Aunt Gyuri’s piss splashed on the tiled bathroom floor and scattered in all directions.

The warmth of the liquid spreading on the floor was felt on Jinwoo's soles.

The pee stream gradually diminished and soon started to flow down Aunt Gyuri’s inner thighs.

Jinwoo slightly lifted his leg and placed his pee-soaked foot on Aunt Gyuri's head, pressing it down gently as if to trample her.

Aunt Gyuri, who had been supporting herself with her arms in a prone position, slowly lowered her head along with her upper body.

"Ha-a-at"

Aunt Gyuri held her body tense at a point where her face almost touched the tiled floor.

Taaak!

Jinwoo suddenly yanked the leash he was holding as if flicking it in the air.

Aunt Gyuri immediately let go of the strength she had been holding and laid her face on the floor by herself.

Aunt Gyuri’s hair and cheeks touched the pee-soaked tiled floor as if she were collapsing.

An indescribable sense of conquest and a thrilling pleasure seemed to penetrate Jinwoo's spine and spread throughout his body.

Jinwoo turned on the shower and sprayed Aunt Gyuri.

The bodily fluids Aunt Gyuri had been secreting for hours during her climaxes were washed away along with the pee on the floor.

Aunt Gyuri, soaked like a beast, panted and lay sprawled helplessly while being leashed.

Jinwoo flipped Aunt Gyuri over on the floor.

He raised her knees, spread her legs, and then leaned his face in between.

Jinwoo pushed his tongue straight into the slit of Aunt Gyuri who had just finished urinating.

The vibration of the rotor and the salty taste of her vaginal flesh were transmitted to Jinwoo's tongue and lips.

"Slurp slurp chop chop"

Jinwoo’s tongue wiggled around, parting the flesh.

"Hmm"

Aunt Gyuri let out a moan as if responding to the newly added brilliant stimulation. She reached another climax quickly from Jinwoo's tongue and the rotor’s stimulation.

The spasms of pleasure she might have experienced dozens of times while being tied up.

"Ha-a-ak Ha-a-h Hmmm"

Aunt Gyuri repeatedly tightened and loosened her legs around Jinwoo's head, accepting the reward from Jinwoo whom she probably thought of as her son.

**

The rotor continued to vibrate even after the climax.

"Hu-u-u-u Ha-a-a"

Aunt Gyuri, as if exhausted, let her body go limp and took deep breaths as if resisting the stimulation.

Jinwoo brought a towel and carefully wiped the moisture off Aunt Gyuri’s body, who was lying on the floor.

Aunt Gyuri twitched and grimaced every time the dry towel brushed her nipples while wiping her chest.

Jinwoo carefully removed the moisture from the lower slit and thigh area that were wet with saliva and secretions.

Jinwoo bent Aunt Gyuri’s knees again, made her put her arms on the floor, and lifted her buttocks to make her kneel like a dog.

This time, he wiped the moisture from Aunt Gyuri’s back and buttocks.

As he touched her smooth back and slender waist, Aunt Gyuri twitched slightly as she felt his touch on her buttocks.

Aunt Gyuri’s buttocks were swollen red from how much she had been hit before Jinwoo, and even being touched seemed painful.

Jinwoo used his fingers to slowly scratch down Aunt Gyuri’s swollen buttocks.

"Aah Ahng Huut Huum"

Four clear white marks appeared on her red swollen buttocks, simultaneously making Aunt Gyuri moan.

Jinwoo wrote large letters on both of Aunt Gyuri’s buttocks.

'Female Slave'

'Whore Park Gyuri'

The scornful titles and name were slowly etched on her buttocks.

"Huum"

Aunt Gyuri’s head dropped downward as if she had realized something, letting out a sob-like breath.

**

Jinwoo grabbed Aunt Gyuri’s leash and returned to the living room.

It was time to put Aunt Gyuri back in her place after a brief walk.

Jinwoo placed Aunt Gyuri on the sofa and handcuffed her hands.

Strangely, Aunt Gyuri followed Jinwoo’s touch submissively without any resistance.

Jinwoo picked up the rope placed next to the sofa.

A special rope made of materials that wouldn’t cause injury, designed specifically for SM.

Jinwoo, holding the rope in his hand, seemed at a loss as to what to do.

"How do we do it this time? Uh...maybe the prone cat position? It was a position you liked before, wasn’t it?"

Aunt Gyuri asked for Jinwoo’s opinion on the position first, as he hesitated.

The position Aunt Gyuri mentioned was one that Jinwoo knew.

It was one of the yoga positions Aunt Gyuri had shown at Jinwoo’s request not long ago.

Jinwoo's cheeks flushed with the feeling of having his inner thoughts revealed.

Moreover, the strange feeling of jealousy surged up when she said that Daeho also liked that position.

"To do that, I think you should kneel me down, make me lie prone, then put the handcuffed hands between my legs and tie them together."

Aunt Gyuri explained in detail the position and the tying method she would be in.

Jinwoo tapped Aunt Gyuri’s buttocks and made her kneel on the sofa to create the prone cat position as she said.

Then he placed Aunt Gyuri’s handcuffed hands between her legs and pushed her forward to make her lie prone. Her head, turned towards Jinwoo, fell onto the sofa.

Aunt Gyuri, in a more seductive cat-like position than he had seen before, under Jinwoo’s hand.

Between her raised buttocks, the plump, pink, wet vaginal flesh tempted Jinwoo, opening and closing.

Jinwoo pressed Aunt Gyuri’s upper body down, pulled her handcuffed hands back around her knees, and tied them with the rope.

Despite the clumsy knots, Jinwoo did his best, sweating as he tied her up.

The excitement of being able to simply bind and incapacitate a mature woman he had known for a long time with just a rope thrilled Jinwoo.

Aunt Gyuri wiggled her body as if checking the knots tied on her.

"Yes... it seems completely tied. I can’t untie it myself now."

Aunt Gyuri spoke as if approving of his hard work. 

Upon hearing that, Jinwoo felt as if he had received permission for all the perverted acts to come.

Jinwoo immediately inserted his middle finger into Aunt Gyuri’s hole.

Jigeok!

Aunt Gyuri’s love juices wrapped around Jinwoo’s finger.

"Huum!"

Aunt Gyuri let out a sound, seemingly surprised by Jinwoo’s sudden action.

Even in the seductive cat-like position with her buttocks raised, Aunt Gyuri could do nothing but accept Jinwoo was thrusting his finger inside Aunt’s pussy while she was bound.

Jinwoo's excitement reached its peak as he watched the scene unfold right in front of him.

His cock already swollen to the limit started throbbing painfully.

"We still have two hours until the end of class, right?"

Aunt Gyuri asked, seemingly unconcerned with Jinwoo’s finger moving back and forth inside her.

squish…squish…squish…squish

Jinwoo answered without words, only his fingers noisily scraping her vaginal walls.

"Huum~ But Daeho didn’t really like this position...he said he couldn’t see my facial expression. Well...Huum...You liked this, didn’t you? Right? Haauk"

Aunt Gyuri suddenly made a shocking confession as if passing by.

Jinwoo’s mind went blank for a moment. He didn’t believe his ears, wondering if he had heard Aunt Gyuri wrong.

Aunt Gyuri was speaking as if the man in front of her, who was ravaging her, wasn’t her son.

Jinwoo’s fingers, which had been wriggling inside her pussy, froze like a statue as if time had stopped.

Aunt Gyuri’s slightly visible lips slowly curled upwards. She probably already knew everything.

Jinwoo’s cock, steeped in shame, hardened as if he would penetrate Aunt Gyuri violently at any moment.

"You bitch..."

Jinwoo muttered his furious curse with a savage tone.

**

Chiiik!

Jinwoo tore off the bothersome rotor attached to Aunt Gyuri’s clitoris.

"Aah!"

Aunt Gyuri’s body violently twitched as the skin tape stuck to the sensitive spot was suddenly ripped off.

Ignoring her, Jinwoo pulled Aunt Gyuri’s ass towards him roughly and prepared to thrust his cock.

Jinwoo pushed the glans of his cock into the parted slit.

Sughuck!

Jinwoo Thrust his cock inside her cave with all his might, hitting the base of her pussy in one go, a third of his cock still outside.

"Haauk!"

Aunt Gyuri’s suppressed scream-like moan leaked out from her mouth.

Thud! Thud! Thud! Thud! Thud!

Jinwoo grabbed Aunt Gyuri’s slender waist and began thrusting mercilessly, kissing the opening to her most sacred place.

"Haak Haak Ha-a! Ji...Jinwoo...Hoo Huum"

Aunt Gyuri’s moans filled Daeho’s house as she had no choice but to accept Jinwoo’s violent thrusts while bound in the cat position.