"Don't play dumb. I saw your cock getting hard earlier."
"NOONA!!!"
Her unexpected blunt response made me jump.
My face turned red from embarrassment.
Even if we were siblings, there were some things you just didn't say.
"What? It's not true?"
Still folded against the floor, she turned just her face to look at me.
"…Yeah. It's not."
"Really?"
Noona lifted her body with a deep breath.
Then, she pulled her legs together and sat up properly.
"Woojin Do you think Noona's saying this to scold you?"
This time, she looked me straight in the eye.
What was happening?
Her voice sounded almost… worried about me. Was I hearing things?
"Noona's just looking out for you. Mia's an idol. If even one weird rumor starts, it's over for her."
"...I won't let anything like that happen. You don't have to worry."
"Yeah? Woojin, have you been masturbating properly lately?"
"Mas—!?"
The words died in my throat.
They say when you're too shocked, your mind goes blank, I guess this was that.
"Before, your room always smelled like cum at night. But lately, there's no scent at all. You haven't been jerking off, have you?"
"Wha... what does... masturbating have to do with...?"
I wanted to say something, but the words wouldn't come.
My tongue felt oddly stiff, refusing to cooperate.
Words like cock and jerking off, they weren't things someone like Noona should be saying out loud.
Especially not prying into her little brother's private life. Shouldn't she pretend not to know?
Even if she was my sister, this was crossing the line.
"That kind of thing… You don't need to ask me about it. Why do you even care?"
I let a bit of anger into my voice.
But Noona wasn't fazed.
"Of course I care. Whether my beastly little brother is properly relieving his sexual urges."
"...."
"If you keep bottling it up, who knows? You might jump our cute little sister. We can't have a sex offender in our family."
"...Noona. You don't have to worry. I wouldn't do that."
"Every sex offender says that."
"Are you calling me a sex offender right now?"
"Whaaaat..., not at all? Noona trusts her little brother more than anyone in the world."
She grinned brightly at me.
A completely innocent smile, no hidden meaning behind it.
"But nobody plans to cause trouble before it happens. You never know what might go wrong."
"...?"
"So before an accident happens, your big sister is going to help you. Make sure our cute little brother doesn't do anything reckless."
"…Help me how?"
"Hmm. For example… masturbation?"
"Mas—…"
Once again, I was speechless.
Help me masturbate?
Did she even realize what she was saying?
"…Noona. Don't mess around. I'll really get mad."
"Do I look like I'm messing around right now?"
"Then what the hell is this if not a joke?"
I was starting to get genuinely angry.
Did she have any idea how much I'd been struggling inside?
Her careless words made me furious.
But my anger fizzled out in an instant when Noona did something that felt like dumping cold water over my head.
"How about this?"
Noona grabbed my hand and slapped it onto her chest.
My mouth fell open, and I couldn't even close it.
Noona had just ordered me to masturbate.
Serena Noona was a professional golfer who debuted in high school.
Even before turning pro, she drew attention for being the daughter of a celebrity and for her stunning looks.
She had our mother's beauty, a tall, slender figure, and F-cup breasts that captured men's gazes.
Honestly, it'd be weirder if someone like her didn't get attention.
That tendency only grew worse after she turned pro.
People called her a golf prodigy and hyped her up.
Every little thing she did stood out, she was basically a walking billboard.
Major companies fought to sponsor her, and advertising offers poured in endlessly.
Even as a rookie with no real achievements yet, she earned more than most seasoned pros.
But it wasn't all good.
The inflated fame brought out just as many haters.
Every broadcast or news article about her was flooded with thousands of malicious comments.
Reporters scrutinized her private life, spreading rumors about plastic surgery, past scandals, and dating gossip, anything for clicks.
Truth didn't matter. People just wanted something to tear her down with.
But Noona never let it shake her, her resolve strong.
She focused solely on her sport.
And she silenced the noise with skill.
She won multiple domestic and international tournaments, even topping the women's prize money rankings in Korea by age 22.
Eventually, the rumors died down.
I admired her for that.
As her family, I wanted to be someone she wouldn't be ashamed of.
Noona pulled my hand and pressed it against her chest.
The soft, plush sensation.
The feel of her breasts, barely concealed by a single bra, transmitted directly to me.
"Noona!"
Shocked by her sudden move, I pulled my hand back as if it was on fire.
The skin that had just been on Noona's chest burned as if scalded.
"What the hell are you doing? This isn't funny!"
"I told you I'm not joking."
I was so flustered I could barely breathe.
But Noona looked completely at ease.
"Noona, what's going on? Why are you acting like this?"
For the sake of God, I couldn't figure out why Noona was acting this strange.
"I told you. I'm doing this because I'm worried about you."
"Who the hell in the world does this kind of thing because they're worried??!"
What the hell was happening?
Noona wasn't usually this unreasonable.
She was strict with herself and with me, but she still had basic common sense.
Right now, though, she didn't feel like the Serena Noona I knew, more like some unknown entity.
Noona held up a single finger toward me.
"You will masturbate at least once a day. While thinking of me."
"...What?"
I had to ask again. I couldn't help it.
Masturbate every day while thinking of her?
Did I hear that right?
"But don't you dare set your sights on Mia. No dirty thoughts about her. Absolutely no physical contact. Even if she asks for it, it's forbidden. Do you understand?"
"Noona, wait, do you really think I'd do something to Mia?"
"You don't know how men and women work, do you? Did you ever think you'd be hearing this from me?"
"...."
Of course I hadn't.
No one would.
"Then I'm going to shower. You better have finished by the time I'm back."
"Finished…?"
I wasn't naïve enough to not know what she meant.
Noona stood up and, in one smooth motion, pulled off the bra she was wearing.