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1.

Instead of being on all fours like an animal as planned, Deneb was assuming a different position.

She lay flat on her stomach, pressing her belly into the bed.

Her flimsy nightgown, which barely provided any coverage from the start, was pushed up past her waist, leaving her bare, round ass completely exposed.

Siwoo was the one who came up with this position for her. He figured that it would be less taxing considering she could hardly handle being penetrated while standing.

He positioned himself between her long, slender legs and lowered his body over hers before pressing them together.

Her plump ass, raised slightly even as she lay flat, cushioned his thrusts like a pillow and gave him surprising stability.

-Smack! Smack! Smack!

“Ah! Ngh! Ahh! Mmm!”

With a rhythmic pounding of his hips, like pounding rice cakes, Deneb’s feeble attempts at tightening around him failed entirely.

All she could do was to clutch the bed sheets tightly, enduring the shame and humiliation while desperately trying to muffle her moans.

“Hngh! Ah! Ahh!”

At first, her moans she let out sounded extremely strange.

Due to her self-essence magic, her voice was originally enchanting, but her moans couldn’t be described with any words other than ‘unsightly’.

As they resembled the cries of a wild animal.

However…

That raw, primal sound she let out only drove him into a greater frenzy.

The fact that she was trying desperately to muffle her cries, biting her lip and clenching the sheets, and failing miserably…

Add that with the thought that he was slamming his cock into her virgin rear hole as if it was a stamping seal, while hearing the innocent woman’s great failure to control her moans properly obliterated any sense of restraint he might have had.

That overwhelming arousal gave Siwoo’s thrusts a new level of finesse.

With each thrust, his pelvis met the cushion of her plump, jiggling ass, creating a loud and satisfying smack.

Even the bed’s luxurious, cloud-like mattress springs felt like it was assisting his rhythm as he relentlessly pounded his mother-in-law’s hole.

-Squelch! Squelch! Squelch!

“Ah! Ngh! Hah! Nngh!”

Just as Deneb started to get used to the rhythm of Siwoo’s thrusts…

-Squish!

He made a sudden change.

“Haaangh…!”

Deneb stiffened her toes, clenched her buttocks, and bucked against his cock.

A high-speed contraction and relaxation, like a fever dream, began; going with the speed of five thrusts per second.

“Ah…”

Meanwhile, Albireo could only sit there, mesmerized, as she watched her sister and son-in-law having this wild sex.

Over time, Siwoo’s thrusts only grew more aggressive.

Trapped beneath him, Deneb couldn’t escape; she could only let out strange noises.

The intensity of the scene far surpassed anything Albireo had ever witnessed. Once, she had peeked at a couple having a sex from behind the curtains, but even then, the scene wasn’t as intense as this.

Siwoo was practically devouring Deneb.

Every time he thrusted forward, Deneb’s pale, supple ass rippled and flattened like soft rice cakes beneath him.

When he pulled back, his thick, slick cock emerged, glistening from her soiled opening. The strange liquid that connected his cock and her hole glowed under the dim light.

His muscles flexed and tightened as he leaned forward, pouring strength into every motion.

The two of them, tangled together in animalistic passion, breathed heavily, their harsh gasps fogging up the nearby glass windows.

“N-No…! S-Sis…! I-I…! C-Can’t…! Ahhh…!”

Meanwhile, Deneb felt like she was thrown back to her days as an apprentice witch.

She whimpered with her high-pitched voice. Desperately calling for Albireo.

But, she couldn’t even make out anything coherent to say.

Her gaze that landed on Albireo was unfocused, swirled with hot and unrestrained lust.

-Squish! Squish! Squish

“Hh… Hic…! Hngh…! Sis…!”

Breathing heavily like she was about to faint, she finally started hiccuping with trembling shoulders.

Tears of pleasure streamed down her face, her eyes half-closed and glazed over.

Albireo saw every detail of Deneb’s expressions and how she was experiencing the pleasure.

“Nngh…!”

At that moment, Deneb’s body stiffened. Her hands gripped the sheets as if she might rip them apart.

Instead of moans, ragged breaths escaped her lips, and soon, she began to thrash around.

“Hah…! Nggh…! N-No…! W-What… Is this…?! S-Something, something… In my stomach!”

Deneb’s body, which had been flailing as if coming out of a trance, froze again.

But this time, it didn’t stop there.

“Kyaaaahh…!”

Her body started to convulse uncontrollably.

The source was her intense orgasm, shot through her like an electric shock, making her limbs jerk uncontrollably.

Siwoo leaned down completely on top of her, wrapping his arms around her neck to stop her frantic movements.

Albireo, who would normally have stopped them, could only stare in a daze.

-Twitch!

“Ngh… I…!”

A strange, tingling pleasure was spreading through Albireo’s body, starting from her hips.

She had never felt anything like this before, but she could tell of its nature; ‘sexual’.

Of course, the stimulation didn’t come from her watching them.

But rather because her body reacted as though it had been physically stimulated.

“T-This is….”

In fact, she felt a hint of it before.

When Siwoo started licking Deneb’s rear, she had felt a strange, tingling sensation.

But she had dismissed it as her being aroused a little.

After all, the scene in front of her back then was undeniably sensual.

But the moment Deneb had her first orgasm, Albireo knew that it wasn’t just a mere arousal.

The Geminis were one.

And that wasn’t just a metaphor or a figure of speech.

They had strived to become one, to break down the barrier between the twins, and they had succeeded in doing so.

The Geminis had long studied magic through ‘resonance,’ allowing them to instantly sense each other’s magical state, even across the world.

But this wasn’t just limited to magic.

Sometimes, intense emotions or sensations could also trigger this ‘resonance.’

“Could it be…”

If that’s the case, then this…

“Ugh! Hic…! Hiccup…! Hic…!”

Siwoo was holding onto Deneb’s wrist as she panting heavily. Then, he started to move his hips slowly.

At the same time, Albireo felt a strange, hazy sensation pass through her.

A pure, more intense form of pleasure than she felt before.

Deneb’s intense orgasm had probably strengthened their link.

“Ugh!”

Albireo pressed her knees tightly together.

Fortunately, Siwoo and Deneb were completely absorbed in their act, and they didn’t seem to notice what was happening to her, but… The more she observed, the clearer it became.

Every time Deneb ‘felt’ something, Albireo ‘felt’ it too.

Though it was faint and much weaker than what Deneb was experiencing, the pleasure was being transferred to her in real time.

Neither the countesses nor Siwoo could have foreseen this.

The Gemini Family, drowned in their conservative views, had no history of sexual intimacy among their members.

Meanwhile, the ones who did, were the twins, apprentice witches who had never achieved a full resonance.

This lack of knowledge left the mystery of their ‘bluetooth sex’ undiscovered.

-Schlp!

“Ahhhng!”

As Siwoo moved back then thrust deep into Deneb.

The pleasure intensified, making Albireo’s vision flash.

“Hng!”

Albireo hiccuped in surprise.

A strange, invasive tingling sensation shot through her insides.

It was definitely weaker than what Deneb was feeling, but it was still incredibly disconcerting.

“Um… Mr. Siwoo?”

Albireo called out to Siwoo hesitantly.

-Squish! Squish! Clap! Clap!

“Hngh! Ahh! Aahh…! Hnghh…!”

But Albireo’s voice was barely audible, and Siwoo was completely focused on fucking Deneb.

With Deneb’s intense moans, like a cat in heat, and the loud, wet sounds of their sex filling the room, it was no wonder he didn’t hear her.

“Again…! Again…! Haaaaang…!”

Deneb’s body, pushed to the limit, plunged into another orgasm.

Waves of pleasure shivered down her spine as her ass clenched tightly around Siwoo’s cock.

Tears streamed down her face, her delicate features contorted in ecstasy as her toes curled. She gasped for breath, completely lost in the pleasure.

Her second intense climax.

-Throbb!

At the exact same moment as her sister’s climax, Albireo was overwhelmed by a suffocating wave of raw, intense pleasure.

Albireo’s own ass felt like it was climaxing too, twitching uncontrollably, and the black lingerie beneath her dress became completely soaked.

“Oh…my…!”

Now she knew for sure.

This feeling got stronger every time Deneb climaxed.

That was when she also finally understood why her sister Deneb, who was no less versed in etiquette than herself, was acting like a wild beast.

Pleasure shot through her body, making her stomach feel all tingly, like a sudden downpour.

And this much pleasure came from merely the transfer of sensations.

-Thrust! Thrust! Thrust!

“Ugh…! Uhm…”

“Heeeek! Huuuung! Sis…! Sis…!”

Watching them fuck, combined with this unexpected pleasure, completely overwhelmed even the usually composed Albireo.

Deneb was now completely taken by his cock, unable to resist at all.

Just an hour ago her ass was merely a neglected part of her body, but now, it was gripping his cock like crazy.

Deneb was so turned on she could feel every ridge and throb of his cock as he pumped into her.

And unfortunately for Albireo, she could thoroughly feel her pleasure.

“Whew… Ah… Aah…!”

She was starting to feel everything her sister was feeling.

It felt like someone was holding her wrists down as her ass kept sending waves of intense pleasure that made her head spin.

She could even feel the pubic bone and cock that was pressing against her ass.

“Haaa! Haaa…!”

Oblivious to what was happening with Albireo, Siwoo picked up the pace, getting ready to cum.

His cock, swollen with cum, plunged into Deneb’s asshole, while her asshole eagerly sucked it as if giving him a blowjob.

-Glug! Glug! Glug! Glug!

“Anggghhh…! Heeeeeeek…! Huaaaang!”

And that was how she reached her third orgasm.

Siwoo pressed down hard on her writhing body while thrusting his dick in deep, like he was scraping her womb.

The intense contractions of her anus as she orgasmed made it difficult for him to cum.

But as her womb seemingly eager to pull his baby butter in, Siwoo eventually got to shoot his cum deep inside her.

shot his hot cum deep inside Deneb.

-Spurt! Spurt! Spuuurrt!

“Ah… ahh… .”

Deneb’s mouth hung open as she trembled, lost in pleasure.

“Ack! Ngg!”

After cumming, Siwoo was still grinding his hips, trying to spread the jizz around. He had no idea that Albireo, who was next to him, was making some weird noises every time his dick twitched.

“Haa… That’s it… Finished…”

“…”

“Do you mind if I pull out?”

“…”

As no response came from her, it was clear that Deneb was completely knocked out.

He pulled his dick out of Deneb’s limp, stretched-out asshole.

-Squelch…!

“Nggghh…!”

The mucous membrane clung to his still-hard cock.

It was like her hole was sucking him in, especially the mushroom-like head of his cock.

Even then, her asshole kept twitching and clenching.

Its tightness was hard to describe, even for Siwoo.

-Plop!

“Ahhhhaang!”

After enjoying the sensation for a moment, Siwoo pulled his cock all the way out.

With a distinct popping sound, like uncorking a bottle, his cock came free.

From her lovely asshole, which had changed from pink to red, his thick cum oozed out with every twitch.

And the sight of that stream of cum decorating her macaroon-like pussy was, without a doubt, a sight to behold.

Siwoo wiped the sweat from his forehead, letting out a deep sigh.

That was when he felt a gaze fall upon him.

And when he remembered that Albireo had been watching the whole thing.

All this time, he had been so caught up in the moment that he somehow forgot about her.

“Um… Countess Albireo…?”

Although he was only doing what they asked him to do, midway through the action, it was clear that he had been indulging himself. Anxious about what Albireo thought about that, he turned his gaze towards her.

She was sitting straight, holding the side of her chair tightly, like a proper lady.

But her face was bright red.

What she had just seen must have been quite a sight to her.

Siwoo suddenly felt self-conscious.

“…Let’s wake Deneb up first… We’ll continue our conversation then…”

In front of Siwoo, who was at a loss for words and waiting for her to speak.

Albireo mumbled as such while avoiding his gaze.

***

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