Rito x Mikan Full Lemon
P.S - 2.1k Words
*****
The door to Rito's room closed with a quiet click, a sound that felt more like the sealing of a vault than the simple closing of a wooden door.
Mikan stood there, her hands gripping the waistband of her pajama shorts. Her face was flushed from her outburst downstairs, but her eyes, usually so sharp and critical, were soft, vulnerable, yet filled with a desperate, passionate need.
Rito walked toward her. He didn't speak. He simply placed his hands on her shoulders, his thumbs tracing the line of her collarbone.
"You're not going to be able to leave." Rito whispered, his voice low and serious. "Not after tonight. There's no coming back from this, Mikan."
"I know," Mikan whispered back, her voice shaking. "I don't want to go back. I want the Seal, Rito. I want to be yours forever. I'm tired of being left out."
Rito nodded slowly, accepting the gravity of her demand. This was not a quickie. This was a vow.
"Then let's do this properly."
He kissed her. It was a long, slow, devastating kiss that tasted of solemn commitment and underlying desperation. As their lips separated, he moved to her clothes.
He knelt before her, his large hands reaching for the hem of her pajama shirt. He pulled the fabric up, slowly, deliberately, peeling the cloth away from her skin.
Mikan stood still, watching him. Her breasts, small and perfect, rose and fell rapidly as the shirt was removed, exposing her torso. Rito's eyes swept over her, the delicate curve of her ribcage, the soft, pale skin of her stomach.
'You're really beautiful.' Rito thought, reaching up to kiss the base of her throat.
Next came his clothes. Mikan watched as he shed his t-shirt, her eyes fixed on the sight. His sweat-slicked 5-pack was starkly defined under the lamp light, the muscles shifting as he moved. He unclipped his shorts and let them drop, along with his boxers.
The full weight of his erection sprang free. It was heavy, thick, and fully extended, a 9-inch mass of pulsing heat and thick, the curved head with prominent veins that demanded immediate attention.
Mikan gasped, not in fear, but in awe. She remembered the outline from the bath, but seeing it unleashed on her face was overwhelming. Her gaze settled, hypnotized, on the size and the sheer, raw masculinity of him.
"Onii-chan..." she breathed, her cheeks flushing hot.
Rito, naked and hard, gently took her hands and guided them to her remaining clothes: the short, frilly sleep shorts she wore. He pulled them down slowly, along with her panties, until she stood completely bare before him.
He lifted her and carried her to the futon, laying her down softly against the clean sheets.
Rito positioned himself between her thighs. He didn't rush the main act. This was about devotion. This was about breaking any psychological barrier that was left.
He looked at her intimate spot, smooth, pale, and glistening with arousal. He inhaled deeply, pulling the scent of her clean skin and rising musk into his lungs.
"I really like your smell, Mikan." he murmured, his voice husky.
He began with slow, deliberate kisses across her inner thighs, moving higher inch by inch. Mikan's legs trembled, her hands reaching out to clutch the sheets.
"R-Rito... please..."
He reached her core. He used his tongue, tasting her, working the sensitive folds, drawing a long, low moan from her throat.
Schlick... slurp...
He worked her relentlessly, using the skilled, circular technique he had absorbed from his knowledge, driving her higher and higher. Mikan's hips bucked, her protests dissolving into pleas for more.
"I love this part of you," Rito whispered against her wet skin. "I love how soft you are. I love how you tremble for me."
He paused, pulling back just long enough to move to her side. He lifted her legs over his shoulders, exposing her completely.
He leaned in, his face centimeters from the tight, forbidden rosebud. Mikan gasped, her hands flying to cover herself.
"R-Rito, wait! Not that... we can't always do that!" she whispered, her voice laced with a mixture of shame and intense anticipation.
Rito gently lowered her hands away from her body. His face was flushing a deep scarlet, showing his own awareness of the lines they were crossing, but his eyes were firm with loving determination.
"I promised to love every part of you, Mikan," Rito whispered. "Don't hide your pleasure from me."
He lowered his head and pressed his mouth, warm and wet, against her forbidden spot.
Slurp.
It was a long, deep, deliberate lick right across her anus.
"HYAAA!" Mikan cried out, her back arching off the mattress, tears of pleasure and taboo shame instantly springing to her eyes.
He didn't stop. He worked the sensitive rim, swirling his tongue around the tight muscle, diving in and out of her more sensitive spot. The sheer psychological weight of her brother worshipping her most private, "dirty" spot amplified the pleasure tenfold.
Lick... schlorp...
"R-Rito! It's too much! I can't think!" Mikan wailed, her whole body thrashing on the bed, pushing back against his face.
He pulled back, his chin glistening, and moved his tongue to her clitoris, giving her a brief, sweet respite before moving back to the rim. He alternated between her front and back, creating a dual assault that overloaded her system.
"You taste so good," Rito groaned, his voice deep with satisfaction. "I love you, Mikan. I love all of you."
Her resistance broke. She stopped fighting. She only focused on the pure, raw sensation that was ripping through her.
Rito drove her to the absolute edge.
"I'm... I'm going to cum!" Mikan screamed, her body seizing.
Rito stopped his mouth. He pulled his head away, breathing hard, and moved between her legs.
"Not yet," he panted. "Not until I'm inside you. Look at me, Mikan."
He knelt between her spread thighs, his cock hard and heavy, poised at her entrance.
…
Mikan lay trembling, her body slick and overheated from Rito's oral attack. Her eyes were glazed, her lips swollen, and her breath came in shallow, frantic gasps.
Rito knelt between her legs, his own chest heaving. He was fully erect, his 9-inch length thick and pulsating, glistening with her juices and ready to claim its reward.
He looked down at her, at her small, beautiful, trembling body, her smooth thighs spread wide, and the slick, swollen entrance waiting for him.
"Mikan," Rito whispered, his voice rough with honesty and affection. "I promised I wouldn't stop. I won't let you be lonely ever again."
Mikan reached out, her hand finding his cheek. Her expression was pure, soft, and completely deredere.
"I know, Rito," she sighed, her voice melting. "I trust you. I'm so happy... I want to be yours now. Please... take me, Onii-chan."
That taboo word, spoken as a plea for intimacy, ripped away the last of Rito's self-control.
He leaned forward, pulling her hips toward him. He positioned the massive, curved head of his erection directly against her entrance.
"Look at me," Rito commanded gently, holding her face between his strong hands. "No going back now, Mikan. This is forever."
He pushed.
Shhhlick.
The head of his cock breached her, stretching her tight, untouched walls to their limit. Haruna had been a struggle, but Mikan was smaller, tighter, and the resistance was agonizingly fierce.
"Nngh—Ah!" Mikan cried out sharply, her eyes flying open in shock.
Rito froze instantly. "Pain?"
"Y-Yes... s-so tight... it hurts!" she whimpered, tears instantly springing to her eyes.
Rito kissed her forehead, soothing her. "I know, Mikan. I know. But you're doing so well. Don't fight it. I'm right here."
He pushed gently, slowly, conquering the resistance of her hymen.
Squelch... pop...
The sound was intimate, final. Rito groaned, pushing the rest of his enormous length inside her, burying himself to the hilt in one deep, determined motion.
THUMPH!
His pelvis slammed against hers. He filled her completely, stretching her core wide open.
Mikan screamed, a raw, sharp sound that quickly dissolved into a choked sob. She bucked against the pain, her back arching off the mattress.
"So full... Rito... I'm going to tear...!"
"No, you won't," Rito growled, his voice deep with possessive control. He pulled her legs up, draping them over his shoulders, locking her body in place. "You're mine now, Mikan. I'm not stopping."
He waited a long moment, allowing the initial pain to subside and the pleasure to take hold. He kissed her deeply, pushing his tongue into her mouth to mirror the invasion below.
When he finally began to move, it was slow, deep, and methodical.
Schlick... squelch... thwap...
The sensation was earth-shattering. Mikan's walls, once agonizingly tight, were now gripping him like a velvet vise. He could feel the stretch, the heat, and the sudden, overwhelming onset of pleasure that came with her body's surrender.
"Onii-chan...!" Mikan moaned, her voice hoarse. "It's... so deep... I can feel every vein..."
Rito pulled out until only the head remained, then slammed back in with a powerful thrust.
THWAP-SQUELCH!
He found her sensitive spot, the one that made her eyes roll back in her head, and hammered it mercilessly.
Mikan began to tremble, her hips bucking, trying to match his insane rhythm. The pain was gone, replaced by an insatiable, addictive pleasure. She was lost in the heat, the sound, and the final reality of being completely claimed by her brother.
"I can't take this... Rito... I need more... I need to be full!" she begged, tears of pleasure streaming down her temples. "Don't stop, Onii-chan! Don't you dare stop now!"
Rito hammered into Mikan, his focus narrowed to the heat and the agonizing tightness surrounding his penis. He was deep inside her vagina, driving forward with a stamina born of necessity and overwhelming desire. Mikan had completely surrendered to the onslaught, her hips rising violently to meet his every thrust.
"Onii-chan...!" Mikan screamed, her voice hoarse. "I'm going to break! I can't take it! I need the mark! I need you!"
Rito felt the final warning shot, the hot, electric jolt that signalled the point of no return. He grabbed her hips, his hands digging into her flesh, locking her in place.
He looked down at her face: swollen lips, sweat-slicked hair, and eyes filled with nothing but desperate, consuming pleasure.
"You're mine, Mikan." Rito gritted out, his voice thick with the finality of the act. "Forever."
He slammed home, burying his cock to the root.
DO-PYU!
He exploded.
The release was monstrous, driven by the intensity of the taboo and the sheer physical effort of their marathon. Thick, hot streams of semen erupted from his penis, flooding her womb.
SPLURT! SPLURT! SPLURT!
The force and quantity were staggering, instantly filling her completely. Mikan's eyes rolled back. Her body seized in his arms, her internal walls clamping down on his shaft in a violent, spasming grip.
"AHHHH! SO HOT! SO FULL!" Mikan shrieked, her voice shattering with ecstasy as she felt the liquid heat sink into her deepest parts.
As the torrent of his seed filled her, a soft, golden light suddenly bloomed from beneath their joined bodies.
Rito pulled back slightly, looking down.
On Mikan's lower abdomen, just above their connection, the Golden Heart Seal #4 materialized. It glowed fiercely, pulsing with a warm, steady light that synced with Mikan's heart, visibly cementing the permanent, magical bond.
Run's seal, Haruna's seal, Lala's seal, they all felt like distant memories now. This was the ultimate victory. This was the taboo shattered.
Mikan saw the mark. She saw the Seal burning into her skin, and all the pain, the loneliness, and the fear dissolved into pure, triumphant joy.
She began to sob, not from pain, but from relief.
"It's... it's here," Mikan wept, tears streaming down her temples. "I'm... I'm really yours now, Rito! We'll be together forever! I'm marked!"
Rito, spent and trembling, collapsed onto her, burying his face in the crook of her neck. He held his sister, his fourth wife, feeling the magic of the Seal radiating beneath him. He had completed the forbidden step.
*****
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