Chapter Index

    501

    Seyoung’s soft inner flesh was constantly biting at Siwoo’s penis.

    Seyoung’s lubricant, flowing between the valleys, flowed down Siwoo’s scrotum and wet Siwoo’s thighs.

    The sensation of Seyoung’s refreshing and fresh vaginal fluid, flowing down his penis, scrotum, and thighs, permeated Siwoo’s skin and deeply saturated Siwoo’s senses, as if dyeing them with color.

    The ecstatic and dreamy pleasure gradually deepened, slowly overwhelming all of Siwoo’s senses of pleasure.

    Siwoo turned his gaze toward where his mother was lying and looked down at her naked figure.

    His mother, as if turning away from the bewildering reality, had her eyes tightly shut, was trembling while catching her breath.

    Suddenly, Siwoo felt like he had to show his mother his first insertion sex with Seyoung.

    If he were to show his mother directly the scene of him inserting into Seyoung, in the position he took when moving the sleeping Seyoung to her room…

    With just that thought, Siwoo’s penis was reacting violently and swelling inside Seyoung’s vaginal opening.

    Siwoo plunged his penis deeper into Seyoung’s hole.

    Thwack thwack thwack!

    Siwoo was trying to cram his penis all the way to the root into Seyoung’s small vaginal opening, which normally wouldn’t even go in halfway.

    “Hmm haa hmm haa…”

    Seyoung, clinging to Siwoo and suspended in the air, seemed distressed as she squeezed her thighs, tightening Siwoo’s arms and waist.

    The sound of his penis plunging into Seyoung’s vaginal opening and her moans must have been audible to his mother as well.

    However, whenever his mother heard the sounds of Siwoo and Seyoung engaging in intercourse, she would only flinch and tremble, without opening her eyes or taking any other action.

    Siwoo found his mother’s appearance hypocritical, but on the other hand, he also felt a sense of pity and compassion.

    While facing and embracing Seyoung in an inserted state, Siwoo slightly twisted his body toward his mother’s head, making the insertion area face directly toward his mother.

    “Mom!”

    In that state, Siwoo called out to his mother in a loud voice.

    As if trying to wake her by calling her “Mom” instead of her name, Sunmi…

    His mother moved her body slightly while lying down, but did not open her eyes or show any other special reaction.

    “Mom! Open your eyes and get up! I’m going to take Seyoung back now~!”

    Siwoo called out to his mother in a loud voice, as if trying to get her attention.

    “Huh…uh?…”

    Then, his mother wriggled her body, opened her eyes hazily as if waking up from sleep, and got up from her spot.

    “I’m going to take Seyoung to her room now!”

    Siwoo was speaking while spreading Seyoung’s legs to the side in front of his mother, so that the penis inserted into Seyoung’s body was clearly visible to her.

    “Oh… really?”

    His mother covered her private parts with her arms and legs, raised her upper body, and stared at Siwoo, who was embracing Seyoung head-on, with a flustered look.

    The scene of Siwoo’s thick fleshy pillar, more than halfway buried inside Seyoung’s body, who was naked and held in Siwoo’s arms, unfolded before his mother’s eyes.

    “If I take Seyoung to her room and put her to sleep now, it will probably take about 20 or 30 minutes! Can you wait until then?”

    Siwoo spoke as if asking for his mother’s understanding, hinting at the sex he would have alone with Seyoung in Seyoung’s room.

    Thwack thwack thwack thwack thwack!

    At the same time, Siwoo lifted Seyoung’s body up and slammed it down, pushing the inserted penis even deeper into Seyoung’s body.

    “Haa…haat…haa…haaaa…hmph…”

    Seyoung wrapped her arms around Siwoo’s neck, arched her back, and tensed her body.

    Her trembling and tightening, as she struggled to suppress her moans, were conveyed to Siwoo as pleasant stimulation.

    Siwoo was now cramming raw meat into Seyoung without using a condom.

    “O…okay…go…go now?”

    His mother watched Seyoung, who was being pierced through the center while held in her son’s arms, and answered Siwoo, stammering with a bewildered expression.

    “I’m going to Seyoung’s room to put her to sleep now, so it might be loud, but is that okay?! When Seyoung is completely asleep, I’ll take her to the second floor and come right back down!”

    Siwoo was calmly explaining the situation he was in control of and what would happen in the future, speaking in a tone as if he was enjoying it.

    “Ugh…um…p-please…”

    His mother lowered her head like a criminal and conveyed a request to Siwoo in a flushed voice.

    The subject of what she was asking for was not clear, but Siwoo seemed to be able to fully guess his mother’s emotional state and inner desires.

    Siwoo’s penis swelled up again inside Seyoung’s body.

    Almost simultaneously, Seyoung’s vaginal opening tightened strongly around Siwoo’s penis.

    Was Seyoung also excited like Siwoo, after hearing his mother’s request to her brother, who was fitting his genitals into her body?

    Siwoo grabbed Seyoung’s buttocks, which he had been supporting with his hands, and moved his hips as if lifting her body up and down slightly.

    Squish squish squish! Squish squish!

    Siwoo’s penis plunged into Seyoung’s hole, and lewd friction sounds were heard from the two siblings’ groins.

    His mother didn’t know what to do and had her head lowered, looking around.

    “Mom! Can you pick up my smartphone over there?”

    Siwoo pointed to his smartphone, which was placed on the pillow next to his head, and spoke to his mother, who was avoiding his gaze.

    He was still using the title “Mom” instead of her name, as if trying to imprint a humiliating feeling on her.

    His mother glanced up at Siwoo, and then quickly blushed as if startled and lowered her head again.

    With her head bowed deeply, his mother picked up Siwoo’s smartphone and laboriously held it out toward Siwoo.

    “It’s hard for me to receive it because I’m holding Seyoung right now, so can you put the smartphone in my hand?”

    Siwoo could have easily reached out his arm even while supporting Seyoung’s buttocks with one arm, but he deliberately asked his mother to put the smartphone in his hand.

    “Oh…th-that’s okay…”

    His mother glanced at Seyoung’s buttocks, which Siwoo was holding up with his hand, and replied.

    Siwoo supported one of Seyoung’s buttocks with his wrist, then bent his hand slightly and stretched it forward.

    As if asking her to place the smartphone she was holding on his outstretched palm…

    Soon, his mother reached out her arm and tried to put the smartphone in Siwoo’s palm.

    As soon as he grabbed the smartphone that his mother handed him, Siwoo moved his hips vigorously, as if to show her.

    Squish squish squish squish!

    Siwoo’s heavy penis moved in and out, forcing open the gaps between Seyoung’s crevices.

    His mother held the smartphone in her hand, fixed her gaze on the point of union between Siwoo and Seyoung, and froze as if her body had become stiff.

    “Hmph….haaaa….haat…haaaa…!”

    Seyoung, not expecting Siwoo’s actions that suddenly took place while receiving the smartphone from his mother, let out a bewildered moan.

    “Thank you, Mom~ I’ll leave the door open…”

    Siwoo stopped the pounding he was doing to Seyoung, turned his head, and spoke to his mother, who was turning away from Siwoo and Seyoung’s act.

    Siwoo, with his penis inserted into Seyoung, finished the conversation with his mother as a son.

    Feeling satisfied, Siwoo embraced Seyoung as she was and left the bedroom.

    His mother, not as Siwoo’s slave or wife, but as his mother, now had no intention of stopping or interfering with Siwoo and Seyoung’s actions.

    As he had told his mother, he left the room door open.

    Before leaving the room, he glanced back and saw his mother’s figure, resting her arm on the bed mattress and lowering her head.

    Her appearance, whether she had given up or was lost in agony…

    In her state, which seemed so pathetic and miserable, as if she had lost her qualifications as a mother in either case, a strange emotion welled up in Siwoo’s heart.

    Siwoo’s penis was wriggling again inside Seyoung’s body.

    **

    Siwoo, embracing Seyoung, came out to the living room.

    The soft and slippery sensation of Seyoung’s vaginal opening, which was wrapped around Siwoo’s penis, was felt as if it was melting through Siwoo’s penis skin.

    However, for some reason, Siwoo felt an emotional feeling that was not much different from taking Seyoung to her room normally, apart from the dizzyingly melting sensation of his penis.

    Was it because he had just had a conversation with his mother as a son and mother in the bedroom?

    Siwoo was feeling a disturbed and bizarre feeling, as if everyday life and the extraordinary were mixed together.

    Siwoo stopped by the living room for a moment before going to Seyoung’s room.

    Siwoo walked toward the place where the sofa was placed in front of the TV.

    Siwoo leaned back on the sofa while embracing Seyoung.

    Seyoung was in a position as if she was riding on Siwoo’s pelvis, leaning against the sofa.

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