Rito and Sachie's Complete First Time. (2.8k Words)
Enjoy the chapter.
*****
Tuesday afternoon arrived with a nervous, electric energy that seemed to vibrate through the floorboards of the Yuuki household.
Rito paced back and forth in his bedroom.
He had spent the last hour cleaning, vacuuming the tatami, organizing his manga shelf, and ensuring there wasn't a single speck of dust on the bed.
He stopped in front of the mirror, adjusting his collar for the tenth time. He was wearing casual clothes, a clean t-shirt and shorts, but he felt like he was dressed for a wedding. Or a duel.
'I'm really doing this with Mikan's friend.' Rito thought, his heart thumping a chaotic rhythm against his ribs. 'Yesterday was... intense. But today is different. Today isn't a test, it's a commitment.'
He looked at his reflection. His face was flushed, his eyes wide with lingering disbelief at his own life.
'Sachie-chan is coming over. And Mikan... Mikan actually set it up.'
Downstairs, the doorbell rang.
Ding-Dong.
Rito froze. He heard Mikan's footsteps in the hallway, steady and calm. He heard the front door slide open.
"Welcome, Sachie," Mikan's voice drifted up the stairs. It wasn't the angry voice from the sleepover, nor the terrifying "Head Wife" voice from the previous. It was soft, welcoming, like a sister greeting a new family member.
"Hi, Mikan-chan!" Sachie's voice was bright, but there was a tremor in it. "I... I'm here for the appointment."
"Go on up." Mikan said. "He's waiting. I'll make sure no one disturbs you until dinner."
"T-Thank you!"
Light footsteps thundered up the stairs. Rito took a deep breath, trying to steady his shaking hands.
Knock. Knock.
"Onii-san? It's me."
"C-Come in." Rito answered, his voice cracking slightly.
The door slid open.
Sachie stood there.
She wasn't wearing a uniform, Sainan First Elementary didn't have them. Instead, she was wearing a cute, slightly frilly pink blouse and a denim skirt that stopped just above her knees. She had clearly tried to dress up to look a bit more "mature". Her shoulder-length brown hair was brushed until it shone, a small, neat braid tucked behind her ear with a decorative clip.
She stepped inside and closed the door behind her. She dropped her backpack by the desk.
"I'm here." Sachie announced, turning to face him. She puffed out her chest, trying to look brave.
Rito looked at her. One part of him wanted to offer her juice and ask about school. But the other one, the one whose body was already reacting to her presence, saw a girl walking into his territory to claim her place.
"Hey, Sachie-chan." Rito said softly. He rubbed the back of his neck, a sheepish smile touching his lips. "You... you came early."
"I couldn't wait." Sachie admitted. She fidgeted with the hem of her skirt. "I... I prepared for it."
She looked up at him through her lashes.
"I wore my best underwear. It's not the childish bear print ones. It's... it's lace. Mikan-chan helped me choose it."
Rito's face exploded into heat. The image of Sachie in lace underwear hit his brain like a sledgehammer.
"O-Oh," Rito stammered, his gaze dropping to her skirt unconsciously before snapping back up. "That's... that's very grown-up of you."
"I want to be a grown-up for you." Sachie said, taking a step closer. "After all, I want to be a wife."
She was standing in the middle of his room, radiating that familiar, bold energy she always had. But Rito noticed something else. Her hands were shaking. Just a little bit.
She wasn't just the "perverted friend". She was a girl who was scared, excited, and putting her heart on the line.
Rito sat down on the edge of his bed. He patted the spot next to him.
"Come here, Sachie-chan."
Sachie blinked, then walked over and sat down. The mattress dipped under her light weight. She sat close enough that their knees touched.
Rito turned to her. He needed to ask. Before the clothes came off, before anything related to the Seal appeared... he needed to know.
"Sachie-chan," Rito started, his voice serious. "Why me?"
Sachie looked surprised. "Huh?"
"I mean..." Rito scratched his cheek, looking away shyly. "We only really met properly at the sleepover a few months ago. Before that, you just knew me as Mikan's big brother. I know we had... fun... during that time. And I know you liked… my capabilites. But... is that it?"
He looked back at her, his amber eyes honest and searching.
"Because if you become my wife... it's forever. It's not just about the sex. It's about... being with me. Even when I'm clumsy, even when aliens attack, and even when I'm just boring old Yuuki Rito."
Sachie stared at him.
The "bold pervert" mask slipped and her shoulders slumped. She looked down at her hands, twisting her fingers together.
"It's not just the erotic-stuff," Sachie whispered. "Though... I really, really like that."
She took a deep breath.
"For years, Mikan-chan talked about you," Sachie confessed quietly. "At school, during lunch... she would complain about you being clumsy, or messy, or oblivious. But... she always had this look in her eyes. She looked so happy when she talked about you. She looked... like she really felt the safest when talking about you."
She glanced up at him.
"I was jealous. Not just of her, but also of you. I wondered what kind of person could make Mikan-chan, who is so cool and independent, look like that."
"And then..." Sachie's cheeks turned pinker. "Then came the sleepover."
"That time... it was chaos," she continued, a small smile tugging at her lips. "Lala-san was using her inventions, things were flying everywhere, and Mikan-chan was yelling. But you... you didn't get angry. You were clumsy, sure, and you blushed a lot... but you were so warm."
She leaned closer, her hand resting on his knee.
"When we touched you... you didn't push us away. You held us. Even when it was weird, even when it was perverted... you made us feel safe. Just like you make Mikan-chan feel safe."
Tears pricked the corners of Sachie's eyes.
"I want that," she whispered. "I don't want to just hear Mikan-chan's stories anymore. I also want to be part of the story."
She looked at him, her expression raw and open.
"That's why I acted on my emotions like a pervert," she confessed, her face flushing darker. "Because... because when I touched you... when I made jokes about your body... you looked at me. You noticed me. It was the only way I knew how to get close to the guy Mikan-chan loves so much."
Rito felt his chest tighten. A warm, overwhelming affection flooded his heart.
He had thought she was just curious. He had even thought that she just wanted to play. But she had been watching him through Mikan's eyes, longing for that same connection.
"Sachie-chan..." Rito whispered.
"I love the erotic-stuff," Sachie admitted. "I love how big you are. I love how it feels in my mouth. But... I want the Seal because I want to belong to the person who makes this house feel so warm."
Rito didn't say anything. He couldn't.
He reached out and pulled her into a hug.
"O-Onii-san?" Sachie squeaked as she was enveloped in his arms.
Rito held her tight, pressing her face into his chest. He smelled her hair, sweet strawberry shampoo, and felt the rapid thumping of her heart against his ribs.
"I'm sorry," Rito said into her hair. "I'm sorry I made you feel like you had to act like that just to get my attention."
He pulled back slightly, cupping her face in his hands. He looked into her eyes.
His body reacted instantly. The scent of her, the warmth of her small body, the purity of her confession... it ignited a fire in his gut that was hotter than lust. It was possessiveness. It was love.
"I want you, Sachie-chan," Rito said, his voice dropping to that husky, honest register. "Not just because you're cute. Not just because you're bold. But because you're you."
He thumbed her cheek.
"I want to give you the Seal. I want to make you mine."
Sachie's breath hitched. Her eyes shined with a joy so bright it was almost blinding.
"Onii-san..." she whispered.
She threw her arms around his neck, tackling him back onto the bed.
"Make me yours!" she cried out, kissing his cheek, his jaw, his neck. "Please! Put it in! Give me the Seal! I want to be your wife right now!"
Rito laughed, a breathless, happy sound, as he fell back onto the mattress with her on top of him.
"Okay," Rito promised, his hands settling on her waist. "Okay. Let's make it official."
…
The afternoon sun filtered through the curtains, casting the room in a soft, amber haze. The air conditioner hummed, but it did little to cool the heat rising between the two figures on the bed.
Rito sat up, his heart pounding in his ears. Sachie sat next to him, her face flushed, her eyes sparkling with anticipation.
"Okay," Rito breathed, his hands trembling slightly as they hovered near the hem of her pink blouse. "I'm asking for the last time. Are you... really sure?"
Sachie nodded, her expression fierce. "I'm sure. I want to be a grown-up for you, onii-san. Take it off."
Rito reached out. His fingers brushed against the buttons of her blouse. He undid them one by one, slowly, reverently. He wasn't stripping a toy; he was unwrapping a gift.
He parted the fabric and slid the blouse off her shoulders.
Sachie shivered, but she sat up straighter, puffing out her chest proudly.
Underneath, she was wearing the "mature" underwear she had bragged about. It was a matching set of pale blue lace, a little too big for her developing frame, perhaps, but chosen with such obvious care that it made Rito's chest ache with affection.
"It's... beautiful," Rito said honestly, his voice husky. "You look really cute, Sachie."
Sachie beamed, her confidence skyrocketing. "Right? Mikan-chan said blue suits me."
She reached out and tugged at the hem of Rito's t-shirt. "Now you. I want to see your body too."
Rito blushed, but he didn't hesitate. He pulled his shirt over his head and tossed it aside. Then, he stood up to remove his shorts.
As the fabric fell away, the 9-inch mini-king sprang free.
It was fully erect, heavy and imposing, the thick vein pulsing along its length. It stood at attention, testifying to exactly how much Rito wanted her.
Sachie gasped, her eyes widening behind her bangs. Even though she had just seen it yesterday during the test, seeing it now, knowing it was specifically for her, was different.
"It's... happy," Sachie whispered, reaching out to touch the flared head with a trembling finger. "It's happy to see me."
"Yeah," Rito admitted, his face burning but his eyes locked on hers. "I'm happy, Sachie."
He gently pushed her back onto the pillows. The fresh sheets smelled of Mikan's fabric softener, grounding him.
"I'm going to make you feel good," Rito promised. "It will not just be 'research'. It will be love."
He leaned down and kissed her. It wasn't the frantic, messy kissing. It was slow and deep. His tongue swept into her mouth, tasting the lingering sweetness of the juice she had earlier.
His hands roamed her body, exploring the curves that were softer and smaller than Lala's or Haruna's, but perfect in their own way. He kissed her neck, her collarbone, the small swell of her chest, exploring her skin until she was writhing and whimpering his name.
"Rito... Onii-san... please..." Sachie panted, her legs spreading instinctively. "I want it... I want to feel full..."
Rito moved between her legs. He looked down at the junction of her thighs. She was wet, soaking wet, actually, her excitement making her ready despite her size.
"It's going to hurt," Rito warned, his voice strained with the effort of holding back. "I'm... big. I don't want to hurt you."
"Make it fit," Sachie challenged him, wrapping her legs around his waist. She looked up at him, her eyes swimming with trust. "I want to feel every inch of it. I want to be stuffed with you."
Rito groaned. That kind of honesty was his weakness.
He lined himself up. The broad, mushroom-shaped head of his cock pressed against her entrance.
Shluck.
He pushed just the tip.
Sachie's breath hitched, her back arching off the mattress. "Haaah...!"
"You okay?" Rito froze.
"It's... big..." Sachie gasped, tears pricking her eyes, but she was smiling. A wild, ecstatic smile. "Keep going. Fill me up."
Rito pushed again.
Inch. By. Inch.
It was a slow conquest. His thick shaft stretched her, filling the small space completely. Sachie clung to his shoulders, her nails digging into his skin, her small body adjusting to the invasion of the King.
Squelch.
He sank to the hilt.
"Oh my god..." Sachie choked out, her head falling back.
Her stomach, flat and pale, distended visibly. The sheer mass of Rito inside her created a small, distinct curve just below her navel.
"Look," Rito whispered, leaning down to kiss the sweat from her forehead. "I'm all the way inside."
Sachie looked down. She saw where they were joined. She saw the bump on her tummy.
"I'm... I'm full of onii-san..." she whimpered, the realization sending a jolt of pleasure through her that made her clamp down on him.
Rito nearly lost it right there. Her internal muscles were tight, hot, and milking him with every tiny twitch.
"Sachie..."
He began to move.
It wasn't a fast pounding. It was a slow, rhythmic grinding. He pulled almost all the way out, then drove back in, deep and heavy, hitting the deepest part of her.
Thwump. Thwump.
"Yes! Yes!" Sachie cried out, her voice ringing in the quiet room. "That spot! Hit it! Make me yours!"
"I am," Rito gritted out, sweat dripping from his nose onto her chest. "You're mine."
"Say it again!"
"You're mine, Sachie!"
The words broke the dam.
Rito felt the pressure build, the stamina surging for the finale. He picked up the pace, his hips blurring.
Thwap-Thwap-Thwap!
Sachie was sobbing with pleasure, her legs locked around him, her body fused with his. "Onii-san! I love you! Give it to me! Give me the Seal!"
"SACHIE!"
Rito slammed home one last time, burying himself as deep as physics allowed.
SPLURT.
The release was torrential.
Thick, hot waves of seed flooded into her, filling her womb, expanding her even further.
"AAAAHHHHH!" Sachie screamed, arching her back so hard her head touched the mattress.
And then, it happened.
On her lower abdomen, right where Rito was filling her, a light ignited.
It started as a spark, then bloomed into a dazzling radiance. The Fifth Golden Heart Seal etched itself onto her skin. It was a perfect golden heart, but inside, the pattern was sharp and energetic, like a sunburst or a firework frozen in gold.
The light pulsed in time with Rito's finishing throbs, sealing the contract with magic and love.
Rito collapsed forward, holding her tight, breathing raggedly into her neck.
Sachie lay there, twitching, completely overwhelmed. Her eyes were rolled back slightly, a blissful, mindless expression on her face.
Minutes passed. The only sound was the humming of the air conditioner and their synchronized heartbeats.
Finally, Rito rolled off, pulling her into his side.
Sachie blinked, coming back to reality. She immediately looked down at her stomach.
It was there.
The Golden Seal. Glowing, warm, and permanent.
"I... I did it," Sachie whispered, tracing the mark with a trembling finger. "I got it."
She looked up at Rito, her face messy with tears and sweat, her hair sticking to her cheeks. She looked absolutely radiant.
"I'm a wife," she declared, her voice raspy.
Rito smiled, brushing the hair from her face. "Yeah. You are. Welcome to the family, Sachie."
Sachie giggled. She reached for her backpack on the floor, fumbling for her phone.
"What are you doing?" Rito asked sleepily.
"Proof," Sachie said.
Click.
She took a selfie of her stomach, the glowing seal clearly visible against her skin, with Rito's sleeping form blurry in the background.
"Mikan-chan said I can't show anyone," Sachie murmured, saving the photo to a hidden folder. "But Mami needs to know."
She typed a quick message:
To: Mami-chan
Message: I did it! It fits and it's amazing! Good luck tomorrow.
She hit send, then snuggled back into Rito's chest, closing her eyes.
"Five more minutes," she mumbled, mimicking Mikan. "Let me enjoy being a wife for five more minutes."
Rito kissed the top of her head, pulling the blanket over them both.
"Take all the time you need."
*****
A little support goes a long way! If you'd like to help me keep creating, you can do so at
https://ko fi.com/rroy28 (put a "-" between "ko" and "fi")
Support me on my patr eon and gain early access to my creations.
https://www.pat reon.com/RroY_r18 (remove the space)
You can access all the advanced chapters of this book and even make request for addition of some specific scenes.
Also, I have added Chapter-wise Uncensored NSFW Illustrations, available only in Patr eon.