Saturday.

It was a day off from school for both Shiori and Chika, a day they would normally spend together, cuddling and being affectionate with each other.

"I’m sorry... Chika... I have something to do today..."

"Okay, big sister... I have something to do too..."

But today, both of them had commitments that kept them from being intimate.

"...Well then, see you tonight, Chika."

"Yes. Let’s spend the evening together."

With apologetic expressions, the two told each other goodbye and left the house as quickly as possible.

They headed in different directions, but the destination for both was the men who would assault them.

"Heh heh... Welcome, Shiori-chan."

"Let’s have a great time today!"

"I’m going to make you come like crazy."

"...Uh, uh... uhhh..."

"Hey, I’ve been waiting for you, Chika-chan."

"I’m going to get off on those big boobs again today."

"How should I ask you to serve me today?"

"Uhhh... Uhhh..."

In a park near their house, at the designated meeting place, Shiori and Chika each went to the men who were waiting for them. Several men stared at each sister with lecherous, leering smiles, their eyes lingering over her face and body, and she trembled with shame and humiliation.

"Heh heh... Well then, I’ll tell you what we’re going to do today."

"Ah... the question is where we should have fun today..."

Seeing the two trembling, the men grinned and then slowly began to speak.

"Today, I was thinking of having some fun at Shiori’s house. Sorry to have made you come all this way, but... let’s go home."

"Today, I’m going to have some fun at Chika and Shiori’s house. Come on, let’s go quickly, Chika-chan."

The men declared to the sisters that they would commit the act at the two women’s homes.

"Huh...? Th-that’s impossible..."

"N-no way...!? That’s... impossible..."

Shiori and Chika gasped in surprise at those words. Although the location of their house had been known for a long time, it was still the only place of peace where each could be with the person she loved.

"...Uh, uh... I understand..."

"Uh... y-yes..."

The sisters tried to refuse the idea of even that place being used to defile them, but it seemed they no longer had the energy to resist, and they quickly and reluctantly nodded in agreement.

"Hehe... Alright, let’s go, Shiori-chan. I bet today will be especially fun."

"It’s settled then. Let’s go right away, Chika-chan. I’d like to take a good look at the underwear you have at home. Heh heh."

After the two nodded, the men at each location grinned, put their arms around the girls’ shoulders, and began walking toward the sisters’ house.

"Uhh..."

"Uhhh..."

As Shiori and Chika retraced their steps and headed home, they felt their bodies tremble from the men’s embraces and the heat of their bodies pressed against them. Because both were looking down, their gazes were directed toward the ground, but...

"Hey, Shiori. Take a look ahead for a moment."

"Chika-chan, look ahead. Look ahead."

"What...?!"

"Something...?!"

The men urged them to do so when they arrived in front of the house. The two lifted their heads and looked ahead.

"O-older sister...!? Why...!? Th-those people...!"

"C-Chika...!? W-why are you here...!? Those people..."

Each was surprised to see the other, whom she thought was out somewhere and therefore not here.

"Heh heh... Shiori-chan. Actually, I’ve been having fun with Chika-chan’s body all this time too."

"Chika-chan. Regardless of what happened to you, I’ve been raping Shiori-chan all this time. Heh heh. Today it’s Shiori-chan, the next day it’s Chika-chan... like that, alternating. I thought they’d notice someday, but I never imagined they’d actually not notice until now."

Seeing their surprised faces, the men smirked and shouted this.

"Th-that can’t be... Even Chika... no way..."

"Big sister is still... wait, no way..."

On the other hand, having been told the fact that both had been violated, Shiori and Chika were frozen in shock and surprise. Yet at the same time, something in them appreciated that the men had gone to the trouble of revealing this truth. Then, perhaps sensing what was about to happen, they raised their trembling voices.

"Ah... just as I suspected, I’m going to rape both sisters today."

"I thought it was about time we got the two of you together. Heh heh."

"To be able to have sex with both of these beautiful sisters at once... this is the best."

"It’s Saturday today, so I’m going to have a blast and do it to the fullest without thinking about the consequences."

"Hehehe... I wonder how I should have fun."

As if to confirm that what the two had realized was correct, the men grinned and uttered those words, filled with lust.

"Ah, ah... uh, uh... to be with Chika..."

"Th-that’s... together with my big sister..."

"Okay, let’s go inside the house for now. If we stay here forever, we’ll stand out. Hehe. Let us into our love nest already."

The sisters were to be raped together. With their arms around the trembling shoulders of the two, the men entered their home.

"Ah, ah...! Ahh, ah, ah... ah, hmm, mmm...!"

"Hiii, mm...! Mmm, ah... hah, mm... mm, ah, ahhh...!"

"Come on, come on... Come on!"

"Hey! Hey, hey!"

And inside the house, in the living room, Shiori and Chika were immediately subjected to assault.

"Hii...! Mmm, ah... ah, ah, aaah...! Ah, hiii, hiiiiii...!"

"Mmm, ah... ah, ah...! Ah, ahh...! Ahh, ahhh...!"

They were both stripped of their clothes and left completely naked. They were made to face each other so that they could see each other’s faces, and then made to get into a quadruped position. A penis was inserted into each of their vaginas from behind and thrust into her repeatedly.

"Mmm, ahh...! Chika... ah, kuh...! Mmm, hah... mmm, ah, ahh...!"

"Oh, big sister... Ah, ahh...! Ah, ahh...! Ah, ahhh...!"

Toward the loved one right in front of them, the two tried to call out each other’s names, but their voices were drowned out by the sensations emanating from their vaginas, and they ended up moaning at each other.

"Hehe... Your pussy is especially tight today...!"

"Are you both getting turned on by being fucked together?! Heh heh, that’s good... Come on, come on!"

The men inserting their penises into the sisters’ vaginas groaned with excitement and pleasure at how well the two organs were functioning. Driven by their rising excitement, they grabbed both of the girls’ waists and thrust their cocks deep into their vaginas, slamming them in repeatedly.

"Ah, ahh...! Ah, ah, ahh...! Ah, ahn, ahh, ahhh...!"

"Mmm, haaah...! Ah, ah, hyaah...! Hya, ahh... ah, ahh...!"

Shiori and Chika felt the intense thrusting and continued to moan. At first, the pain was stronger than the pleasure, but as they continued to be violated, their bodies inevitably became accustomed to it, and each time the penis thrust into them, they moaned and felt pleasure.

On the other hand, the other men who were not raping the two rummaged through everything in the house.

"Heh heh... You have some pretty cute underwear, don’t you?"

"I’ll have you wear these undergarments later. Hehehe."

"This one’s the sexy type, huh? Is this what they call lingerie for special occasions?"

"She wasn’t wearing it in front of us. I guess I’ll have her put it on later."

"Our cups match. Hehe, they’re cute."

"We even have matching pajamas."

"They’re really close sisters. That’s nice."

"We’re lucky enough to have such beautiful, close-knit sisters... We’re even better off."

They rummaged through the dresser, picked up underwear, and gave lewd smiles. They enjoyed looking at small items and clothes on drawers and desks, smelling them, and rummaged through the house as they pleased, searching through the sisters’ belongings.

"Ah, ahhh...! Ah, ah, ahhh...! Ah, ah, ahhh...! ♡"

"Ahh, mmm...! Ahh, ah, ahhh...! Hya, hiii, mmm...! ♡"

Seeing their belongings being rummaged through at will, Shiori and Chika felt ashamed, but they could only moan, unable to withstand the sensations emanating from their vaginas.

"Alright, alright! Let’s go, Shiori-chan!"

"This is the first time I’m going to come inside you today! Here we go, Chika-chan!"

"Ahhh, ahhh! ♡ Ah, ahn, ahhh...! ♡ Ah, ahhh! ♡"

"Hii, nnhaa...!♡ Ahh, ah, ahh!♡ Nhya, hyah, hyah...!♡"

Before long, the sweetness in their moans mixed with the stimulation of the penises, and the two sisters were simultaneously ejaculated into by the cocks that had been thrusting and pounding inside their vaginas.