"Really? Can I really do it?"
Hinata's usually timid and uncertain eyes suddenly lit up with newfound hope.
"Of course! How about this—I'll personally train you for a few days. By the time we're done, you'll definitely be stronger!"
Goku had long since set his sights on Hinata as one of his future women, so there was no way he was going to let her stay timid and lacking confidence forever.
"You… You'd really teach me ninjutsu?" Hinata's voice was filled with both excitement and doubt. "That's amazing! But… what if I'm too slow to learn?"
"Don't worry, I believe in you!"
"Mhm! I'll do my best!"
Looking at Goku's warm smile, the hesitation in Hinata's eyes gradually faded, replaced by a firm determination.
"Alright then, let's get started right away!"
With a thought, Goku transported both himself and Hinata into his World Ring.
"Ahh! W-What is this place? How did we get here so suddenly?"
Hinata gasped as she looked around at the luxurious and brightly lit hall they had arrived in. Her small mouth opened slightly in astonishment.
"I'd like to know as well," a familiar voice chimed in. Mikoto was standing behind Goku, gazing at him in confusion. "You called this place your dimension?"
Goku smiled. "Think of it as my own personal world. Everything here is under my control."
"A world… under your control?" Mikoto's eyes widened in shock. Was something like that even possible? Could Goku be some sort of creator god? No… that was too absurd to believe!
"Wow! That's incredible!" Unlike Mikoto, Hinata wasn't questioning the logic behind it—she was simply amazed. " If I train with you here, I'll definitely become strong!"
Just then, Mikoto suddenly realized something. She glanced at Hinata, then turned to Goku with a stunned expression. "Wait a minute… isn't she the Hyuga clan's heiress? Why did you bring her here? Don't tell me… you… you're not planning to—"
Mikoto's eyes were filled with suspicion and disbelief as she took a step back.
Goku rolled his eyes. "Wow. You look all graceful and gentle, but I didn't expect your thoughts to be so dirty! I only brought her here to train."
Mikoto's face flushed red with embarrassment.
__
Leading both girls to a strange-looking door, Goku gestured toward it. "This is the Hyperbolic Time Chamber. One year inside is equal to just one day in the real world. We'll be training in here for a while."
"An entire year inside equals one day outside?" Mikoto's mouth fell open. "There's really a place like that?"
"You'll see for yourself soon enough."
Opening the door, Goku stepped inside with the two girls following behind.
Once inside, Mikoto was utterly speechless. "T-This… How is this possible? It's just a small room on the outside, but in here, it's an endless, vast space!"
"It's huge!" Hinata exclaimed excitedly. "Big brother Goku, are we really going to train here?"
Goku turned to her and smiled. "By the way, from now on, call me 'Goku-nii' instead of 'big brother Goku.' Got it?"
Hinata nodded shyly. "Okay, Goku-nii!"
"Good. Now, let's begin! First, I'll teach you how to control Ki… and Mikoto, you're joining in too."
___
Mikoto took only three days to learn how to fly using Ki—perhaps because she was already trained in chakra control, mastering this new energy wasn't too difficult for her.
Hinata, on the other hand, took five days. Though her prior experience with chakra helped, her strong determination and natural talent played an equally important role. The fact that she managed to learn Ki control and flight in just five days proved that she was a prodigy in the making.
After teaching them the basics of Ki, Goku increased the gravity inside the chamber to twice the normal level and began training them in hand-to-hand combat. He continued raising the intensity gradually, but he stopped short of increasing the gravity further—he didn't want them to turn into overly muscular fighters!
By the time they completed their training, they had spent a total of fifteen days inside the Hyperbolic Time Chamber. However, since time passed differently there, only a short while had passed in the real world.
The results?
Mikoto and Hinata had both grown significantly stronger.
Hinata, in particular, had improved at an astonishing rate. She was now strong enough to hold her own against an elite Chunin—a feat that would have been unthinkable before!
--
After finishing their training, Goku took Hinata back to her academy. Though fifteen days had passed in the chamber, in the real world, barely any time had passed at all. The academy hadn't even started classes yet.
Once he saw Hinata off, Goku returned to his World Ring. His training with Mikoto had brought them much closer, and with the other girls away at the moment, he figured this was the perfect opportunity to… deepen their relationship.
At that moment, Mikoto was in the main hall, absorbed in a book. Her focused, mature demeanor exuded an irresistible charm. Goku's eyes sparkled as he silently approached her from behind.
He wrapped his arms around her waist, resting his chin on her shoulder.
"Mikoto," he murmured, his voice low and warm, "you really are beautiful."
Startled, Mikoto blinked, then turned her head slightly.
"Goku? What are you—" she began, but stopped when she saw the look in his eyes. Her cheeks flushed, though she tried to maintain her usual composure. "You're acting strange today..."
"Strange?" Goku smirked. "Maybe. Or maybe I'm just finally being honest about how I feel."
Before she could respond, he gently but firmly guided her onto the nearby sofa.
"H-Hey! Wait a second—!" Mikoto protested, though her voice lacked its usual sternness.
Lying on the sofa, their bodies were tightly pressed together without even a sliver of space between them, her soft boobs were squished until their shapes completely deformed but despite the tight hug she didn't feel any pain instead all she felt as her nipples rubbed against his chest was pleasure.
She held one of his leg between her thick and soft thighs tightly as she felt his leg lightly brushing against her vagina, even though Goku didn't move his leg at all yet Mikoto couldn't help but move her waist ever so slightly, rubbing her vagina against his leg, trying to get rid of the itch that just continued to grow inside her vagina.
Goku's hands were wrapped around her body, he was pulling her closer with enough force that she won't get hurt.
The windows were all tightly shut, Goku waved his finger to turn the switch for lights off, instantly the hall became dim he felt even more excited because of it, but despite being so close he still felt something was missing or as if it was still not enough he wanted to be as close as possible to Mikoto, almost as if he wanted to merge with her.
As he realized this, Goku understood that it was their clothes that were coming in the way of his fully enjoying the warmth of Mikoto, he pushed his body back a little and pulled both of their clothes away, the sound of clothes tearing was sounded and within seconds both of them were naked.
Goku's lips enveloped Mikoto and she gently pulled his lips into her mouth and sucked them, licking them with her wet tongue and then lightly nibbling on his lips.
Goku felt Mikoto hungrily kissing him, her lips rubbing and pressing against his own, even before their tongues could involve it felt like such a passionate and sultry kiss.
Mikoto continued to slightly wriggle in his arms, as their warm skins rubbed against each other, her nipples had already turned hard because of her excitement and now they were pressing deeply against his chest, rubbing constantly.
She squeezed and rubbed her legs against his even tightly and felt her body tremble as her slightly glistening petals pressed against his thigh and then he began to rub against her, pressing against her pussy, Mikoto felt a little tingling sensation as she felt her belly rub against his such an intimate contact made her embarrassed, she had never felt so close to Goku.
As his cock began to grow, Mikoto felt it pressing against her lower abdomen, her lust increased significantly as she allowed his burning cock to rub against her soft belly, as it pressed between their bodies she could feel how it grew to its full length while the itch inside her vagina increased to an unbearable level.
Her plump red lips parted, just as she moved her tongue forward and used it to open his lips and then pass between his teeth.
Mikoto felt as if she was about to melt, her tongue was enveloped inside the warm embrace of his mouth, she swirled her tongue around tasting his saliva. she couldn't help but pull her tongue back for a moment while pulling along the mixture of their saliva, she enjoyed the sweet taste before gulping it.
A satisfied sigh escaped from Goku mouth, as her eyes were shut tightly and she felt the bliss spreading all across her body, without wasting a moment, Goku pushed his tongue back into her mouth and began to entangle it, their lips were pressed tightly together not letting even of their saliva to leak.
"Mmmmm~ hnnnnn~"
Goku bit down her tongue as soft and muffled moans escaped from Mikoto's lips, he nibbled on her soft tongue as if a sweet juice was leaking out of it, he really enjoyed this type of things with his women.
Their tongues were moving from one mouth to another, the mixture of their saliva filled the mouth of both Goku and Mikoto, the sound of their gulping continued to ring, their bodies snuggled close increasing the temperature of the surrounding.
After a long time when her tongue started to feel a little sore Mikoto finally pulled her tongue out of his mouth, she was panting heavily, by now warm juices were leaking out of her vagina, turning his leg wet with the nectar.
In the dim light, she stared at his face feeling her heart flutter, they were both very close to each other.
Goku inhale her scent with desire, gently caressed her cheek before planting a loving kiss on her cheeks, burying his face into her neck and planting light kiss on her skin he mumbled softly:
"I love you, Mikoto. I love you so much."
While speaking he sucked her skin possessively, pulling her milky skin in his mouth he bit lightly on it and sucked until he was sure that the mark of his love had appeared over her neck, then he licked it to make sure she don't feel any pain.
As he muttered words of his love over and over again, he continued to kiss her neck all around, tasting her skin starvingly, his tongue licked all over her neck.
Goku's hands were caressing and rubbing her smooth back, with just a slight pressure he felt his finger and palm sinking into her flesh while enjoying her neck, her plump body felt really great, extremely soft all over.
When his hands moved from her back to her butt, Mikoto also moved to kiss his chest as if she also wanted to mark his body, and claim him as her own, she paused for a moment as Goku suddenly gripped her butt cheeks as a mild moan came out of her lips but then she continued to suck and kiss his skin just as passionately.
From all these kisses and caressing, the lower bodies of both of them were going wild, his penis was rubbing against her body while her pussy was secreting more and more juices, while the itch inside her continued to grow.
____Important_____
Translator's Note:
This R18+ chapter, as well as similar ones that may appear in the future, are not entirely my original creations. I have adapted and edited content from other novels to better fit the scenes and flow of this story. Please understand that I'm not claiming full credit for these sections—I've simply reworked them to suit the context.
I admit that writing R18 scenes is not my strong suit, so I chose this approach to maintain quality and consistency. I hope you enjoy the content, and I kindly ask that you refrain from accusing me of plagiarism, as my intent is only to enhance the experience for readers.
Thank you for your understanding and support.