Though the whole situation was honestly a bit ridiculous, Ryuji wasn't sure if 2B truly wanted to return to her world—or if she simply wanted to extract his genetic information.
Still, looking at 2B's serious expression, Infront of him, he agreed.
After all, it was her request, and he wasn't one to pass up a freebie.
Rin wanted to roll her eyes but found herself at a loss for words. This was exactly what they needed to verify—though none of them really wanted to resort to this method to leave. If push came to shove, though, she supposed it was the only option.
So after 2B made her decision, Rin planned to leave with Mai and a girl who called herself Kiki to search for another way out.
Ryuji even lent them the motorcycle that Kiri had brought, while Rias had no intention of joining the search. She'd already given up on returning that way—and the more she explored this world, the more likely it seemed she'd be forced to become its ruler.
So she chose to practice her magic somewhere else.
Meanwhile, 2B naturally chose to do that thing with Ryuji, so Rin and the others stayed behind, wanting to witness how 2B would return to her world.
But—
"Are you really sure about this?" Ryuji asked, glancing at 2B inside the room for a final confirmation.
He wasn't being fussy; he just didn't want any regrets afterward.
After all, this was a deal. If someone backed out later, it would cause a lot of trouble.
Someday, he might travel to the worlds of the girls he made deals with—like Lux's world—and maybe even search for some miraculous power there. At the very least, he'd tour around as a souvenir of the years he spent playing League of Legends.
He had already chosen a life of freedom. Unless his lifespan became an issue, there was nothing left to worry about.
Meeting girls from different worlds was one of his desires too.
"Please don't feel any psychological burden. My body can have its parts replaced," 2B said calmly as always, though she paused for a moment.
"However, if you want me to serve you with my mouth, I can do that too. It will add some pleasure to this operation."
She said this seriously, even as she began to undress.
"Well, since you put it that way," Ryuji scratched his head and reached out to stop her from taking off her upper clothing, tight bodysuit, thigh-high boots, and over-the-knee socks.
"Just stay like this."
Looking at 2B, who had only loosened her skirt, he gave a thumbs-up.
2B didn't seem surprised by his request. She parted her upper clothing, revealing her perfectly sculpted form, swaying slightly in the air.
For some reason, androids possessed all the sensory functions humans had and even mimicked them down to the finest detail in their bodies.
Ryuji observed clearly how the cold air caused subtle changes in those beautiful curves.
Why would a combat robot have such a feature?
He didn't understand, but it didn't stop him from enjoying the sight.
He reached out, touching her chest with his hands and found that the skin exquisitely smooth and supple. It felt indistinguishable from human skin—warm, soft—and even carried a faint fragrance when he leaned closer.
If he hadn't known from the start that 2B was an android, and she herself didn't deny it, he wouldn't have been able to tell the difference.
Not only was the touch perfect, but…
As he caressed those pink nipples, Ryuji noticed a subtle reaction.
The response was just like a real person's.
Except there was no heartbeat.
"All right, which position do you prefer?" 2B asked naturally, showing no displeasure at his actions. Actually, besides keeping the secret that her true model was Type E—a fact that made her uneasy—she was genuinely happy and joyful.
After all, androids existed to serve humans.
To give everything for humanity.
"Do you have a favorite?" Ryuji asked for her opinion.
"No. Please use me as you wish."
2B shook her head gently. Ryuji naturally cupped her chin.
"In that case, I won't hold back."
He pressed his lips to hers, this time taking the initiative—invading her mouth.
2B savored his taste as her CPU furiously recorded the data, comparing all his information again.
Undeniably, human.
Instinctively, she wrapped her arms around Ryuji's body. Legends said humans embraced each other during intimacy. Though she felt she couldn't compare to humans, she wanted Ryuji to have the best experience possible.
And indeed, Ryuji received a warm response—2B's tongue was surprisingly skilled, responding fluidly and softly, taking over the rhythm after his initial advance.
It was like her attack intentions were completely seen through, and instead, she led him to enjoy the exquisite sensation.
After pulling away, both were breathless.
Amused, Ryuji grabbed 2B's legs, lifting them up.
In this world, his energy was incredibly abundant. If he didn't distract himself with exercise, his mind would be full of women. He was more than ready.
And so was 2B.
Ryuji laid her down on the bed. With his help, she spread her legs obediently.
The contrast of her pale thighs against the black thigh-high boots and stockings was stark and beautiful.
Ryuji's eyes landed on the tightly closed entrance of her vagina.
He reached out, gently teasing her with a finger. The touch was soft—softer than any normal woman's—but felt entirely natural.
As he touched her, 2B's body trembled slightly, and she bit her lip unconsciously.
Because it felt good.
Not just the sensation from her synthetic parts, but the joy spreading through her mind.
She couldn't help but make a sound.
Where he had touched, a slippery liquid appeared.
Ryuji pinched some between his fingers and sniffed—it had no unpleasant odor, only a faint, pleasant fragrance.
At that moment, 2B spoke.
"Ah… this… this is usable… ah…"
Seeing that 2B had stopped moving but was still breathing heavily, clearly sensitive beyond normal, Ryuji chuckled softly.
Because it seemed…
2B was even more sensitive than Tsunade!
Come on, evil machine! Time to show you the power of a human!
Watching the wetness at 2B's pussy, Ryuji gently wiped the flowing fluid before slowly entering her.
To his surprise, it was easy.
However, he clearly felt that when he entered 2B's body, he pierced a layer of something, and 2B bled a little.
"Ahhh!!"
She clung to Ryuji, overwhelmed by an indescribable, euphoric pleasure—far surpassing anything she had ever experienced.
Only one thought filled her mind:
"I am being used by a human!"
She cried out involuntarily. She hadn't understood the meaning of this before, but now that Ryuji was inside her, she finally did.
That uncontrollable flood of emotion and pleasure overwhelmed her brain—causing unconscious outbursts, much like the rage cries she'd utter in battle.
At this moment, she couldn't think straight.
All she knew was that she wanted to satisfy Ryuji and—
To show herself off a little so he'd want to use her more.
Though that thought made her feel somewhat shameful, she had no time to dwell on it as Ryuji started to moving again.
Slowly thrusting, Ryuji immediately sensed 2B's change.
Every muscle twitched, every inch of her soft channel pulsed to maximize his pleasure.
More than that—
Those supple muscles squeezed fiercely, making him feel like he might suffocate.
Those muscles moved constantly—within the narrow tunnel, it was as if thousands of tiny hands caressed him simultaneously!
It wasn't an illusion—it was a real sensation.
2B's design was meant for serving humans. Naturally, she was programmed to provide maximum pleasure.
And once they resolved the feeling of being embraced not quite like a human, the mechanical power clearly surpassed anything evolved by mankind itself.
The intense stimulation nearly stole Ryuji's breath away.
A virgin's first time was often uncomfortable—too tight, bordering on painful for both parties.
Older women could be lackluster, their muscles slack, unable to provide that gripping tension.
But 2B was neither.
Her perfect tightness, that indescribable sensation—like being swallowed by living tantacles—
Ryuji struggled to breathe, yet couldn't stop himself from thrusting deeper.
And for 2B, the experience was a hundred times more overwhelming.
"Ah... ah~!"
Every time he struck deep into her core, hitting the very entrance designed to collect genetic material, her processors threatened to short-circuit.
Now she finally understood why so many androids envied those who lived with humans. She had once felt that reverence too—a worshipful admiration for beings akin to gods.
But this... this was different.
Humans were divine. They could gift androids sensations no machine could ever replicate.
This bliss, this euphoria—it shattered her emotional regulation protocols. If not for the blindfold, Ryuji would have seen her eyes rolling back in pleasure.
Overwhelmed by sensations beyond her programming, 2B reached her climax before Ryuji could even cum.
"Ah~! H-human... sir...!"
Her legs clamped around his waist with enough force to trigger her internal alarms—then trembled violently as a flood of warmth gushed out.
The sudden contraction pushed Ryuji over the edge. The moment his body began to convulse, the specialized device inside 2B activated, suctioning every drop of his release with terrifying efficiency.
The suction was so intense he couldn't even maintain his expression. Collapsing onto 2B's chest, he shuddered through waves of unbearable pleasure.
As the last of his sperm was collected, 2B's systems registered something entirely new—happiness, satisfaction. Her fingers instinctively threaded through Ryuji's hair, stroking gently as she savored the aftermath.
Which, unfortunately for Ryuji —still buried inside her—meant her inner walls began pulsing again.
"Huh...really...you are also immersed in it, do you like this feeling so much?"
Despite his exhaustion, his body's recovery in this world was absurdly fast. Though his heart still pounded, his stamina had already returned. With a smirk, he pinched one of 2B's peaked nipples.
"Yes... Master Ryuji ."
Her voice remained calm, but the faint tremble betrayed her eagerness.
Ryuji glanced at his energy points—now inexplicably increased by [800]—and fell silent.
If these points truly scaled with emotional intensity during sex...
Well.
He finally understood why so many gods in faith-based systems loved sleeping with their devotees.
The payout was insane.
"Then I won't hold back."
With a grip on 2B's thighs, he resumed his relentless pace.
Outside the room, the reactions were... mixed.
"An hour. They've been at it for a full hour. How is his dick not broken yet?! Is it really that good?!"
Rin massaged her temples, glaring at the distant (yet still audible) bedroom. She could cast a soundproof barrier, but that would waste her precious gems—unacceptable in their current situation.
What baffled her more was why Rias, calmly reading a book beside her, refused to cast one herself.
Rias had her reasons.
She needed to gauge Ryuji's... stamina. Not to be a good bed partner, but to see how long it takes him to be completely satisfied so that she can be mentally prepared.
Something told her that while other women might leave this world easily, she wouldn't be so lucky.
As someone who could commune with the World's Will, Rias sensed a deeper mechanism at play. Ryuji 's "return" likely hinged on contracts—specifically, bonds that intertwined their existences.
Physical intimacy was just the surface. The true requirement was a pact.
And contracts had tiers.
Luxanna Crownguard, although she did not sacrifice her purity and was not troubled by the will of the world, it was mainly because she was not noticed by the world consciousness.
But Rias was different. She was the one who had absorbed the most power from this world's dimensional energy. She stood at the center of attention, under the spotlight of the world's consciousness.
If a deeper, more binding contract was required…
Then perhaps something that only true partners—husband and wife—would do was inevitable.
Which meant: understanding Ryuji's limits was essential.
After all, he was clearly a man of strong principles... but also extremely, even dangerously, lustful. To form a contract that transcended the surface and connected them at a deeper level, complete satisfaction on his part seemed non-negotiable.
And judging by the sounds coming from that room…
It wouldn't be easy.
Even without magical reinforcement, he climaxed every three minutes for over an hour—and it didn't seem like he was stopping anytime soon. Even Rias was starting to feel nervous.
What made it stranger was that, with 2B, Ryuji hadn't lasted even three minutes—despite having clocked a solid fifteen minutes before with someone else.
People liked to boast about twenty or thirty-minute sessions, but for a regular human, anything over twenty minutes was pushing the limits of physical safety.
Rias did the math. If it really came to that… it could take an entire day to satisfy him.
A daunting thought, even for a devil like her.
She wasn't some specialized succubus, after all.
Sure, she could enhance her stamina with magic and easily endure for hours—but she disliked the idea. Historically, devils had used magical enhancement to serve humans' physical desires, and ever since learning that, Rias found the idea distasteful. It felt too much like… working a job.
Far away, Rin had no clue what Rias was thinking. She was just bored, chin resting on her hand, sighing as she waited for Ryuji to finally emerge.
The noises from the room had long since devolved into relentless moaning.
And that's when Mai —whose face had been beet red from the moment things started—finally broke her silence.
"M-Maybe it's because Ryuji-san has great stamina… and, um, strong desire… It's kind of… enviable, actually."
She said it earnestly, but Rin looked at her like she'd lost her mind.
"Seriously? You envy that?"
Rin was genuinely confused, but the embarrassed look on Mai's face was quickly replaced by a surge of frustration.
"Of course I do!"
She clenched her fist and slammed it against a nearby rock.
"In my world, none of the male fighters are interested in women!"
She was referring, of course, to Andy. No matter how provocative her outfit—a battle uniform that practically screamed "tempt me"—the man she liked acted as if he hadn't even seen her!
True, the outfit had originally been designed for seduction back in ancient times. And yes, she had made sure it wouldn't suffer any wardrobe malfunctions during a match. But it was still plenty revealing—
—Yet it didn't seem to work!
Ordinary people might give her a second look, but fellow fighters? They were too focused on training, or chasing the thrill of battle.
As a martial artist, she admired that dedication.
But as a woman?
It was infuriating.
To be ignored so thoroughly… it made her feel invisible.
"All the male fighters are just... wooden blocks!"
~~~~~~~
Bonus chapter every 200 PS.