Different oneshots between Marvel Cinematic Universe's Bucky Barnes X Y/n (Female Reader) Most of them are an alternative universe, so doesn't match the mcu Storyline, some do, some don't, some oneshots are big, most are average sized or small, (In...
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Title: The Boy Is Mine.
Sumamry: You and Bucky had been dating secretly, you feel kind of jealous when Sharon flirts with your man.
The music in the SHIELD lounge pulsed softly, casting warm shadows over the room where agents and Avengers relaxed, glasses clinking as laughter rippled through the air. The mission had been a success, and after weeks of tension, everyone was ready to let loose.
You scanned the room, finally spotting Bucky tucked into a quiet corner near the back. A small smile tugged at your lips as you watched him from across the room, admiring the way he sat in the shadows, his head down, hair falling just a bit too long over his forehead. His eyes were trained on his drink, but every so often, you’d catch him casting a quick, almost nervous glance your way, as if to reassure himself you were still there.
It had been your idea to keep things under wraps. For now, anyway. You and Bucky had fallen into each other in a way that neither of you had expected—a gradual, cautious closeness that had turned into something neither of you wanted to let go of. But this world of covert missions, heightened emotions, and constant danger made relationships… complicated.
Across the room, Sharon was laughing with some of the agents and made her way toward the back, her steps light as she approached the dimly lit corner. She slid into the chair beside Bucky with a warm smile.
You stiffened as you watched her lean in closer, her shoulder brushing his, as she laughed and placed a hand on his forearm.
“So, Barnes, haven’t seen you around in a while. Where’ve you been hiding?” Sharon asked, her tone playful.
Bucky shifted uncomfortably, his gaze darting to his left. You could tell he was trying to be polite but was quickly running out of room as Sharon leaned in even closer. He straightened in his seat, nudging his chair subtly to the side, as if trying to create a sliver of distance without causing a scene.
“Oh, you know. Here and there,” he mumbled, not making eye contact. You could tell he was itching to get out of this situation.
You narrowed your eyes, watching the scene unfold as she laughed and leaned in even closer. Her hand lingered on his arm, her fingers tracing small, lazy circles over the fabric of his shirt. And Bucky, who could face an army of Hydra soldiers without blinking, now looked like he’d rather be anywhere else on the planet.
That was enough. You stood, pushing your chair back, and walked over, weaving through the crowd with a quiet confidence. You didn’t mind keeping things private with Bucky, but that didn’t mean you’d stand by and watch someone try to flirt him right out from under your nose.
As you approached, Sharon seemed oblivious, laughing at something she’d said as she leaned just a bit closer. Bucky shifted in his chair again, his discomfort painfully clear now.
You reached their table, and with an easy, casual smile, you slipped into the seat directly between Sharon and Bucky, blocking any more attempts at closeness. Leaning back, you made a show of looking entirely at ease, though the glint in your eyes was anything but.
“Hey, Sharon,” you greeted her with a polite smile, giving Bucky a reassuring side glance that only he would catch. “Didn’t mean to interrupt. Just thought I’d join you two. This seat seemed a little… empty.”
Sharon blinked, momentarily surprised, but her smile didn’t falter. She glanced at Bucky, then back at you, clearly picking up on the vibe you were putting down. “Oh, hey! I didn’t even realize you were there,” she said, her voice light, though her gaze held a touch of annoyance.
You raised a brow. “Yeah, figured I’d come over and keep you two company. Things were looking a bit… one-sided over here.”
Bucky’s shoulders relaxed a little as he shot you a look of silent gratitude, though his lips curved into the smallest hint of a smile. Beneath the table, his hand brushed against yours, fingers gently squeezing in a way that felt grounding, reminding you of the bond you two shared.
Sharon laughed it off, but the way her gaze shifted between you and Bucky told you she’d caught on quickly. “Well,” she said, standing up with a forced, light chuckle, “I’ll let you two… catch up. I think Tony just ordered another round, anyway.”
“Good idea,” you replied smoothly, watching her leave before turning back to Bucky.
When she was finally gone, Bucky exhaled, running a hand through his hair. His gaze met yours, and a faint smirk tugged at the corner of his mouth. “Didn’t think you’d come to my rescue like that.”
You shrugged with a grin, scooting your chair closer to his now that you had your space back. “Someone had to keep the sharks away,” you teased, a playful glint in your eyes.
He chuckled, and the sound made your heart flutter. There was something so disarming about Bucky in these quiet moments—the way he let his guard down just enough for you to see past his tough exterior.
“Thanks,” he said quietly, his hand slipping back to yours under the table. “Not sure what I would’ve done if you hadn’t shown up. Sharon’s… persistent.”
You squeezed his hand gently, enjoying the way his thumb brushed over your knuckles, a silent expression of appreciation and warmth. “I noticed. But I also figured you didn’t want to make a scene.”
He shook his head, a little amused. “Subtle’s usually more my style.”
The music in the background softened, and the room began to thin out as agents trickled out in groups, ready to call it a night. In the dim light, you felt his gaze on you, intense yet soft, as though you were the only thing grounding him to the room.
“Guess we can’t keep things secret forever, huh?” he murmured, his voice barely above a whisper.
You smiled, leaning in just close enough for only him to hear. “Not forever. But just for now.”
His smile reached his eyes, the gentle flicker of happiness, and he lifted his drink with a soft clink to yours, your own little toast in the middle of the bustling room.
The two of you sat there, content, your hand in his beneath the table, a silent promise between you both. For now, the secret was yours alone to hold, hidden away from the world.
