A/N: Tora's character is from Lilydusk's Webtoon Midnight Poppy Land. Fits into my main fic Every Move You Make after Ch 98, though the scenario is totally OOC/AU to main fic. Because Cain would never let someone else touch his sister without ripping their throat out.

Little Sister's Revenge

She found them.

She hated that.

It burned inside her.

She'd had to find them. Every moment of her life it had been him seeking her; he'd been glued to her since the day she was born. One slip with the hamster, easily rectified. Some silent treatment and a tongue-lashing for the rodent and he was back where he belonged.

Until tonight. She'd taken her eyes off him for one minute because of that Demon Director and he'd disappeared, not even telling her where he'd went. The pussy had to sniff them out for her, pointing her to the whisky reserves in the basement.

And there they were, shoulder-to-shoulder, grunting at one another over a bottle of spirits like they'd done something right.

She'd make him pay. She'd make both of them pay, until they were at her feet quivering and begging her to forgive them. Until they knew just who served who.

She saw the moment he realized she was there. His back tensed, his shoulders rolling up and back as he stood straighter, about to turn.

"Don't move," she growled. The other turned his head, curious to see who she was. She lashed out with her stiletto heel, catching him in the back of the knee and dropping him to the floor. He roared in surprise and anger, but she caught his head and slammed it against the bourbon barrel, leaning in to whisper in his ear. "I said don't move." His teeth gritted in silent acknowledgment of pain while something deep and primal flashed in the depths of his golden eyes.

"Sister-" Cain started. She jerked her head to look at him.

"Kneel."

Cain stared at her. She flicked out her tongue, licking the length of Tora's ear before biting hard on the sensitive skin just behind. Tora hissed, his eyes closing in a mix of pain and pleasure. Cain's hand lanced out, grabbing her shoulder and jerking her back, his eyes wide with shock.

"You left me, brother. With him." She reached up, gripping Cain's chin, her fingers leaving red marks as she pulled him down to her level. "Someone will pay."

His voice was hoarse with emotion. "Let me."

Setsu shrugged, biting her tongue to stop from betraying her pleasure at getting her way. "I could care less. But if that's what you want…" She ran her fingers down Tora's back, grinding her heel into his leg as she shifted her stance. He winced, his fists clenched, but his eyes were hungry with desire as he stared at her. Like waiting to be devoured by a wolf.

She licked her lips. Cain took a ragged breath, gently stroking her hair back out of her face. "All I want is for you to be happy."

Anger rose in her again at his words. "Clearly not, since you left me." She knew she was being petty and obsessive. But when, when had she ever claimed to be anything else? When had she tried to rise above her desperate need to consume her brother? And yet he still walked away.

"Kiss him," she said imperiously, pouring her anger into her words. Cain's sudden intake of breath betrayed his shock. "What? He's fascinating enough for you to leave me; what's a kiss?" She sneered at her brother, her face twisted in challenge.

Cain leaned towards her, his face strangely gentle after her shocking words. She felt his breath caress her skin, the smell an intoxicating blend of whisky and warm mint. Her lips parted as she fought against her innate desire for this man. In an instant, his mouth claimed hers, pressing passionately into her, his tongue hungrily fighting for entrance, sweeping over her lips and teeth again and again. She almost swooned, her grip on Tora loosening when just as suddenly he broke their kiss and knelt. She stood, her heart pounding, her hand gripping Tora's shoulder more for balance than oppression.

Golden and brown eyes warred against one another, falling back into the fight for dominance. Cain leaned forward slowly, balancing on his fingertips, his face inches away from Tora's. With a snarl Tora closed the distance, his mouth merging with Cain's in a kiss so aggressive she saw her brother flinch. She stood transfixed, her hand mimicking Cain's as they both rose to entangle themselves in Tora's hair, her fingertips meeting her brother's, twisting and tugging on his long dark locks. Tora growled and tugged at Cain, throwing her brother off-balance. Cain sat back, wiping a smear of fresh red blood from his lip. Both men were breathing heavily and warily watching one another like lions circling a fresh kill.

Setsu could feel her heart pounding against her ribcage. "Again," she whispered.

Cain shot a glare at her.

"Again," she said, her voice stronger. She jerked on Tora's hair, pulling his head back to look up at her. "Again."

Cain bowed forward, his chest heaving as he shot his sister a pleading look. She shook her head, holding Tora's head back still as she moved to stand directly behind him. She could tell the huge man was holding himself back purposefully; any control she had over him was pure illusion. However, the bulge forming in the front of his pants betrayed his more than willing participation in her revenge. Holding his neck arched with one hand still twisted in his hair, her fingers massaging the sensitive scalp beneath his high twisted bun, she released her other hand to trail over his chest. She flicked open the top buttons easily, feeling the hard muscles rippling beneath her fingers as she raked nails across his pecs.

Cain's breath hissed out between his teeth. "Kiss him, brother," she said, her voice low. She flicked Tora's nipple, drawing a stunted moan from him. "Or I will."

Her brother fell to his knees with a thump, his hands reaching out to pull Tora forward, away from her grip. She let him slide out from between her hands, her heart in her throat as she watched her brother's perfect lips slide over Tora's, his eyes shut tight. Tora braced himself on the ground to either side of Cain, his mouth firmly shut at first then slowly relaxing into her brother's kiss. His features softened, his mouth opened slightly, a moan drawn from the deepest parts of him. She saw his fingers clench spasmodically against the cold stone floor, then rise to touch her brother's sides as gentle as a whisper. Cain's eyes shot open and locked with Setsu's without breaking the kiss.

He seemed to find his answer somewhere in her flushed face, for his own hands rose and deftly finished her work, unbuttoning Tora's shirt completely and shoving it down. He left it partway down his upper arms, pinning them back, the action pulling Tora away from their kiss to rock back, steadying himself with his palms flat on the ground.

This time Cain leaned over him, his eyes full of bloodthirsty promise as he took in Tora's exposed skin before turning to his sister. He captured her gaze, locking his eyes with hers, pulling off layers of jacket and shirt as he bent forward achingly slowly. She saw Tora's muscles start to quiver in anticipation as Cain's face paused centimeters away from his chest. Finally, he freed her and turned to fully look at the man beneath him. "Kiss him," he murmured, as if weighing her words.

His arms slipped between Tora's, his fingers interlacing with the other man's behind Tora's back. He paused again for the briefest moment before closing the distance and sucking Tora's nipple into his mouth. A tight, desperate sound came from Tora as Cain bit down, then sucked again, abusing the sensitive skin until it bruised in a circle. Setsu's hand gravitated toward her brother, raking her fingers up and into his hair, one hand gripping each man tightly as she watched her brother shift to Tora's other nipple. Tora's eyes were closed, his back arched against Cain, his fingertips white where they pressed against the stone floor.

She felt a fire building inside her. She'd lain with her brother; watched his face transform as he'd claimed her. Never had she seen him with another. Never had she imagined him with a man. His lean, perfectly white muscles hovering inches above Tora's darker skin while his lips crushed against the tattoos richly decorating Tora's own muscles was unimaginably beautiful. It couldn't stop. Not before she was able to immerse herself in their art.

Cain must have heard her heart cry, for his mouth shifted, etching bruises and heat slowly down the length of Tora's chest.

"Beautiful," Setsu whispered, her hand leaving Tora's hair to trace lightly over the kiss marks. Tora hissed as her fingers flickered over his nipple. He was so sensitive. She wondered if her nii-san would be just as sensitive right now. Purposefully stroking Tora's nipple, she let her other hand wander under her brother's arched body to find his chest muscles. Her thumb discovered his hard bud first and flicked it experimentally. Cain's movements lower on Tora halted as his eyes searched for her. She flicked again, biting her tongue, aching for a response. There- his breath intake hitched. A thrumming started to sound deep inside her body. He bent again, hiding his flushed face from her to carve a kiss Tora's waistline. She twisted and tweaked, wanting something to solidify the ache inside her, craving more response from him.

Tora was gasping, his golden eyes already going hazy with need. His hand reached out, making her cry out sharply as he grasped her breast, his callused thumb finding her nipple through the taut fabric of her lacy corset top. Cain's hand shot out, twisting Tora's wrist and ripping his hand away with a murderous glare.

"Brother," Setsu said, her voice thick but still commanding. "I want it. You touch me too." Cain pulled away from Tora, turning to face her, but she shook her head. "Don't- stop-" His eyes flickered to Tora, then to her. She smiled, teasing Tora's nipple just then to draw a muffled moan from him. Cain growled, driven to action. His head dipped lower, his lips trailing over Tora's hips and hovering over the bulge in his pants. His hand reached up to join Tora's, caressing her other breast roughly, making her grit her teeth to seal her groans inside. She didn't want them to know how desperate she was, not yet. Cain bared his teeth, biting Tora lightly, making his jump and moan. His free hand ripped down the other man's zipper, shoving his pants down.

Tora skidded back away, pressing himself against the wall of bottles, his knees up. She could see his massive erection standing between his legs, the tip twitching while he stared at Cain. "Fuck off, man," he said in a dangerously quiet voice.

"She said to kiss you," he brother drawled, his eyes shifting from Tora to her swiftly. He slowly unzipped his own pants, revealing a growing wet spot on the front of his strained briefs. "And I'll be damned if I leave any part out." He kneeled again, his hands braced on Tora's knees. Tora kicked, but Cain deflected his strike. He ground his thumb hard into the joint of Tora's hip, making him blanch in pain, the momentary pause long enough for Cain to bend forward and suck his tip between his lips.

"She didn't—" his words came in gasps as he fought the sensations her brother's mouth was drawing from him. "Mean— God, fuck…"

Setsu leaned forward to touch his face, slowly drawing her nails down his jawline. The blend of agony and pleasure were truly beautiful on his predatory features.

"Don't pretend you know me better than my nii-san," she whispered in his ear, her voice dangerously low. Hooking one finger under her skirt, she pulled her panties down, shifting her hips to let them fall to the ground. She stepped over his body, her legs straddling him and her brother, the position a heady demonstration of her power. Spreading her legs this wide shifted her miniskirt up; all it took was a hitch over her ass and she was bare before them.

Her brother's hand immediately rose to caress her. His groan of possessive pleasure against Tora's shaft made the other man jerk, his hands fumbling for purchase.

"Kiss me," she said, her fingers reaching in to stroke the inside of his mouth, catching his tongue and tugging on it. His lips closed around her fingers, sucking desperately. She closed her eyes, rocking slightly. "Not there," she said, though his urgent sucking was sending electric waves through her body already. She pulled on his tongue slightly, drawing his head forward. "Here."

Tora nodded, and she let her hand slip from his mouth, curling around the back of his head. His tongue flicked down her length, tasting her, testing her. Her brother's hand clenched tight, his voice moaning against Tora in angry need. Tora sat up, bolder, and wrapped his hands around her thighs, spreading her lower lips with his thumbs. He glanced up at her, a fierce smile on his face, before burying his head in her petals. Shock jolted through her, forcing her head back as his lips sealed around her bud, his tongue twisting and pressing. She could feel her wetness on him and shifted her hips, grinding onto his face.

Cain growled, raking his teeth down Tora's length then sucking his tip over and over again, his movements lunging fast and desperate. Tora's mouth jerked against her, his moan of release sinking into her lower lips and vibrating her sensitive bud, making her gasp. Lips wet with the other man's juice left sticky prints on her ass as Cain immediately moved up to kiss her muscle hungrily. His heavy breathing rushed hot over her flesh. Her fingers kneaded Tora's shoulders as her hips started to grind against his face in pure need.

"Setsu." Cain gasped her name, his hands roaming over her skin like hot coals starting new, deeper fires everywhere he touched. "Setsu… let me in you."

She shuddered, moving to arch her hips, creating distance between her center and Tora's needy tongue. He growled, wrapping his large hands around her hips.

"Both," she said, her voice husky. "God, both. Now." She ground against Tora's mouth, crying out as he sucked on her clit. He hummed against her, his desire pouring out in wordless sound as her brother's shaft pressed against her entrance.

He pulled up on her hips, shifting her angle, drawing Tora after her. Slowly, he pushed inside her with a strangled groan of pleasure. Her knees went weak, threatening to drop her to the ground despite her grip on the shelf above Tora. Tora and Cain's hands intertwined around her hips as together they held her aloft. She was floating, weightless in their arms as one kissed her secret bud while the other slid in and out, filling her over and over again.

She started to shake, leaning her head on the cool wood, bottles shaking gently with their furious lovemaking. Her body trembled with pleasure as the two men worshipped her. Her brother's pounding grew harder, driving deeper into her, drawing forth unspeakable sounds from her. She was desperate to kiss him. "Cain…" she forced out, his name more a groan than a word. "Cain, I need…"

He understood without her needing to finish, reaching down and brushing his fingers on Tora's jaw, a weighted look passing between them. Tora shifted back, making her cry out as the wet heat of his mouth left her. She shouted in frustration as Cain pulled out too— too empty, all at once, she was so close; so in need. "No—" she said, reaching back, trying to capture his hips.

He was too far away. Setsu stood in anger, her legs weak but her spirit full of fire. She wasn't done. Cain was suddenly close, filling her vision, his lips sealing over hers exactly as she had craved. She moaned, twining her arms around him. Tora's heat rose behind her, his hands running up her bare back and snaking around to cup her breasts, rolling her nipples between his fingers. His mouth seared hot on the back of her neck, hungrily sucking her skin.

One lift and Cain wrapped Setsu's legs around his waist, driving deep inside her. She screamed with desire, trying to bounce herself, pushing him farther and farther in. Tora's lips traced their way down her back, making her feel like a goddess. He stood, and she felt his thick cock sliding along her back, erect and needy once more. Her small hand reached back, pressing it between her cheeks. Each thrust onto her brother shifted over and against Tora, his tip hot and swollen as it caressed her sensitive skin. Tora shifted to hold her waist, freeing one of Cain's hands to join hers, together trapping and caressing his erection. Her juices leaked out, over her brother and back over Tora, coating them with evidence of her pleasure. Tora was grunting, thrusting up against her, his member rushing in her slickness over and over her ass beneath their hands.

Cain's breathing was growing shallow. She kissed him, biting his lip, moans captured by his hungry mouth. His eyes met hers, waves of need and love crashing over her and making her clench around him. His depth hot inside; Tora's smooth heat stroking her; both lusting for her, needing her, obeying her— she let the wave of power crash over her and threw her head back in a visceral roar as she orgasmed. Cain gasped at her release, his head jerked down, hungrily sucking on her skin. She ground against him, his hip bone hard against her clit as he filled her completely, ripping a shout of victory from him when he came inside her.

Their arms shook as the two gently released her, slumping to sit in her brother's lap, Tora leaning against her back. The only sound was their heavy breathing and the gentle shush of Cain's hand rubbing her skin.

"Damn," Tora said, his voice hoarse. "If I didn't need whisky before, I sure as hell do now."