Multifandom One-shots

161. The Forgotten Twin - Dean/Sam x sister reader (Supernatural)

Greetings, my wonderful, amazing readers! How has your week been so far? I hope it's treating you kindly and giving you some moments to recharge and unwind.

I'm so excited to bring you yet another chapter, and I have some amazing news to share: thanks to all of you, this story has now surpassed 30k reads. I honestly can't express my gratitude enough. Each read, comment, and piece of feedback you give means the world to me.

Thank you, daddyhotchypodgey, for requesting a one-shot. I hope with all my heart you are satisfied with what I have given you. So, without further ado, here's the next chapter! I'd love to know what you think, happy reading, and see you in the comments! 

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The warehouse was still; the only sound was the faint rustling of Sam and Dean's attempts to loosen the ropes binding them to the rusty chairs.

"Dean," Sam whispered, glancing at the shadowed corners of the room. "We need a new plan."

Dean gave a huff of frustration, twisting his wrists in vain. "Got any bright ideas?"

Before Sam could respond, the creak of a door echoed through the empty space. Footsteps, slow and purposeful, cut through the silence. Both brothers froze, bracing themselves for a demon. But as the figure approached, she stepped into a slant of moonlight through the shattered window—a young woman, her face partially shadowed yet unmistakably...familiar. She was younger than Dean, about Sam's age, but the sharpness in her eyes spoke of years on the road.

Without a word, she stepped into the dim light, raising her hand. The ropes binding Sam and Dean loosened, as if guided by invisible hands, slipping from their wrists and ankles with surprising ease.

"What the...?" Dean muttered, rubbing his wrists. He looked from the ropes to the woman, suspicion in his eyes. "Who the hell are you?"

"I'm Y/N," she said calmly, her voice steady but edged with a tension she couldn't quite hide. "Your sister."

For a long moment, the only sound was the distant hum of traffic outside. Dean and Sam stared, trying to make sense of what they'd just heard. The room felt smaller, darker, and colder all of a sudden.

Dean let out a short, incredulous laugh. "Okay, is this some kind of trick? 'Cause if it is, it's not a good one."

"No trick," she replied, her voice unwavering, but her gaze softened slightly as it met Sam's. "I know it's a lot. But yes, I'm your sister, Sam. Your twin."

"My...twin?" Sam's mind raced, processing the information as best as he could. "How is that even possible? Dad...he never said anything."

A shadow crossed her face at the mention of John Winchester. "No, he wouldn't. John made it clear I wasn't supposed to contact either of you. He said I was... a liability. A freak." She shrugged, but there was a flash of hurt in her eyes. "But when Yellow-Eyes started targeting you... I had to find a way to protect you, even if it was from a distance."

Sam stared at her, a mix of shock, confusion, and a strange warmth blooming in his chest. He'd spent his whole life struggling with the feeling of being different, of not belonging. Now standing before him was someone who seemed to understand exactly what that was like.

Dean, however, was less convinced. His voice was cold, defensive. "So we're supposed to believe you're our long-lost sister with... what? Magic finger powers?"

"It's called telekinesis, Dean," she said with a small smirk, holding up a hand as the ropes on the floor lifted into the air, coiling themselves like snakes before she dropped them with a soft thud. "I learned to control it. The way Sam and I were... we were both infected with the same demon blood, remember? Yellow-Eyes left his mark on us. I just learned to use it sooner."