"Why is it me again..."
Night had fallen over the village. Inside the home of Keine Kamishirasawa, Kars stared gloomily at the homework spread before him. His gaze flickered toward his teacher, who, under the light of the full moon, had transformed into her Hakutaku form.
He had been dragged here for another "supplementary lesson." He didn't understand why this kept happening to him, especially since the Hakutaku version of Keine looked at him with a strange intensity, constantly stroking his face and stomach.
"You have to work hard, Kars! If you finish the assignment Teacher gave you, there will be a reward."
Kars felt a heavy pressure on his head; Keine was leaning on him just like last time. The mental strain of the work combined with her physical presence made it impossible to focus. Eventually, Kars just face-planted onto the table. To hell with homework!
"Oh? Are we having trouble?" Keine asked, pulling him back up.
"Teacher, can't you let me go? Do I really have to do this?" Kars tried to negotiate. "I have zero motivation to learn this stuff..."
"No motivation?" Keine tapped her chin thoughtfully. "So, if you had motivation, you could finish all this work?"
"Huh? As if that would ever happen." The idea of being excited about homework was absurd to him.
"Teacher remembers you like this, don't you?" Keine cradled her breasts with a smile. "If you finish your work, Teacher will let you touch them."
"No way!" Kars refused. He could just go home to Patchouli for that. Why suffer through math for it?
"Are you sure?" Keine's smile widened. Before Kars could react, she pulled his head into her cleavage. As his face was buried in her soft warmth, she whispered, "Feels good, doesn't it? If you finish everything, I'll give you an even bigger reward. I'll teach you some... unexpected knowledge. Something I know you'll love."
Kars looked at her, dazed and confused.
"Actually, how about a little advance on that reward? To help build up your drive."
Keine laid Kars back on the table. Under his wide-eyed gaze, she pulled down his pants.
"Hehe... such a cute little thing. Now, Teacher is going to make you feel very good."
She stared at his tool with a predatory grin and flicked her tongue against it. A strange, electric sensation shot through Kars, making him shiver. He didn't fully understand what was happening, but Keine was right—it felt incredible.
Keine watched his expression with satisfaction. She continued to lick and swirl her tongue until his meat began to swell and stiffen before her eyes. Finally, she took the whole thing into her mouth and began to suck.
"Teacher... this..."
Just as Kars was losing himself in the sensation, she stopped.
"There. That's enough for now. Do you have motivation now, Kars? If you finish your work, I'll keep going."
Kars looked desperate, his face flushed. He had just said he wouldn't be motivated, and now he was dying for more.
"Don't be shy," Keine whispered in his ear. "As long as you study, anything is allowed. If you start now, I'll use my mouth on you while you work."
The offer made Kars's breath hitch. He sat back in the chair and tried to focus on the paper, but it was nearly impossible with Keine already underneath the table, taking his shaft back into her mouth.
"You can't stop, Kars. If the pen stops moving, Teacher stops sucking."
"But... it's hard to focus like this!" Kars complained.
"I suppose you're right. How about this: for every problem you solve, I give you ten seconds of oral. If you finish the whole page, I'll suck you until you're satisfied."
Kars nodded eagerly and began writing furiously. Keine sat beside him, stroking his meat gently to keep him stimulated without fully distracting him. After a while, Kars suddenly gasped. A white liquid erupted from his tip, coating Keine's hand.
"Oh my, did that feel too good?" Keine sniffed the fluid on her hand and licked it off her palm, then sucked her fingers clean with an erotic slurping sound.
"Teacher?" Kars watched her, his tool becoming even more erect at the sight of her licking his semen.
"Work hard if you want more," she teased.
Kars doubled his speed. He finished the last problem and looked at her expectantly.
"Hehe, a promise is a promise." She pulled him back onto the table. This time, she wasn't just doing it for him; she was hungry for the taste of him. Her intense suction made Kars's body go limp with pleasure. Soon, the liquid she craved flooded her mouth.
Gulp. Gulp.
The sound of her swallowing was loud in the quiet room. As she ingested his essence, Keine felt her body grow hot. A singular thought took over her mind: I want this child to shoot inside me.
"Kars, you did so well. I'm going to give you a unique lesson now."
Keine sat on Kars, lifting her skirt to reveal soaking wet white panties. She tore them aside and sat down, guiding his meat into her body. She let out a long, shuddering moan of satisfaction as he filled her.
My body is eating my student's tool...
The taboo thrill combined with the physical friction made her brain tremble. She grabbed his face and kissed him deeply, their tongues tangling while she rode him up and down. Kars was overwhelmed, his mind going blank as the velvet walls of her pussy massaged him.
He erupted again, deep inside her. Keine slowed her movements, squeezing her internal muscles to milk every last drop out of him.
"Ha... see? Teacher didn't lie. It's wonderful, isn't it?"
"Yeah..." Kars nodded, still dazed. "Can I come back tomorrow night?"
"Of course," Keine agreed instantly, her mind too clouded with lust to think of the consequences.
As Kars flew back to the Scarlet Devil Mansion, Keine looked at the mess on the table. His homework was soaked in their mixed fluids. Her panties were ruined, dripping with his semen with every step she took.
The next morning, the moon had set, and Keine was back to her human self. She had a massive headache. Looking at Kars at her door, she felt like she couldn't show her face. She had made a pact with her student while transformed... and followed through.
"Teacher?" Kars asked, seeing her complicated expression.
"Come... come in."
As she turned around, Kars hugged her from behind, his hands sliding over her butt and thighs.
"We... we should be studying, Kars," she stammered, her body already reacting to his touch.
"Okay."
As he sat down, the memories of the previous night flooded her mind, turning her face bright red. She sat next to him, her breasts pressing against his shoulder. Every time he moved, his shoulder rubbed against her sensitive nipples, making her let out tiny, involuntary moans.
"Teacher, I'm finished."
"Huh? So fast?" Keine snapped out of her daze. She realized she had been daydreaming for quite a while.
Kars reached over and began to knead her breasts. It was time for the "reward."
"Wait! Let me grade it first!" she protested, trying to buy time. But Kars just climbed into her lap and buried his face in her chest. She finished the grading with a trembling hand; he had actually gotten almost everything right.
"Teacher... is it time now?" Kars asked, looking up.
Keine wanted to tell him to go home, but she knew if she broke the promise, his motivation would vanish. She sighed and nodded. She let him lift her skirt and pull down her panties. As he began to lick her intimate spot, she leaned back on the table, her legs spread wide, moaning into the empty room.
Then, Kars entered her. The sensation was just as intense as the night before.
Suddenly, a voice called from outside. "Keine! I'm here!"
It was Mokou Fujiwara. Keine froze, her internal muscles clamping down hard on Kars's meat.
"I forgot Mokou was coming!" Keine panicked. She tried to get Kars to stop, but the sudden tightness only made him thrust harder. She slammed her hand over her mouth to stifle a scream of pleasure.
"Keine? Why aren't you answering? I know you're in there."
"Mokou! Wait... mmgh... wait a sec! I'm... cleaning up! Mmph~!"
She tried to sound normal, but her voice was shaky and breathy. Kars didn't stop; the danger only seemed to make him more excited.
"Your voice sounds weird, Keine."
"Just... a sore throat... ahh~ it's nothing..."
"Did you talk too much in class? Anyway, we're going to Mystia's for snacks. You ready?"
"I... I can't go... something came up... hngh~ Sorry!"
"Oh, alright. Next time then."
As Mokou's footsteps faded, Keine finally let out the scream she'd been holding back. "Ahhh! Ahh! Ahh!" She collapsed into the pleasure, her hips bucking against Kars.
"Kars... you have no idea... how dangerous that was..." she panted, her voice full of affection.
"But it felt so much better suddenly. I couldn't help it."
"You brat... next time, stop when I tell you."
But she didn't really care. She just wanted to feel him. "Shoot it... all of it... inside me..."
Kars filled her to the brim, the sound of the liquid pumping into her echoing in the room. Afterward, Keine knelt and licked him clean, swallowing the excess cum that leaked out of her own body.
"I'll see you tomorrow for your lesson, Kars," she whispered, stroking his hair.
"Keine, you've been in a great mood lately. You've changed," Mokou remarked a few days later. "And you never have time to hang out at night anymore."
"I'm just busy with Kars's lessons," Keine said, her face flushing. She had been spending every night in Kars's arms, learning new "positions" that left her addicted.
"Well, that guy is impressive," Mokou said. "Surviving your 'lesson hell' for days on end... he's got a strong will."
Keine smiled. "It's time. I have to go prepare. See you later, Mokou."
Keine hurried home. When the knock came, she opened the door and pulled Kars into a hug.
"Teacher." Kars's hands found her butt immediately.
"Is there more to learn today?" he asked.
"No. I've taught you everything I know."
Kars looked devastated. "So... no more rewards?"
Keine laughed and kissed him deeply. "Let me finish. Since you've graduated, I have a final reward for you. One I think you'll like."
"What is it?"
"The final reward is... you can come to me for your 'reward' whenever you want. For the rest of your life."
Kars's eyes lit up. He squeezed her tight. "I love it! Best reward ever!"
"Can we do the 'good thing' now, Teacher?" He pointed to the tent in his pants.
"Yes. Teacher said whenever you want."
Keine stripped naked and used her breasts to friction-fuck his meat, licking and sucking him with newfound skill. She was no longer conflicted; she loved this relationship. She took him inside her and the house was filled with the sounds of their wet, rhythmic union.
Meanwhile, Mokou was walking toward Keine's house with some midnight snacks, thinking Kars might be hungry after all that studying. As she reached the door, she heard a sound. Despite the insulation, she could hear Keine's unmistakable, high-pitched moaning.
What is she doing?
Mokou crept to the window and peeked through a crack. Her eyes nearly popped out of her head. She saw Keine naked on the bed, with Kars—also naked—pumping into her. White fluid was smeared everywhere.
Keine and Kars... are doing THAT?
Mokou couldn't look away. Her own body began to feel feverish. Watching her best friend in such a state, her own pussy began to ache. Her panties grew wet with her own juices. The musky scent of sex wafted out the window, driving her wild.
She watched Kars fill Keine up, then pull out and shove his cock into Keine's mouth. She watched Keine eagerly swallow his cum, licking every drop.
Mokou fled back to her hut in the bamboo forest. She stripped off her overalls, revealing her soaking panties. She reached down and began to rub her clitoris, her own moans filling the quiet forest.
A few days later, during a festival in the Human Village, Mokou found Keine.
"Oh? You have time today?"
"Yes, Kars's lessons are officially over," Keine smiled. "Though we might have 'occasional tests' at night."
Mokou knew exactly what those "tests" were. As they walked through the festival, Keine looked more beautiful and radiant than ever, her kimono hugging her new, glowy curves.
They bumped into the Scarlet Devil Mansion crew. Kars was there with Remilia and Flandre.
"Teacher Keine!" Kars ran over and hugged her, his hand boldly squeezing her ass.
"Kars! Don't be so obvious," Keine whispered.
"Let's all hang out together!" Kars suggested. Mokou didn't object, and the whole group spent the evening together. Eventually, Keine invited everyone back to her house for cards and snacks.
As they sat around the kotatsu (heated table), Kars felt a foot rubbing against his leg. He looked around. Remilia and Flan were focused on the cards. Sakuya and Meiling were on his sides. It had to be Keine... or Mokou.
He looked at Keine, who winked at him. He stretched his leg out further and found a smooth sole. He used his toes to grab at the fabric of her socks, pulling her closer.
Soon, he felt the leg move even closer. He reached out under the table, grabbed the foot, and guided it to his crotch. He pulled out his tool and let the smooth foot massage him.
But then, Keine stood up to get more snacks.
Kars froze. If Keine was standing... whose foot was currently rubbing his cock?
He looked across the table. Mokou was sitting there, her face beet-red. When she saw him looking, she glared, but her foot didn't stop moving.
Kars realized he'd targeted the wrong person, but Mokou didn't seem to mind. He put down his cards. "I'm gonna take a nap," he said, and crawled under the kotatsu. Sakuya and Meiling watched him go, knowing exactly what he was up to.
Under the table, Kars was surrounded by legs. He crawled over to Mokou, lifted her legs onto his shoulders, and buried his face in her crotch.
Mokou gasped, her body tensing. She peeked under the blanket, saw Kars's face between her thighs, and quickly dropped the cover so no one would see. She could no longer focus on the game. She reached down and stroked his hair.
This brat...
She felt his hands moving on her, making her wet. She played along, pretending to be hot and unbuttoning her collar. She unhooked her overalls and pushed them down to her knees.
Kars didn't wait. He took her pink entrance into his mouth and began to lick frantically.
"Mmph~!" Mokou shivered. To hide her reaction, she slumped onto the table, hiding her face in her arms.
So this is what Keine gets to feel... it's amazing...
She started to fall in love with the sensation. Beneath her arms, she wore a dazed, addicted smile.
The others weren't fools. Sakuya and Meiling knew Kars was under there with Mokou. They just kept playing. Only Keine asked, "Mokou, you okay?"
"I'm... fine... just... need to rest..."
Suddenly, Kars pushed his meat into her. Mokou arched her back and let out a loud moan.
"Mokou?! What's wrong?" Keine asked, startled.
"I... I... ahh~!"
Mokou couldn't answer. Kars was pumping into her, his shaft hitting her womb with wet, slapping sounds.
"She's just playing with Kars," Remilia explained casually.
Keine lifted the kotatsu cover and saw Kars on top of Mokou. She froze.
"Keine... don't... don't look..." Mokou hid her face in shame.
"Kars, come out of there. It's too hot under the table," Keine said calmly.
"Keine...?" Mokou looked at her, confused.
"I talked to Remilia about Kars and me a while ago," Keine explained. "Everyone here has a relationship with him, Mokou. Remilia wants to grow the family, so she supports it. I didn't expect you to join in so fast, though!"
"I... mmgh~!!" Kars accelerated, hitting Mokou with a powerful burst of semen that filled her to the brim.
When they crawled out, Mokou was dazed. "Filled... on the first time..."
She watched as Keine immediately began to lick Kars clean. Then, Keine stripped off her kimono, revealing her naked body, and joined Kars on the floor for a new round right in front of everyone.
The house became a den of sin. Remilia played cards while Kars hammered her from behind. Sakuya fed Kars oranges while they swapped spit. Mokou was pulled back in, her legs spread wide for all to see as Kars filled her again and again.
The sun rose over a room filled with beautiful, naked, fluid-stained bodies. Mokou's eyes were glassy, her mind erased by pleasure. She didn't know how many times Kars had finished inside her; she just knew her belly felt heavy and warm.
By evening, they finally woke up. Kars hugged Mokou's neck.
"Mokou is my wife now too!"
"You... you just decided that on your own?" she sighed, but she couldn't find a reason to say no after such a night.
"Because you like me, right?"
"Tch. Fine. I give up." Mokou hugged him back, sealing the deal.