#stepbro!dean

Summary: Daphne Winchester is John's unknown child from his teenage years, from an escapade before meeting Mary, and she reunites with her brother Sam, and this time with an older one, too.

Starring: Brother!Dean & Brother!Sam & Stepsister!Reader (Original Character.)

Tw: nothing, except a little breathing problem and a slight mention of a traffic accident. Here, siblings fight, reunite, and then fight again.

Somewhere near Alabama, in a motel.

There was a loud knock on the door and a faint sound of boots clunking against the wooden floor outside.

The Winchester brothers looked at each other as they reached their hidden guns. When they both got up and started heading the door quietly, Dean tried pushing Sam behind himself, to protect him from whatever stood behind the door. He then reached the handle quietly and on a count of three, swung the door open, his gun pointed at the new face.

"Who are you?" Dean's voice came out rough, his brows furrowed with a deep crease running in between. Sam suddenly moved forward, his greens shining bright.

"Deph!" He called out and pushed Dean slightly to reach his stepsister. "I've missed you!" The girl smiled while her arms wrapped around Sam's neck, struggling to reach his hair to mess with it. "You've grown!" Sam giggled as his hug tightened around her. "Well, you're still short!"

Dean, however, stood near the door, desperately expecting an answer. A foreign expression taking over his face. "What is going on?" He put his gun on the nearby shelf.

"This, Dean-" said Sam as he pulls Deph in, "- is Daphne. She is our stepsister."

"Our what?" Dean's eyes widened as his body became rigid. His mouth opened and closed but made no sound. Sam looked at him one last time and pulled Daphne in.

"Let's get in!"

Dean was the first one to break the sudden silence inside the motel room. "So what the hell is going on?" He questioned as he sat up straight on the worn-out couch. Sam groaned as his palms found his face. A deep sigh left his lips before he began. "So Daphne found dad - our dad - a few years ago. Dad then brought her to me and told her to keep an eye on me." He said and added, "She was also studying at Stanford." Dean gulped and stayed quiet, various thoughts crossing his head. "But we kinda lost touch after the incident."

"Which incident?" Daphne felt herself bad - really bad - seeing that John didn't even mention her to her other stepbrother, Dean. She expected Dean to get disappointed and mad since Sam knew everything while Dean wasn't even considered in the first place. However, he looked stoic, thoughtful even, and didn't crash out. What also broke her heart was the cruel fact of Sam not telling her to Dean either. She felt her chest tighten.

"After Jess passed away and Sam left, we didn't speak. I tried my damn best to find Sam -" she paused, "- to find you guys again." Dean's dark greens found Daphne's hazel eyes and he furrowed his brows. "Well, how did you find us then?"

Daphne felt her cheeks brighten due to the confession she was about to make. "I asked my friend to track Sam's phone signal. But because you were constantly on the run, it took a long time to be able to meet in flesh." Dean nodded gingerly and stayed quiet, trying to process all the new information he was suddenly faced with.

"How old are you?" His hands found his hips, strictly interrogating his newly-found stepsister.

"24. You?"

"I'm 28." Dean's voice sounded strong enough to cut through metal. Daphne, on the other hand, wasn't fazed by his stepbrother. "Great. So he had you, then me and lastly Sammy."

"Sammy? You don't call him that!" Dean got up from his seat abruptly. A disgusted expression took over his face. Daphne was taken aback by his sudden eruption, nevertheless stood her ground. "And why not? That's the nickname I gave him."

Dean stood there for a moment, his eyes shortly flicking to his brother's. Sam looked guilty and just toyed with the ends of his fingers. "When were you planning to tell me that we had a stepsister, Sammy?" He growled. "On our deathbed?"

Sam looked at Dean quietly, trying to think of a way to exit this uncomfortable confrontation. He scratched the back of his neck, his nape, and decided to just go with the truth. "Dad told me not to tell you."

"Why not?" Dean's voice didn't alter, didn't soften. However, Daphne was able to see through his squinted eyes. She saw how broken his heart got, how the very centre of his greens shook, and how his lashes started clumping at the ends.

"I don't know!"

She never had any siblings until she met Sammy, yet the same love she had for him started emerging for him, too.

Her older stepbrother, Dean.

The same day, a few hours later.

"Where do you think you're going?"

Dean's voice echoed through the living room while Daphne was busy getting ready. She put her hair up in a ponytail and reached her leather jacket.

"To haunt down some father fuckers."

"Whats?" Dean stared at Daphne in surprise as Sam was laughing in the background, completely uncontrolled.

"Yeah, what am I supposed to call them, the love of my life? They're monsters! They kill people."

Dean was caught off guard and was trying so hard not to let a huge smile creep up his face. When Sam breathed deeply and continued laughing like it was his last day on earth, both Daphne and Dean turned at him, scowling.

"Shut up, Sammy!" Sam was only then able to control himself and let out an exasperated sigh. "Oh great, now I have two of them."

As Daphne turned back and was about to get in Impala, Dean tugged on her arm - trying his best not to be too tough. "You're staying here. At the motel." The girl raised her eyebrows, harshly pulling her arm away from Dean's grip. "No, I'm coming with you. I heard you guys talk about them." She got in the car quickly, leaving Dean utterly surprised. He felt anger bubble inside his veins and rage start to cloud his vision. Sam was behind the duo, feeling the familiar type of tension in the air.

Him and Dean always had some sort of argument before going on a hunt. This was nothing new. Sam shook his head as he got in the passenger seat and called out, "Come on, Dean, what are you waiting for?" The said male cracked his neck in hopes of calming his nerves and got in the driver's seat. The fact that his newly-found stepsister not listening to him was making him feral.

The hunt, on the other hand, went surprisingly well. Daphne was good at what she was doing - really good. She didn't know about the lore, yet her hunting abilities were astonishing. She was quick to move, athletic and strong. The monster was abolished in no time, now that they were three professionals.

10 months later.

"Are you kidding me? Don't touch that bag!" Dean shouted across the room at Daphne, who tried to make sense of all the little drawings on a witch's handbag. She rolled her eyes, completely ignoring Dean. "Deph, no!" This time, he sounded more serious and started nearing her. Daphne exhaled loudly, tired of Dean's way of doing hunts and searches. "Don't tell me what to do, Dean!"

"You don't know whether that bag is safe to touch or not. It may be spelled with dark magic." He stood near her, his brows furrowed. Daphne looked up at him yet continued touching and twisting the bag. "I gotta see a bit more, Dean. It wouldn't kill anyone."

"You wouldn't know that!" He argued. Daphne stopped touching the bag and got up from the wooden chair. "As if you do, Dean!" She was trying so hard to keep her anger in, trying to trap it inside her body. She swallowed thick and snatched the bag from where it laid on the table. Dean caught her arm, a scowl making its way past his lips. "Stop this, Daphne!"

This, a man telling her what to do - especially for her own safety - was new. John was almost never with Daphne's family, and she had to grow up to be strong enough to protect herself from the world - while also hunting different monsters her dad mentioned. She breathed deep and looked right at Dean's dark greens. "I've been doing this since years, Dean." He glared at her, hard. "Just because you've been doing it for years, it doesn't mean that it's right."

Sam entered the room upon hearing all the shouts and growls coming from his elder siblings. He yawned loudly, catching their attention fast. "You guys are about to wake the whole world up."

Daphne smiled tightly, her eyes showing no joy. "It's because your brother called Dean is being as stubborn as ever! I've known him for ten months now and he hasn't changed a bit!" Dean chuckled at that - actually chuckled - clearly enjoying making his sister mad. "Well, that's too sad, sweetheart, but you're not the most fun person to be around, either." She scuffed, yet she couldn't deny the stinging pain she felt in her heart seeing Dean get mean.

"That's why dad didn't tell you anything, even your own sister! You are too damn stubborn and selfish!" Dean felt his breath hitch and his mouth sealed shut. His gaze landed on the table, quietly backing away. He knew, she was right.

As the elder siblings started getting unnaturally quiet and the air got negatively charged, the windows around the bunker started shattering one by one. Sam's eyes opened as he crouched down. He instinctively reached Dean to pull him aside, while Dean reached Daphne to pull her. Daphne followed Dean's lead, who followed Sam. They all hid under the huge wooden table, breathing hard.

"What the hell?" Daphne and Dean muttered at the same time. Sam furrowed his brows, trying his best to remember the lore. "I - I'm not sure!" He tried his best but nothing about these witches' case was crossing his mind at the moment. "I can't remember anything!"

The shattering didn't stop and all the mirrors, glass jars and plates started exploding as well. Daphne covered her ears with her trembling hands, causing Dean to pull her to his chest. "It's okay, it's okay."

Daphne was able to smell his brother's now familiar smell, like a gentle hug around her senses. It was the first time she was this vulnerable near Dean. He didn't know yet, but this had triggered her and made her remember the traffic accident she had years ago. When she felt unable to calm herself, she held onto his arms tightly, almost bruising his skin. "We're alright, Deph. We're okay. Breathe." He spoke gently, pushing away her baby hairs. "Look at me -" he said and held her chin gently, "- breathe. Okay, don't stop breathing."

When the clattering, shattering and the explosions ended, Daphne hugged Dean tight under the table, unable to stop her hot tears gushing from her pretty eyes. "I'm so sorry Dean." Dean chuckled lowly as he rubbed her back. "I know. You're my little sister and kids make mistakes." His confident tone made Daphne smile.

Sam, on the other hand, was busy watching them genuinely bond for the first time. He knew, that after this, they would be inseparable.

Just like him and his brother.