Chapter Index

    622

    “Just because some parents or family members have this kind of relationship, doesn’t mean everyone will know or accept it.”

    Sejin leaned on the desk with her arm propped up and continued in a low voice.

    “You, Siwoo, until recently… didn’t know about the relationships Dad and I, and Mom and my aunts had, right?”

    “If you had shown even a little bit that you didn’t want that kind of relationship, you might have lived your whole life without knowing…”

    Sejin wriggled her hips back and forth, with Siwoo’s penis shoved into them, and added.

    “Even if you live without knowing… this applies to your future spouse, the children you may have, and even their families when you get married…”

    “The validity of the marriage contract… even if you have different marital relationships, includes that meaning…”

    “It’s your freedom to consider any relationship as real… you can’t say any of them are false… and that probably goes for the person accepting it too…”

    Sejin continued to explain, as if trying to alleviate the confusion Siwoo was feeling about the marriage contract.

    Siwoo spread his hand wide and grabbed Sejin’s side and stomach all at once.

    Squelch squelch squelch! Slosh!

    Siwoo slowly moved his hips back and forth, organizing Sejin’s story of trying to persuade him in his head as if chewing it over.

    “Haa, haa… haa, haaaa…!”

    Sejin, who had been explaining in a calm voice until just now, moaned.

    The pleasure of enveloping the huge phallus instantly melts away the anxiety and confusion clinging to Siwoo’s chest.

    Her breath was getting hotter, as if it were heating up.

    Sexual relations between relatives… pregnancy and childbirth…

    New blood ties that arise as a result…

    Recognition and belief close to mass hypnosis, and a marriage contract with all the trimmings…

    The bonds and boundaries between families, which seemed like they would never change no matter what, easily crumble.

    But even so, as Sejin said, neither the collapsed side nor the existing relationship could be false.

    Sejin’s moans intensify Siwoo’s excitement along with the sounds of thrusting.

    **

    Before signing, Siwoo brought the head of the pen he was holding to Sejin’s back.

    The pointed ball of the pen touched her smooth back.

    Siwoo slowly wrote the letters on her bare back so that Sejin could understand.

    ‘Si Woo Yoo’

    A name slowly being written as if practicing the signature that would go into the marriage contract.

    ‘Se Jin Yoo’

    Siwoo then wrote Sejin’s name next to his name.

    ‘Older Sister’, ‘Stepmother’, ‘Mother-in-law’, ‘Stepdaughter’, ‘Sister-in-law’

    Letters being engraved in large black lines on the back of her neck…

    Siwoo was writing down the relationships between himself and Sejin that came to his mind, as if listing them.

    New relationships that can be created through sexual relations with other family members.

    Her vaginal opening twitched every time a line was drawn to create a letter or word.

    “Why? Does it tickle?”

    Siwoo stopped drawing the lines on Sejin’s back and asked her.

    Sejin leaned forward and shook her head from side to side.

    Siwoo pushed the binder and contract on her back up a little to secure the empty space on her back.

    ‘Seonmi’, ‘Gyuri’, ‘Seah’, ‘Sejin’

    Siwoo wrote the names she knew in letters bigger than the ones he had written above.

    Siwoo circled Sejin’s name as if checking it off.

    Then, he wrote down the relationship he wanted to have with her on her waist.

    ‘Wife’, ‘Third Concubine’

    After writing the last word, Siwoo drew a big question mark over the words written on her back.

    The tail of the question mark, drawn like graffiti, went down to her buttocks.

    “Heeeuuuu…”

    Sejin squeezed her thighs inward and lowered her buttocks as if her legs were giving way.

    Slap!

    Siwoo straightened her waist and slapped Sejin’s buttocks with the opposite hand holding the pen.

    Haat!

    Sejin tensed up, regained her balance, and tried to regain her posture by lifting her buttocks.

    Both of her buttocks were swollen red from Siwoo’s handprint.

    Siwoo lowered the pen and wrote again on her swollen buttocks.

    ‘Answer!’, ‘You Bitch!’

    The black letters, written one on each side, were clearly engraved on her wet, red skin.

    Her vaginal opening was trembling and tightening every time a line was drawn on her butt.

    After the letters were finished being written on her red skin, Siwoo stopped moving as if waiting for her answer.

    An answer being demanded as if it were the price for the signature that would go into the marriage contract.

    Sejin seemed to understand the situation and took a deep breath.

    “Haa… yes…”

    Then, a response that seemed to have been released in vain at some point flowed out of Sejin’s mouth.

    ‘SWY’

    Siwoo engraved his initials on Sejin’s butt with a pen.

    English initials that he told his mother and Sejin to engrave on the inside of their thighs, as if leaving proof that they were his possessions.

    “Prioritized over legal effect?!”

    “All existing contracts are terminated?!”

    Siwoo recalled the clauses written in the marriage contract and said as if it were ridiculous.

    Thwack! Thwack! Thwack!

    At the same time, Siwoo’s penis was plunged into her vaginal opening.

    “Haa, haa! Haa!”

    Sejin moaned anxiously.

    “I’ll do it! Sign! But know that this is now a priority between you and me over those documents!”

    Thud! Thud! Thud!

    Siwoo wrapped his arms around her pelvis and said as he powerfully thrust his penis in.

    “Heuk… haak… haaang…”

    Sejin’s upper body completely collapsed, and her face fell onto her arm placed on the desk.

    The binder placed on her back did not slide down or become scattered, but remained stuck to her back due to the frictional force of the sweat.

    Siwoo wrapped his arms around her pelvis again, creating a position where his stomach wrapped around her.

    Siwoo put his elbow back on her waist and organized the binder and documents.

    Siwoo reviewed the marriage contract with Seah once more, and then wrote his name in block letters in the signature field of the marriage contract.

    Seah, who is Sejin’s daughter, is now in a married relationship with him.

    Siwoo placed the signed document on Sejin’s desk.

    Siwoo put the other sheet of paper, which had been signed in advance, into the binder and threw it onto the bed.

    Then, he began to write the new relationship Siwoo wanted on her empty back with the pen he was holding.

    ‘Slave’, ‘Prostitute’, ‘Slut’, ‘Pussy Woman’, ‘Exclusive Sex Toy’, ‘Human Onahole’

    Contemptuous words that seeped from the end of the pen were filling her empty back.

    Sejin’s vaginal walls wriggled and bit Siwoo’s penis.

    Then, her vaginal opening occasionally trembled as if convulsing…

    She was denying it, but her deeply rooted instincts were clearly similar to her mother’s tendencies.

    Swish! Thwack! Thwack!

    Siwoo slammed his penis violently into Sejin’s vaginal opening.

    Siwoo’s breath became rough, and a hot friction occurred in the sensitive areas of skin that came into contact with her body.

    His movements gradually increased in speed, and the muscles in her thighs and pelvis became tense with force.

    The breast milk that had formed on the tips of Sejin’s swaying breasts dripped onto the floor in white droplets.

    “Haa, haaaa, haaat!”

    Sejin’s moans filled the officetel room.

    Siwoo could tell from Sejin’s reaction that she would soon reach her climax.

    At that moment, Siwoo pulled his waist back and pulled out the penis he had stuck inside her body.

    Whoosh!

    Siwoo’s penis was pulled out from her vaginal opening, creating a sticky friction sound.

    As the humid space opened emptily, their unfulfilled desires seemed to resonate and echo in silence.

    Siwoo approached the bed and picked up his smartphone that he had thrown on it.

    Siwoo stood behind her again with his smartphone.

    Her neatly arranged anus and wet cracks were being exposed in a blatant display.

    Click, click, click!

    Siwoo used his smartphone camera to save photos of the graffiti-like letters written on Sejin’s back, her anus, and her front mound.

    As soon as he saved it, Siwoo sent the photo to Sejin’s smartphone.

    Sejin was maintaining her position, bent over towards the desk, as if expecting Siwoo’s insertion and thrusting to continue.

    Slap!

    Siwoo slapped Sejin’s butt with his palm.

    Haat!

    Her waist arched backwards, and her pelvis and buttocks soared upwards.

    “I’m going to wash up and come out, so clean up!”

    Siwoo left her standing as she was, leaning on the desk, and headed to the bathroom.

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