Chapter 424 – #90_Verification(5)
#423
1.
“So, what should we do first?”
Deneb placed her hands on her hips and spoke.
Her nightgown, folded left and right like a fairy’s wings, parted in the middle, slightly revealing her long navel.
It was a highly revealing pajama that wouldn’t even make it on public broadcast dramas.
However, despite the revealing attire, there wasn’t a hint of shyness on Deneb’s face.
Differences in perception make people feel differently even from the same experience.
Even if a man enters a women’s bathhouse, it’s different when he goes in holding his mother’s hand at the age of four compared to when he goes in after becoming sexually aware, isn’t it?
For Deneb, relationships between men and women or sexual preferences were too far removed.
For her, this task was merely an extension of a peculiar magic experiment.
On the other hand, for Siwoo, this situation was very awkward and difficult.
No matter how much they talked about magic experiments, it was still an obscene activity of exploring his mother-in-law’s body…
“……”
Due to the strange sense of incongruity caused by the difference in perspectives, Siwoo was at a loss for words. Deneb held up three fingers and declared.
“Don’t even think about trying to gloss over this. Tonight’s experiment will thoroughly analyze every step, from insertion to reciprocating motion to ejaculation.”
“Oh, Deneb…”
Unable to overcome his embarrassment at the explicit experimental goals, Albireo covered her face with her palm.
Siwoo felt similarly, though he didn’t express it directly.
It was the process of accepting something that didn’t feel real as reality.
Anyone who has opened their eyes on the second day of training camp would understand.
“Then…”
Siwoo, his voice cracking with embarrassment, cleared his throat and continued.
“First, you need to lie face down in front of me.”
Siwoo pointed to Deneb’s bed with his hand.
If she bent her body a bit or put a pillow under her lower back, it wouldn’t be impossible to do it in the missionary position.
But he couldn’t bring himself to do it while looking at her face.
He was planning to just close his eyes and finish it with a doggy style.
“…Lie face down? Why should I?”
“No…”
“Are you telling me to crawl on all fours like an animal mating?”
“……”
Sex when your favorability and intimacy are at 0 is this difficult.
What’s even more absurd is that Albireo is also chiming in with Deneb’s absurd objections from the side.
“Siwoo, trying to indulge your preferences even at this moment is a bit…”
“No, that’s not it!”
“Just do it normally. That position is too embarrassing.”
Isn’t it embarrassing to directly try it in the back hole for verification? The words rose to his throat.
He didn’t know what kind of position they considered normal.
He couldn’t even argue about the correlation between anal sex and positions at this point, so he was about to go crazy.
“…Then, I’ll leave it to Deneb’s judgment.”
“That’s better. Lie down over there.”
Deneb, frustrated with Siwoo’s attitude, seemed to have decided to conduct this experiment herself.
As he laid his head on the pillow, Deneb’s scent, embedded in the bedding, wafted up warmly.
Deneb crawled onto the bed and untied Siwoo’s waist string.
From the start, a shower gown wasn’t a very protective garment.
Her hand, which had paused for a moment, parted the overlapping edges of the gown, revealing Siwoo’s limp member.
Deneb took a small breath, just for a moment.
It was the first time she had seen a male member this close.
“First, we’ll need lubricant, right?”
She took out a pre-prepared scented oil.
Since the back hole has almost no fluids except for the small amount of secretions, lubricant is essential.
The high-quality scented oil made from whale oil would perform its role more faithfully than any love gel, so it was the right choice.
Deneb poured half a bottle of the expensive scented oil onto Siwoo’s penis.
She clearly didn’t seem to know that she needed to control the amount.
Soon, a fragrant scent that made his head ache wafted up from his lower body.
Deneb kneaded Siwoo’s member as if she were marinating a strange creature with sesame oil.
Having lived for a while, she had the basic knowledge that it needed to be erect before insertion.
However, no matter how clumsily Deneb kneaded it, Siwoo’s member couldn’t get past the semi-erect state.
Feeling something was wrong, Deneb asked.
“Is this all it gets? The literature said it would become hard.”
“I don’t think so…”
Albireo, who had previously glimpsed Siwoo’s secret meeting with the twins, also tilted her head.
Back then, even in the shadows, it was a stiff and thick spear…
Now, it was like an eggplant dish baked in the oven and seasoned with oil.
But Siwoo had his reasons.
A large proportion of erectile dysfunction in men in their 20s is psychogenic erectile dysfunction.
No matter how pretty Deneb was, caressing his penis, he couldn’t get an erection.
Because if he were to express what he did today in a one-line diary, it would be, ‘I opened the back hole of my virgin younger mother-in-law in front of my older mother-in-law who has no experience with men,’
Which was an absurd situation.
Deneb, oblivious to his feelings, urged him.
“Hurry up and get an erection.”
“It’s not something that happens whenever I want it to…”
“Siwoo, there’s a saying that it’s better to get hit first. Let’s finish this quickly.”
“Haa… I’ll try.”
There was no way he could get away with just glossing over it anyway.
Siwoo closed his eyes and used the full concentration erection breathing technique.
It was a secret technique to gather blood in the corpus cavernosum of the penis by collecting all the happy moments stored in his synapses.
Fueled by his desperate imagination, his member grew rapidly.
Deneb’s eyes widened at the unbelievable growth.
“It, it’s done.”
While secretly thinking, ‘Is it bigger than I thought…?’ Deneb tried to appear calm.
It was the first time in her life that she was trying to put something in a back hole.
Therefore, she couldn’t quite gauge how difficult it would be, but she thought that this size was barely within the acceptable range.
She also gained confidence.
“Hmm…”
However, Albireo still looked at Siwoo’s private parts with suspicious eyes.
Even though he used his special move, it wasn’t completely hard, nor was it completely limp.
It was in a state of semi-erection, as they say.
But the two sisters didn’t have the knowledge to point that out accurately, so it was glossed over.
“I’ll insert it.”
Deneb crawled between Siwoo’s legs and squatted down.
Depending on her posture, her gown parted, revealing Deneb’s smooth chest.
But there was a problem.
“Um… you need to take off your clothes…”
Deneb’s triangle was still covered by her panties.
Although the slit, which was clearly beautiful, was visible, insertion with underwear on was impossible.
“Do you think I’m that stupid? I don’t need to show you everything.”
Deneb snorted haughtily and grabbed Siwoo’s member.
The sensation of her slender fingers, which were firmly wrapped around it due to the lubricant.
What he felt at the tip of his round glans was a slightly bumpy texture, that is, Deneb’s back hole.
It seemed like she had cut out only the back part of her panties.
“Ugh…!”
Deneb, surprised by the hotter-than-expected heat from her back hole, flinched.
Albireo, who had been throwing in a word or two, also closed her mouth and focused on the scene.
It was a bizarre situation, being treated like a living dildo.
But anal insertion in a woman-on-top position, not face-to-face, and having that as her first experience, was not an easy task.
Moreover, Siwoo’s limp penis kept slipping at the docking point, only licking her butt crack.
“Why isn’t it going in?”
It already felt bad to be rubbing her back with a soft, strange creature, and now she wasn’t even achieving her goal.
Deneb’s brow furrowed in dissatisfaction.
“Is this even supposed to go in?”
“Yes, it’s supposed to go in, but…”
“I told you I’d do it.”
“Just stay still, sis.”
Deneb, who had been struggling while squatting, replied curtly to Albireo’s comment.
It was a shocking situation that no Korean soap opera could even compare to.
No matter the situation, a penis is honest.
As continuous stimulation was applied, Siwoo’s member gradually grew and stiffened in Deneb’s hands.
“Huh? Huh? Huh?”
The sensation of a molting larva gradually growing, then becoming a hard pupa.
Deneb, who had been struggling for a while, suddenly looked down at Siwoo’s member that she was holding in her hand.
“W-what’s going on here?”
“Oh my, oh my…”
“It’s completely grown…”
Deneb’s jaw dropped as she confirmed the true nature of the enormous, at least twice the size of its original form.
It was no longer soft.
It was as hard as a rock.
In the meantime, she could feel a strong pulse throbbing from the bulging veins.
Siwoo’s penis was no longer a strange creature, but a monster itself.
“Is this really supposed to go in…?”
It was inevitable that Deneb, who was seeing its majesty for the first time, would have such thoughts.
Deneb looked at Siwoo’s member with trembling eyes.
Albireo was equally astonished.
Neither of them had imagined it would grow that big.
“There’s no reason it can’t.”
But Deneb’s maternal love for the twins was stronger than she thought.
She had decided to endure this much hardship.
Her hand, having made up her mind, gripped his penis firmly.
The target was the back hole that had been slipping repeatedly.
As Deneb slowly squatted down, the head of his penis began to press against her back hole.
“Hoo… hoo… hoo…”
Deneb, instinctively taking deep breaths and relaxing her body without being told, began to open up as the entrance, which was completely sealed, began to press tightly against the head of his penis.
“Hng…! Hiss…!”
“Deneb! Are you sure you’re okay? Try to relax a little more.”
“Do you think this is as easy as it looks?”
Her younger sister, sweating profusely and slowly continuing the insertion, and Albireo, watching her worriedly and offering advice.
In fact, accepting Siwoo’s huge member in the back without any foreplay or preparation was close to self-torture.
Siwoo was also worried about that, so he had planned to proceed step by step after having her lie face down, but…
“Hng…! Haaa…!”
Whether it was because of the excessive pain or because her thighs were too strained in the squatting position, it felt much tighter than when she was a twin.
“Kuh…!”
It was like putting a ring that didn’t fit on a penis.
Even though only half of the head had entered, she was certain that she would never be able to insert it.
“Deneb, how about letting Siwoo do it?”
At Albireo’s words, Deneb gave up.
It was probably because she felt it was impossible as it was.
Deneb, who was sitting with her legs together, perhaps because her buttocks were numb, said curtly.
“Fine, okay. You try it.”
