[PS: Let me know if you catch any mistakes]
***
I had gotten Noona's panties again today.
Starting now, I was going to masturbate with them.
Today's panties were sky blue.
Plain, innocent panties without any special patterns.
I guess Noona doesn't only wear sexy panties.
I took off my pants and lay down on the bed.
Pavlov's dog experiment, where ringing a bell every time it was fed eventually made the dog drool at the sound alone.
Just like Pavlov's dog, the moment I undressed and lay down on the bed, my cock hardened on its own.
Pavlov's cock.
Today, Noona had given me a special additional order:
"While you jerk off, you have to watch a video of me."
Just imagining her was torture enough, watching an actual video of her felt even more repulsive.
But I couldn't disobey Noona.
When given an order, I simply carried it out.
No other thoughts were necessary.
I opened a video site on my phone and searched for Noona's name.
From the results, I picked the top video.
It was titled "Goddess Descends Upon the Golf Course, Serena Highlights."
Careful not to read the comments, I hit play.
The video was a compilation of Noona's golf swings.
Occasionally, she crouched down or bent over to pick up a ball.
Since she was wearing shorts underneath, her panties wouldn't show even in a short skirt.
But it was obvious why the editor had included those shots.
And just as they intended, I started jerking off while watching.
Using Noona's panties as I watched a video of her.
Guilt stabbed at my chest.
When would these days ever end?
When would Noona go back to being her normal self again?
Waiting for a time that might never come, would I have to keep jerking off with Noona's panties every single day?
The more pleasure built, the more shame swelled inside me.
Just as I was nearing the edge, I heard a knock at my door.
Knock knock.
I froze. My breath almost stopped.
Who was it? Could it be Noona?
If it was her, she might have timed this on purpose to startle me.
"Woojin. Are you asleep?"
But the voice on the other side wasn't Noona's, it was Mom's.
"Uh, n-no, Mom. What's up?"
I forced calm into my voice as I answered.
I had locked the door earlier.
It wouldn't open unless I unlocked it from inside.
So as long as I stalled with conversation, I could slowly get dressed and leave without issue.
Panicking and making noise would only make her more suspicious.
With that in mind, I stayed completely still to avoid any sound.
But that was a serious miscalculation.
Click.
The sound of the door opening.
And with it, the sound of my heart stopping.
"Woojin~ about what I told you last time... Ah."
Mom, who had stepped inside, cut herself off mid-sentence.
Her gaze lingered on my cock, more accurately, "my cock wrapped in Noona's panties as I jerked off."
I had bolted upright the moment the door opened, but I couldn't hide Noona's panties still tangled around my shaft.
It's over. My life.
"…Woojin. Where did you get those panties?"
"Uh, Mom…."
Why was the door unlocked?
I swear I locked it.
To prevent even the slightest chance of something like this, I definitely locked it.
Resentment, shame, and fear crashed over me.
On my phone, Serena Noona's highlight reel was still playing.
"Are those Serena's?"
Mom's voice was unmistakably angry.
Of course she was. What parent wouldn't be furious to see their adopted son jerking off with their real daughter's underwear?
"Answer me, Woojin. What were you doing just now?"
Mom planted her hands on her hips and glared down at me.
I was terrified. That I'd made her angry. That I'd disappointed her.
Would she abandon me too now?
Maybe I should just confess everything?
If I told her Noona made me do it, that I never wanted this, would Mom believe me?
Would she forgive me?
…No. It wouldn't work.
My mind was already blank from shock. I couldn't form a single excuse.
All I could do was clumsily cover my cock with both hands, bow my head, and wait for Mom's judgment.
Looking at me like that, Mom let out a deep sigh and spoke.
"…Shouldn't you put your pants on first?"
I wanted to cry.
I resented my cock for still sticking out despite my desperate attempts to hide it.
Turning my back to Mom, I hurriedly pulled up my pants and the underwear.
I could feel her eyes on me the entire time.
What was she thinking? Was she disgusted? Did she despise me?
Was she thinking blood will tell, that like father, like son?
Was she figuring out how to kick me out?
It hurt. So much.
Was this the ending noona wanted?
All I ever wanted was to be accepted as family and live an ordinary life.
But now everything was ruined.
"Why don't you come over here and sit down?"
Mom patted the spot beside her on the bed.
I flinched but obeyed, hesitantly sitting next to her.
"You're a boy, so of course you'd do things like that. But you shouldn't take someone else's things without permission. Do you understand what I'm saying?"
"Yes…"
Should I say I did have permission? That it was noona who told me to? But I couldn't tell the truth.
If she thought I was lying just to escape the moment, there'd be no going back.
For now, I decided to play the yes-man to get through this.
"I'm sorry too. I shouldn't have come in without asking. Did I scare you?"
"No… just a little."
Mom smiled slightly, and some of the tension left my body.
Good. She didn't seem that angry.
"But…"
She picked up my phone, which had fallen on the bed.
Pressing the power button, the video I'd been watching before resumed playing.
"..."
For a moment, the only sound in the room was the noise from the video.
Neither Mom nor I spoke.
I couldn't lift my head.
Of all days, why did today have to be the day she caught me?
Jerking off into noona's panties was one thing, but watching a video of noona while doing it? That was undeniably worse.
"…Woojin, do you like noona?"
After watching for a moment, Mom asked me seriously.
If it was a matter of like or dislike, of course I liked her.
But I knew that wasn't what Mom meant.
"…I like her as family… but not as a woman…"
"Then why were you watching this? And aren't these noona's panties?"
My face burned.
Right now, my ears were probably red to the tips.
"It's... it's just… a way to relieve sexual urges. It's not that I did it because it was noona, it just happened to be…"
My words were a mess.
Since I couldn't tell the truth, everything sounded like an excuse. Because it was an excuse.
"Sexual urges, huh…"
Mom actually considered my words carefully.
Her way wasn't just scolding me or forbidding it, she thought about the root of the problem and how to solve it.
"Then… have you ever felt that way about Mia?"
…I should say no, right?
But Mom's serious gaze made it impossible to lie.
I could only nod.
"…A little."
"I see… Then… have you ever felt that way about me?"
That was a question I never expected.
It was like getting hit in the head by a rock out of nowhere.
I froze, but Mom kept staring at me, dead serious.
This wasn't a joke. So I had to answer honestly.
"..."
I couldn't bring myself to say it out loud, so I just nodded.
Strangely, Mom let out a sigh of relief.
"Good. Then it's not just about Serena."
Noona had ordered me to only think of her.
But now wasn't the time for that.
"Then… from now on, instead of using noona's panties, why don't you use mine?"
"...Huh?"
Everyone.
What the hell did I just hear?
"In my closet, the white drawer at the very back is where I keep my underwear. If you need some, take it from there. No more stealing noona's. Understood?"
"Uh-uh, yeah."
"But don't make a mess. If you're about to cum, make sure you use tissue. Semen doesn't come out easily once it stains."
I nodded blankly, completely stunned.
How did we end up at this conclusion?
"Here. A promise with Mom. No more stealing noona's things, okay?"
She held out her pinky.
I hooked mine with hers, feeling like I'd gone back to being a little kid.
…Right. To Mom, I'd always just be a child.
Maybe in her eyes, me jerking off into noona's panties was just childish mischief.
But since taking things without permission was stealing, she was telling me to use hers if I needed panties.
"Mom…"
Her acceptance made me feel like crying.
I'd been prepared to get kicked out, but instead, all my sins were forgiven.
Seeing me on the verge of tears, Mom actually apologized.
"I'm sorry, Woojin. I didn't realize I was taking up your time."
Her eyes drifted downward, to the obvious bulge in my pants.
…Even now, my cock hadn't gone soft.
The one lacking awareness wasn't Mom, it was my damn dick.
"N-no, this isn't..."
I panicked and covered my crotch, but Mom just smiled knowingly.
"You don't have to be embarrassed. It just means you're healthy. It must've been hard holding it in all this time."
Her gentle hand stroked my head.
That pure affection made my conscience burn.
"If you're okay with it… as an apology, should Mom help you out a little?"
…Huh? Help me? With what?
The casualness of her question, like she was asking what I wanted for dinner, left me even more flustered.