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A little after Izanami and Izanagi became 4 years old, Shun and Hinami found opportunities to have either Kanna or Miyako babysit them while they enjoyed their alone time.
They either spent this time training, relaxing, or having sex. Shun and Hinami had discovered the joy of outdoor sex a little while back.
It all started with Shun suggesting it as a joke until he actually initiated it while covering their surrounding with an illusion. Hinami had no idea of this and was quite embarrassed at the prospect of possibly being caught.
She became mad at him afterward but after a little bit of coaxing, she decided to try it once more. As time went on, Shun stopped using the illusion in order to personally feel that thrill, although he kept his sense active in case.
Today, he and Hinami skipped training and had a moment of hot sex a little bit far from the village while, as they were returning, they passed by the riverside.
Only then did he notice someone in the river up ahead. Only their shoulders and head were sticking out and it looked like they were holding their breath.
Hinami swiftly crouched down and hid behind a nearby rock and she gestured for Shun to do the same.
'Oh, I get it, hehe' Shun thought.
Due to the fact that they just had sex outdoors, Hinami felt that they may have been caught.
He hid behind the rock, but then the tension drained from Hinami.
When he looked closer, realized he recognized the person in the river.
"Oh, it's just Ria."
Was she bathing? She was scooping up water and pouring it over her shoulders with a relaxed expression.
'She did work all day long.'
Meanwhile, he had spent all day having sex.
He felt bad about that, but he also could not keep his eyes off her here.
A certain attraction prevented him from doing that.
The water glittering in the starlight poured down her smooth skin and down into the cleavage between her large breasts. Disappointingly, the rest of her was hidden in the river.
Hinami noticed him leering and tugged on his clothes.
"Let's go. Peeping is a bad habit."
"I-I wasn't trying to peep."
"Liar. You were staring as hard as you could."
"Only because it's dark and I couldn't tell who it was!"
They argued back and forth in whispers.
But she was right and they had to leave. If he was alone, he might have stayed to watch, though.
"Is she really safe here all alone?"
"She is. The village isn't far, so- you don't give up, do you!?"
"I didn't mean it like that! I really am worried about her."
Another whispered argument broke out.
Then he heard some splashing water as Ria stood up from the river.
'Oh!'
He turned that way on reflex.
He had seen Ria naked some time in the past, and that was a sight he would welcome any number of times.
And there was something special about it when she was completely unguarded like this.
"See, you were trying to peep!"
Hinami grabbed his head and turned it away from Ria.
"Ow, ow, ow, ow, ow! L-let go! I only turned because I heard a noise!"
They began to physically grapple this time.
Then they heard a sweet and longing voice mixed in with the flowing of the river.
"Shun…"
Thinking he had been caught, his heart skipped a beat and he tensed, but that was not what had happened.
"Ahh…not even bathing was enough to extinguish this heat. I just can't stop thinking about him."
Still standing, Ria came to a stop and reached a hand toward her crotch.
She produced a wet sound much stickier than the river.
Her lovely fingers rubbed at her vulva situated just above the flowing water.
"Nh…ahh…S-Shun❤"
His heart skipped another beat upon seeing her masturbate at the thought of him.
"Ah, ahh…first yesterday and now today…nh❤ I keep having to extinguish this flame on my own…nh, khh!"
'Yesterday? Did she peep on us last night without me being unaware?' Shun thought
Thinking back, she was a growing lady and her growth spurt should have already arrived, with that, her sexual desires should have been awakened.
She must have suppressed the growing desire within herself and then found someplace to masturbate like crazy.
'I feel bad now.'
And it was happening again tonight.
He had made her wait all along, so she had needed to take matters into her own hands here.
Then he felt a shove on his back.
"I will head back first!"
He looked back to see Hinami standing up.
She would not look him in the eye and turned away from him while scratching bashfully at her nose.
"Don't stay out too late."
With that, she vanished beyond the bushes.
"H-hey! What's gotten into-"
"S-Shun!?"
Ria spoke up in surprise when she saw him staggering out onto the riverside.
She covered her chest with one arm and her crotch with a hand held between her thighs.
"Y-you saw?"
"Gh…"
He was unsure what to say when she asked that.
But she took his silence as a yes and frantically defended herself.
"I-I'm only, um…don't get the wrong idea! I…don't usually do this kind of thing!"
The way she blushed and tried to deny it was really cute, so he felt a stirring in his crotch.
"After all the time we have spent together, I don't see why this should bother you. Especially after you've seen me naked" Shun said
"B-but this is different…" Ria defended
"And what is 'this' exactly?" Shun asked with a mischievous smile
"Well, um…" Ria stammered
She tried to find the words but eventually gave up on finding another way to phrase them.
"D-doing it myself!" She finally answered
That was the least vulgar way she could find to say it, but saying it only made her more embarrassed. The flushing on her face spread down to her chest as well.
"You weren't done yet, were you? I'll join you." Shun said
He had never masturbated with a girl before, so he had to wonder what that felt like. He just knew it would be hot as fuck!
"U-um…"
"If you're too embarrassed, we can do it here."
Ria froze up as she stared at Shun openly stroking his dick, so he took her hand, had her sit down in a shallow part of the river, and then sat across from her.
Then he grabbed the erection sticking up above the water.
"C'mon, you do it too."
He rubbed his thing while guiding her hand to her feminine part below the water. After a moment of hesitation, she began elegantly moving her fingers.
"Nh❤"
She produced rings of ripples that shook the reflected starlight.
Below that, her plump white thighs were slowly spreading.
More and more heat filled her breaths.
She lost herself in self-pleasure while Shun did the same.
Her finger pressed against her clitoris and rolled up and down along it.
"Kh…hh."
"I bet it would feel even better if you looked me in the eye as you did it," Shun said
"That would be…even more embarrassing than sex." Ria said with blushed cheeks
Nevertheless, she raised her head to look straight at him.
"Ahh❤"
She gasped and a tremor ran through her body.
"Ahhn, I can feel it. Hh…i-it's like you can see…e-everything in my mind right now…nh, khhh❤"
She started lifting her hips, adding some splashing to the spreading ripples.
"Hh…ahn…m-my body feels…so hot…ah, ah…I can't stay still."
Her two extra-large boobs were jiggling up and down before his eyes.
Just watching this was nearly impossible and the look in her eyes was begging him to do more.
'But I have to resist. I have to watch until she makes herself cum!'
To calm his impatience, he brought his lips to her face. She reached her own head out to receive them.
Their soft lips touched and they pressed their tongues together. When he sent saliva into her mouth, she swallowed it all and sucked even more out of his mouth.
"Pwah…"
"Ah❤"
They both sighed and she resumed masturbating while their kissing continued.
She used three fingers now and moved them in sequence to stimulate the sensitive flesh bud. Her thumb and little finger were left extended on either side.
Her legs had gone entirely limp and were spread wide.
"The more you kiss me, Shun…nh, ahh…the more my pussy…ah, ahh…throbs! And the more heat fills it!"
She teased the area between her legs even more strongly while she said that.
He had to support her with both arms while she started splashing the water even more from her movement and he ran his tongue along her lips, neck, and chest.
He opened his mouth wide to suck at the areola like he was trying to devour the entire soft tit.
"Ahhhhhhhn! S-Shun…if you do that…!"
She actually asked him for it this time.
"M-my own fingers aren't enough!"
"I know, but keep at it a little longer."
He slid his body down and lowered his head toward the water so her pussy was right in front of his eyes.
"Now keep going to the end."
"B-but you're watching from so close…"
"Spread it with your fingers so I can see inside while you do it."
"…!"
Imagining that sent a tremor through the girl's butt.
"U-um…like this?"
Her spread legs trembled while she spread her labia with her fingers. She was hesitant, but she did not stop.
He could see her salmon pink vagina right in front of him.
Sticky strings connected the spread flesh together and they would occasionally break and turn to drops of nectar.
The thin streams formed by the drops gathered together, formed a larger river of nectar, and flowed on out of her.
"Continue. This time stick your finger inside."
"O-okay…ahhn❤"