City of Witches-Chapter 424: Verification (5)

1.

“So, how should we start?”

Deneb said, placing her hands on her hips.

Her nightgown, folding delicately like fairy wings, parted slightly in the middle, revealing a glimpse of her slender navel.

It was the kind of revealing attire you’d never see on mainstream TV dramas.

Despite the outfit showing quite a bit of her skin, her face showed no trace of embarrassment.

It reminded Siwoo how perception could change emotions, even in the same situation.

Imagine a scenario where a guy walked into a women’s bathhouse. One time as a toddler holding his mom’s hand, one time when he was old enough to understand sexual attraction. It was like that.

For Deneb, relationships and sexual attraction were completely alien concepts.

In her eyes, tonight’s task was just an extension of an unusual magical experiment.

“…”

But for Siwoo, the situation couldn’t have been more embarrassing and uncomfortable.

Regardless whether it was a magic experiment or not, it was still an indecent act involving his mother-in-law’s body.

The vast difference in their perspectives left Siwoo speechless. At that moment, Deneb raised three fingers and made her declaration.

“Don’t even think about skimping on this. Tonight’s experiment will involve detailed examinations of every step, from insertion, to thrusting, to ejaculation.”

“Oh, Deneb…”

Unable to bear the sheer bluntness of Deneb’s words, Albireo covered her face with her hands.

Though he kept his mouth shut, Siwoo was mortified.

His brain was still processing what had just happened, trying to accept that something so surreal was actually real.

It was the feeling that anyone who had woken up on the second day of military camp would understand.

“A-Alright…”

Siwoo cleared his throat, steadying his cracking voice, then he spoke up.

“F-First, I’d need you to lie face down over there.”

He gestured towards the bed as he said that.

As long as she bent her body a little and placed a pillow under her hips, things would probably be easier on him.

Because doing it face-to-face would only make him feel uncomfortable, if anything.

He decided to just close his eyes and finish it from behind.

“…Lie face down? Why should I?”

“Umm…”

“Are you telling me to crawl on all fours like an animal?”

“…”

Sex with zero intimacy or connection was proving to be a nightmare.

What made it worse was Albireo chiming in, supporting Deneb’s absurd objection.

“Mr. Siwoo, trying to indulge your preferences at a time like this is a little…”

“No, that’s not what I mean!”

“Just keep it normal, please. That kind of position is way too indecent.”

He barely stopped himself from saying, ‘And testing this through the anus isn’t indecent?’.

But he had no idea what they considered a ‘normal’ position.

The worst thing was that, it wasn’t like he could start debating the correlation between anal sex and positions here, so the whole situation was driving him mad.

“…Fine. I’ll leave it to your judgment, Ms. Deneb.”

“That’s probably for the better. Lie down over there.”

Annoyed by Siwoo’s hesitation, Deneb decided to take charge of the experiment herself.

As he rested his head on the pillow, Deneb’s faint, comforting scent that lingered on the bedding reached him.

Climbing onto the bed on all fours, she reached out and untied Siwoo’s belt.

A bathrobe was never the most secure or protective clothing to begin with.

Her fingers paused briefly before parting the overlapping folds of his robe, revealing his limp member.

Deneb gulped nervously, but her movement was ever so subtle.

It was the first time she had seen a man’s genitals this close.

“First, we’ll need some lubricant, right?”

She pulled out a bottle of aromatic oil she had prepared earlier.

Since the rear hole naturally produced very little fluid aside from minor secretions, adding in lubricants before the act was essential.

The premium aromatic oil, made from whale blubber, would serve its purpose even better than regular lubricants, making it the ideal choice.

Without hesitation, Deneb poured nearly half of the expensive oil directly onto Siwoo’s shaft.

It was obvious that she didn’t know that the amount needed to be moderated.

Before long, the overwhelming fragrance, nearly headache-inducing, wafted strongly from his lower body.

With peculiar concentration, Deneb kneaded Siwoo’s member as if she were preparing a strange side dish with sesame oil.

Though she was clueless about everything else, given that she had lived for so long, she at least knew that arousal was necessary before insertion.

However, despite her clumsy efforts, Siwoo’s member refused to be fully erect.

Sensing something was off, Deneb asked.

“Is this as big as it gets? The texts said it’s supposed to become hard…”

“I don’t think so…”

Albireo, who had once caught a glimpse of Siwoo’s intimacy with the twins, also tilted her head in confusion.

According to her memories, his member was thick and stiff—even its shadow was humongous. Now, it looked more like an eggplant after it got roasted in an oven and soaked in oil.

But Siwoo had his reasons.

It was known that the main cause of erectile dysfunction in men in their twenties was psychological.

No matter how beautiful Deneb was or how tenderly she stroked his dick, he just couldn’t get aroused.

If he had to summarize the current event in a single sentence it would be, ‘I ripped open my virgin younger mother-in-law’s rear door in front of her inexperienced older sister’. An absurd situation, to say the least.

Unaware of his inner conflict, Deneb urged him again.

“Hurry up and get hard.”

“That isn’t something I have complete control over…”

“Siwoo, there’s a saying, it’s better to get the worst part over with first, so let’s just finish this quickly.”

“Fine… I’ll try.”

Even if he tried to stall, he wouldn’t be able to avoid the situation anyway.

So, he closed his eyes, and focused on his breathing, trying to get an erection.

He mentally gathered every happy memory stored in his synapses, channeling the blood flow toward his erectile tissue.

Slowly but surely, his member began to grow, fueled by sheer desperation.

Deneb’s eyes widened in astonishment as she watched its unbelievable transformation.

“There, it worked.”

Though she maintained a calm facade, Deneb couldn’t help but think, ‘It’s bigger than I expected…’.

This was the first time in her life she would insert anything into her anus.

It was hard for Deneb to predict how difficult the process would be, but judging by this thing’s size, she calculated that it was just within manageable limits.

That gave her a little bit of confidence.

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“Hm…”

Albireo, however, continued to look at Siwoo’s groin with a doubtful expression.

After he forced it to stand erect using his special technique, it got hard, but it wasn’t completely hard.

This was what people often call a semi-erect state.

Luckily, neither of the sisters seemed knowledgeable enough to point that out, so the situation moved along without any issues.

“I’m going to insert it now.”

Deneb crawled up between Siwoo’s legs and squatted down.

Due to her posture, her robe parted slightly, revealing her smooth chest down to her sternum.

But there was a problem.

“Um… You’ll need to take off your clothes.”

Deneb’s crotch was still hidden behind her panties.

Although the outline of her slit was faintly visible and was clearly attractive, insertion with her underwear still on was simply impossible.

“Do you think I’m that clueless? There’s no need for me to show you everything.”

Deneb let out a sharp snort and then grabbed Siwoo’s shaft as she said that.

Her slender fingers, slick with lubricant, wrapped around it firmly.

His glans brushed against something slightly bumpy textured; the unmistakable feel of Deneb’s anus entrance.

It seemed like she had cut away only the back of her panties.

“Ah…!”

Deneb flinched in surprise. The heat from her rear turned out to be much warmer than she expected.

Even Albireo, who had been casually throwing comments earlier fell silent, focused on what was happening.

The bizarre situation felt as though Siwoo was being treated like a living dildo.

Still, attempting anal penetration in a cowgirl position was anything but easy.

To make matters worse, Siwoo’s semi-erect member kept slipping off the mark, instead of sliding along the cleft of her ass.

“Why won’t it go in?”

It already felt uncomfortable enough—she felt like she was rubbing her rear with some squishy substance—but the fact that it kept on failing just made it downright frustrating for her.

Deneb furrowed her brows.

“Can this even go in?”

“Yes, it can, but….”

“Let me help.”

“Stay out of this, Sis.”

Still in a crouching position after Albireo’s comment, Deneb responded curtly.

This situation was more absurd than anything one’d find in a trashy Korean drama.

But regardless of how absurd the moment was, the male body tends to respond honestly.

As Deneb continued stimulating him, Siwoo’s member gradually swelled and hardened in her grasp.

“Huh? Wait, what?”

It was like watching a larva grow into a hardened chrysalis.

After struggling for a while, Deneb glanced down at Siwoo’s member that she had been holding in her hands.

“W-What’s going on?”

“Oh my…”

“How did it get so big?!”

Deneb’s jaw dropped as she saw that the thing had grown to nearly twice its original size.

It had ceased being soft.

And turned rock hard.

She could feel the strong pulse throbbing through its bumpy veiny surface.

Siwoo’s cock was no longer just a peculiar creature; it was a full-blown monster.

“Is something like this really supposed to fit…?”

Faced with its sheer size for the first time, Deneb couldn’t help but question it.

With trembling eyes, Deneb stared at Siwoo’s dick.

Albireo, equally shocked, couldn’t hide her surprise either.

Neither of them had anticipated it would grow to such an intimidating size.

“It’s not impossible.”

But Deneb’s maternal instincts toward her twins proved stronger than her hesitation.

She had resolved herself to endure this challenge.

Steeling herself, she gripped Siwoo’s shaft with newfound determination.

Her goal was clear: to guide it into her anus so that it wouldn’t slip away repeatedly like earlier.

As Deneb slowly squatted down, the tip of his shaft pressed firmly against her rear entrance.

“Huuu… Huu… Huu…”

Without being told, Deneb instinctively took deep breaths to relax her body.

The entrance, which had initially clamped shut without any give, began to part gradually as the tip applied steady pressure.

“Ahhh-! Hnghh…!”

“Deneb, are you okay? Try to relax a bit more.”

“Do you…think…! This is as easy as it looks…?”

Beads of sweat rolled down Deneb’s forehead as she continued the slow insertion. Albireo, watching with concern, offered her advice.

Truthfully, taking Siwoo’s massive size without preparation or prior experience was practically self-torture.

Siwoo had intended to proceed slowly, having her lie down first, but…

“Ahhhk…! Haaaah…!”

Whether it was the sheer pain or the strain on her thighs from her position, the tightness he felt was far more intense compared to when he penetrated the twins.

“Kuuk…!”

It was like trying to force a ring onto something far too big.

Even with only half of the tip inside, he was convinced it wouldn’t go any further.

“Deneb, maybe you should let Mr. Siwoo take over instead?”

Unable to watch any longer, Albireo suggested this, and Deneb reluctantly agreed.

She realized that continuing like this was pointless.

With her bottom now sore, Deneb sat with her legs pressed together, commanding Siwoo in a curt tone.

“Go ahead, give it a try.”

***

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