Lustful Fanfictions

Their breaths were ragged, their bodies limp, but satisfaction was evident on their faces after the passionate battle in each other's mouths. They looked at each other, a strange understanding emerging without words. A smile appeared on Mitsuki's lips, followed by a mischievous grin on Katsuki's face. Finally, both of them burst out laughing, filling the bathroom.

"Hah... Hah... You're not bad, for a little kid," Mitsuki panted, but her pride was clearly audible.

"Tch! I told you, didn't I? I'm the best!" Katsuki retorted, his voice a little hoarse, but with his trademark arrogance. "You're not bad either, for an old woman."

"What did you say?! Do you want Mommy to hit you?!" Mitsuki threatened, but her smile didn't fade.

Rex, in Katsuki's body, simply sank into the moment, savoring the moment. However, his dominant instincts began to stir. "Now, it's your turn to serve, old woman," he said, trying to push Mitsuki's body down onto him.

Mitsuki glared, her eyes blazing . "What did you say?! Mommy? Serving a snotty brat like you?! Don't even dream! Mommy will take the lead!" She pushed Katsuki back with a force that couldn't be underestimated.

Katsuki grinned. "Tch! Just try if you can!"

A small fight ensued. The two of them pushed each other, rolled on the wet floor, tried to gain the upper hand, engaged in a challenging verbal argument—a familiar dance of dominance for both of them.

"I'm the strongest! I'll take the lead!" Katsuki shouted, pushing with all the strength of his small body.

"Don't dream! Mommy has experienced more than you, brat!" Mitsuki replied, in a condescending tone .

Unfortunately, Katsuki's small frame was no match for Mitsuki's mature physical strength. Rex found himself being pushed around, and eventually, he sat against the wall, his legs stretched out in front of him, his breath slightly labored by the force. His face showed annoyance, but there was a glimmer of anticipation in his eyes.

Mitsuki, triumph evident on her face, didn't wait long. She positioned herself above Katsuki, her wet, throbbing pussy slowly descending, inch by inch, to meet his cock . "See, brat? Mommy 's going to teach you today," she whispered, her voice low and sensual. Her large, plump breasts swayed slightly with her labored breathing.

Katsuki snorted, his eyes blazing. "Tch! That's because Mommy cheated, you hag! Let go of me!" However, inside, Rex was smiling with satisfaction. This was the perfect position for what was about to happen next.

Mitsuki didn't wait long. With a movement that displayed confidence and complete control, she knelt between Katsuki's spread legs. She took control, taking Katsuki's large, hard cock in her bold hands and guiding it into her wet, ready pussy . A moan of anticipation escaped her lips.

Slowly, Mitsuki began to lower herself. Her pussy entered inch by inch onto his cock . Mitsuki's body tensed, her abdominal muscles twitching subtly, trying to adjust to the unexpected size. A deep moan escaped Mitsuki's lips, "Ohh... My pussy ... So full... Stretching... Ahh..." Every inch that entered felt like a new explosion of sensation. She could feel every curve of Katsuki's cock filling her, experiencing a feeling of unparalleled fullness.

"Ohh... ngghhh... Katsuki... it... it's going in... ahhh... Damn... you're so big..." Mitsuki moaned, her eyes closed, her head tilted back, feeling the slow but steady penetration. Her large breasts shook as her breathing became labored. "Deeper... more... hah... I can feel it filling my pussy ... Nggghhh! Damn... this... this is so tight!"

Mitsuki continued to lower herself, her hips gyrating slowly, until finally, his cock was all the way in, sinking into her pussy . Mitsuki's body tensed, her back arched, a long, intense moan escaping her throat. "Ah! Oh my! It's... it's going... all the way in... Your cock ... It's going all the way through my cervix... It's going all the way into my womb... Ohh... Oh my God... It's so deep... Ahh!" As Katsuki's cock was completely inside her, Mitsuki's stomach bulged slightly forward, forming the silhouette of Katsuki's cock filling her . The sensation left her speechless.

Mitsuki groaned, then paused for a moment, her head tilted back, her eyes closed, as she felt and adjusted to the incredible sensation. A strange calm came over her as she fully felt Katsuki's presence inside her.

As Mitsuki silently adjusted to her surroundings, her large, plump breasts were right in front of Katsuki's face. Katsuki didn't waste this opportunity. He sucked on one of Mitsuki's nipples with his mouth, sucking on it greedily, while his other hand squeezed her breast, twisting it in adoration.

Mitsuki snapped out of her reverie, a heavy moan escaping her lips. "Tch! Damn brat! Don't play with my breasts!" However, Katsuki's touch only reawakened her arousal. "Aahhh! Katsuki...! That... that tickles...! And... and feels good...! Keep sucking my nipples! Don't stop! I... I love it so much... ahhh...! Bite a little... I love your bites... ohhh!" Mitsuki moaned again, "You know exactly how to drive Mommy crazy, son!"

Mitsuki, already accustomed to the size and depth of Katsuki's cock , began to move slowly. She moved her hips up and down, feeling her pussy stretch wide, so full and tight around Katsuki's cock . Every little movement felt so intense, a pleasure she had never experienced with Masaru. Each time Katsuki's cock slammed into her womb, Mitsuki's stomach tightened and bulged slightly, as if molding to the curve of Katsuki's cock from the outside .

"Ahhh... ngghhh... it feels... it feels so full... so good... my breasts... throbbing... my clit... being rubbed a little... ohh...!" Mitsuki moaned, her face flushed, her eyes closed. Her body writhed slightly, feeling every inch of penetration. "Keep going... like that... don't rush it yet... I want to feel it slowly... every inch of your cock ..."

Katsuki, impatient and impulsive, began thrusting his hips from below, trying to speed up the rhythm. "Tch! Why are you so slow, hag?! Hurry up! I don't have time! I want to go faster! Move your ass harder!"

Mitsuki, who hated being dictated to and dominated, especially by her own son, reacted immediately. She opened her eyes and glared at Katsuki. A hard slap landed on Katsuki's head.

"Shut up, brat! Don't dictate things to your mother ! I'm in charge here! If you don't like it, you can get out of my pussy !" Mitsuki shouted fiercely, but there was a sly smile on her lips and a hint of challenge in her voice. "I'll show you who's in charge here!"

The slap, instead of angering Katsuki, only further fueled their madness. Katsuki's smile widened. "Hmph! You're fierce, hag! But that's just the way I like it! Do whatever you want! I can keep up! I'll show you who's the craziest between us!"

Mitsuki, provoked, finally let go of her grip. Her movements became fast, wild, and passionate. She moved up and down with full force, riding Katsuki's cock at an intoxicating pace. Each thrust made her arch, her breasts jiggle wildly, her blonde hair wet with sweat and sticking to her face. Each time she came down, Katsuki's cock slammed hard into the base of her womb, making her belly ripple and bulge .

"Aaaahhh! Nggghhh! Feel this, Katsuki! Feel how Mommy leads! I'll make you beg! My pussy ... gripping you...! My womb... throbbing...! Ohhh! This is so... so crazy! I can't stop!" Mitsuki screamed, her wet hair flying. Her body shook violently with every movement. "Keep sucking my nipples! Harder! Make me scream louder! I want the whole house to hear me!"

Katsuki continued to play with Mitsuki's breasts and nipples, sucking and squeezing them fiercely. He also began thrusting his hips, creating an increasingly frenzied rhythmic thumping, fighting for dominance in pleasure. They both moved with equal wildness and ferocity, demanding and satisfying each other, creating a symphony of moans and groans that flooded the bathroom. Each time Katsuki's cock thrust deep into Mitsuki's womb, her stomach tensed and bulged, as if revealing the shape of his cock beneath her skin.

Mitsuki expertly gyrated her hips, squeezing Katsuki's cock with every rotation, every thrust. Her tight pussy gripped him tightly, giving him an incredible sensation, as if massaging every inch of his cock .

Time seemed to stop, but the pleasure only increased, pushing them to the edge of sanity. Mitsuki, with her eyes tightly closed, writhed and arched her back, her pussy relentlessly massaging and sucking Katsuki's cock deep inside her womb . Moan after moan escaped her throat, increasingly hoarse, increasingly desperate. "Ohh... Katsuki... oh my... this... this is crazy! Your cock ... inside my womb... keep... keep Mom... ahhh... I'm going crazy!" She moved her hips faster, letting her body be overcome by wild sensations she had never felt before.

Mitsuki's stomach bulged and throbbed with every thrust . Sweat poured down her body, dripping from her forehead, wetting her blonde hair. She grabbed Katsuki's hair, pulling him closer, their lips meeting in a brutal, passionate kiss. Their moans mingled, dissolving any sense of reason. "Deeper, brat! Mommy wants it deeper! Ohh... it hurts... but it feels good! Damn you! I... I can't take it anymore... my womb... is full... Ohhh...!" she screamed, her voice reaching a high pitch, almost desperate.

Mitsuki was getting out of control. Her hips were bucking more and more brutally, riding Katsuki at an intoxicating pace. Each thrust was a devastating blow that left her breathless. "Aahhh! Your cock ! It's too big! Nggghhh! I... I can't take it! But keep going! Keep going! Mommy loves it! Ohh, shit! My head... feels like it's going to explode! Harder, Katsuki! Don't stop!" She squeezed Katsuki's thighs with her feet, as if wanting to pull him deeper into her.

"Hmph! You're amazing, hag! I'm going to fill you up!" Katsuki roared, his hands now gripping Mitsuki's ass, lifting her slightly to ensure each thrust hit its target. Each time his cock sank deep, Mitsuki's stomach jumped, revealing the hard lump beneath. "Feel it! Feel how my cock dances inside your womb! Mommy's going crazy for me!"

Mitsuki bit Katsuki's shoulder, a muffled moan escaping her lips. The sensation of his unstoppable thrusts into her womb, coupled with Katsuki's sucking on her nipples, made her dizzy with pleasure. "Aargh! Crazy! This is crazy! Your cock is really going to kill me! Nngh! I... I want to... I want to cum! Now, Katsuki! Don't wait any longer!" Her body arched back, her head thrown back, her neck arched, and her abdominal muscles tensed violently, trying to contain the sensations flooding through her.

Katsuki, now completely consumed by lust, met Mitsuki's every thrust with equal force. He quickened his pace, squeezing Mitsuki's hips with both hands, encouraging her to continue riding his already throbbing cock inside her mother 's womb . "Yes, Mom! Feel this! I'm going to fill you to the brim! My cock is going to explode inside your womb!" He roared, his eyes glowing red.

Their breaths quickened, the sound of wet skin slapping against each other growing louder, filling the room. Mitsuki's body couldn't stop trembling, feeling Katsuki's cock swell and throb deep inside her. The sensation of her stomach bulging and tightening as Katsuki's cock slammed into her was making her unable to think straight. This was the most intense pleasure she had ever experienced.

"I... I can't take it anymore, Katsuki! Nggghhh! My pussy ... feels like it's going to explode! I can feel your cock swelling inside me!" Mitsuki screamed, her hoarse voice filled with desperation and incredible pleasure. Her belly continued to bulge with each thrust, showing how deep Katsuki was thrusting. "Give it to me! All your cum! Hurry! I want you to fill me, now!"

"Me too, Mom! I'm going to explode! My cock ... can't hold it anymore! AHHHH! I'm going to fill your womb to the brim!" Katsuki roared, his hips thrusting with the last of his strength.

Just as the shockwave of pleasure hit, Mitsuki's voice turned into a long, mad, high-pitched scream that filled the bathroom, followed by Katsuki's equally primal roar.

"AAAHHHHHHHH! NGGGGGGGHHHH! DAMN! FUCK! CUM! I'M CUMMING! OHHHH GOD!" Mitsuki arched her back, her body shaking violently, her pussy clenching tightly around Katsuki's cock , letting out a moan that sounded like a howl of satisfaction.

UUURRRRGGHHH! MOM! ME TOO! I'M EXPLODING! AAAAAAHHHHHH!" Katsuki roared, his hips thrusting with the last of his strength, and with his newfound control, shot several spurts of his sperm straight into Mitsuki's deepest womb without any of it spilling out.

Mitsuki lay limp on top of Katsuki, her breath coming in short gasps, each exhale a long sigh. Her body still trembled softly, feeling every remaining throb of Katsuki's cock inside her womb, and the warmth of his cum filling her. "Ohh... God... damn you... really... ahhh... my pussy ... it feels... it feels empty... but my womb is full..." she whispered, her voice barely audible, only a small moan remaining. Her stomach, which had been protruding, now slightly deflated with the contractions, but still felt full of warm fluid inside, giving her a strangely satisfying sensation.

Katsuki was beneath her, also panting, his body shaking and tensing from the release. He hugged Mitsuki tightly, his face buried in his mother 's neck . "Haaaah... haaah... crazy... you're so crazy, Mom... my cock ... feels... feels like it's going to fall off..." he whispered, in a tone of utter shock and satisfaction. "I... I didn't think... Mom... would be this wild..."

Mitsuki lifted her head slightly, looking at Katsuki with half-lidded eyes, a small smile etched on her swollen lips. "Hmph... you yourself... naughty brat... made Mom scream like crazy... the whole house must have heard it... noisy..." She complained, but her voice was filled with affection. A soft moan escaped again, "Nggghhh... still... still throbbing... inside..."

Katsuki chuckled, a raspy, tired laugh. "That's because my cock is the best, hag! Now feel it, I've filled your womb to the brim! There's no room left!" He squeezed Mitsuki's ass lightly, savoring the post-climax intimacy. "You're the loudest, old woman. But I like your screams... it means my cock is working well."

They both fell silent for a moment, only the sound of their ragged breathing could be heard. The intoxicating pleasure still reverberated within them, making them unwilling to move.

"You... you're amazing, brat," Mitsuki whispered, her voice hoarse. "I've never... felt this way with anyone... my pussy ... is still shaking... like a small earthquake..."

"Hmph... you're not bad either, hag," Katsuki replied, stroking Mitsuki's wet hair. "I also... feel something I've never felt before. My cock feels like it just won a war."

Then, Mitsuki leaned down, her lips closing in on Katsuki's. They kissed with a tenderness that surprised both of them. It was a slow, passionate kiss, a far cry from the ferocity of before.

"That's... so strange," Mitsuki whispered, her eyes closing slightly.

"Tch... I didn't think you could be so gentle, mom," Katsuki replied, his voice hoarse.

They both laughed together. This time the laughter was not crazy or sly, but rather a free laugh, a laugh of relief, and a strange laugh of happiness.

"You're absolutely insane, my boy," Mitsuki chuckled, pinching Katsuki's cheek. "Who knew you could make me scream like that? I almost fainted."

"Hahaha! That's because I'm the best, hag! My dick is unmatched!" Katsuki replied, but there was a hint of affection in his voice. "You're no less crazy. Your voice could probably be heard even next door. They must think there's a monster in here."

Finally, they rose, helping each other to their feet. Their bodies were still a little weak, but their passions were burning. They showered together, soap and water cleansing their bodies, but not erasing the traces of their recent pleasure. The little teases lingered, the naughty touches, the flirtatious whispers, but this time they were laced with a newfound intimacy and understanding.

Once finished, they emerged from the bathroom, stark naked, without the slightest trace of shame. The scent of soap and their clean bodies filled the air. A new aura enveloped them, a deeper understanding. The cool air touched their damp skin, but they didn't care. With a leisurely pace, Mitsuki walked ahead, followed by Katsuki. The two of them, a mother and son who had just gone too far, entered Masaru and Mitsuki's room, as if nothing had happened.

It was still morning, and they were ready to continue their 'game' in deeper privacy, under a warm blanket.