Side Story 2: Defeat Ejaculation with Big Sister's Help
The evening after that spine-tingling secret tryst with his big sister...
"..."
Jo Eunwoo sat blankly at his desk, turning over everything that had happened the night before.
Sis...
I never thought Yeonwoo would look at me like that...
They'd already had sex. It was almost funny to be thinking this now. But his head had been such a wreck from all the pleasure and stress that he hadn't been able to sort anything out. With Master and their parents out of the house, he finally had room to think.
He swallowed.
Just... since when...?
Only now did he ask the fundamental question.
Unlike Cho Yeona, Yeonwoo always treated me well... but I never really did anything for her...
No matter how many questions he threw at himself, the mystery wouldn't unravel. He set the unanswered doubts aside, and a more primal worry surfaced in their place.
W-what do I do... sis is gorgeous, her body's amazing, but... we're... family...?
It was a worry that didn't suit Jo Eunwoo in the slightest. He'd looked at his own mother as a woman. He'd ogled his sister's body with lewd eyes on a regular basis. It was almost laughable that he'd start moralizing now. And as Master's sex slave, already fallen into sissification, quibbling over ethics was meaningless anyway.
Ugh... I like her too, but... that's... as family... I mean...
He thought of his sister, who'd left a kiss on his cheek last night as she told him she loved him.
Even so, hearing "I love you" for real from family... it feels weird...
Even as he told himself that, his face flushed and he stroked his cheek.
A-at this age, a kiss is... too...
This wasn't a normal sibling relationship. Not a normal family. Ordinary blood relatives defaulted to fighting each other. But...
A faint rattle.
Jo Eunwoo and Jo Yeonwoo were not ordinary siblings.
I-I've never thought about this before...
True to his history as a hopeless virgin, the mere idea that a woman liked him—
"Uuuugh..."
—even if that woman was his own blood sister, made his whole body burn. Instinct and heart both leaned toward the girl who'd confessed to him.
H-honestly... looking at sis... I've thought she was hot before...
His body was already worked up, his heart already tilted, and inevitably they hunted for something more stimulating.
Haaang...! Haaahn...!♡
M-Mastew...♡
That pleasure wasn't reality. It was the scene on the other side of his phone screen.
Eeeeh...♡
The Jo Yeonwoo in the video Master had sent him...
His cock twitched.
A feeling different from anything before welled up.
S-something... even more than usual...
Especially after last night.
This is so fucked up, isn't it...?
It wasn't simply the feeling of having family stolen.
Haha, Yeonwoo, you're clinging like crazy today.
H... but Master's cock... it's even harder than usual today...♡
"Uuuugh..."
How to put it... it felt like having a real girlfriend stolen. Or someone he had a crush on.
Slap, slap, slap—!
Heeeugh!♡
"D-damn it..."
They'd been together since they were little. Maybe it was like having a childhood friend stolen.
"Damn it...! Sis...! Yeonwoo...!"
Jo Eunwoo had requested a mother-as-slave scenario for realistic immersion in netorare. He hadn't had a girlfriend, so he'd offered up his mother for that sense of reality—but now...
Slap, slap, slap—!
I love you, Master! I love youuu!♡
"Ahhh...! I like you! I love you too...!!!"
Now he could enjoy NTR with the sensation of having a lover stolen.
Hngiiiiiiit—!!!♡
"Yeonwoooo...!!!"
"You called?"
The voice whispered right in his ear.
He startled so hard he slammed his knee into the desk.
"Y-y-Yeonwoo?!"
"Our Eunwoo~ what were you watching that got you so spooked?"
He flinched and killed the video on reflex.
"W... when did you come in?"
"Just now. I kept calling and you didn't answer."
"R-right...?"
An awkward silence settled. She was the one who broke it.
"By the way..."
She grinned, as if she already knew everything.
"Why are you hiding your phone?"
The question was playful, her smile mischievous.
"U... uh..."
They'd already seen each other at rock bottom. At this point, admitting he'd been watching his sister's NTR video and getting a defeat-erection wasn't even that humiliating. And yet his mouth wouldn't open.
"I... it's nothing..."
He didn't want to look pathetic in front of the sister he now fully registered as a woman.
"What's the big deal between us~ you're really not gonna show me?"
"Th-that's..."
Jo Eunwoo stuttered like a man with his crush standing right in front of him. He never reacted like this to his usual eldest sister. She was blood he'd spent almost his whole life with—just Mom and Dad's daughter. That had always been true, and yet...
She pressed in. He flinched hard as her chest pushed against him.
"Haha... you've been overreacting since earlier. Like a thief with a guilty conscience... heh."
"N-no... th-that's..."
And no wonder. Ever since things had gotten this far, Jo Yeonwoo had started borrowing Cho Yeona's clothes. The girl who used to live in baggy hoodies and long sweatpants was now walking around in dolphin shorts so short her underbutt showed, and a tank top cut so low it bared her chest, shoulders, and collarbones.
He swallowed.
Blood relative or not, there was no way he wouldn't register her as a woman.
"Haa... haa..."
His breathing even grew ragged for no reason.
Jo Yeonwoo noticed the change in her little brother—and suddenly hugged him from the side.
"U-sis...! W-wait...!"
He thrashed reflexively in surprise, but he couldn't easily get away. She held on tight.
"Why? Can't sis hug her beloved little brother a little...?"
"Th-that's not it...!"
The low, soft voice ringing in his ear turned it bright red. A ticklish puff of breath teased his eardrum, whether on purpose or not.
"If that's not it... then what...? Heh...♡"
Her fingertips playfully, sneakily grazed his stomach, his chest, here and there.
S-something's...! This feels weird...!
That cringeworthy awkwardness was driving him insane.
"Does Eunwoo not like it when I do this?"
He didn't dislike it. If anything, it felt insanely good. But whether he was clinging to pride at this late hour, or some leftover scrap of common sense was kicking in...
"I-I don't like it... this kind of relationship... M-Master isn't even forcing us... we don't have to do this when it's just the two of us..."
He pushed back, playing hard to get.
"This says otherwise."
Of course his body was far too honest. Jo Yeonwoo grabbed the chastity cage along with the cock that had to be erect inside it and gave it a shake. The lock rattled.
"N-no... you can't even tell if I'm hard in this state..."
At her little brother's stubborn denial, she decided to drag his true feelings out into the open.
"Sis... actually knows everything, you know?"
"K-knows what...?"
"Yesterday... the fact that you were pretending to sleep...♡"
He flinched.
"Did you really think I wouldn't notice?"
I... I knew it, she caught me...!
"Your body was trembling. Your breathing was ragged. Your heart was pounding and you were burning up. You were basically advertising Please fuck me~♡ It was so hard holding back."
He swallowed.
"Back then... you were actually hoping for it, weren't you? Hoping sis would fuck Eunwoo."
She'd hit the bullseye.
"You couldn't bring yourself to make the first move. You wanted to get fucked like a female. And then when I left without doing anything, you thought you'd go crazy, didn't you? That piled up and piled up until..."
The cage rattled again.
"Just now... you were jerking off watching sis's video...♡"
Leave it to a writer to have quite the imagination. The problem was that every bit of that imagination was true.
Jo Eunwoo was at a loss for words.
And that little brother's chastity cage—
Click.
"H...uh...?"
She unlocked it with the key.
"Look at this..."
"You're properly hard, aren't you...♡"
His pathetic little cock came into view, erect as it could manage, showing off its presence.
"U... uuh..."
At this point Jo Eunwoo simply let himself go with the flow.
"Hehe... sis'll help you out?♡"
She plucked the phone from her little brother's hand. On the screen was a scene of Jo Yeonwoo herself and Master rolling around naked.
"This is a video of me having one-on-one sex with Master, huh? Did Eunwoo want to focus on this sis too? Hm?♡"
"I-I just... put on whatever..."
"Haha... you're so cute~♡"
She seized his cock in a big handful. He flinched. Then she hit play.
Heuk...! Heeeugh...!♡
Her own lewd moans poured out of the speaker at once. On screen, her pussy was being ravaged by Master's huge, magnificent cock.
"Ah~ that felt so good...♡"
At the same time, she live-commented the feelings her on-screen self had been having—and started stroking her little brother's cock.
"Master's cock... isn't it incredible? The man himself, subduing and conquering every female... ah, and of course it's the magnificent cock that turned even Eunwoo, a boy, into a female...♡"
"U... uuuuh...♡"
She teased her little brother in a sultry voice right in his ear.
"Places this tiny Eunwoo cock could never reach... getting thoroughly tormented everywhere..."
M-Mastew...! More...! Yeonwoo's pussy...! Pound it moreee...!♡
"Having loyalty to a strong male carved into my whole body felt so, so happy...♡"
At his sister's words, his cock throbbed so hard it felt like it would split.
Why now...?
Somehow it felt like a corner of his heart was crumbling.
Wasn't I already used to this kind of thing...?
Right then, his eyes met his sister's in the video. He flinched.
"Ah, you noticed then? I was looking only at you on purpose...♡"
On screen, Jo Yeonwoo gazed with loving eyes at him—the cameraman, or perhaps the him who would be watching this later. But Master wouldn't forgive a female who dared look away. He slammed his cock in harder, almost as if showing off, even more brutally.
I-I'm thowwy...! Only Mastew...! I'll only look at Mastew...!♡
"Haa...! Haa...!"
His sister's heart was with him... and yet her body and her pussy were being claimed by Master.
"I almost passed out then, you know? Master's always heavy, but when that muscular body comes crashing down on you at full power..."
Ahhh...! I'm so jealous...!
"In the end it hammered into my brain that I'm a woman too...♡"
Damn it...! Me too...! I wanna fuck her tooooo...!
This feeling of his brain melting...
"Haha... gonna cum? Hm? Gonna cum~♡"
His cock was melting too. The inside of his prostate started to twitch.
Damn it...! She's mine...! Originally she was my sister who only looked at me...!!!
All kinds of jealousy exploded out, but that stimulation only wrecked his brain further.
Even her hand is this soft and warm...! How good must it feel inside her pussy...!
Jo Yeonwoo grinned, thoroughly satisfied with her dazed little brother's expression.
"Watching me have sex with Master..."
Stroke, stroke.
"Your cock twitching..."
As if blowing into his ear, she whispered—
A shiver ran through him. And because of that voice, in the end—
"Ugh...!"
Splurt.
Jo Eunwoo suffered a defeat ejaculation.
"Aww~ you already came? Watching a video of sis getting stolen... while sis teases you?♡"
On screen, Master was still pistoning away. His own pathetic cock quickly tired and shriveled, dribbling out the last of it.
D-damn it... sis... sis...
The sensation of defeat wrapped his entire body. Whether she knew that feeling of her little brother's or not—
"Alright then~♡"
Click.
"H...uh...?"
Or perhaps because she knew it all too well—
"A loser deserves treatment to match, right?♡"
Jo Yeonwoo strapped on the prepared artificial cock.
A... ahhh...!
A loser, from the position of a female, was nothing more than the victor's spoils of war.