Chapter Index

    Sohee came out of the changing room after changing her underwear.

    Then she slowly approached Jinwoo.

    The sleeves of the cardigan tied around her waist were wet.

    -Looks like she wiped off the dripping love juices with the sleeve of her cardigan-Jinwoo deliberately reached out and pulled on the sleeve of the cardigan tied in front of Sohee’s waist.

    -Sohee slightly pulled toward Jinwoo-

    Jinwoo firmly grabbed the sleeve of Sohee’s cardigan in his hand.

    The love juices of Sohee, wrung from the damp sleeve of the cardigan, soaked Jinwoo’s hand.

    Jinwoo licked his fingers stained with Sohee’s fluid, tasting it in front of his lips.

    The slightly sour and tingling taste of Sohee’s delightful body fluid.

    -Seems like Jinwoo doesn’t care about the looks of others inside the store-Sohee blushed and trembled slightly, looking down, as if her private parts were touched, and said.

    “You’ve been a pervert for a long time, haven’t you~~!?”

    Jinwoo, finding Sohee too adorable, wrapped his arms around her excitedly.

    Jinwoo’s massive and hard cock pressed strongly against Sohee’s belly and groin.

    Sohee’s large breasts and erect nipples were also pressed and squished against Jinwoo’s chest and stomach.

    The soft flesh of Sohee created a tingling pleasure as it pressed against Jinwoo’s body.

    Sohee clung to Jinwoo, whining and mumbling something to herself before soon quieting down, letting Jinwoo do as he pleased.

    **

    Sohee, looking embarrassed, briefly checked her surroundings.

    And she quickly stuffed the wet panties she had just taken off into Jinwoo’s shopping bag.

    Sohee, handing over a shameful secret to her younger brother, hiding it inside his shopping bag.

    Jinwoo looked at Sohee and smiled contentedly.

    “Is it sorted?”

    Jinwoo asked Sohee, implying several meanings.

    Sohee stood blankly for a while, then barely nodded as if agreeing.

    “Then let’s get out of here.”

    Jinwoo wrapped his arm around Sohee’s shoulder and left the store in high spirits.

    Sohee was in the crimson leopard print panties Jinwoo had picked out.

    While attached to Jinwoo, the naughty crimson leopard print thong panties would again be soaked without drying from the erotic juice flowing from Sohee’s body.

    Jinwoo’s arm, which was hugging Sohee, gradually moved from her arm to around her waist.

    Whenever Jinwoo’s hand moved up and down from Sohee’s waist, she shivered and trembled.

    Spending the whole day in contact with Jinwoo seemed to have marinated Sohee in excitement, making her body loosely responsive to even the slightest stimuli.

    “Ah, seriously~!! There’s no end to this, you fool!”

    Sohee leaned her body fully against Jinwoo’s, sighing heavily from time to time with a mix of dissatisfaction and pity.

    **

    “Sohee!! Before we go home, let’s stop by one more place.”

    Jinwoo spoke to Sohee as if he had just thought of something.

    “Where to now?”

    Sohee asked Jinwoo with a weary look in her eyes.

    “Just come and see~~”

    Jinwoo responded cheerfully, making Sohee agree without further questions, following where he led.

    They arrived at the pet supplies store they had visited with their family the day before.

    And he walked straight to the booth where he had seen a dog collar yesterday.

    -The red leather dog collar with a bell that he would give to Mom-Jinwoo picked up the red dog collar displayed there.

    “Which leash would be good?”

    Jinwoo asked Sohee without any explanation.

    “Are you buying that? Mom said it’s okay to bring Sua’s puppy home and raise it?”

    Sohee recalled the conversation about Sua’s puppy that Minji had brought up during dinner yesterday and asked Jinwoo.

    “It’s not Sua’s puppy… If Mom says it’s okay, we might be able to keep one at home…”

    Jinwoo answered Sohee’s question, imagining himself kneeling and strapping the dog collar and leash around Mom as she crouched forward.

    “Buying that without permission?”

    Sohee asked Jinwoo, seeming puzzled.

    “Yeah… I haven’t got permission yet. I need to talk to Mom separately, but if I ask, she’ll probably just let it slide like she allowed you to wear that kind of clothes.”

    Jinwoo played the role of a son blackmailing his mom using the disclosure as an excuse, demanding to put the collar on her.

    “Then, matching the color, a red leather leash would be good, wouldn’t it? How about this one?”

    Sohee, picking a leash from the display that would match the collar, pointed at one.

    “You really have good taste, noona~~”

    Jinwoo said, stroking Sohee’s head.

    “..Really?”

    Sohee blushed at Jinwoo’s words and actions, feeling an inexplicable sense of alienation as she nodded in acknowledgment.

    Jinwoo carried the red leather dog collar and the red leather leash chosen by Sohee to the counter.

    And in front of Sohee, he pulled out Mom’s card to purchase the collar.

    Jinwoo packed the dog collar and leash into the shopping bag hanging on his arm.

    Since the collar and leash were purchased with Mom’s card, the name of the pet supplies store would have appeared in a text message to Mom, though no contact from her had followed.

    If Mom had seen the text message from the store they visited yesterday, she would have guessed that the items Jinwoo just bought were the dog collars intended for her.

    What Jinwoo would want from Mom when she returned home…

    The humiliation and embarrassment Mom would feel…

    Jinwoo decided to leave Mom’s feelings and reactions unchecked.

    As if a secret play between them had just begun anew…

    **

    The returning subway train was crowded with many people.

    Jinwoo naturally stood close behind Sohee, pressing against her.

    And with the swaying of the train, he rubbed his body against her.

    Jinwoo’s erect cock pressed against Sohee’s ass.

    Jinwoo positioned his cock precisely between Sohee’s ass cheeks to gain stimulation.

    Jinwoo placed his hand on Sohee’s waist to prevent her from falling or escaping.

    Sohee did not try to resist or avoid Jinwoo’s actions.

    Since the time Mom took Minji to their aunt’s house…

    Perhaps from the moment she sensed the strange sexual atmosphere between Jinwoo and Mom the previous evening…

    She might have already anticipated such situations.

    She had a vague idea—almost certain now—of the secret relationship, attitudes, and emotions between Mom and Jinwoo…

    And she would internalize and reenact them through the special day spent with Jinwoo…

    **

    Jinwoo began to write letters on Sohee’s back over her clothes, just as he had done with Mom yesterday.

    ‘B S’

    ‘S H Y’

    The English initials of Sinbi noona and Sohee.

    Jinwoo added the spelling of ‘S E X’ and carefully engraved each character on Sohee’s back.

    Startled, Sohee jerked her body momentarily.

    Jinwoo continued with the finger letters.

    ‘D I E T ?’

    Jinwoo didn’t want to hear Sohee’s answer right away.

    But he playfully listed the secretive words he had discovered, teasing and flustering Sohee with the last question mark.

    Sohee stood motionlessly, occasionally shivering.

    Her trembling was transmitted directly to Jinwoo’s body.

    After a while, Sohee slightly bent her body as if her legs were in pain, rubbing her knees and thighs.

    Then, using the cardigan sleeve tied around her waist, she subtly wiped the moisture running down her thighs.

    As the train neared their home, Sohee’s trembling and the frequency of her bending over increased.

    **

    When the train emptied and more space became available, Sohee loosened Jinwoo’s hand from her waist and distanced herself from him.

    Looking elsewhere as if ignoring Jinwoo, she stood deep in thought.

    Was it Jinwoo’s provocative skinship and secretive words that confused Sohee?

    After arriving at the subway station near their home and walking towards their house, there was almost no conversation between Jinwoo and Sohee.

    Familiar buildings and roads—reminding them of reality—entered their view, adding to the awkwardness.

    The sky was gradually darkening.

    The surrounding air was getting colder.

    But even as they walked apart, distancing themselves…

    Despite feeling the awkwardness between them…

    The poignant excitement and warmth being transmitted between them heated up their bodies so much that they hardly noticed the cold night air.

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