Sister's Secret Files
Numerous files fill the screen in a chaotic jumble.
"Ah..."
I skimmed through them briefly, but it was clear they had nothing to do with her thesis. Titles in English, Japanese, Korean—languages from all over. A few words jumped out at me immediately. Futanari, big sister and little brother, sex, dickgirl, real siblings, incest, bochu...
"Hoo..."
I swallowed hard and moved the mouse to open one file.
[Loving Little Brother with a Massive Cock: Big Sis]
A bunch of image files popped up again. Click.
"Ah, ugh..."
It was a manga of a futanari big sister mercilessly pounding her hideous cock into her cute little brother's ass. The sister whispering "I love you" to her brother as she forced what looked like an impossibly huge dick into his tiny hole. Seemingly familiar with the situation, the brother took deep breaths, accepted the cock into his asshole, and begged his sister for a kiss. Squish-squish, squish-squish! Slurp, sluuuurp. Sluuuurp, sluuuuurp!
Stimulating sound effects surrounded the two reveling in anal sex. Hearts formed in the brother's eyes as his ass was torn apart, his toes curling pathetically.
[Hngh, hnguu. Cum in me. Fill me up inside, Sis! Hngh, huaaang♥]
Spluuurt! Spluuuurt! They climaxed together, bodies shuddering as they tangled their tongues. The futanari sister's semen flooded the brother's anus, while the bochu brother's cum splattered across her body.
[Hehe, me too♥]
Squish-squish, squish-squish!
[Agh, aaah. Haa, so good. Love it when you pound deep into my ass♥]
It was a raw depiction of incestuous sibling sex—sneaking around behind their parents' backs, fucking like beasts whenever they got the chance. Click. I closed the file and opened a video with a Japanese title this time.
Right from the start, a busty woman roughly thrust into the anus of a pretty, petite man. On closer inspection, it wasn't a real dick—it looked like a strap-on dildo attached to her waist. Squish-squish! Squish-squish! Smack! SMAAACK!
"Hngh, hngoooh! Hngh, yamete!"
The woman spanked his ass while slamming the dildo in deep, making the man wail and cry out. I didn't know much Japanese, but I recognized "yamete" from porn—it means "stop." Yet, unlike his pleading words, every twitch of his body seemed to beg for even rougher pistoning.
Each time the woman thrust her waist-mounted dildo in and out, the lewd slap of flesh on flesh made his erect little dick bounce and spin comically. After trying various positions, they shifted to a mating press, folding the man's body in half. As the dildo's speed in his anus increased, his hips lifted higher. Overwhelmed by the intense bowel reflex pleasure and the subtle prostate stimulation, his body trembled nonstop, racing toward a powerful climax.
"Hngh, haaaang! Yamete, yamete! Ikku, ikkuuu!"
Splurt, splurt. His tiny dick throbbed, shooting thin semen onto his own face. Even as he climaxed and dirtied his face with his own cum, he found no release. The thick black dildo plunging in and out of his ass showed no mercy, tormenting him relentlessly. High-pitched, whimpering sobs burst from his mouth. I had no idea what he was saying, but the woman smirked wickedly and pulled the dildo from his anus.
"Hngh, hngaaah... hngh, hngh, hooooh♥"
With his legs spread wide, the man's gaping asshole twitched and gaped, refusing to close. Then the woman reappeared, carrying an arsenal of toys: a meter-long orange dildo, rotor, plug, chastity cage, vibrator, and more. She uttered a few curt words in a sinister tone, unleashing hell—or heaven—upon the man.
...Click. Click, click. Click!
An insane amount of porn videos, manga, and erotic stories. From a quick scan, most depicted slutty, sticky sex between what looked like big sisters and little brothers.
As I kept scrolling, one special file caught my eye.
[Dirty Secrets and Desires I Can't Tell My Beloved Eunwoo]
Click...
Inside were writings that seemed to be penned by Noona herself.
Haa, I wanna fuck Eunwoo. Wanna kiss him, deep sloppy kisses! Grab his cute little face and tongue-fuck him. Feed him my spit, steal his. Shove it in his mouth, savor it forever, swallow it down.
Wanna train his ass too. Shove my finger in his cute little butthole and stir it around. Press hard on his bochu's weak spot, the prostate, make him cry and cum. Wanna capture Eunwoo's face as he cums from anal. Keep the photo forever.
Hngh, so lewd♥ Getting off on his ass, watching his tiny dick spurt cum, I'll get my huge cock hard and jerk off right in front of him. Lube it up with my dripping precum, then shove it straight into Eunwoo's anus. Bury it to the hilt in that perfect hole, pound away, and flood him with my stinky, sticky semen!
Hngh, I love you Eunwoo♥ Love you. Love you♥ Love you! Love you♥♥
"..."
Is this for real? Has Noona really turned into a futanari like the Status Window said, becoming a sex-crazed monster? Smiling prettily at me just like always, without a hint, while harboring thoughts like these inside?
But the file wasn't just text—there were videos too. It felt like something I absolutely shouldn't open, but I was entranced, hitting play anyway.
"Aaah?!"
It was Noona, naked. Completely bare, her stunning body on full display. Her pale white skin, the huge breasts and slim waist hidden under her clothes, her firm yet soft-looking ass. I had to close it now. This was worlds apart from secretly reading her fantasies about using me as a fucktoy. I needed to shut down the computer and get out of her room—but I couldn't...
Instead, my eyes flew wide, I swallowed hard, and I devoured every inch of her body. The sexy collarbone I sometimes glimpsed in summer heat, flowing into elegant shoulders. Breasts too massive to hide under clothes, topped with perky pink nipples. Her adorable navel, toned abs and thighs from exercise, her ass—plenty to ogle, but none held my gaze like that.
I forgot to blink, forgot to breathe. What transfixed me utterly was Noona's cock. Dark red against her white skin, monstrously thick—words failed.
"Haa haa, that's Noona's dick? That big?!"
Its length, girth, bulging veins rivaled even the black porn stars I'd seen in videos.
"Haa haa, love it. Love dick. Love jerking dick♥"
Stunned by the size, I zoned out as video-Noona grabbed her massive cock and shook it.
Squelch, squiiiish. Squiiiish-squish.
"Hngh, Eunwoo, watch Noona. Watch your pathetic big sis shaking this hideous futanari dick! Watch Noona's shameful face as she gets off on her cock. Haa, so good. Cock feels so good♥ Jerk it for me. Grip it tight with both your hands and stroke me off!"
One hand on her dick, the other kneading her breast and twisting her nipple as she masturbated. She screamed without care for who might hear, and the bed looked different from ours, so probably not filmed at home. Squish-squish! Squish-squish!
"Heek, heek. Hngh, hngoooh♥ Gaa, Noona's cumming! Semen out! Take it all. Catch it all on your cute face and swallow it down! Haa gaaa!"
Spluuuurt! Spluuuurt! The dark red monstrous cock throbbed, unleashing a torrent of semen. Noona's hands never stopped milking it. Futanari stamina? Unreal ejaculation duration and volume, just like in hentai and stories.
The sticky globs splattered across her body after what felt like forever. Squelch, squiiiish...
"Haa, heeeek... I love you, Eunwoo. Wanna fuck you. Wanna hug you tight, shove my dick in your ass. Dump my cum deep inside and impregnate you. Hngh, love it. Love you, Eunwoo♥"
Post-orgasm, Noona gently shook her still-hard cock, squeezing out the last drops from her urethra, hips quivering in afterglow. She rubbed the semen all over her body like lotion, massaging it in.
"Ugh... N-Noona's doing this..."
There were about ten more videos like it. All starring me as her jerk-off fantasy, her cock erupting once, twice, or in one case, five times in a row.
"It's real. Noona really became a sex monster..."
I didn't want to believe it, but now I had no choice.
"What do I do now?"
Your family is in danger.
[Do you accept the quest?]
I muttered to myself, but it was like the Status Window heard me—it popped up the quest again on its own. My eyes locked on those words: Your family is in danger.
"...I accept."