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1.

-Srrrrt!

After a few months had passed, Odile’s rear hole was finally being ripped open again.

Before Siwoo inserted his cock in, he had already loosened it up considerably first with his finger.

Despite him having some difficulty inserting his cock in at first, once he got it in, her hole crazily sucked his cock in like a vacuum.

“Ngh…! Aahh…haaah…!”

Odile’s legs were raised up high.

As for her hands, Siwoo placed them on her back and tied them by the wrists.

Of course, he placed a pillow beneath her, so that her hands wouldn’t get crushed by the force during the action. Still, with all her limbs being bound like that, Odile couldn’t do anything but receive his raging shaft without any means to resist.

She was less skillful than Siwoo in magic now, so she couldn’t just try to break free. Of course, she could try using her physical strength, but Siwoo got her beaten in that regard too.

“M-Mr. Assistant…! Y-You’re going…t-too fast…!”

But what about Odette? What was she doing during this time?

“A-Also, Odette! S-Stop biting me…! W-Why are you even—?!”

“No way, I want to look at your lewd expression, Sis… Also, this is what Master wants…!”

She was clinging closely to Odile’s nipples, sucking on them vigorously.

It was to the point that Odile’s breasts turned cone-shaped.

“Odette…! I told you to stop…!”

“Sorry, Sis. Sluuurp…!”

This was Odile’s first anal sex in a few months.

Actually, ever since she was awakened to the pleasure, courtesy of Siwoo, oftentimes, she’d pleasure herself in this way to satisfy her sexual urges, especially when Siwoo was still in the Modern World.

However, compared to the thickness and rigidity of his enormous cock, the fingers she used to pleasure herself were nothing. It was like comparing the limp dick of a pathetic NTR protagonist to the big dick his wife’s affair partner had.

Due to its size, Siwoo’s cock could reach the part of her uterus that her small fingers couldn’t even dream to reach.

Now, that alone had already driven her crazy, but what if the stimulation from Odette sucking her nipples without stopping were to be added?

It went without saying that she couldn’t even think straight anymore at this point.

“Master, you’ve become more skillful… The way you made Sis’ waist move looks so lewdly…”

“Ngh…! I said…! Stop…it…! Odette…!”

“No way~ Stop being so stubborn and just accept it, Sis! Chuupp…”

What Odette said was pretty much a given.

He had done plenty of fucking since the time they had sex inside the twins’ carriage.

Previously, he had just been leaving everything to his instincts, but now he could perform actual techniques on his intercourse partner.

Rather than just thrusting this shaft in roughly, he could now make sophisticated and efficient movements.

-Plap, plap, plap!

While her rear hole was being stabbed repeatedly and her breasts were being sucked vigorously, Odile’s pussy had been spurting out love juices uncontrollably.

“Huu… This is quite crazy…”

Meanwhile, Siwoo was experiencing the harmony of her anal’s tightness and looseness as he rammed his dick in repeatedly.

Especially when he thrusted his cock in deeply in upward direction. Her body would start to tremble like a frightened bird and that would add to the stimulation he felt on his cock.

Not only that, he was also witnessing the amazing scenery in front of him.

It was arguably even more beautiful than the Han River.

Odile with her legs spread far and wide, receiving the full length of his shaft without being able to resist. Every time his thick cock hit the deepest part of her rear hole, his tummy would bulge a little.

Odette, lifting her hips like a cat as she caressed her sister’s breasts. Her love juices glistened like honey through the cracks of her tight pussy entrance.

-Plap, plap, plap, plap!

“Ahh…! Hngg…! Haaaeung…!”

As he kept on attacking Odile with the technique he gained over the months, her waist slowly began to arch up.

The way her ankles tensed up, as if she was having a cramp, suggested that her climax was close.

It was much faster than he remembered, but it was probably because Odette’s help sped up the process.

“D-Don’t…! D-Don’t look at me…! Haaaeung…!”

As her hands were bound, she was unable to use them to cover her face from Siwoo’s sight.

Just like that, she reached her climax, spurting her love juices onto Siwoo’s abdomen.

Seeing her face melting while it was unfolding was pretty much a bonus.

“Haa…ngh…! Hic…!”

“Ugh!”

Everytime she spurt out the love juice, the grip she had on his cock would considerably tighten.

Thanks to that, he could feel the lingering feeling of the pressure, as his cock was starting to hurt from it.

“Wow… So lewd…”

Meanwhile, Odette stared at her sister’s climax with a red face.

She understood what she was going through, though.

Because this was also what happened to her the last time she took on the full length of his shaft.

It was just, seeing her dependable sister in this state brought a strange excitement into her heart.

She felt a slight guilt, as if she had done something wrong, but she also felt as if she had beaten her somehow.

Meanwhile, Odile glared at her with tearful eyes.

“O-Odette, you…! I-I told you…t-to stop…”

“Sorry, Sis, but you looked so lewd, I can’t help it… Also, Mr. Assistant told me to do it…”

She was right, Odile looked so lewd as her love juice dripped down her narrow entrance like honey without Odette and Siwoo needing to touch her.

He watched over their exchange.

In normal circumstances, he’d give the twins one shot each.

But, since it had been a long time since the last time he had done it with them, he figured that he might as well compare the sensation of their rear holes while he was at it.

The moment he decided that, he immediately acted on it.

“Huh?”

“Odile, what says you if I give you a chance for revenge?”

“I’ll take it! Give it to me!”

After receiving that answer, Siwoo quickly untied the ribbon he used to bind Odile and bound Odette’s hands behind her back instead.

Meanwhile, Odette looked at him in surprise.

A slight contempt over his betrayal, accompanied by her embarrassment flashed on her eyes.

“Mr. Assistant, wait! At this rate, Sis will…!”

“Odette! I told you to stop, didn’t I?”

Hearing her sister’s somber voice made Odette tremble in fear.

She really thought that she’d be going on the offense all the way through. Never did she expect that a sudden change in role like this would happen.

“U-Um, Sis…? H-Have I told you how much respect I have for you…?”

“I know that already without you telling me. Master, can I start now?”

“Sis, no!”

“Don’t worry, Odette, I promise you’ll feel good too.”

They started to banter as usual, but it wouldn’t stop Siwoo from doing what he wanted to do.

He lifted up Odette, who had been struggling to release his binds.

Then, he slid his cock into her rear hole without hesitation.

“N-No, wait…! M-Master! I-I’m not ready yet…!”

“It’s okay, Odette, just relax~”

“H-Haaaeung…!”

After aligning his glans with her entrance, he shoved his dick in.

Thanks to the force behind his thrust, her hole was ripped open and she had no choice but to accept his shaft.

Maybe because it had been a while since the last time they did it, Odette rolled her eyes up, to the point that they turned white, while her body trembled greatly.

“Ms. Odette, breathe!”

“...Huuuu… Ngh…! M-Master… I-It’s too big…!”

“Relax, this isn’t your first time, no? I’ll take it slow…”

“Ngh…! Ahhn…!”

She swallowed his enormous cock with difficulty. Eventually, half of his cock disappeared into her rear hole.

Now that they had gone this far, her body had relaxed considerably, at least compared to before.

“Master, wait, can you stay where you are?”

“S-Sis…! P-Please don’t! I-I beg you…! Haaang…!”

Siwoo, who was holding onto Odette’s hamstrings, suddenly felt a change in the level of tightness around his cock.

Odette was clearly struggling handling both the pleasure and pain in her stomach.

As if that wasn’t enough, Odile was also biting her clitoris, since it was in a completely exposed position, thanks to Siwoo spreading her legs wide..

For reference, this was the kind of scene that Siwoo expected when he decided to pit the two of them against each other.

“Prepare yourself, Odette!”

“S-Siiiis…! I-I was wrong…! Ahh…! Haaaeung…!”

“You’re weak around this area too, hm? Then, if I bite it like this…”

“Hyaaah…!”

“...Serves you right…!”

Her heart burning with revenge, Odile kept on attacking the bound Odette.

Maybe it was because they were twins, but it seemed like they had the same erogenous zones, so Odile’s attacks were surprisingly skillful.

And perhaps because her sister’s caress was too much for her to handle…

Siwoo didn’t even need to move, Odette had naturally lost control of her rear hole and the rest of his cock was instantly swallowed in by it.

The way her body shivered as it happened made Siwoo feel like this hole was some kind of premium onahole.

“Alright, I’ll move now.”

“Go ahead, Master!”

“N-No, wait! I-If you move now…!”

With Odette’s love juice smearing her lips, Odile let out an evil smile. Meanwhile, her little sister freaked out in terror.

Then, Siwoo started to hold onto Odette’s waist tightly and began his thrusting.

And, it was as he remembered, unlike Odile’s whose rear hole would suck him in, Odette’s rear hole pushed him back out.

The more pleasure she felt, the stronger the pushing force it had.

“Aaahh…! M-Mr. Assistant…! Nghh…!”

“Sluurrp…!”

“Kyaaah…!”

As Odile gently bit Odette’s clit and sucked it like a vacuum, the latter’s body struggled around like fish out of water.

Just taking in Siwoo’s dick had already driven her crazy, but she also had to deal with her sister’s attack, who knew about her weaknesses in detail.

The pleasure she felt was doubled.

That was why it wasn’t strange that her lower mouth had been spurting out love juices like no tomorrow.

Meanwhile, Siwoo used his weight to push forward, counteracting her pushing force.

The sensation of his cock ripping her tight rear hole…

And the sight of Odile’s gentle caress while getting her face drenched with her sister’s love juice…

With those two stimuli combined, it wasn’t a wonder that Odette felt her climax was only getting closer and closer.

“S-Sis…! S-Stop…! Aahh…!”

Even though a minute hadn’t even passed since they first started, Odette had already curled her body like a shrimp.

“Ahh…ahh…ahhh…!”

She let out hiccup-like moans while tightening her grip on his cock.

Her climax kept on building up, surpassing her fastest record yet.

Meanwhile, Odile, who had been biting her clit, was having trouble keeping up with her movements.

After several seconds of violent writhing, Odette’s stiff body finally went limp.

“Haa…haaa… I-I feel so…lightheaded… C-Can you stop now, Mr. Assistant…?”

She begged in an almost tearful voice, pouting her lips.

Ah, I can’t hold it back anymore.

Instead of answering her, Siwoo turned her body around and placed her on the bed.

Then, she folded her hands to her back, before forcing her to take a kneeling position with her butt raised up.

After that, he embraced her from behind.

“A-Ahh…? Haaeung! M-Mr. Assistant…?!”

Without any hesitation, he continued pistoning into her rear hole.

-Plap, plap, plap!

“Aahh! Ahh! M-Mr. Assistant! I-I don’t need this, please…! I-I need to take a breather…! Haaang…!”

“Wait, Master, if you do it this way, I can’t join in!”

“I’ll do it with you immediately after this is over, Ms. Odile…!”

He could feel it. Just a little bit more and he’d be shooting his load out.

The night was still long, so there was plenty of time for him to screw around with Odile.

Right now, he was trying to focus on pouring his hot semen into Odette’s unsoiled rear hole.

“Ngg…! Mmh…! Hnnggg…!”

Meanwhile, Odile’s breathing grew more erratic as she was watching Siwoo pouncing on her sister so roughly as if he was about to impregnate her.

Since their appearances were the exact same, she couldn’t help but put herself in her sister’s position.

Although she hated the fact that she wasn’t the first one to receive Siwoo’s semen…

She decided to not throw any tantrums over it, since today was supposed to be the day when they served him, not the other way around.

“Huh?”

Instead, she buried her face into his buttocks.

Before Siwoo could register what had just happened, she showered his rear hole with licks and kisses.

“Sluurrp…chupp…”

Even though his body had turned into a spirit body, she still felt some kind of aversion towards it.

It was the dirtiest hole in his body until not too long ago after all, and she still couldn’t get used to thinking that it was a clean place.

After all, even she herself almost died from the embarrassment the first time Siwoo took her anal virginity.

But, Odile wanted to join in the fun…

So, she decided to follow what the erotic novel had said; Helping Siwoo to spurt out all of his semen into Odette’s anus.

“I’ll…give you a blowjob…from behind…sluuurpp… Just come inside her first…”

Siwoo could feel his head spinning.

Odile had no idea how seductive she currently was in his eyes.

This intercourse was already filled with immoralities to begin with, from the threesome to the anal sex.

And now she started to caress his rear hole so that he could cum comfortably inside her sister?

It sent shivers down his spine.

Sex was something he had done multiple times, but it was the first time that he got this aroused from this level of immorality.

“Sluuuurpp!”

“Ahhh…! M-Mr. Assistant! Haaaeung…!”

As Odette was suffering from the endless pleasure…

Odile managed to find the right timing to cling into Siwoo’s buttocks and kept on caressing it.

Her nice assist accelerated the process of him spurting out the semen that had been accumulating in his balls.

-Spurt, spurt, spurt, spurt!

“Haaaaeung…!”

His hot white semen entered Odette’s stomach.

He felt the same sensation that he always felt whenever he ejaculated; A feeling of relief that managed to take his breath away.

With Odile’s tongue added to the sensation…

The pleasure he felt was easily doubled.

It felt like he was cumming from two different places.

-Plop!

“Haah…nghh…!”

After he was done, he slowly removed his dick from Odette’s rear hole.

The same hole immediately spurt out the hot white liquid like a volcano the moment his shaft was out.

It was opened wide enough to the point that he could see her bright red insides, but it closed itself again in no time, as if the rough sex had never happened.

He couldn’t help but feel amazed by its resilience.

However, the same couldn’t be said for the person herself, as she was lying down weakly on the bed, seemingly out of energy after two consecutive climaxes.

“Thank you, Ms. Odile… Jeez, my legs are shaking now…”

“No problem, Mr. Assistant! I was only doing it because it’s you! Anyway…can you cum inside me next?”

She stared at him with a gentle look in her eyes.

As for his answer to that question…

Did it really need to be spelled out?