3. The virgin older brother that lusts for his haughty junior high school step-sister who secretly masturbates to erotic books

The virgin older brother that lusts for his haughty junior high school step-sister who secretly masturbates to erotic books

I’m a second year high school student. My step-sister Mitsuki is two years younger than me and in her third and final year of junior high school. Mitsuki has long sleek black hair, fair-skin, and she is quite proud and haughty. At the time the events of this story take place, she had that ephemeral fairy-like quality that is typical to girls of that age. She was sickeningly cute until she opened her mouth and showed how rude and conceited she was. When our parents first married we were younger and had a good relationship, but after she entered junior high school she began to ignore me and even worse, insult me by whispering rude things outside of the earshot of our parents.

“I’m so glad we don’t go to the same school anymore so I don’t have to be seen walking near such a perverted loser,” she’d hiss. “I bet the only reason you stay late at school is so you can have the last bath, go through my dirty laundry in the bathroom and jerk off to my panties, you filthy freak.” “I’m so glad my friends prefer to hang out at their places so I don’t have to worry about your sick molester vibes scaring them off.”

I just ignored her.

Although I did regularly masturbate with her worn panties before shamefully burying them back in the bottom of the washing machine.

Because my father is the eldest of his siblings, he stayed living with his parents after he married. After his parents passed away, the house became his. My grandfather had been a tradesman who made wooden door frames and sash windows, and his old workshop was a separate building we called the ‘cottage house. When my grandmother passed away a few years after my grandfather, my father sold off the workshop machinery and the cottage house became a storage place for unused items and things that cluttered up the main house.

On this particular day, school had ended, and it just so happened to be a day when neither I nor Mitsuki had any after-school club activities. Because my high school was further away from home, I arrived after Mitsuki had already returned from junior high school. As I came through the garden gate, I saw her creeping into the cottage house. Mitsuki was wearing a short sleeve blouse and a short skirt that fell above her knees; not the kind of clothing you would wear if you were going to do some cleaning. She would never volunteer to do something like that, and I was pretty sure our parents wouldn’t expect her to do it either. I wondered what she was up to - was she meeting someone in secret? I dropped my bag in the entryway of the main house and snuck over to the cottage house to find out what she was up to.

I peeked around the door, being careful not to make any noise. In the cottage house there were a few large items of furniture pushed back against the walls, some garden tools, and many boxes of old books. I saw Mitsuki over near the book boxes, shuffling through the cartons. As she bent over and rummaged through the boxes, the back of her skirt rode up. I could see the slight curve centered in the gap between her thighs, her panties pulled tight against her plump looking pussy. Her panties were white with some light pink pattern on them. She found the box she was looking for and hauled it to the top of an old desk with a satisfied grunt.

As soon as I saw the box, I knew what she had been looking for. It was a box of erotic books and magazines our father had collected when he was young. I had found them myself when I was sent to reorganize the cottage house a few years earlier. Compared to internet pornography they were pretty tame, and all the pussies were airbrushed out. Nothing like the uncensored stuff you could get online but to junior high schoolers they were like winning the pornography lottery. Mitsuki rifled through the box and pulled a few books and magazines out and started leafing through them. I stayed silent and continued to watch her.

After a few minutes, she began to breathe a little harder. She was getting turned on! I shifted in my vantage point and could see her a little clearer. The front of her skirt was bunched up and she was rocking softly against the desk, rubbing her panty-clad pussy against the rounded wooden corner. My haughty but secretly perverted little step-sister was masturbating to our dad’s old dirty books. My mouth felt dry and my dick was hard in my pants. She was moving a little faster now, and I could see her hands, her knuckles tightening as she gripped the edge of the desk. I could hear her breathing faster, and occasionally her breath caught in her throat. She was clearly building towards her climax

“Mitsuki, what are you doing?”

“WHA-!?”

She turned suddenly in surprise, spinning away from the desk and knocking the magazine she’d been looking at onto the floor. I approached from where I had stepped into the doorway.

“I said, ‘what are you doing?’ Although it seems pretty obvious.” She looked at me with wide eyes, but slightly glazed over. I noticed the sweat around her bangs and the pink flush on her cheeks. She was breathing rapidly, her petite breasts heaving under her blouse. I had seen enough high school girls masturbating on Twitter that I recognised the clear signs of arousal.

“What?!”

“No,” I said, moving closer to her. “That’s what I’m asking you. What were you doing? With this.” I bent down and picked up the magazine. I recognised it immediately. ‘Salacious Sibling Steamy Sex Scandal.’ I looked up at her. She was tight-lipped and her face was reddening as her frustrated arousal battled with her mortified embarrassment. I realized I was also eye-level with her crotch, and the front of her skirt was still folded up from where she had been rubbing herself against the desk. I could see her panties pushed into her cleft, the outline of her lips clearly visible against the cotton fabric soaked with her arousal. I looked back up at her face, and from the frustrated rage building in her eyes I could see she had clearly been tracking my gaze.

“Is my perfect, precious little sister secretly a pervert?” I asked slyly as I stood back up. I held up the magazine. “You’ve been calling me a filthy freak for years and it turns out you’ve been sneaking out here to masturbate to incest stories.” I stepped closer to her. To her credit, she held my gaze, determined to remain defiant to the last. “Is it possible,” I continued, stepping right up to her, “that the reason you’ve been such a haughty self-righteous bitch is that–” I put my mouth right next to her ear and whispered, “you’ve been harboring a secret perverted desire for your older brother?”