Chapter 300 (Mom, Seon-ju, Se-hee, Se-young)
Translator: RaidenTL
Chapter 300 (Mom, Seon-ju, Se-hee, Se-young)

Si-woo and Se-young opened the front door of Aunt Seon-ju’s house and stepped inside.
As soon as they entered the foyer, they saw a large iron cage in the corner of the living room. Several puppies and their mother were playing around it.
Hearing Si-woo and Se-young enter, the puppies suddenly swarmed them, sniffing curiously. They clung to Se-young, their tails wagging busily.
Se-young seemed used to it, calling each one by name as she stroked their heads.
The mother dog stood behind her litter, watching Si-woo warily. She was a tall, slender dog that carried the elegant air of Egyptian royalty. The puppies appeared to be a cross between her and the Great Dane out in the yard.
Though he had seen them a few times before, the puppies still seemed awkward around Si-woo.
* * *
"Aunt Seon-ju! We’re here!"
Si-woo called out toward the interior of the house, looking for his aunt.
Hearing the frantic movement of the dogs and Si-woo’s voice, Aunt Seon-ju walked out from the direction of Su-a’s room.
"Welcome! Si-woo, Se-young!"
Aunt Seon-ju greeted them with a languid expression and voice, looking as if she had only recently woken up.
Her wavy hair was disheveled, and she wore an apricot-colored slip made of silk. The shimmering fabric, held up by thin shoulder straps, clung to her breasts, torso, hips, and thighs. It was a tight-fitting home slip that left her shoulders and cleavage fully exposed, along with more than half of her thighs.
Se-young, who had been petting the dogs, immediately kicked off her shoes and ran to her as soon as she saw her.
"Aunt Seon-ju!"
Se-young threw her arms around the woman’s slender waist, burying her face in Seon-ju’s voluptuous breasts.
Aunt Seon-ju pulled Se-young into a warm embrace.
Watching Se-young’s aggressive dash, Si-woo reflexively recalled the sensation of her soft flesh pressing against his cock earlier.
Had Aunt Seon-ju noticed Se-young’s white skin through the gaps in her revealing light-blue denim dress?
She looked down at Se-young in her arms with a warm smile, but then she seemed to react with a brief start. Keeping Se-young in her embrace, Aunt Seon-ju looked up at where Si-woo was standing.
Only after seeing Si-woo covering his front with his crossbody bag did Aunt Seon-ju flash a suggestive smile, as if she understood everything.
"Se-young, your outfit is so pretty! The weather’s gotten quite cool, hasn't it?"
Aunt Seon-ju placed a hand over Se-young’s bottom and patted it audibly, as if showing off for Si-woo, while she spoke.
"Hehe, isn't it? I like it too!"
Se-young seemed to enjoy the hug and the patting, rubbing her face against Seon-ju’s breasts like a spoiled child.
"Our Se-young... did anything happen on the way here?"
Aunt Seon-ju looked at Si-woo, her tone full of mischief.
"Wh-what do you mean, 'anything happen'? It doesn't take that long to get here from our house!"
Si-woo answered quickly, fearing Se-young might say something reckless now that the point had been hit home.
"...Anyway, is Su-a still getting ready? I texted her that we were coming!"
Si-woo spoke with a hint of irritation, trying to change the subject.
"She’s getting ready now. She’ll be out soon. While you wait, Si-woo, would you like something to drink?"
Aunt Seon-ju loosened her hold on Se-young and offered a drink, seemingly trying to soothe his irritation.
"Yeah! We’ll have a drink while we wait! Hehe."
Se-young answered for him, as if trying to smooth over the situation.
* * *
"But why is that dog outside kept separate like that?"
Sitting at the dining table, Si-woo asked Aunt Seon-ju as she poured him a glass of Coke.
"Oh, you mean Ben? He’s a bit too active. I didn't think I could control him if I kept him inside, so I moved him out for a bit. Especially since the puppies are here... Tee-hee!"
Aunt Seon-ju gave an inexplicable giggle as she explained why the dog was tied up in the yard.
Si-woo watched the puppies playing energetically in the living room and took a sip of his drink, looking slightly puzzled.
Then, a memory flashed through his mind—the scene in his home's changing room where the puppy Se-young brought over had licked Su-a’s pussy.
He also remembered what Se-young had whispered to him before: that if they didn't find homes for the puppies soon, they might start inbreeding among themselves.
A look of slight flustered confusion crossed Si-woo’s face.
Aunt Seon-ju chuckled at his expression and leaned in, pressing her lips close to his ear.
"The puppies' father is just as vigorous as the Master... I simply can't handle him. Tee-hee."
She whispered low into his ear, laughing playfully.
In that instant, Si-woo’s cock throbbed, the veins feeling as if they might burst. His penis expanded violently, radiating an intense desire as if it were ready to tear through his clothes to find a hole to bury itself in.
* * *
Ding!
Just then, a message notification chimed on Si-woo’s smartphone.
It was a text from Se-jin Noona.
Si-woo had handed her a condom filled with his semen and ordered her to make their Mom drink it. He had also commanded Se-jin Noona to film everything—from the moment he handed her the condom to the moment Mom drank his semen—and send it to him.
The text that just arrived was likely the video file she had recorded.
Si-woo glanced at Se-young sitting next to him and Aunt Seon-ju across the table before tapping the notification.
The chat window with Se-jin Noona opened immediately.
As expected, there was a thumbnail for a video file. It was a provocative image showing Mom and Se-jin Noona in the same frame, looking as if they were about to kiss.
It seemed to be a frame automatically generated when the video was saved and sent.
From Se-young’s innocent act to Aunt Seon-ju’s seductive, sly whispering... and now the thumbnail from Se-jin Noona...
The sudden onslaught of intense stimulation made Si-woo’s breathing grow heavy.
* * *
"Aunt Seon-ju! I’m going to use the bathroom for a second!"
Si-woo stood up and headed for the bathroom to check the video.
Even though he shared a master-slave relationship with Aunt Seon-ju and a secret with Se-young, he didn't feel like playing the video openly in front of them.
Once inside, he locked the door, lowered the toilet seat cover, and sat down.
He turned down the volume and tapped the thumbnail in the chat window.
The video began in Se-jin Noona’s room. It must have been filmed right after they finished their text conversation while he was on his way to Seon-ju’s house.
The video showed Se-jin Noona leaving her room, holding the condom he had given her that morning. Her heavy, nervous breathing was audible throughout the recording.
She hesitated for a moment at the top of the stairs leading to the first floor, then took a deep breath and headed down to where Mom was.
Creak... creak... creak...
The sound of her footsteps on the stairs, which usually went unnoticed, echoed clearly in the video.
Finally, she reached the first-floor living room. Se-jin Noona walked cautiously toward the kitchen.
The camera lens was pointed straight ahead. He could see Mom sitting at the kitchen table, her head bowed.
For a moment, Mom glanced up at the camera, but then she quickly looked down again, appearing embarrassed. Her face was flushed deep red, even more so than before.
As Se-jin Noona approached, Mom’s shoulders trembled, and her breathing became increasingly irregular. The footage was shaking slightly, suggesting that Se-jin Noona was just as nervous.
"Mom..."
Se-jin Noona called out in a low voice as she reached the table.
"Y-yes?"
Mom replied, her voice laced with anxiety.
"Si-woo told me to give this to you..."
Se-jin Noona held out the condom, reminding Mom of the command Si-woo had given.
Her hand entered the frame. The condom, filled with the thick liquid he had ejaculated, swayed as she held it out toward Mom.
"Okay..."
With that brief reply, Mom reached out and took the condom filled with Si-woo’s semen from Se-jin Noona.