Work Text:
Steve Rogers, the iconic Captain America, has always been presented as a paragon of virtue and heroism. However, this story reveals a hidden truth: Steve has a twin brother, created during the same Super Soldier experiment, who is his complete opposite. Unlike Steve's selfless nature, his twin is consumed by ambition, greed, and a deep-seated jealousy. This twin resents being cast aside and forgotten, and he has been secretly manipulating world events to undermine his brother's reputation and the Avengers' efforts. The Avengers, including Tony Stark, Natasha Romanoff, and Thor, remain unaware of this twin's existence, making them vulnerable to his schemes. You did not know, either.
Steve was your boyfriend. Your sweet, darling boyfriend. You adored him so deeply, and sure he was a little vanilla, but that didn't stop the love you felt for him.
You finished work Friday evening, and got home to a small cabin in the forest, still in the Avengers Compound grounds but far enough away that it was your own space. You walked into the home, and closed the door behind you and smiled when you saw Steve lounging on the couch. Obviously not noticed that there was something slightly off with him.
"Hey, sweetheart." He said, his voice smooth and familiar. "You're home early."
"Am I?" You question, without a second thought as you shrug your coat off.
"Maybe I just missed you," he says with a chuckle that doesn't quite reach his eyes. "How was work? Anything interesting?" His tone is warm, but something in his gaze lingers just a second too long—like he's watching for your reaction.
"Fine" You answer, smiling at him. "I think I'll nap, before dinner sweetie"
He steps forward, reaching out to gently squeeze your shoulder—his touch is warm but calculated, his grip just a fraction tighter than Steve's usual softness.
"Of course. You rest." His smile doesn't waver, but there's something hollow in it now. "I'll wake you when dinner’s ready."
As you turn away, his expression shifts slightly—a flicker of calculation behind the mask of concern. Something isn't right. You shrugged it off as nothing, you were tired. It was the end of the week and the week had been long, so you walk to your shared bedroom. The cabin was only small, only one floor. It came with a bedroom, a large bathroom, and the living room and kitchen sharing one room. Steve didn't need much space, and nor did you.
Steve watched as you disappeared down the hall, his gaze never leaving your retreating form. Once you're out of sight, he lets the façade fall away. His smile turns into a smirk, and his shoulders relax, shedding the tension that came with maintaining the illusion.
"Too easy," he mutters under his breath, his voice losing the warmth and affection he had put on for you. "She doesn't even suspect a thing..."
﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌
When you wake up and slowly come to, you try moving in the bed but when you can't your eyes open wide, quickly seeing that your wrists and ankles were tied with rope to the bed frame.
Steve, or rather the man masquerading as Steve, stands at the foot of the bed watching you with a smirk. He leans casually against the bed as he speaks.
"Comfy?"
"Stevie" You say, your tone laced with confusion. "What is this? Untie me"
He chuckles, his amusement growing as he watches your futile attempts to free yourself.
"Now where would be the fun in that, sweetheart?" His tone drips with sarcasm. "Besides, I think we need to have a little chat first."
"What do you mean?" You ask. He steps closer, tilting his head with a cold smirk.
"You really didn’t notice? All this time… and you never realised I wasn't him?" His voice drops to a mocking whisper. "I’m flattered." He leans down, gripping the bed frame beside your head—too close for comfort. "But let's just say… the real Steve Rogers isn’t here right now."
"Real funny" You mutter, still thinking this was all a game. "Let me go, what the fuck is this? You said you weren't interested in bondage"
He lets out a sharp laugh, his grip tightening on the frame as he leans even closer—voice dropping to a dangerous whisper. "Bondage?" His smirk turns cruel. "Oh… this isn’t some game. This is payback."
"Payback?" You say, your voice breaking as you do. Your eyes wide as you look at him, and that's when you notice the little differences. There weren't many, but you could tell... This really wasn't Steve. "Who are you?"
"Took you long enough," he says with a scoff, his tone cold and mocking. "I have to say, I'm a little disappointed in you, darling." He straightens, standing tall as he towers over you. The smirk on his face is almost sinister, his gaze sharp and calculating. "Let's just say I have a deep resentment toward your oh-so-perfect Captain America boyfriend."
"Where is Steve?"
He rolls his eyes, almost bored. "Oh, don't worry your pretty little head over that. Your beloved Steve is tucked away, far from here." He paces around the bed, his footsteps soft but intentional. He seems to relish the sight of you tied up and helpless. "After all, I can't have him interrupting my plans, now can I?" he says with a smirk.
"P-plans?" You whisper, you pull a little harder on the ropes, they weren't budging.
"Oh, you have no idea, sweetheart. I've been watching the two of you since you started this little relationship. The way you adore him, the way you think he's some sort of noble hero." His expression darkens, his gaze becoming colder. "But let me tell you something about sweet, precious Steve Rogers, your 'perfect' boyfriend. He's been lying to you from the very beginning."
"Lying to me? About you? Who are you exactly?"
"You can call me Steve, or Captain... it doesn't matter" He answers darkly. You watch in horror as he climbs onto the bed.
He moves over you like a cat stalking prey, a confident, predatory grace in his movements. His gaze is almost hungry as he lowers himself over you, his body close enough that you can feel the warmth radiating off him.
"You're even prettier up close," he murmurs, his voice lowering to an almost intimate tone. "And so defiant. I can't wait to break you, to make you mine."
"I'm Steve's" You say quietly, refusing to cry as you do.
"Oh, you think you belong to him, do you? You believe he's your hero, your protector, your sweet, caring, noble boyfriend… the true Captain America."
He leans in even closer, his breath washing across your skin as he continues in a almost mocking whisper.
"You're a fool, darling." He then moves down, pressing his lips to yours. You try to move away, but his hand holds onto your chin, keeping you in place for him. His kisses were rough, almost possessive. A stark contrast to the tender, affectionate kisses you were used to from Steve. His hand grips your jaw, holding you in place as he deepens the kiss, his body pressing against you more solidly.
It's dominating, almost possessive—as if he's marking you as his. When he finally breaks the kiss, he pulls back, his gaze roaming over your face.
"Mine," he whispers, the word almost a growl.
"No" You whisper, though the grip he had on you, it was awaking something, something you wanted to ignore. You were Steve's girlfriend...
"Yes baby" He says with a grin. "Let's see what you look like without these clothes on, betcha look real pretty"
"No, please" You beg, the tears now burning your eyelids. He moved with a wicked grin on his lips, the man that looked like Steve reached behind him into his back pocket. You felt sick when you noticed he was wearing Steve's outfit... His suit. You hadn't noticed before... You felt like an idiot for not noticing how un Steve the man was.
He shuffles closer, a knife in his hand from his back pocket. And then he starts slicing your work uniform off your body. You don't thrash, he didn't seem like he would put the blade to your body, you didn't want to get cut accidentally.
You watched as he sliced off your work shirt first, and then your trousers, throwing the discarded clothes on the floor. Steve would of taken them off slowly, kissing your skin, and then he would of stopped his touches to put the clothes in the washing hamper.
He looked down at you, his body large and looming over your body, now over covered with your simple black bra and white panties.
"You're beautiful" He whispers. "Too beautiful for Steve to have you all to himself"
"Where is Steve?" You ask quietly. He didn't answer you, he moves the knife down, pressing it flat against your shoulder, he slides it under your bra strap. "Please, don't"
He didn't listen, he cuts the bra strap, and then the other side, and then he moves the knife to your cleavage. Your chest was heaving, the blade was so close, too close to your flesh. He cuts the bra where it meets between your breasts, the fabric falls pathetically, exposing you to him.
You watch as he licks his lips as he eyes your nipples, you thrashed against the ropes, wanting to cover your body from him.
"Oh you are so fucking pretty angel" He says, his eyes wide. You watch as he moves the knife, hovering over your body as he moves it down towards your panties.
"Please, you don't have to do this, please" You whimper, not-Steve moves, his eyes widen as he looks down between your legs.
"Oh baby girl, you're wet" He says with a dark chuckle. With his free hand he presses a finger to the wet patch on your panties. Your curse your body for betraying you. The problem was, you enjoyed this sort of stuff. The ropes, the knife play... But Steve never could do that. Your body jolted again when his finger prodded the wet patch again.
"I've gotta see this, I need to taste you" He growls, with the knife he cuts your panties off and throws them away, leaving you completely naked. The tears were falling down your cheeks, your eyes wide as you looked at the man. He moves quickly, his mouth was on you in seconds, his tongue slid through your wet folds, he groaned as he tasted you.
"No" You whine, but you couldn't stop the moans leaving your lips. Steve didn't go down on you very often, but you loved it. And his tongue was hitting all the right spots, it felt heavenly.
"Oh fuck" You moan.
"That's right baby, moan for me, moan for your Captain" He chuckles before sucking your clit into his mouth.
You cried out loudly, your wrists and ankles pulled against the ropes, leaving red marks on your skin as you thrashed. And then suddenly you felt two fingers poke at your sex, he pushed in two fingers as his tongue expertly moved around your clit.
"Uhh-oh fuck!" You cry, you felt deeply ashamed as you felt the familiar coil in your stomach snap, you knew you were leaking over his fingers as your pleasure rips through your body.
"That's it" He chuckles darkly. "Bet Stevie can't make you come like that, you taste so fucking good... I'm gonna fuck you now, fuck you nice and good"
"Stop right there!"
Your eyes snap to the doorway.
"Steve" You whisper, his copy stands up and looks at the doorway, the anger obvious in his face. Steve and Bucky stood in the doorway.
"Bucky, take her" Steve growls. "I'll handle him"
Bucky listens and moves to the bed, you felt weird about him seeing you naked. Steve's twin tried to stop Bucky, but Steve swung first, and the men started fighting. Bucky wrapped a blanket around you and carried you out from the bedroom.
You weren't sure how much time had passed since everything was moving so quickly. Bucky kept you close to him as the team came into the house.
Hours later, Steve... your Steve was the only one in the house with you. You were still on the couch, wrapped in that damn blanket.
"He's gone baby" Steve whispers as he sits by you. "I'm so sorry this happened to you"
"It's okay Steve" You whispered, leaning into his open arms.
"It'll go back to how it was baby, just you and me" He whispers. "I'll never hurt you, never do what he did to you, I'll keep you safe"
And you believed him. You just couldn't understand why your heart dropped as he said the words, or why you couldn't stop thinking about him. The Captain...