Chapter 1: 1

To keep my sister alive, I had to feed her with my semen.

Today was Sunday. This morning, my sister vomited the brunch I’d made and said that it tasted disgusting. She couldn’t appreciate snacks and chocolate, and also found my dinner gross. Even water was a no-no for her too. She was abnormally hungry throughout the day, denying the fact that she was cursed with this spell.

We were in a three-story condominium set in Sapporo, Hokkaido. Third floor. Room 302. You could see the whole city up there through the glass window. Our interior was more modern than fancy (with a touch of Japanese style), so we had a bedroom that had a wooden sliding door adjacent to the hall. It was inserted between the kitchen and the living room. We usually found it unnecessary to slide the wooden door close since we didn’t care about privacy, but now it was different.

8:57 p.m.

Our bedroom had dimmable orange lights. It was strange masturbating half-naked to some porn under a cozy atmosphere. I was trying to spritz my jizz into my palm so that I could feed my sister. And when I was done, I called out to her. “You can open the door now.”

She opened the door and sat beside me. The semen was still warm in my hands and she started licking it. Her tongue tickled my palms. I could hear slurping noises. When she finished, she looked at me with slimy leftovers around her mouth glistened by the orange lights.

I wiped my hands with my shorts.

“…Why does this taste delicious? I… I need more…”

“W-Wait, Mana. Are you being serious right now?”

I thought that the curse was a prank, so I played along with it and tested if she could still continue after seeing my semen. It started when a stranger came into our room and she had this lusty, demonic aura that I couldn’t put my finger on. At first, we didn’t believe her. Then my sister began finding my meals atrocious. It was only when she ate my seed that I started believing the story.

“I’m…feeling starved, Mano.”

“…We’re siblings.”

“…I know.”

Even if the others found her pretty, I couldn’t find her sexually attractive simply because she was my blood-related sibling. That was why I had to watch porn to stifle my erection. And I couldn’t concentrate well when my sister was on the other side of the wooden sliding door.

“I can’t believe it either,” she said. “I’m…really cursed. Is there a remedy for this?”

“You’re talking about a supernatural curse, so it can’t be cured by any remedies.”

Her stomach growled.

She flinched.

“I don’t know why this is happening to me.”

“…For now, we have to keep you alive. The witch said that if you don’t eat semen for a day, you’ll die.”

“…Can I have one more then?”

I stared at her.

I couldn’t believe I was experiencing this right now.

“…I’ll masturbate again. Just turn around—”

“No. I’ll suck it.”

“What? No.”

“It doesn’t feel satisfying to me if I just lick it. I just feel hungrier.”

“Still—no.”

“Come on, Mano. It’s just me.”

“Yes, that fact makes it worse. You, my sister, can’t just do that to me.”

She looked sad. “Then how am I going to live?”

It was fortunate that Mom lived and worked abroad, so we were always alone together in this condo. But that didn’t make it any better.

“…Why not just get a boyfriend?”

“I don’t feel comfortable doing this to others. I don’t want to disclose my curse too.”

She started stripping and showed her modest breasts. “I’ll…try to make you hard, Mano.”

“Wait, what are you doing? Stop that.”

I had a girlfriend.

This was a dilemma.

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I hadn’t even done anything sexual with her.

And I was already doing it with my sister.

“You don’t have to watch porn. You just have to look at me. This is more efficient.”

“Easier said than done!”

“Do you want me to die then?”

“No.”

“Then please—let me have your seed.”

She rubbed and teased my thigh, and I could feel the blood flowing into my manhood. When I got hard, she kneeled down before me and started stroking my dick. “Mana, wait—I can’t do this. This just feels so wrong.”

“I have no choice.”

She put the entire thing into her mouth and stayed like that for a few seconds. Then she started sucking it. It felt rough and wasn’t enjoyable—I winced whenever she hit the tip. This was an amateurish blowjob through and through. I closed my eyes, trying to imagine my girlfriend doing it. Having my sister do it for me was depressing and disturbing. In this cozy silence, I could only hear slurping and moaning.

She released my dick and slightly panted, seemingly tired of sucking it. “This is hurting my jaw…”

“You know, just let me masturbate—”

“I’ll continue.” She sucked me again and slobbered on it. She seemed to be having a hard time as she intermittently closed her eyes whenever she deepthroated. Wait, why was I watching my sister giving me head? Back and forth, back and forth, she was trying her best to suction my semen.

When I was about to come, I felt this strange impulse of grabbing her hair and burying my dick into her mouth. To avoid that impulse, I put my hands on the sheets and let her do the work.

I exploded into her mouth, groaning.

She slowly released me.

And made a show of swallowing it.

“…Are you satisfied now?”

“No, but I’m not hungry anymore. Thank you.”

“Good… Because I can’t come any more than that.”

As she wore her clothes, I went to the bathroom to wipe my dick with a tissue, then threw it into the bin. I wore my shorts and walked back to the bedroom.

Mana Kazuhiro.

Seventeen years old.

Black-haired, average-length hair.

She wasn’t that curvaceous but wasn’t that skinny either. She looked like she didn’t like going outside, so she was pale. I always went outside since living in an air-conditioned condo could be saddening at times.

She was now lying on the bed facing me. I lay beside her and sighed. “Does that mean we have to do this every day?”

“I guess so.”

“I’ll try to find that witch.”

She hugged my arm. “Please do. I won’t be able to live a normal life if I keep being like this… Should I even go to school tomorrow?”

“You don’t have to—for now. I’ll tell the teacher that you’re sick. Take care of yourself first.”

She tightened her grip, squeezing my arm. “I’m scared, Mano. Please…help me.”

“Don’t worry. We’ll figure this out.”

I comforted her, rubbing her hair. I knew that we wouldn’t be able to fall asleep immediately. Still, I was tired after feeding her twice. I found myself staring at the dim orange light covered by a ledge to suffuse the light gently. The air conditioner was too cold and I wanted to turn up the temperature, but since my sister was cradling my arm, I decided not to.

I couldn’t tell what I was feeling that night and would never be able to put it into words. But there was one thing I was certain about—and that was to keep my sister alive. I just had to endure the incestual aspect of it and everything would be easier. There was no room for me to feel disgusted when she was in danger.

It seemed that I had to quit jerking off from now on.

“…”

Her stomach growled.

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