Chika began servicing the men as she was ordered.

It started with a tit job, and then Chika was made to use every part of her body to serve him—her mouth, hands, buttocks, and thighs.

When lunchtime came, they took a break.

In the afternoon, Chika lost her virginity as a cock was thrust into her pussy. After that, she was simply used by the men and raped repeatedly until evening.

"Heh heh, that felt good."

"Ahhh... Chika-chan’s sexy body was seriously amazing."

"I feel like I just emptied a whole week’s worth."

"That felt amazing. Chika’s sexy body."

The men spoke with satisfied expressions. They had all ejaculated multiple times, having thoroughly enjoyed Chika’s body to their hearts’ content.

"...Uh, uhhhhh..."

As Chika was forced to take a shower to wash off the semen—the evidence of the assault—she trembled and lowered her head slightly at the men’s lewd smiles.

"Okay, I’ll give you a ride home."

"Just so you know, don’t tell anyone what happened today."

"Especially my older sister Shiori."

"If you do say something... well, I think you already know what will happen without me having to say it, right?"

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

A man walked over to Chika, who was looking down, and put his arm around her shoulder as he spoke. In response, Chika simply nodded, trembling slightly.

"...My sister hasn’t come home yet..."

After being escorted home by the men, Chika entered the house and confirmed that Shiori had not yet returned. She nodded faintly and went into her room.

"..."

As soon as she entered the room, Chika gently stroked the area around her stomach. All that remained was the pain of losing her virginity.

"...Uh, uh... uuuh..."

From the throbbing pain in her vagina, did Chika realize once again, that day, that not only her sister but she herself had been defiled by men’s desires? She collapsed, leaning against the door, and quietly bowed her head.

While Chika was collapsing in her room, Shiori was being violated again.

"Mmm, mmm...! Mmmph, mmm...! Mmm, mmm, mmm!"

"Heh heh... Come on, come on...!"

"Hold it tight...!"

"Hey, hurry up and put it in—next!"

Inside a black van, stripped of her clothes and left completely naked, Shiori was on all fours, penetrated from both the front and the back by penises, groaning in agony. Different men from those who had raped Chika thrust into Shiori and violated her according to their desires.

"Mmmmm! Mmm, mm, mm! Mmmph, mmmmmmmm...!"

This situation had started a few tens of minutes earlier. Shiori had just finished her university classes, done some shopping, and was about to head home when a black van suddenly appeared in front of her. As Shiori’s face hardened at the sight, men emerged from inside. They showed her photos of herself being raped, along with a photograph of Chika that appeared to have been secretly taken on her way home from school. Unable to resist the men’s coercion, Shiori was led into the van. Then, she began to be violated again. They touched her all over her body, forced her to service them with their penises, and so arrived at the present.

"Alright, alright! Here it comes!"

"Heh heh... I’m coming too! Make sure you catch it!"

"Mmm, mmm...! Mmmph, mmmph!"

After being violently thrust into by a penis, Shiori had semen ejaculated inside her vagina, and immediately afterward, semen was also poured into her mouth.

"Phew... Ah, I came... That felt good, Shiori-chan."

"Mmm, mmm... Mmm, mmm... Mmm, mmm..."

"Heh heh... I’m not pulling out until you’ve drunk it all. Make sure you really savor my semen, Shiori-chan."

The man who had ejaculated inside her vagina immediately pulled out his penis. The man who had ejaculated in Shiori’s mouth then grabbed her head to prevent her from escaping and forced her to swallow his semen.

"Mmm, mmmmm... mmm, mmm, mmm, mmm..."

"Heh heh... Good girl, Shiori-chan."

Unable to resist the coercion, Shiori swallowed the sticky semen little by little, gulping it down. The man looked down at her sucking his penis and drinking his semen, nodded with satisfaction, and after confirming she had finished drinking, pulled his penis out again.

"Seriously... you kept me waiting. Now it’s my turn to make you feel good. Shiori-chan... here we go!"

"I’m going to take my time and really enjoy Shiori’s beautiful, sexy body. Hehehe... Come on, suck it."

"Ah, ah... ah, ah...! H, ahh... ah, mm, mmm... mmm, mmm...!"

Shiori was thus freed from one penis, but she was immediately held down by the men waiting in line again, had a penis inserted into her vagina once more, and was forced to suck another.

"Heh heh... Now, let me make you feel good, Shiori-chan. Make sure you clench your pussy tight...!"

"You’d better lick me thoroughly too. I really want to feel Shiori’s tongue."

"Mmmmm...! Mmm, mmm... mmm, mmm, mmm!"

As the men raised their voices, driven by their surging desires, Shiori was simply at their mercy, used and abused, violated repeatedly. About an hour later, the men were satisfied, and Shiori’s rape came to an end.

"Hmm, ha... ha, aaah..."

"Hehehe... That felt good, Shiori-chan."

"It feels incredibly good to be served by the super beautiful Shiori-chan."

"I’ll leave it at that for today."

"Okay, I’ll take you home so you can get cleaned up."

The men looked down at Shiori, who lay on the floor covered in semen, grinning. Unable to hide from their gazes, she simply continued to lie there. Afterward, Shiori was given a shower to wash all the semen from her body. Then she got back into the black van and was dropped off in front of her house.

"See you later, Shiori-chan."

"I’ll come pick you up when you want to do it again. I’ll be counting on you then."

"Don’t even think about running away."

"It felt great today, Shiori. See ya."

After saying that, the black van carrying the men drove off somewhere.

"...Let’s go home... Chika’s waiting..."

After watching the black van until it was out of sight, Shiori entered the house, though she was a little unsteady on her feet.

From that day forward, Shiori, and Chika as well, began a period of being brutally raped by men. Blackmailed and violated through each other, those days were filled with humiliation and shame. The two of them often hid and cried.

But violated almost every day, their bodies gradually became accustomed to the men’s penises, and they began to accept being violated as a source of pleasure. And then one day, the decisive moment finally arrived.