The things that break us ~ Brother!Liam Dunbar
Summary: Being Liam's twin sister means you can be valuable to the enemy and that was Theo's plan.
Warnings: Kidnapping, mentions of blood, angst, threats, emotional/psychological manipulation.
Y/n Dunbar had always been the calm before Liam’s storm. Where her twin’s temper burned hot and quick, hers simmered low - quiet, patient, dangerous when pushed. The pack joked that if Liam was thunder, Y/n was lightning: silent until she struck.
That was why Theo took her.
When she came to, her head pounded. Concrete walls. Dim light. The faint hum of pipes overhead. It smelled of damp earth and iron. Chains bit into her wrists when she tried to move.
“You’re awake.”
Theo’s voice slid through the silence like a blade. He stepped out of the shadows, all smug smirk and calculated calm.
Y/n glared, even as her heartbeat picked up. “Where’s my brother?”
“Worried about Liam already?” he teased, circling her like a predator. “He’s fine. For now.”
“You think he won’t tear this place apart to find me?” she shot back, voice hoarse but steady.
Theo tilted his head. “That’s exactly what I’m counting on.”
He crouched in front of her, eyes gleaming with something cold. “You’re his weakness, Y/n. His anchor. You know that, right?”
She refused to look away. “You really think you can use me to control him?”
“I don’t think,” Theo said softly, “I know.”
He reached out, brushing a stray strand of hair from her face. She flinched, and he smiled wider. “Liam’s always been predictable. He acts on emotion. You… you’re different. You think. You hesitate. That makes you dangerous - but also… useful.”
Y/n’s throat tightened. “If you hurt him-”
“I’m not going to hurt him,” Theo interrupted. “He’ll do that to himself. When he realises he can’t protect you.”
~~~~
Hours passed - or maybe days. The chains ached against her skin, her strength fading. But she kept her mind sharp. Liam would find her. Scott would help him. They always did.
When the door creaked open again, Theo had blood on his knuckles. Y/n’s heart dropped.
“What did you do?” she demanded.
He wiped his hands with a towel, not meeting her eyes. “Your brother’s still alive. For now.”
“For now?” Her voice broke.
Theo tossed the towel aside and leaned against the wall, feigning nonchalance. “You should be proud. He came charging in like a hero. Almost got himself killed.”
Y/n’s breath caught. “You’re lying.”
“Am I?” Theo smirked. “You know, I used to think Liam was the only one worth keeping around. All that raw anger… that potential. But I see it now, you’re the one who keeps him grounded. Take you away, and the rest unravels.”
He leaned closer, voice low and venomous. “That’s how you destroy a pack. Not with claws. With heart.”
Y/n closed her eyes, swallowing down the fear clawing at her chest. She wouldn’t give him the satisfaction of seeing her break.
“You think this makes you powerful?” she whispered. “It makes you pathetic.”
Theo’s jaw tightened. For a flicker, something almost human crossed his face - pain, guilt, something she couldn’t name. Then it was gone, replaced by that same cold smirk.
“You sound just like him,” he muttered.
~~~~
The rescue came like thunder.
The door burst open, light flooding the dark. Shouts. Growls. The sound of claws raking against stone. Then - Liam.
He was a blur of motion, rage and panic wrapped into one. When he saw her, everything stopped.
“Y/n!”
Her chains fell away in seconds. Liam’s hands trembled as he pulled her close, checking for wounds, his voice cracking. “Are you okay? Did he-”
“I’m fine,” she lied, clutching his shirt.
Behind them, Theo stood watching, cornered but smiling. “Touching reunion,” he drawled. “Told you he’d come.”
Liam spun, eyes glowing gold. “You shouldn’t have touched her.”
Theo chuckled, low and unbothered. “You’re welcome. Now you know how far you’ll go for her.”
Liam lunged, but Y/n grabbed his arm. “Liam, don’t!”
He froze, chest heaving, eyes flicking from her to Theo. For a heartbeat, the air was razor-sharp with tension.
Then Scott’s voice cut through it. “We’re done here.”
Theo raised his hands in mock surrender. “Sure, Alpha. But remember, everyone breaks somehow.” His gaze slid to Y/n. “Even her.”
Scott’s growl rumbled low. “Not this one.”
Theo smiled, backing away into the shadows. “We’ll see.”
~~~~
Back at the clinic, the adrenaline faded, leaving only exhaustion. Y/n sat on the exam table, bandages on her wrists, staring at the floor. Liam hovered nearby, guilt written all over him.
“You shouldn’t blame yourself,” she said quietly.
“How can I not?” Liam’s voice cracked. “He took you because of me.”
“He took me because he’s scared,” she corrected softly. “Of you. Of us.”
Liam looked up, eyes glistening. “I almost lost you.”
She reached out, gripping his hand. “You didn’t. You won’t.”
For a moment, neither spoke. The silence between them was heavy, but it wasn’t empty. It was full of fear, relief, and everything they never said.
Outside, thunder rolled across Beacon Hills.
And somewhere in the dark, Theo smiled to himself, because even when the pack won, he still left a scar.
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