,” he says, making sure to give Bucky one last, tender peck on the mouth to show him that he’s not angry, that his voice has gone to gravel and his body tensed to stone because of how happy he is, how excited. Every primal, possessive part of his brain is stimulated at the thought of finally claiming Bucky as his own. Claiming this sweet, soft, vulnerable, needy boy is the only thing he’s yearned for in recent memory, and now he’s finally going to get to do it.

He tries to hold it together for Bucky’s sake. He doesn’t want to be an animal, even though that’s exactly how he feels, his mind rapidly devolving into pinhole focus on keywords like ‘mate’ and ‘breed’ and ‘mine’. But he takes deep breaths and keeps control of his instincts because he wants this to be good for Bucky. He wants this to be lovemaking, not fucking. He wants it to be tender.

“Okay, Sweetheart,” he rasps, resting their foreheads together and nudging their noses. “Turn over on your belly when I let you up,” he says. “Can you do that for me, Omega? I want you to turn over and present for Alpha.”

Bucky mewls in excitement and his hips tilt up to rub his cocklet on Steve’s belly again. “Alpha!” he chirps happily, ostensibly from being called ‘Omega’ like that for the very first time—Affectionately, possessively.

“That’s right, Buck,” Steve praises. “I’m your Alpha. And you’re my Omega.” He kisses him once more, but pulls back before he can get carried away. He yanks himself away from Bucky, getting onto his knees and sitting back on his heels. “Come on.” He taps Bucky’s hip impatiently, grinning when he notices that it’s his own cock, resting thick and heavy between his thighs, that has Bucky wide-eyed and slack jawed in fascination.

“It got bigger,” he breathes in amazement. In the blankets, his hands twitch like he’s imagining taking hold of it.

Steve has no doubt that he would, but he tuts to discourage it because he knows he won’t have the willpower to redirect the boy if Bucky decides to start grabbing for his dick. “Don’t get distracted, now,” he rumbles, letting his Voice edge the words with authority. “Present for me, Omega. I know you know how.”

Bucky nods, still staring as a whine starts up in his throat, reedy and plaintive. He begins to bite and suck on his lower lip again as he looks his fill at what may just be the first alpha cock he’s ever seen in his life. Certainly it’s the first one he’s ever seen in person. Steve feels himself getting harder as he watches Bucky’s fascinated eyes flit between his cock and thighs and balls. He seems to like the slight bulge of Steve’s flaccid knot the best, staring hard at it as he makes unconscious little humping movements against the bed.

Steve catches a glimpse of his slick-smeared thighs and loses patience. Bucky squeaks in surprise when Steve’s hands land on his hips and urge him to turn over. “Yes!” he yelps.

Steve lets go, knowing that the omega wants to do it himself, wants to show his Alpha that he’s eager to present. “Good boy,” he purrs, when Bucky has gone face down and ass up in the bedcovers, his knees drawing up under himself and then spreading to achieve that picture-perfect arch in his back.

Steve shuffles closer on his knees, until his thighs are pressed all along the backs of Bucky’s. He splays one hand out on his sacrum and uses the other to part his cheeks, groaning at the sight of his pink and pulsing rim.

It's so wet. Steve sets his cock against it and holds it there, pulses his hips and watches the head peek out from the foreskin, shiny and pink, right over that wet and clenching muscle. “God,” he breathes, amazed at the contrast between them. His dick looks dark and angry against that sweet and vulnerable hole, rigid and mean where Bucky is soft and puffy. “So perfect,” he whispers.

He lets his fingers trail further down, over Bucky’s plump taint, admiring it and rubbing in gentle circles. He nudges Bucky's tight little sac, imagines how wide and bare the stretch of skin will be once Bucky’s had his operation. There’ll be so much to play with, so much smoothness and sensitivity. Steve imagines spending half an hour there, just using his mouth on him, sucking and rubbing and making him come.

“Alpha,” Bucky whines plaintively, pushing his ass back in a needy little wiggle. “Please?”

"Yeah, Baby." Steve lets go of his cock and curls over Bucky’s back, covering him, wrapping an arm under his belly and hugging him back against his chest. "I’m gonna go slow,” he promises. “Fingers, then my cock. I want another orgasm outta you before I put it in.” He kisses the nape of his neck, slides his hand back and down to slip between his cheeks and touch his fluttering rim. It’s so hot, the searing heat of his body when Steve presses the tip of a finger inside making his breath catch and his cock throb. Fuck. He’s going to be in there.

That first finger goes in with hardly any effort, Bucky's body sucking it in. Steve eases in a second when the omega begins to whine impatiently. “Shh, it’s okay,” he soothes, dragging his nose along his hairline and inhaling his scent as he gives him gentle thrusts. It so wet, so tight but so easy to move inside him. Two fingers become three as he pumps his hand, curling on every slow drag out, feeling Bucky shudder underneath him and tension pull through his body as he gets close. “You gonna cum for me, bub?” he whispers, kissing his nape. “Come on, Honey, come on …”

Bucky moans gutturally as he tips over into orgasm, ass clenching rhythmically and flooding Steve’s hand with slick. “Oh, oh, oh …”

Steve kisses the shell of his ear. “There you go,” he praises. “Did that feel good?” Bucky nods, still panting, and whimpers a shaky little ‘yeah’ that goes straight to Steve's knot. Steve hums and pulls his fingers out. He spreads all that wetness onto his dick, squeezing himself hard at the base for a few seconds to try to stave off his own pleasure. He worries this isn’t going to last very long. “Good job, Baby. So good for me. So beautiful, so good.” He keeps murmuring praise as he pulls back on his knees and looks down at where he’s lining himself up. His cock throbs in his hand at the sight of Bucky’s puffy, twitching rim. “Fuck, Honey. You’re so beautiful.”

Bucky moans and rocks in place, scrubbing his face into the blankets as he begs to be filled. “Please, pleease. Alpha. Steve.”

“M’right here,” Steve soothes, steadying him with a hand on his lower back. “Shhh. I’ve got you.” He rubs his cockhead back and forth, slippery and red and wet, pressing hard on Bucky's rim but not quite penetrating him. “You ready?” he whispers, waiting for Bucky’s whimper of assent before he starts to push in, slow and steady, gently increasing the pressure until Bucky's rim gives way and he pops inside. He keeps going until he’s buried to the hilt, his balls pressed up tight to Bucky’s ass. “Oh, God.” He’s so tight, his virgin cunt gripping Steve’s cock so perfectly.

Below him, Bucky moans and looses a warbling, devastated, sob. “Oghn, Steeve!”

“You okay, bub?” Steve tries with all his might to hold still while Bucky adjusts to his size. He pulses his hips gently, not pulling out much at all, but letting the omega feel him inside his body. “Feel good?”

“Nnngh,” Bucky whines, nodding against the blankets. “Ss-steve, please …” He starts to move his hips, trying to push back on Steve’s cock.

“Fuck, Honey. Wait, wait, wait.” Steve swallows dryly and grabs his waist as he tries not to lose control. “H-hang on, hang on,” he pants, eyes squeezing shut. “Ohfuck.” He hasn’t gotten laid in a long time, and it’s been years since he’s fucked an omega, let alone one he cares about as much as Bucky. He’d forgotten how amazing they feel. “Oh, Bucky,” he breathes, folding back over him to cover him with his bulk. “Bucky, Baby, you’re perfect.” He nuzzles into the curve of his neck, mouthing at his glands and inhaling the rich scent of omega—his omega, the boy he’s about to claim. “Fuck, Honey. I love you, you know that? So beautiful.”

Bucky mewls happily and squirms underneath his weight. “Love you, Steve, please. I’m ready. I’m ready.”

Steve growls and pulls his hips back, then ruts into him. Their skin claps together as he starts up a slow, deep pace; pulling out only halfway and fucking back into him hard and firm, their balls knocking together on every thrust. Bucky keens and tries to move with him, but there's not much he can do besides take it. He tips his head to bear his neck, whispering a quiet, “Alpha,” as Steve rocks them together. “Alpha, please, I'm ready.”

Steve seals his mouth to Bucky’s swollen glands and sucks hard. His teeth ache with the urge to bite down, and the sounds Bucky makes have his cock swelling larger, his knot catching a little more with every thrust. He realizes he’s going to come sooner than he’d like. “Buck,” he rasps, “I’m close. Gonna knot you, okay? Gonna bond you.”

Bucky keens hysterically and nods, desperate tears clogging his voice as he shoves his hips back and cries, “Alpha, alpha, alpha.”

Steve growls and slips a hand under his belly, finding his cocklet and rubbing it between his fingers. “Come on, Sweetheart,” he grits. “Want to feel you cum on my cock. One more time, come on, gimme one more.”

Bucky sobs and nods as he tips into his third orgasm. With Steve’s swelling knot inside, it’s stronger than the others, his body locking down and finding a true release from being filled. Steve smells it first, and then groans at the huge gush of slick that floods between them in a hot, sticky mess. “Oh yeah,” he groans, his knot popping fully. “Fuck, baby, you just squirted. F-ffuck …” He ruts harder, knot tugging deliciously on Bucky's rim again and again. The tight band of pleasure in his belly finally snaps, and he starts to come.

That’s when he finally, finally opens his mouth and sinks his teeth in. He feels the glands burst in his mouth, tastes blood and Bucky and mate. He growls furiously and fucks him hard, his knot tug-tug-tugging on Bucky’s rim.

Bucky squeals and shudders through another orgasm that surpasses even the last. His release squirts in a hot gush between them, all over Steve’s groin and belly, and his turgid little cocklet spurts in Steve's hand as he loses control of his bladder. “Nnnnh!”

“ ‘mega,” Steve growls, releasing the bite to seal his mouth over the wound and suck. Bucky wails, contracts into another orgasm, and pisses himself a little more. Steve’s lost in a cloud of bliss, physical pleasure and mental euphoria overwhelming his senses completely. He grunts and growls against Bucky’s skin, smearing blood on his shoulder and squirt between their bodies, humping and humping and not stopping. It goes on for long minutes, he isn't sure how many, but he’s vaguely aware of Bucky beneath him, dribbling and crying and shuddering in tiny little aftershocks as they ride out their tie together.

They collapse flat on the bed, hips still working in tiny movements. In the blankets, Steve slides his hand over the back of Bucky's and threads their fingers together. Bucky gives a gentle squeeze of acknowledgement, feeling blissed out and safe.

—and that, right there: Safe. That's the first time Steve feels the bond. Bucky is so incredibly happy and safe. The realization brings tears to Steve's eyes.

Finally, they’re connected. Bucky is his mate.

A.N.: I've had some asks about this fic , requesting extra ending scenes, so I'll likely swing back around at some point and add more parts to the epilogue, but for now this is the official ending. Hope y'all enjoyed! Thanks for reading!

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@ultimatechrisbingo,

card: sarahowritesostucky

Square G1: Presenting

@anyfandomdarkbingo

card: sarahyellow / sarah-writes-stucky

Square I4: Knotting

@marvel-smash-bingo

card: sarah-writes-stucky

Square I2: "give me one more orgasm"

Tags:

@scottishrosefury

@not-that-syndrigast

@lolitsbuckybarnes

@kathy-2005

@stuckysgal

@thenewmissescullen

@sapphirebarnes

@Yoruse

@autumnrose40

@alexakeyloveloki

@gretasimp

@kandismom

@ivoryangel1290

@mrs-rogers-barnes1

@iloveshawnieboi

@m0k0k0

@sousydive

@sapphirebarnes

@kandis-mom

@juicyfruit-22

@bloodrosefuryao3

@laylamikaelsonbarnes

@leighta

@drfellow

@era

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