Mom's Panties Are the Best Material
"Seohee keeps things neat."
Seohee's room looked thoroughly ordinary, yet for a girl her age it was strikingly sparse and simple. I gave the vacuum a light pass, finished a quick clean, and was about to step out when I noticed her computer still running and drifted closer out of curiosity.
"Hmm. No games, nothing special in the browser history... Wait."
Digging too deep felt impolite, so I meant only to check whether she had been chatting with any strange people and then leave it alone. One file, however, snagged my eye.
Opening the folder labeled 1-1 revealed what looked like more than a hundred files.
"What the hell is this..."
Titles like Aspiring Sex Slave, Masochistic Stepmom, and Cop Broken In After Rape jumped out at me. Every single one was erotic fiction.
"So this is her taste..."
I knew better than to pry too deeply into my little sister's sexual preferences, but this went far beyond ordinary. I honestly hesitated. Still, I had no confidence I could sit face-to-face with Seohee and discuss something like this, so I decided inwardly to respect her tastes, pretend I had never seen a thing, and hurried out of her room.
"Haa~ Yeah. I saw nothing. All right—that leaves only Mother's room."
Stepping into the last remaining room—Mother's—I was hit by a thick, concentrated scent that felt unmistakably like the body odor of a mature woman, nothing like my sisters'. My cock began to harden on its own.
"Mmm..."
True to her personality, Mother's room was so immaculately organized it barely needed cleaning. At most I would only have to put away the panties and bra lying on the bed.
"As expected of the president of an underwear company."
Unlike the other women's rooms, Mother's had every sort of lingerie neatly arranged along one wall as if on display. Each piece was highly provocative, true to her company's motto of making women even more womanly.
"Don't tell me she actually wears these?"
Staring at the displayed lingerie, I found myself picturing Mother wearing every piece. The cock that had already begun to rise swelled as if it would tear straight through my pants.
"Calm down. No matter what, I can't do this over Mother."
Suppressing the urge to touch them, I headed for the bed intending only to tidy the underwear and leave so I could go to my own room and jack off to porn. The moment I saw what lay there, I froze solid.
A tiny red pair of panties rested on the sheets. The crotch—the place that would press against a woman's most private flesh—was dark with a vertical streak of moisture.
I swallowed hard.
"Th-this can't be..."
It was nearly impossible to imagine that Mother—always so proud and confident, the idol of countless women and the focus of every man's gaze—would ever masturbate. Yet with such clear evidence right in front of me, the image of her lying on that bed, lewdly comforting herself, flooded my mind.
With trembling hands I picked up Mother's panties and brought them to my nose. Still inexperienced, I couldn't be certain, but instinct told me this was the scent of a woman's love juices. My cock swelled to its absolute limit; the urge to pull it out and stroke myself right then and there crashed over me.
My hand found the bra as well. The faintest warmth still lingered in the fabric.
"The juices haven't dried, and there's still heat in the bra..."
Looking at the situation, I reached one conclusion.
Mother had masturbated that very morning.
Standing in the place where she had pleasured herself only a few hours earlier shattered whatever reason I had left. I yanked my pants and underwear down, wrapped my cock in Mother's panties, and started stroking hard.
Slap! Slap! Slap! Slap! Slap! Slap!
"Ugh! Mother... Mom!"
Eyes closed, I saw her on the bed: always-prim Mother with her clothes undone, fingers working her secret place, hands toying with her own breasts. The vision was more filthy and electric than any porn I had ever watched. Climax rushed up almost at once.
"Not here—! No choice..."
Feeling the orgasm about to break, I grabbed the bra as well and came into the panties, soiling both pieces thoroughly with my semen.
"Damn it. Gotta wash these fast."
The moment I finished, post-nut clarity hit. I grasped the situation, snatched up the stained underwear, and hurried toward the washing machine.
"Huh? Wh-why isn't this working?!"
I tried to start a load in a panic, but the machine refused to run. I checked it every which way; I was no expert and had no idea what was wrong.
"Should I hand-wash them? No—hand-washing right now would look way too suspicious."
I had never hand-washed a single thing in my life. Suddenly doing so would obviously raise questions. So I simply carried the semen-stained underwear back to my room, hid them in a corner of the closet, and spent the remaining hours inventing excuses for later.
Time passed. Mother, who always returned earlier than my sisters, came home at five. I acted as normally as I could, pretending nothing had happened, then retreated to my room, sat on the bed, and prayed inwardly that she wouldn't notice.
Knock knock.
"Heetae, can I see you a moment?"
"Y-yes!"
She knocked but entered without waiting for my answer, stepping inside as if she already knew everything. Her eyes swept the room, then she walked straight to the closet.
"M-Mother, wai—...!"
I lunged to stop her, but she was a step faster. She opened the closet, pulled out the panties stiffened with my dried semen, and held them out toward me.
"Shall we have a little talk with Mom for the first time in a while?"
One day earlier
"Haa~ That should be enough of a plan. Heh heh."
After finishing her day's work, Jihee allowed a natural smile to bloom. A plan she had spent an entire month refining was finally complete, and tomorrow she would put it into motion.
"Even when Mom drops this many hints, Heetae still doesn't catch on... Well, it can't be helped."
For a long time now she had looked at the boy she had taken in as a son and seen a man—and she loved him. At first the feeling had left her confused, yet the longer she spent with Heetae the stronger it grew, until by the time he entered high school her heart was fully decided.
They shared no blood, yet the parent-and-child relationship made any shift into man-and-woman nearly impossible. So she had built a multi-year plan.
She would stimulate a man's instincts. Subjectively and objectively she knew her body and face were extremely attractive; the strategy seemed viable. At the very least, whenever she was in front of Heetae she always wore outfits that showed off her figure and deep cleavage. She would give her hips a subtle sway or make her breasts bounce just enough to tease, steadily stoking his desire until he wanted her sexually.
The plan had worked. After years of effort, the way his gaze raked over her body whenever they faced each other had become routine. Sometimes he couldn't even hide the bulge in his pants, and she had taken quiet satisfaction in it. One problem remained, however.
No matter how sexually aroused he became or how attractive he found her, they were still parent and child. The number of people in the world who could cross that line was vanishingly small, and Heetae belonged to the majority who would not. The result was that even when his eyes briefly turned into those of a beast eyeing prey, they snapped back to a son's eyes just as quickly, leaving Jihee the one aching with frustration.
Of course she could make the first move herself, but ethics—and the presence of her other children—made that impossible. If Heetae ever rejected her, every chance would vanish forever, so she had no choice but to proceed with extreme caution.
What finally emerged from all that restraint was the current plan.
1. Masturbate in the morning so that underwear thick with her scent would be left on the bed, then sabotage the washing machine.
2. Have him clean the house in her place so he would naturally enter her room.
3. Ensure Heetae took the underwear.
4. Use that as the opening to draw even closer and finally cross the last line.
The next day
It was a simple plan, yet full of variables, so she chose a day when her daughters would return late and she herself could come home as early as possible. Unconsciously determined to excite Heetae, she had sprayed a hard-to-obtain perfume containing a mild aphrodisiac component in several places around her room. Then she masturbated thoroughly so her panties would be soaked with a dense concentration of love juices.
Getting herself wet enough first thing in the morning had been the hardest part, yet the thought that she might finally be able to be with her beloved son Heetae drove her into extreme arousal. She left far more, and far thicker, juices on the fabric than usual.
"It's a little embarrassing, but if this gets Heetae going... heh heh heh."
Leaving her thoroughly soaked panties so neatly on display was mortifying, yet imagining an aroused Heetae using them to masturbate made fresh heat rise in her. When she faced him that morning her voice had gone a little high without her noticing. She worked through the day at the company, but her mind stayed completely full of Heetae until she finished and headed home.