Jinwoo approached Aunt Gyuri, who was tied up naked.

Her voluptuous and full breasts were shaking with every twist of her body.

Jinwoo's hefty cock got harder and harder as he watched Aunt Gyuri's body, unable to tell if she was holding back her urge to pee or enduring the passion.

Sure enough, just like Daeho said, it seemed Aunt Gyuri enjoyed this kind of degradation.

The humiliating position Aunt Gyuri was in, tied up as she was, couldn't have been achieved without her cooperation.

Even for a man, it wouldn’t have been easy for someone like Daeho, who was just a mid-level academy student, to completely subdue a mature woman like Aunt Gyuri with strength alone.

But even so, was it really acceptable for Jinwoo to treat Aunt Gyuri like a slave and have sex with her as if he were forcing her?

Aunt Gyuri, lying there tightly bound with ropes, looked like she had been denied her existence as a human being.

Her anal opening, slick with vaginal fluids and twitching, was exposed right in front of Jinwoo's eyes.

What in the world could be so important about that worthless piece of paper with no legal force that made Daeho treat his mother this way?

Jinwoo hadn’t always avoided coercive or forceful actions with other women in his past relationships.

But those were always acts of perversion carried out to test the other person's will...

Or deviant acts performed in a state of mutual understanding, sure that the other wouldn’t refuse.

-Except maybe for what he did to sleeping Minji-

What Jinwoo was about to do now was to treat Aunt Gyuri like a real slave and use her as an object.

No matter what kind of person Aunt Gyuri was, it was not safe to deliberately skip the process of asking for her will or true feelings.

Reality seemed to have escaped out the open front door.

Jinwoo's huge cock started throbbing as if anticipating the coming moment between him and Aunt Gyuri.

**

Jinwoo grabbed the dildo stuck in Aunt Gyuri's pussy.

The dildo was held in place between her legs with a net like a stocking.

Jinwoo moved the dildo up and down after slightly pulling the net to the side.

The dildo, which had been tightly gripped by her pussy flesh, moved heavily in Jinwoo's hand.

-Creak! Creak! Creak!

"Uuh... Uuuh... Haah!"

Aunt Gyuri's moans leaked out cautiously, suppressed so as not to be heard outside the front door.

"Dae... Daeho, mom really thinks she's at her limit now. Uuh... Uuh... O... Okay, can you let me go to the bathroom first?"

Aunt Gyuri's voice sounded like she was about to cry.

Jinwoo forcefully shoved the dildo deep inside and then pulled it out.

"Haaaah!"

Aunt Gyuri's love juices, heavily coating the end of the dildo, melted down.

Meanwhile, the rotor on her clitoris kept vibrating non-stop.

Jinwoo brought the dildo to Aunt Gyuri's mouth.

When the dildo that had just been inside her pussy, still warm and coated with her fluids, touched her lips, Aunt Gyuri flinched and recoiled.

The love juices spread like a coating on Aunt Gyuri's lips from the dildo.

"Please~ I've been doing everything as told. Haah... Can't you forgive me now?~ What happened yesterday was because dad made me do it. Huuuh..."

Aunt Gyuri mumbled, trying to make excuses with her wet lips smacking.

Aunt Gyuri, moving her body, begged her son again, almost as if praying.

Jinwoo's sadistic instincts surged uncontrollably as he watched Aunt Gyuri, who was pleading for forgiveness for reasons he didn’t fully understand.

Jinwoo swung the dildo in the air and struck Aunt Gyuri's cheek.

-Smack!

The soft material of the dildo lightly stuck to Aunt Gyuri's cheek.

"Haaah!"

Although the hit wasn’t very strong, it was enough to fluster Aunt Gyuri.

-Smack!

Jinwoo struck the other cheek.

"Uuuh..."

Aunt Gyuri let out a groan, feeling humiliation and shame.

The kind and gentle Aunt Gyuri he had known since childhood.

He knew she treated him with much more care than Daeho's other friends because she was his mom’s best friend.

And now, Jinwoo was doing the crazy act of hitting that same Aunt Gyuri’s cheek with a dildo soaked in her love juices.

A strange thrill spread throughout Jinwoo’s body from deep inside his chest.

It was a different kind of pleasure and excitement from when he slapped her butt or shoved his penis down her throat before.

The figure in front of Jinwoo’s eyes was no longer his friend’s mom and his mom’s best friend, Aunt Gyuri.

She was just a female slave named Gyuri, bound by a slave contract to someone.

**

Jinwoo inserted the dildo back into Aunt Gyuri's crack.

-Squelch squelch squelch!

He started moving the dildo, warming up her small pussy for his huge member.

"Haaah haaah haaang"

Aunt Gyuri gasped, losing her breath.

Jinwoo immediately pulled out the dildo from Aunt Gyuri’s cave.

Her sticky love juices clung thickly to the dildo again.

Jinwoo licked the juices on the dildo.

He decided to do another crazy act.

He spread Aunt Gyuri’s love juices evenly over his penis.

Then, grabbing the base of his dick with one hand, he swung it towards Aunt Gyuri’s butt.

-Smash!

The dull sound of flesh hitting flesh echoed in Daeho's living room.

-Smash! Smash!

Jinwoo slapped Aunt Gyuri’s cheeks with his wet cock several more times.

"Uuuh... Uuh..."

In the moment of humiliation, Aunt Gyuri’s body shook violently.

Did she think her son was still hitting her cheeks with a dildo?

Jinwoo felt himself getting more uncontrollably excited, imagining Aunt Gyuri’s feelings.

**

Jinwoo untied the ropes wrapped around Aunt Gyuri's legs.

Her legs, which had been bent, stretched out slowly as if they were numb.

Jinwoo unlocked the handcuffs binding Aunt Gyuri’s hands with the key he got from Daeho.

Then, he removed the headphones that were blocking external sounds.

Now, Aunt Gyuri, with some freedom to move and feel, raised her hands to remove the blindfold.

-Slap!

Jinwoo smacked the back of Aunt Gyuri’s hand with his palm.

Aunt Gyuri recoiled again.

Understanding Jinwoo’s rules, she lowered her hands.

Jinwoo grabbed the red collar around Aunt Gyuri's neck and pulled hard.

Aunt Gyuri, who had been leaning against the sofa backrest, fell forward slightly, landing on her hands and knees on the living room floor.

Jinwoo tugged the leash silently, as if training a dog.

"Uuh... Uuh..."

Aunt Gyuri groaned, seeming exhausted from the humiliation, but she quickly adapted and started crawling on all fours.

Jinwoo led Aunt Gyuri to the bathroom, feeling like he was walking a dog.

-An act he wished he could make his mother do someday-

Upon reaching the bathroom, Aunt Gyuri immediately tried to sit on the toilet.

-Slap!

Aunt Gyuri felt a burning pain as Jinwoo unexpectedly struck her butt.

"Haaah! Uuuh..."

Unable to bear the pain, Aunt Gyuri collapsed to the floor in a convulsion.

Jinwoo gently caressed Aunt Gyuri's butt, soothing her.

Aunt Gyuri’s trembling gradually subsided under Jinwoo's touch.

Jinwoo got Aunt Gyuri back on all fours.

With the bathroom door open, he led her near the bathtub.

He placed one of her legs on the bathtub edge.

Aunt Gyuri, now on one knee and both hands on the floor, with one leg hooked over the bathtub edge, looked like a dog about to pee.

Jinwoo patted Aunt Gyuri’s butt.

Aunt Gyuri seemed to understand exactly what Jinwoo wanted her to do.

The urge to pee at its limit.

Holding it in was her last act of dignity as a mother.

Aunt Gyuri’s body shook.

-Pssshhhh

Finally, clear and transparent yellow liquid poured out from Aunt Gyuri’s lower opening.

Unable to hold back her urge to pee, Aunt Gyuri began to release it all, letting go of her last shred of dignity as a mother.

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