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Chapter 23 - Chapter 23: Glycerin, Lust, and Completely Destroyed Lines (R-18)

Mitsuki's words hung in the air between them like a dangerous invitation.

"Take off my jeans."

Ren felt his heart stop completely before restarting at double speed. His hands still rested on Mitsuki's breasts, feeling how her nipples pressed against his palms.

Shameless woman. She is asking me directly.

"Mitsuki-san," his voice came out raspier than he intended. "Are you sure? Because if we cross this line..."

"We already crossed it," Mitsuki interrupted him, her glassy eyes looking at him with an intensity that made her response seem inevitable. "Just that neither of us wanted to admit it."

She was right. The sexual tension had been building like a pressure cooker about to explode.

"Your son is upstairs," Ren pointed out, even though his hands were already moving down from her breasts toward the waistband of her jeans.

"Katsuki sleeps like a log," Mitsuki replied. "Once he lies down, nothing wakes him up. Believe me, I have tried."

His fingers found the button of the jeans.

Click.

The button gave way. Ren lowered the zipper slowly, the metallic sound resonating obscenely loud in the silence of the living room.

"Lift up a little," he instructed her.

Mitsuki obeyed, lifting her hips off the sofa. Ren hooked his fingers into the waistband of the jeans and began to pull down. The fabric was tight, clinging to her legs because of the moisture covering her.

Inch by inch, the jeans lowered. First, it revealed her underwear, now completely soaked. The fabric clung to her anatomy, outlining every fold of her intimate area with shameful clarity.

She is so wet that you can see everything through the fabric, Ren observed while he continued lowering the jeans past her thighs.

Mitsuki's skin shone under the living room light, completely covered by that layer of glycerin that her Quirk produced naturally. The jeans reached her knees. Her calves. Finally, they fell to the floor along with her shoes, which had come off in the process.

Mitsuki lay now on the sofa wearing only her wrinkled blouse around her waist and her soaked underwear. Her chest rose and fell with heavy breathing as she watched Ren watch her.

Ren knelt in front of the sofa, his hands sliding slowly up Mitsuki's ankles. They moved up her calves, feeling how the glycerin made everything slippery. When he reached her knees, he pushed them gently outward.

"Open your legs,"

Mitsuki obeyed without protest, separating her thighs until she was completely exposed before him. The wet stain on her underwear had grown obscenely. The black material was now practically translucent from saturation.

"God, look at you," Ren murmured while he slid both hands down her inner thighs. "You are absolutely soaked."

"Do not judge me," Mitsuki gasped when his fingers moved dangerously close to her center. "I am too turned on."

His thumbs reached the edges of her underwear. He hooked the elastic material and began to lower it slowly, revealing inch by inch what had been hidden.

The soft skin of her lower belly appeared first. Then the beginning of her pubic hair, blonde and unruly, which gave her an even more erotic look. And finally, when he pulled the garment completely down and off her legs, she was completely exposed.

I am in heaven, was the first coherent thought that crossed Ren's mind.

Mitsuki's intimate folds were a light pink, swollen from arousal to the point of separating slightly. And they were absolutely soaked. Not just by normal glycerin. There was another liquid mixing with it, clearer and more viscous, dripping from her entrance and leaving a shiny trail on her skin.

"Mitsuki-san..." Ren was genuinely impressed. "I have never seen someone so wet."

"Shut up," she turned her face to the side in embarrassment. "Do not say it out loud."

"Why not? It is incredible."

Ren slid an exploratory finger over her folds, feeling the slippery texture under his fingertip. Mitsuki shuddered violently in response, her hips rising involuntarily.

"Ahhh..."

The moan was soft, loaded with need. Ren continued exploring, his finger tracing the contour of her entrance before sliding upward. When he found her clitoris, he applied gentle pressure with circular movements.

"Mmmph!" Mitsuki bit her lip to silence the sound that wanted to escape.

"Relax," Ren murmured while he maintained a steady rhythm. "Let me make you feel good."

He increased the pressure slightly, his circles becoming more deliberate. Mitsuki began to breathe more heavily, her hands gripping the sofa cushions with increasing strength.

She is so sensitive, Ren noted while he observed how her whole body reacted to every touch. Weeks of sensory manipulation have left her completely sensitive.

"I need..." Mitsuki gasped between irregular breaths. "I need your mouth..."

Ren did not need to be told twice. He leaned forward, his hot breath brushing against her hypersensitive skin. Mitsuki trembled in anticipation, separating her legs further in silent invitation.

When his tongue finally made contact, Mitsuki had to press both hands against her mouth so as not to scream.

"NNGH!"

The taste was a complex mix. The glycerin had a slightly sweet and slippery touch. But underneath there was something musky and purely feminine that made him want more.

His tongue traced a long and deliberate line from her entrance to her clitoris. Mitsuki arched her back so violently that she almost hit him with her hips. Ren had to hold her firmly by the thighs to keep her in position.

"Stay still," he warned her in a raspy voice. "Or Katsuki is going to hear."

Mitsuki nodded frantically behind her hands, but her eyes told him that staying still was going to be almost impossible.

Ren returned to his work with renewed determination. His tongue found her clitoris and began to lick it with slow but steady circular movements. The reaction was immediate and devastating. Mitsuki's legs trembled over his shoulders, her thighs tightening involuntarily against the sides of his head.

Schlrrp... schlrrp...

The obscene sound of his tongue working against her wet anatomy filled the space between them. Ren had no shame, savoring every inch of her while Mitsuki writhed under his attention.

He alternated techniques deliberately. First, long and slow licks that covered the entire area, making her tremble. Then soft suctions directly on her clitoris that made her convulse. Then quick movements with the tip of his tongue that elicited stifled moans.

"Haaa... haaa... oh Ren..." Mitsuki whispered between her hands pressed against her mouth.

Ren decided to increase the intensity. He slid a finger inside her while his tongue continued to work her clitoris mercilessly. Penetration was absurdly easy with all the natural lubrication flowing copiously.

"Mmmph!" Mitsuki bit her palm so as not to scream at the double stimulation.

Her inside was incredibly hot and tight. The walls closed around his finger, pulsing rhythmically with every beat of her racing heart. Ren began to move it slowly, curving it slightly to search for that special spot that he knew would make her lose her mind.

When he found it, Mitsuki practically jumped off the sofa.

"NNNGH!"

"Shhh," Ren murmured against her skin before applying constant pressure against that spot while his tongue increased speed over her clitoris.

He added a second finger, stretching her more. Mitsuki moaned audibly behind her hands, her hips beginning to move erratically. She was trying to fuck herself against his fingers and his tongue simultaneously, seeking more friction and pressure than he was giving.

"More," she gasped with a desperate voice. "This... It feels good..."

Ren complied, adding a third finger and pushing deep while he increased the intensity of his tongue. His fingers moved inside her with a steady rhythm, pressing that special spot with every thrust while his tongue worked her clitoris without rest.

Schlick... schlick... schlick...

The wet sound of his fingers fucking her mixed with the sounds of his tongue. Liquid flowed copiously now, soaking Ren's hand and dripping onto the sofa beneath her in an obscene amount.

"Ren... Ren... I am going to..." she could not complete the warning.

Her orgasm hit her violently. Her back arched so violently that her breasts pointed at the ceiling. Her thighs squeezed Ren's head with enough force to be painful. And her whole body went completely stiff while waves of pleasure shot through her mercilessly.

"MMMMMPH!" the moan was completely muffled in her hands, but Ren felt the vibrations from her throat.

Her internal walls contracted rhythmically around his fingers, squeezing and releasing in pulses that seemed endless. A spurt of liquid came out, soaking everything completely and creating a considerable wet spot on the sofa.

Ren guided her through everything, his fingers and tongue never stopping until the convulsions finally began to diminish. Only then did he slow down, changing to soft and comforting licks while she slowly came down from her climax.

Finally, Mitsuki collapsed against the sofa. Her chest rose and fell with labored breathing. Sweat mixed with glycerin covered every inch of her skin, making it shine under the living room light.

"That was..." her voice came out broken. "I had never... Oh my God..."

Ren wiped his mouth with the back of his hand while remaining knelt in front of her. His erection was painfully obvious now, pressing against his pants with an urgency that he could no longer ignore.

Mitsuki noticed his condition immediately. Her eyes focused on the prominent bulge, and something hungry and grateful shone in her post-orgasmic gaze.

"Take them off," she ordered with an authoritative voice despite her exhausted state.

"What?"

"Your pants. Take them off now."

Ren obeyed without arguing. He stood up and unbuckled his belt with hands that trembled slightly from excitement. He lowered the zipper. He let his pants fall to the floor along with his underwear in a single motion.

His erection was exposed, sticking out proudly. It was not massive or pornographically large. Slightly thicker than average. But it was absolutely rigid, the tip shining with pre-seminal fluid that dripped slowly.

Mitsuki licked her lips unconsciously while she observed him with evident appreciation.

"Come here," she ordered him, sitting more upright on the sofa.

Ren approached. Mitsuki reached out a hand and wrapped her fingers around his length without hesitation. The contact made Ren inhale sharply, his hips pushing involuntarily toward her grip.

"Shit..."

The glycerin on her hand created a perfect and instant lubrication. Her fingers slid without the slightest effort as she began to massage him with slow but incredibly firm movements.

Schlick... schlick... schlick...

The wet sound of her hand working his erection was obscene and perfect. Ren closed his eyes, concentrating on not finishing embarrassingly fast under her expert attention.

"You have been taking such good care of me," Mitsuki murmured while she continued with her hand. "Let me return the favor properly."

Before Ren could ask what that meant, Mitsuki leaned forward and took him into her mouth without warning.

"Fuck!" Ren had to bite his fist so as not to scream and wake Bakugo up.

The wet heat of her mouth was absolutely indescribable. Her tongue slid down the bottom of his length with expert movement while her lips closed around him, creating a perfect suction. The combination of her saliva and glycerin created a slippery sensation that made his knees tremble dangerously.

Mitsuki began to move with clear experience. Her head moved up and down with slow and deliberate movements. Her cheeks hollowed with every powerful suction. She maintained direct eye contact with Ren the whole time, her eyes shining with evident satisfaction at the devastating effect she had on him.

Schlorrp... schlorrp... schlorrp...

The wet sounds filled the room in an obscene manner. Mitsuki had no shame, taking him deep until she felt her throat before pulling back completely to take a breath. Then she repeated the process with renewed vigor.

"Mitsuki.... your mouth is..." Ren could not complete coherent sentences.

She increased the speed deliberately, one of her hands wrapping around the base of his length while her mouth worked the upper half with devastating suction. The double stimulation was completely overwhelming for his senses.

Her other hand found his testicles, massaging them gently with the glycerin acting as the perfect lubricant. Ren felt the pressure building quickly and dangerously in his lower belly.

"I am going to..." he tried to warn her between gasps.

Mitsuki looked him directly in the eyes and nodded slightly without releasing his mouth. Explicit permission.

But Ren had other plans.

"Wait," he managed to say, using his hand to gently stop her movements. "I do not want to finish like this."

Mitsuki released him with a wet sound, looking at him with a mix of confusion and disappointment.

"Why not?"

Ren looked her directly in the eyes, his intention clear in his expression with a shameless smile.

I have come to this world to live to the fullest, and shame will not stop me

"Because I want to be inside you when I do."

Mitsuki processed his words, her face passing through multiple emotions in seconds. Surprise. Doubt. Desire. And finally, resignation mixed with raw need.

"Are you sure about this?" she asked, although her body was already responding. Her legs separated more, inviting him wordlessly.

"Completely."

"There is no turning back after this."

"I know."

Mitsuki studied him for a longer moment. Then she nodded slowly.

"Then come here and fuck me like we both clearly need."

Ren did not need any more invitation. He positioned himself between her open legs, his erection brushing against her soaked entrance. The sensation made them both inhale sharply.

"Are you ready?" he asked, one last courtesy before crossing the final line.

"Stop talking and just put it in," Mitsuki growled with impatience.

Ren obeyed. He aligned his length with her entrance and began to push slowly. Penetration was surprisingly easy with all the natural lubrication, but the sensation was indescribable.

Heat. Pressure. Absolute moisture. Mitsuki's walls wrapped around him like wet velvet, squeezing him perfectly as he slid inch by inch deeper.

"Ohngh..." Mitsuki moaned when he was finally completely buried inside her.

Ren stopped, giving her time to adjust. But Mitsuki had no patience to wait.

"Move," she ordered, her hands grabbing his shoulders. "Move now."

Ren began with slow and controlled thrusts. He came out almost completely before going back in with fluid movement. Each penetration elicited small moans from Mitsuki that she tried to stifle by biting her lip.

Plap... plap... plap...

The sound of skin against skin began to fill the room, mixing with their heavy breathing. The glycerin and her natural lubrication created a perfect glide that made every movement absolutely pleasurable.

"Faster," Mitsuki gasped. "Harder..."

Ren increased the pace, his hips pushing with more force. The sofa began to creak under the movement, but neither of them paid attention. They were too lost in the sensations.

"Ahh... ahh... yes..." Mitsuki moaned softly with every thrust.

Ren leaned forward, capturing one of her erect nipples in his mouth while he continued to fuck her. The double stimulation made Mitsuki arch her back violently.

"Mmmph!"

He sucked her nipple hard while his tongue tortured it. His fingers found the other nipple, pinching it and rolling it until Mitsuki was trembling uncontrollably beneath him.

The angle changed when Mitsuki lifted her legs, wrapping them around Ren's waist. This pushed him even deeper, making them both moan at the new depth.

"Fuck... Mitsuki..."

"Do not stop... please do not stop..."

Ren increased the pace even more, his thrusts becoming more erratic and desperate. He could feel his own orgasm approaching rapidly, the pressure in his lower belly reaching unsustainable levels.

"I am close," he managed to gasp between thrusts.

"Me too... do not stop... I am almost..."

Plap plap plap plap

The rhythm became frenetic. Ren was fucking Mitsuki with complete abandon now, each thrust pushing her deeper into the sofa cushions. Her breasts bounced with every impact, the sight hypnotic and perfect.

"Ren... Ren... I am going to..." Mitsuki warned with a broken voice.

"Cum," Ren growled. "Just do it."

As if his words were the trigger she needed, Mitsuki exploded. Her orgasm hit her even harder than the first one. Her whole body went rigid, her internal walls contracting rhythmically around Ren with devastating force.

"MMMMMPH!" the scream was stifled as she bit her own hand hard enough to leave marks.

The sensation of her walls squeezing him so tightly while they pulsed was too much. Ren felt his own orgasm crash over him like a wave.

"Mitsuki... I am going to..."

"Inside," she gasped incoherently. "Finish inside..."

Those words destroyed the last vestige of his control. Ren buried himself as deep as he could and exploded inside her. He pulsed again and again, releasing everything while Mitsuki milked him with her internal contractions.

Spurt... spurt... spurt...

It seemed endless. Each pulse sent more of his essence inside her until finally, after what seemed like an eternity, it ended.

Both collapsed simultaneously. Ren slumped over Mitsuki, too exhausted to support his own weight. She wrapped her arms around him, holding him against her chest while they both caught their breath.

The silence that followed was only interrupted by their heavy and synchronized breathing.

Finally, after several minutes, Ren found the strength to talk.

"That was..."

"Incredible," Mitsuki completed, her voice sounding sleepy. "That was absolutely incredible."

Ren pulled out slowly, both moaning at the loss of connection. When he came out completely, he saw evidence of what they had just done. His semen dripped from her entrance, mixing with her natural lubrication and creating a considerable mess on the sofa.

"We should clean this," he pointed out practically.

"In a minute," Mitsuki closed her eyes while she opened her legs further. "Let me enjoy this moment first."

But the universe had other plans.

Upstairs, they heard a sound. Heavy footsteps. A door opening.

Both froze instantly, panic replacing their post-coital satisfaction.

Bakugo had come out of his room.

*****

Author's Note: I hope you enjoyed the R-18 chapters! I'd love to hear your thoughts—did you love them? Hate them? Is the writing style working for you? Let me know in the comments!

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