Chapter 265
Translator: RaidenTL
Chapter 265

Catching her breath after her climax, Se-hee Noona was still letting her younger sister suckle at her breast.
Even after being pushed over the edge by Si-woo’s fingers, she continued to writhe in a mix of pleasure and agony as Se-young persistently nursed.
As if she were actually awake, Se-young’s mouth remained fixated on Se-hee’s nipple, suckling tenaciously.
Watching Se-hee Noona offer her breast to Se-young made Si-woo’s cock swell even harder.
Si-woo picked up the blanket that had fallen to the floor and draped it over Se-hee and Se-young’s midsections.
The sight of their exposed lower slits and the mounds of flesh above their breasts acted as a powerful stimulant to his impulses.
His cock, now as hard as stone, throbbed with a dull ache, as if protesting and demanding to be let in somewhere.
Si-woo barely managed to suppress the painful urge to shove his penis into the exposed holes of the two women and thrust with all his might.
He intended to direct all of tonight’s resentment and spite toward his mother.
"I’m going downstairs now to sleep with Seon-mi. Don’t be too surprised if things get a little loud down there."
Si-woo spoke his mother’s name casually in front of Se-hee and Se-young.
He announced it as if declaring the start of a lewd night he would spend alone with his mother to her daughters.
"Haah... Haa... Ugh..."
Se-hee Noona let out ragged breaths, her body twisting as if she found it difficult to endure his words.
"Take good care of Se-young, okay?"
Si-woo gave her one last instruction.
"Yes... okay... I will... Hngh..."
Whether she was still dazed from her climax or not, Se-hee answered Si-woo with a mix of formal and informal speech.
After taking one last look at Se-young, who was still suckling at Se-hee’s breast in her sleep, Si-woo left the room.
* * *
Si-woo stepped out into the second-floor corridor after leaving Se-young.
He closed Se-hee’s door and took a deep breath.
Now, he could finally spend a secret night alone with his mother without any further interruptions.
Not as mother and son, but as master and slave...
Just imagining the intense sexual intercourse he was about to have with his mother made Si-woo’s heart race wildly.
Before heading downstairs, Si-woo stepped into his own room to calm his nerves for a moment.
In the darkness of his room, Si-woo sat on the edge of his bed with a full erection.
In his hands, he held Se-young’s panties and his smartphone.
With a slight sense of anticipation, he picked up his phone and unlocked it.
Si-woo opened the 1:1 chat window with his mother to check the status.
The numbers next to the photos and videos he had sent from Se-hee’s room had already disappeared.
His mother had checked the video he sent.
That fact alone made the blood rush to his cock again, making it throb.
Si-woo waited, savoring the moment, giving his mother enough time to slowly process all the photos and videos.
* * *
'Mom.'
After some time had passed, Si-woo sent a text to his mother.
He used the title of a son calling his mother, respectfully...
As if she had been staring at the chat window the entire time, the number next to his message disappeared instantly.
However, even after the number vanished, his mother didn't reply for a while.
'Did you see the photos?'
Si-woo sent another text, checking in cautiously.
The number disappeared immediately again, but his mother remained silent, as if lost in thought.
Was she too embarrassed to talk to Si-woo as mother and son right after having such humiliating sex?
Or was she finally getting angry at him?
The "first time" with Se-young had seemed like the final line.
In reality, he hadn't actually pierced her hymen or inserted his penis into Se-young’s pussy hole.
However, the photo captured a scene where the tip of Si-woo’s glans was being pushed precariously into Se-young’s pussy.
The brother and sister, completely naked, were in a lewd sexual position that looked like something out of a pornographic movie.
Naturally, anyone seeing it would assume Si-woo and Se-young had had sex.
Moreover, it looked as if Si-woo’s bare cock was about to be shoved inside without a condom.
Was his mother despising her son for breaking his promise and trying to force his penis into his young daughter’s vagina?
Was she about to drop the act of their lewd roleplay and prepare to scold him with a straight face?
Si-woo waited for his mother’s reaction with a tense heart.
He prepared an excuse in his head—that he hadn't actually performed vaginal insertion on Se-young yet—just in case she was truly angry.
* * *
In the chat window, the message Si-woo was trying to send was written and deleted several times.
Si-woo stopped his fingers before sending a text to press her for an answer.
His mother was likely agonizing over how to respond to him.
He considered the possibility that too many things had already happened within the family for her to ever reclaim her fallen mother’s authority.
Si-woo decided to wait until his mother started the conversation, no matter what she said.
After a while, a message from his mother finally appeared on the screen.
– What are you planning to do?
His mother spoke to him in a tone that sounded like the start of a lecture.
– About what? lol
Si-woo texted back playfully, as if teasing her.
– Se-young!!
His mother snapped back, as if the answer should be obvious.
– What about Se-young?
Si-woo continued to play dumb.
– How could you do that to Se-young without protection? What if something really happens to her?!
His mother was pointing out the fact that he appeared to be having sex with Se-young without a condom in the photos.
In that moment, Si-woo felt a strange sensation at the fact that his mother seemed only concerned about contraception.
The issue his mother was raising wasn't the fact that Si-woo and Se-young were having sex.
She was taking issue with the fact that Si-woo hadn't used a condom while having sex with Se-young.
Although his mother expressed reluctance about Si-woo having a relationship with Se-young, it seemed she felt she could no longer stop him from having sex with her, even when she wasn't watching.
From the moment he had carried the sleeping Se-young out of the master bedroom, naked and with a rock-hard cock...
No, perhaps even much earlier, from the moment he decided to bring Se-young back home, she might have regarded sexual relations between the two siblings as inevitable.
In his mother’s mind, sex between Si-woo and Se-young must have already been recognized as a foregone conclusion, an event that was bound to happen eventually.
Come to think of it, when Si-woo mentioned going to the department store with just his sisters earlier that day, his mother hadn't bothered to intervene or stop them, despite the predictable outcome.
Perhaps that was the reason?
At that thought, a sense of lustful anticipation and transgressive satisfaction welled up inside Si-woo.
* * *
– I only put the tip in~ lol I didn't actually insert it. I haven't even ejaculated yet because I wanted to give it to Mom.
Si-woo quickly texted his excuse, as if confessing in advance.
– You came so much earlier! What if what's left gets inside Se-young and something happens?!
Despite Si-woo’s confession, his mother still seemed worried about Se-young getting pregnant.
– Mom cleaned it so well with her mouth earlier. If something happens after all that, it’s Mom’s fault! lol
Si-woo responded slyly to his mother’s nagging.
The conversation they were having was no longer a normal one between a mother and son.
They were calling each other "Mom" and "Son," but it was unfiltered dirty talk between two people who had already engaged in a perverted sexual relationship.
His mother was silent again for a moment, perhaps at a loss for words.
– But if I use protection, is it okay to have sex with Se-young? lol
Si-woo continued to tease her, picking up on her earlier words as if talking to himself.
– What are you talking about?!
– How can you even say that?!
– Of course it’s not okay!! Se-young is your sister!
– Have you lost your mind?
A barrage of messages from his mother poured in, as if she were scolding him without hesitation.
Even though she had just been treating Si-woo and Se-young’s sex as a given and only questioned the contraception...
It was as if the woman who had been getting her ass slapped and having a penis shoved between her legs in the master bedroom downstairs had completely vanished.
His mother seemed to be lashing out at Si-woo out of embarrassment for her own subconscious acceptance of his sex with Se-young.
– And why are you sending things like this here?!
Then, his mother pointed out the video Si-woo had sent to the 1:1 chat room, which was supposed to be for maintaining their mother-son relationship, with a stern tone.