Yes, Captain (Alpha!Cap!Bucky)

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You drove him absolutely insane.

Stubborn. Defiant. Mouthy. Never listened to anything he said. But that wasn't the real reason that you got to him. Not the real reason why you made him so crazy. But that was Bucky's dirty little secret. He'd never tell a soul.

Of course Sam saw through it. Gave him shit at every turn. Never let him live it down. Reminded him as often as he possibly could. Because Sam lived for annoying the Captain. It was his favorite pastime. The game he loved to play.

"Get your shit together, Y/N!," Bucky barked through the comm device, causing you to roll your eyes so far back you were sure you could see your brain. "Don't be reckless. Don't be defiant. And most importantly, don't be stupid." You shook your head. "Yes, Captain."

God dammit.

If you only had any idea. Every time. Made his cock twitch in his pants. Made him wanna pin you against the nearest wall and knot you until you couldn't see straight. Fuck you so hard that the only word you knew was his name. Make you beg, plead. Cry for it.

"Don't be a pain in the ass. Get the info. Get your ass out. Understood?" He was fuming.

"Yes, Captain," you hummed, picking the lock of the server room, taking a quick glance around. Your heat was close. Too close. But you'd ignore it. Focus on the job at hand. Not think about anything else but retrieving the data and getting the hell out.

Definitely not thinking about the Captain.

****

You were taking too long for his liking.

He huffed, picking up the shield and trotted down the hall, carefully. Quietly. Until he reached the door. "Fuckin' pain in my ass. Every god damned time." He pushed it open, spotting you toward the back.

Partnering up for this mission had been a bad idea. But only two people were needed. And as much as he didn't want to admit it, you were the best. Good at fighting. Hand to hand. Handling a weapon. Good with the tech.

"I'm coming," you sighed, watching the screen as it moved incredibly slow. "This computer is probably as old as you," you quipped, making him clench his fists and his jaw. God damned pain. "Like, seriously Cap. It's fuckin' ancient. Who still works with shit like this besides old ass men that don't understand technology?"

"Any insight?"

"Shut up and get the data," he hissed, keeping an ear out for anything unwanted. "You talk to fuckin' much. Always runnin' that mouth. Someone should put it to good use. Put you in your place. Teach you a lesson."

You froze at his words. Was he suggesting something? Or just being typical asshole Bucky Barnes?

"You wanna do it?," you taunted. "Wanna put me in my place, huh? Show me who's boss?" You knew by the way his nostrils flared that he could smell your arousal. Your scent. It was making him fuzzy. Brain in overdrive.

"Should I?," he shot back, not moving an inch, watching you from afar. His eyes shamelessly took you in. "Should I put somethin' in that smart mouth? Get you to finally shut the fuck up? Teach you not to talk back?"

"Yes, Captain."

He was on you before you could blink.

Pinned against the wall. Heavy, hot breath against your neck. Panting. Trying to maintain control and failing miserably. His metal hand went to your throat, squeezing gently, making you whimper. "Smell like sin, sweetheart. When was the last time you had an Alpha between your legs? Too long?"

"Yes, Captain."

He growled, low. Feral. Primal. Like a beast, a wolf threatening to emerge. To take it, take you. Knot you. Own you. Make you submit because that's what good little Omegas did. And you? Well, you were no good little Omega, were you? But this Alpha? He had some pull over you.

"Say it again," he groaned, his hand undoing your belt, desperate to feel you. See if you were as wet as you smelled. "Say it. You want it? Want a big, strong Alpha to fuck you into next week?" His fingers found your soaked folds and he groaned again.

"Fuckin' stunning. Greedy little cunt, isn't it? Needs an Alpha to fill it up, doesn't it? Tell me, Omega," he breathed, lips a breath away from yours. "Tell me to give it to you. To fill you up. Fuck you like you need it. Fuck you like an Alpha fucks his Omega."

"You need it?"

"Yes, Captain."

You heard the clink of his belt, dropping to the concrete floor. His fingers pushed inside your waiting heat, searching for that little spot. He wanted to see your face, hear your cries. Wanted to taste you on his tongue. See if you were sweet as you smelled.

Once you came, he pulled his fingers and swirled them in his mouth, moaning at the taste of you. "For someone so bitchy and mean, you taste as sweet as candy." You moaned at his words, blissed out. Completely fucked and he hadn't even been inside yet.

"Gonna feel so good around my cock. Bet you're aching, aren't ya? Bet you need it, huh? Need it deep. Hard. Fast. Need to come again, baby? Need your Alpha to fuck you good? Dick you down until your beggin' me to stop? That what you want?"

"Yes, Captain."

It was low, breathy and he swore he came a bit at the sound. "Then be a good little Omega and face the wall." You obliged, your face pressed against the cool wall, his hands pulling your hips back, fingers running through your folds. Dragging his cock over you, collecting your slick.

"So wet," he moaned, "gonna just slip right in, aren't I?," he teased, the head of his cock pressed against your ass. "Gonna swallow me up, huh? Gonna take your Alpha's cock like a good little girl? Gonna let me knot you up so good?"

You were a panting, whining mess. No words would come so you just nodded furiously. His flesh hand came down on your ass hard, making you cry out. "Good Omega," he growled, doing it again. Back arched, desperate. Whiny, needy. Fuck, you needed him to do something.

"I own you after this, understood? You are mine. My Omega. You'll belong to me. No one will ever touch this beautiful body again. No one. Do I make myself clear?"

"Yes, Captain."

He slid inside with a harsh thrust, stretching you in the best kind of way. Your walls hugged him, already quivering, so close to coming. "Squeeze me, Omega," he demanded. "Feels so good," he sighed softly, his head falling back at the sensation. "Come on, sweetheart. Come on my dick. Show me how good it feels."

You gripped his flesh arm for balance, but your legs were threatening to give. His hard, harsh thrusts. His moans and groans. The way his vibranium hand squeezed your throat, thumb against the pressure point. It was all too much. Overstimulation. You couldn't even think straight.

"Fuck!," you cried out, panting hard, sweating. "Let go," he whispered, the sound low and throaty. "Let go for your Alpha. And I'll give you my knot. Fill you up nicely, so full. You'll be feeling me for days, baby girl. Achin' in the best way. Knowin' I'm the only one who can fuck you like this. You want it? Want my knot?"

"Yes, Captain."

That was it. You screamed out as your release hit. Harder than you'd ever had, white stars behind your eyes. You felt him swell and catch. Roaring behind you. Hands gripping your hips. He'd leave bruises, marks. His lips pressed against your scent gland, silently asking for permission.

"Yes, Captain."

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