Sometimes, I would mischievously mimic my mother's sitting motion, thrusting my hips upwards with a sudden, forceful jerk motion! Like a battering ram slamming into a city gate!
"Smack!"
"Ugh—!" Each sudden, deep thrust into the uterus sent shivers down the mother's spine! Like a startled rabbit! A twisted, uncontrollable groan escaped her throat!
Squeeze your hips and legs tightly together!
All the muscles in my body instantly locked up!
The mother would immediately stop all movement like a frightened bird, observing every corner of the classroom with extreme fear. Only after confirming that no one was looking at her strangely would she dare to relax slightly and continue her slow, suppressed undulations.
This kind of stimulation, which repeatedly tests the edge of safety and exposure, is simply poison!
Make the tender flesh inside Mom's vagina tighten even more! Suck even deeper!
"Hiss..." I couldn't help but gasp, and leaned close to my mother's red and burning ear, whispering in a voice only she could hear, with a mix of coquetry and undeniable desire: "Mom... like this... I can't ejaculate... I want... to go in again..." My hot breath sprayed onto her sensitive earlobe.
Mom froze!
The penis inside her throbbed, sending another wave of tingling and numbness through her lower abdomen.
Mom turned her head sharply, her eyes filled with incredulous shame and... something deeper that had been ignited.
She stared intently at me, her eyes filled with intense struggle. The rustling sounds in the classroom seemed to transform into a death knell.
In the end, the struggle transformed into a tearful despair and an even deeper sense of shame. The mother, trembling, quietly and extremely slowly lifted the hem of her plain-colored shirt with one hand!
A section of fair, soft, and slightly adorably fleshy belly was exposed to the cool air!
She pulled my hands over, and with my burning palms, pressed them directly onto her warm, smooth, and delicate lower abdomen!
You can even feel the slight tension in her abdominal muscles with your fingertips.
Then, she leaned close to my ear, her breath hot and rapid, and commanded in a trembling voice, "Later... when I tell you to press... press... down... harder..."
I was stunned for a moment, then I understood what my mother meant. This is fucking insane!
She took a deep breath, as if to encourage herself.
The hand that wasn't holding mine trembled and groped its way into her skirt!
The sensation of my fingertips tracing the base of my exposed penis almost made me scream!
Then it goes down, through the thick pubic hair, and finally stops at her clitoris, which is swollen to its limit and hard as a pebble!
Mom paused for a second, a desperate glint of madness flashing in her eyes! Then, she suddenly began to rub that poor bud with rapid, forceful, and almost brutal movements!
"Ugh—!" She jerked her head back, her neck taut in a breathtaking arc, and a choked sob, filled with pain and intense pleasure, burst from her throat!
Her body trembled violently in my arms!
At the same time, her buttocks seemed to be ignited like a rocket! The speed of their movements suddenly increased! The amplitude also became greater!
Even through the skirt and my pants, the bouncy sensation of her beautiful buttocks, encased in black stockings, bouncing rapidly up and down on my legs was very noticeable!
Each more forceful thrust caused the glans to slam deeper against the resilient barrier of the cervix!
"Waaah...waaah..." She closed her eyes tightly, tears streaming down her face uncontrollably. Her body undulated like waves as she desperately rubbed her clitoris, as if torturing herself, or perhaps giving herself a final bit of courage!
Just as I felt the tip of my penis sink into the edge of a softer, more flexible opening that seemed to have opened slightly...
"Xiao Mo...!" Her voice, trembling with tears and on the verge of collapse, rang in my ears. "Press! Press harder!!"
Okay! Let's go!
My hands, which I've been waiting for so long!
The ten fingers instantly became like iron claws!
It sank deep, without reservation, into the soft flesh of its mother's lower abdomen!
I could clearly feel something the size of an egg, hard and spherical, beneath her skin—that was her uterus!
This is it!
I mustered every ounce of strength in my body!! My arm muscles bulged! I used every ounce of my might! I pressed down hard! Firmly! Determinedly! I pressed down with all my might!!!
Simultaneously! A burst of power erupts from the waist and hips! Like a beast pouncing on its prey! With all one's might! Upward! Fatally! A fierce, relentless thrust!!!
"Pop~"
A strange sound, extremely faint, that only the two of us could feel deep within our souls, as if a flexible barrier had been forcibly broken through!
With the combined force of my brute pressure and upward thrust, my mother's delicate cervix, which had never been directly penetrated by such a massive object before, was forcibly dilated and torn!
The enormous, scalding hot glans was like a battering ram!
It fiercely pushed aside that last sacred barrier!
Deeply!
Absolutely!
Without a single gap!
Utterly arrogant!
It contains a mother's warmth, tightness, and unimaginable softness!
I've never been invaded by a foreign object like this before!
The core of life's creation—the uterine cavity!!!
"Um--!!!!!!"
The mother's body suddenly arched upwards into an astonishing, almost breaking arc!
Like a dying fish thrown ashore!
The veins on his neck were bulging!
His mouth was wide open, forming a silent, extremely distorted "O" shape!
Only a silent, desperate scream was frozen on her tear-streaked and extremely flushed face!
Extreme, tearing pain and overwhelming agony! A pleasure as if her soul were being bursting simultaneously swept over her!
My mother's uterine cavity had never been invaded like this before!
Like being thrown into ice water with scalding hot stones!
It caused an uproar instantly!
The tender flesh of that cavity wall is not a membrane at all!
It's alive and well!
Like countless tiny, hungry mouths!
A frenzied revenge fueled by excruciating pain!
In an instant! Frozen! Spasmodically! Tightened completely, sucking! Enveloping my enormous glans, which had invaded the deepest, most forbidden territory of my life!!
"Hiss—!!!" I gasped! Awesome! That was fucking awesome, it felt like my soul was leaving my body!!!
The sensation of my glans being completely enveloped, massaged, and sucked by that incredibly tight, tender, and warm material, like a living sheath of flesh! That feeling! A hundred or a thousand times more intense than penetration!
It felt as if every sensitive nerve ending was being massaged and sucked by countless soft little hands at the same time!
Especially the crown trough!
The feeling of being tightly gripped and sucked by those narrow, fleshy rings!
It felt so good it made my scalp tingle!
All I could see were exploding sparks!
My lower back is sore and numb!
I almost surrendered on the spot!
This blasphemous and possessive invasion, penetrating deep into the very heart of life, brought an unparalleled thrill of conquest! Damn it! I've fucked my mother's womb again!
"Waaah...waaah..." Mom collapsed in my arms, her body still convulsing uncontrollably, tears streaming down her face, her eyes unfocused, completely overwhelmed by this indescribable pain mixed with overwhelming pleasure!
The aftershocks of the climax were still impacting the mother's nerves, and the foreign sensation deep inside her uterus made her feel weak all over.
But I could feel that the extremely tight and sucking uterine cavity walls, after the pain was slightly relieved, began to instinctively and even more greedily wriggle, contract, and suck!
It's as if they are actively adapting to and embracing this enormous invader!
I released my hand from pressing on my mother's belly and instead hugged her tightly around the waist, pinning her firmly to my legs.
The mother also released the hand that was pressing on her chest or clitoris, and with trembling hands, she put them together and pressed them with all her might on her slightly bulging lower abdomen—the location of her uterus!
A glint of utter madness flashed in Mom's eyes! It was a surrender to pleasure! A resolute rejection of forbidden indulgence!
She began! With the power of her waist, abdomen, and hips! Actively! Greedily! Using that tight, warm uterine cavity to manipulate! Swallowing and releasing!! My glans, deeply embedded!!
She regarded her own uterus as the most perfect, living, fleshy "sheath"!