This is a commssioned chapter on my ko fi by "Crimson"
3k Words.
Hope you guys enjoy it. And if you guys also have any specific scene or kink you want me to add, you can always commission them.
*****
The early morning light filtered through the frosted glass window of the Yuuki household's second-floor hallway, casting a pale, hazy blue glow over the wood floorboards. The house was silent, suspended in that fragile, quiet hour before the chaos of alarms, breakfast cooking, and alien inventions began.
Yuuki Rito shuffled down the hallway, his eyes half-closed, his consciousness floating somewhere between a dream about exploring a jungle with Haruna and the waking world.
He was wearing a loose t-shirt and boxers, his hair a bird's nest of orange spikes. His body felt heavy, warm, and sluggish, dragging him forward on autopilot.
There was only one thing on his mind: The Toilet.
His bladder was full, painfully so. It was the kind of morning pressure that woke you up before your brain was ready to function. Alongside that urgency was the other morning inevitability: the morning wood.
Even in his sleep-addled state, Rito was vaguely aware of the massive tent pitching the front of his boxers. It was rock hard, throbbing with a slow, steady rhythm that matched his heartbeat. Since Mikan had joined the harem and he had fully embraced his honest body in the house, his morning wood had evolved from a nuisance to a towering monolith of stamina. It rubbed against the cotton fabric with every step, sensitive and demanding.
'Toilet... need toilet...' Rito thought, yawning so wide his jaw cracked.
He reached the end of the hall. The bathroom door was closed.
Usually, in the Yuuki household, a closed door meant "Occupied".
But at 5:30 AM? Everyone should be asleep. Lala usually slept sprawled out until the last possible second. And Mikan... Mikan usually woke up at 6:00 to start the bento boxes.
'Must have just closed it out of habit last night,' Rito reasoned groggily.
He didn't knock. He didn't call out. His brain was on powersaving mode, focused entirely on the relief waiting on the other side.
He reached out, grabbed the handle, and turned.
Click.
It was unlocked.
Rito slid the door open and stepped inside, already reaching for the waistband of his boxers to pull them down.
"Man, I really need to g—"
He froze.
The scene in front of him didn't register for a full second. His brain had expected an empty white room, a porcelain toilet, and solitude.
Instead, he saw Mikan.
She was sitting on the toilet.
She was wearing her cute, oversized sleep-shirt, a soft pink thing that usually hung down to her knees. But right now, the hem was hiked up, gathered in her lap. Her pajama shorts and white cotton panties were down around her ankles, creating a small pool of fabric on the tiled floor.
Her knees were slightly apart. Her skin was pale and creamy in the morning light. And right there, exposed between the hem of her shirt and her thighs, was the soft curve of her stomach, glowing faintly with the Fourth Golden Heart Seal.
She wasn't doing anything scandalous. She was just... peeing. She was staring blankly at the wall, clearly half-asleep herself, lost in the daze of morning routine.
Rito stood there, his hand frozen on his own waistband, his mouth hanging open.
The sound of the door sliding open seemed to snap Mikan out of her trance. She blinked, turning her head slowly.
Brown eyes met amber eyes.
Silence stretched, thick, heavy, and awkward.
Then, reality crashed into Rito.
'I just walked in on my little sister. On the toilet. While she's peeing.'
The old Rito would have screamed. He would have tripped backward, slammed his head on the doorframe, and knocked himself unconscious to escape the embarrassment.
But the honest Rito, the one who was currently sporting a raging erection that was now throbbing harder at the sight of her bare legs, didn't scream.
He flinched, his face turning a violent shade of crimson.
"A-Ah!" Rito squeaked, stumbling back a step. "M-Mikan! I'm sorry! The door... it wasn't locked! I didn't... I mean, I didn't check!"
He scrambled for the handle, his clumsiness making him fumble. "I'm leaving! I'm leaving right now! Sorry sorry sorry!"
He started to slide the door shut.
"Wait."
The word was quiet, but it stopped Rito dead in his tracks. It wasn't a scream of "Get out!" It wasn't a cry of embarrassment. It was a command.
Rito froze, leaving the door open a crack. He peered through the gap, his heart hammering against his ribs.
Mikan hadn't moved to cover herself. She hadn't pulled her shirt down. She was looking at him, her expression shifting from drowsy surprise to something sharper. Something possessive.
Her eyes dropped to Rito's crotch. She saw the massive tent in his boxers, straining against the fabric, twitching with the sudden spike of adrenaline and arousal.
A slow, sleepy, deredere smile spread across her face.
"Why are you running away, Rito?" Mikan asked, her voice husky with sleep. "We're husband and wife, aren't we?"
Rito swallowed hard, his hand trembling on the doorframe. "B-But... you're... you're doing your business! It's... it's rude to intrude!"
"Come in," Mikan said. She patted her thighs. "And close the door."
"Mikan!"
"Close it," she repeated, her voice dropping to a whisper that vibrated with the authority of the Exclusive Sister-Wife. "Unless you want to wake up Lala-san and explain why you're staring at me with a hard-on in the hallway."
Rito flinched. She had him there.
With a shaky breath, he stepped back inside the small, tiled room and slid the door shut behind him. The lock clicked with a finality that made his stomach flip.
The bathroom was intimate. It smelled of lavender air freshener and the warm, natural scent of Mikan's sleep-warm body. Being enclosed in such a small space with her, seeing her in such a vulnerable position... it was overloading Rito's senses.
He stood with his back to the door, trying to look anywhere but at her. He stared at the towel rack. He stared at the sink.
"Look at me, Rito," Mikan ordered softly.
Rito slowly, agonizingly, turned his head.
Mikan was watching him. Her cheeks were dusted pink, but she wasn't hiding. In fact, she seemed to be enjoying his flustered state.
"You have to go too, right?" Mikan asked, nodding at his erection. "I can tell. You're dancing."
"Y-Yeah," Rito admitted, crossing his legs slightly to relieve the pressure on his bladder. "I really... really need to go."
"Then wait," Mikan said. "Watch me finish."
Rito's eyes widened. "W-Watch?"
"Husbands and wives share everything," Mikan murmured, her eyes half-lidded. "You've seen me naked. You've been inside me. Why is this embarrassing?"
She shifted her hips slightly on the seat.
And then, the sound filled the room.
Tinkle... shhhhhh...
It was the sound of water hitting water. A steady, uninhibited stream.
Rito felt like his brain was melting. It was such a mundane sound, yet in this context, with Mikan looking him dead in the eye, her Golden Seal glowing faintly on her exposed stomach, it was incredibly, devastatingly erotic.
It was the sound of a barrier breaking. It was the sound of absolute comfort.
His body reacted violently. His erection, already painful, surged. It throbbed so hard it jerked his boxers down slightly. The pressure in his bladder mixed with the pressure in his groin, creating a confusing, heady cocktail of need.
'She's letting me watch...' Rito thought, his breath hitching. 'She's not embarassed at all. She's showing me... her most private moment.'
He watched. He couldn't help it. He watched the way her stomach relaxed. He watched the way her toes curled slightly against the bathmat. He watched the relief wash over her face.
The sound tapered off.
Drip. Drip.
Mikan let out a soft sigh. "Haaah... that's better."
She didn't reach for the toilet paper immediately. She sat there, exposed, looking at Rito's crotch.
"You're so hard," she whispered, her voice full of wonder. "Just from hearing me pee?"
Rito blushed so hard his ears burned. "I... I can't help it! It's... it's you, Mikan! Everything you do... seeing you like this... it makes me..."
"Horny?" Mikan supplied, a teasing glint in her eyes.
"Yes!" Rito blurted out, his honesty winning over his shame. "I'm horny! I want to touch you! Even here! Even now!"
Mikan giggled. It was a sweet, satisfied sound. She reached for the toilet paper, wiped herself quickly and efficiently, another flash of domestic intimacy that made Rito's heart race, and stood up.
She pulled her panties and shorts up, but she didn't pull her shirt down. She let it bunch around her waist, keeping the Golden Seal visible.
She flushed the toilet.
Whoosh.
She turned to Rito. She didn't wash her hands. She walked right up to him, pressing her body against his. She wrapped her arms around his neck, burying her face in his chest.
"I love you, Rito," she mumbled into his shirt. "You're such a pervert."
"You're the one who made me watch!" Rito protested weakly, his hands settling on her waist.
"And you liked it," Mikan countered, looking up at him. Her eyes were sparkling. "Now... do you want to relieve yourself? Or..."
She ground her hips against his erection. The friction sent a bolt of lightning straight to Rito's brain.
"...do you want to relieve this first?"
The question hung in the humid air of the bathroom.
Rito looked down at her. He was bursting. His bladder was screaming for release. But the feeling of Mikan's small, soft body pressing against his raging hard-on was overriding every survival instinct he had.
"Mikan..." Rito groaned, his hands tightening on her hips. "I need to pee... but if I take it out now... I don't think I can aim."
Mikan giggled again. She reached down, her hand sliding between their bodies. She found the waistband of his boxers.
"Let me see," she whispered.
She pulled the elastic down.
The 9-inch mini-king sprang free.
It was magnificent. Engorged with morning blood, heavy with the need to urinate, and rock-hard with lust. It slapped against Mikan's stomach with a wet thwack.
"Wow..." Mikan breathed, staring at it. Even after the nights they spent together, the sheer size of it in the morning light was always a shock. "It's really angry today."
She touched the tip. A clear bead of pre-cum mixed with the pressure of his bladder sealed the slit shut.
"You can't pee like this," Mikan decided, her voice sultry. "It's too hard. You'll make a mess."
She looked up at him, her eyes darkening with desire.
"We have to soften it up first. Or... use it."
"Use it?" Rito rasped. "Here? The toilet is..."
"The toilet is perfect," Mikan said.
She turned around. She pushed Rito backward until the back of his legs hit the closed toilet lid.
"Sit," she commanded.
Rito sat down on the plastic lid. The toilet was low, so his knees were bent high. His erection stood straight up, pointing at Mikan's chin like a flagpole.
Mikan stepped between his spread legs. She was facing him. She reached down and pulled her shorts and panties back down to her ankles. She kicked them off one foot so she could move her legs freely.
She was naked from the waist down again. Her pussy, still slightly damp from her morning release, was right at Rito's eye level.
"Mikan..." Rito breathed, the scent of her, musk, urine, and arousal, filling his nose. It was intoxicating. It was the smell of ownership.
"I want you inside me," Mikan whispered, placing her hands on his shoulders. "I want to start the day full."
She climbed onto his lap. She positioned herself over his erection. She rubbed her wet entrance against the broad, mushroom-shaped head.
Schlick. Schlick.
"Ahhh..." Mikan threw her head back, shivering. "It's so hot... so big..."
Rito gripped her hips, his thumbs pressing into her soft flesh. "Mikan... I'm really full... if I come... it's going to be intense."
"Good," she hissed. "Give it to me."
She sank down.
Squelch.
It was a tight fit. Morning wood was harder, less forgiving. Rito hissed through his teeth as she impaled herself on him, inch by inch. Her internal walls were hot and tight, clamping down on him with a suction that made his toes curl.
"Hngh!" Rito groaned, his head falling back against the water tank. "Mikan... you're... so tight..."
"You're too big..." Mikan gasped, sinking all the way down until her butt rested on his thighs.
They were fused together on the toilet seat. Mikan wrapped her legs around his waist, locking her ankles behind his back. She wrapped her arms around his neck, pressing her cheek against his.
"Move..." she whispered in his ear. "Fuck me, Rito. Right here."
Rito couldn't hold back. The position gave him incredible leverage. He grabbed her butt cheeks, lifting her slightly, then slamming her back down onto his cock.
Thwump.
"Ah!" Mikan cried out, the sound bouncing off the tiled walls.
Rito began to bounce her. Up and down. Grinding. The friction was incredible. Every thrust hit her deepest spot, and every squeeze of her walls massaged his prostate.
"Yes... yes... Rito!" Mikan moaned, kissing his neck, biting his shoulder. "I love you... I love being your wife... fill me up... make me pregnant in the bathroom!"
Rito was losing his mind. The taboo of the location, the need to pee, the intense pleasure of Mikan riding him... it was a sensory overload.
"Mikan... I can't... I can't last..." Rito panted, his hips bucking upward to meet her thrusts.
"Don't last!" Mikan screamed, her nails digging into his back. "Let it go! Give me your morning milk!"
She ground down hard, twisting her hips. Her Golden Heart Seal glowed brightly, sandwiched between their bodies, pulsing with the rhythm of their sex.
Rito roared.
"MIKAN!"
He slammed his hips up one last time, burying himself to the hilt, and exploded.
SPLURT.
It was a violent release. Waves of thick, hot seed fired into her womb, mixing with the pressure of his bladder to create an orgasm that felt like it was draining his soul.
"AAAAHHHH!" Mikan arched her back, her entire body convulsing as she took every drop.
She clamped down on him, milking him dry, her internal muscles spasming in a chain reaction orgasm that left her boneless.
They stayed like that for a long time. Rito panting, his head resting on her shoulder. Mikan limp in his arms, twitching occasionally.
The bathroom was silent again, except for their heavy breathing and the faint drip-drip of the faucet.
…
Slowly, the haze of pleasure lifted.
Rito blinked, coming back to reality. He was sitting on the toilet lid. Mikan was naked on his lap. And...
"I still really need to pee," Rito groaned, the pressure returning with a vengeance now that the orgasm had passed.
Mikan giggled weakly against his neck. "Okay... okay. Let me up."
She kissed his cheek and slowly lifted herself off him.
Schlop.
A thick string of white connected them for a moment before breaking. Mikan stood up, her legs wobbling. Semen dripped down her inner thighs, mixing with her natural fluids. She looked messy, ruined, and incredibly happy.
"Go ahead," Mikan said, stepping back and gesturing to the toilet. "I'll wait."
Rito stood up. His erection had softened to a semi-hard state, manageable now. He lifted the lid and the seat.
He stood there, hesitating. Mikan was watching him. Again.
"Don't be shy," Mikan teased, leaning against the sink. "I let you watch."
Rito sighed, a small smile touching his lips. "You're enjoying this too much."
"Maybe."
Rito relaxed. He let go.
Pshhhhhhhh.
The sound of his stream hitting the water filled the room. It was long, steady, and incredibly relieving. Rito let out a long groan of pure, non-sexual satisfaction. "Oh god... that feels good..."
Mikan watched him, her eyes tracing the line of his back, the way his shoulders slumped in relief. She loved this. She loved the domesticity of it. The raw, unfiltered reality of living together as husband and wife.
When he was finally done, Rito flushed the toilet and turned around.
"Better?" Mikan asked.
"Much better," Rito said, washing his hands at the sink.
He looked at Mikan. She was still messy. Her thighs were sticky. And his own "King" was currently softening, but covered in fluids.
"We should probably shower," Rito said. "Before Lala wakes up."
"Mmm," Mikan hummed. She walked over to him. She looked down at his semi-soft cock.
"Not yet," she whispered.
She dropped to her knees on the bathmat.
"Mikan?"
"It's messy," Mikan said, looking up at him with those big, brown, devoted eyes. "A good wife cleans up after her husband."
She reached out and held his shaft. It was warm, heavy, and smelled of sex.
"Mikan, you don't have to—"
"I want to," she interrupted. "I want to taste you. I want to make sure you're completely empty."
She opened her mouth and took him in.
It wasn't the frantic, hungry sucking. It was slow, thorough, and caring.
She licked the head clean, swirling her tongue around the rim to catch any lingering drops of urine or semen. She sucked gently, her cheeks hollowing, cleaning him with a devotion that made Rito's heart ache.
Slurp. Lick. Pop.
She hummed, her eyes closing as she savored the taste of him. She cleaned the shaft, licking up the stray fluids. She cleaned his balls, lifting them gently to kiss the underside.
It was the most intimate thing she had ever done. It wasn't about pleasure, though it felt amazing. It was about care. It was about accepting every part of him, even the messy parts.
Rito ran his fingers through her hair, looking down at her with overwhelming love.
"Mikan..." he whispered. "You really are the best."
Mikan pulled back, her lips glistening. She smiled up at him.
"I know," she said.
She stood up and kissed him on the lips, sharing his own taste with him.
"Now," she said, pulling him toward the door. "Let's go take that shower. I have to make breakfast, or Lala-san will try to cook again."
Rito laughed, wrapping his arm around her waist.
"Yeah. Let's go."
They walked out of the bathroom together, leaving the morning sun to illuminate the empty, quiet room that had just witnessed the sealing of their morning bond.
*****
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