Chapter 100: Doppelganger Younger Brother (3)
Chapter 100: Doppelganger Younger Brother (3)
My answer was already a "YES," but giving in too easily is no fun. For now, I feigned panic and let out a startled cry.
"Hey, h-hey! What are you talking about?! Being kids was one thing, but why now...?"
"We're family, so what's the big deal? Are you embarrassed for your own brother to see you, Sis?"
The problem was where he’d be looking. Even with the shower curtain in the way, I could see his silhouette. Honestly, it’s a bit much to have something that size dangling around right in front of me.
"Ugh, it’s seriously sweltering out here. If I get heatstroke because of you, are you going to take responsibility?"
"Y-you crazy bastard! Just turn on the AC outside!"
"Aaaaaagh...!"
"Fine! I get it, so just wait a second!"
Contrary to my flustered voice, the corners of my mouth were twitching. It was obvious that my fake younger brother’s intentions weren't wholesome. Seeing how desperately he was trying to get in despite my protests, he clearly wanted something from me.
It would be even better if what he wanted was my body... but for now, I hurriedly grabbed a towel and wrapped it around myself to cover my breasts and crotch. Only then did I slightly pull back the shower curtain, but the fake younger brother was already stripping his clothes off.
"Hy-hyaaaah... ♡"
"What’s with the gasp? It’s not like it’s the first time you’ve seen your brother’s body."
"Huh? Oh, n-no. It’s not the first time, but..."
Gulp.
Thick saliva slid down my throat. I kept the curtain slightly open, poking only my head out as I took in the fake younger brother’s impressively solid physique.
Wait, so that body isn't the villain's own, but a perfect copy of Min-jae’s?
‘...He did say he was working out. But when did he build a body like that?’
He usually wore clothes, so I never noticed. Plus, I’d been so busy with hero work lately that I rarely saw him. And if I remember correctly, my brother used to have a scrawny, "anchovy" physique back in the day.
But it seemed he’d started working out in high school, and now as an adult, he had a thick torso, broad shoulders, and rippling limbs—he wouldn't look out of place next to any professional bodybuilder.
On the other hand, I, with this female body, was the exact opposite. A body optimized for breeding, with useless fat piled onto my breasts and hips, slender and delicate limbs, and a pelvis that looked like it could easily pop out twins.
‘The difference between a man and a woman...’
For some reason, my mouth kept watering, and I had to keep swallowing. Even though I could exert superhuman strength with my powers, my outward appearance was no different from a fragile girl’s. Maybe that’s why I’ve recently started longing for a man’s body.
‘It’s strange.’
When I first started this—this "defeat play"—I only enjoyed the situation of being defeated and humiliated. It didn't really matter who was tormenting me or what they looked like.
In fact, I’d enjoyed being taken by monsters like slimes that couldn't even speak, and I’d felt a secret thrill during Black Swan’s hypno-sleep training. Even with the Invisible Man, I’d been taken without even knowing what he looked like.
But lately, things were different. I wanted to be held tight by thick arms or have my neck squeezed; I wanted to be looked down upon by masculine eyes and stepped on by large feet. I found pleasure in being pinned under a massive frame that emphasized our difference in size.
‘No...! I can't just become a perverted slut with a masochistic fetish for men...!’
It’s not that I’m turned on by the male body itself. I just enjoy being sexually neutralized and defeated despite having great power. I tried to remind myself of that, but I could feel my tastes shifting little by little.
"Sis, aren't you staring a bit too much? It’s kind of embarrassing."
"Huh? Oh, n-no! That’s not it!"
Actually, the biggest issue wasn't the limbs or the muscles. That hard, massive pillar between a man’s legs was the priority; everything else was secondary.
That meat rod—useless for anything other than stopping a woman’s period for ten months, gifting her a child, forcing moans out of her through sheer pleasure, and making her squirt—was the core of the change I was experiencing.
‘When I had one, it was only for peeing. Why does it have so many functions now that I’m looking at it?’
I don't know when it got patched, but it was clearly a broken, overpowered weapon that could achieve a total victory over a woman. Whether it was small or large, the result of winning was the same, but a large, hard one was a weapon with much higher destructive power.
"Up we go."
The fake younger brother didn't hesitate, stepping straight into the tub. My eyes remained glued to his dangling cock as I stumbled backward, nearly falling on my ass.
Since I’d spent a lot of money on this house, the bathtub was large enough that our bodies didn't touch. I didn't know whether to call that a blessing or a curse, but it was certain that my face was flushed. I could tell by the way the fake younger brother met my eyes and smirked.
"Still don't have a boyfriend?"
"A boyfriend? Of course not...!"
When I first became a woman, I would have had a fit just hearing someone ask why I didn't have a boyfriend. How times have changed.
By the way, if it were the real Min-jae, he would have remembered how I used to react to those words and never would have said it. Seeing him ask like a normal sibling made the immersion feel a bit lacking.
‘If it were the real Min-jae...’
Wait, no, that’s not right. What did I just say? What the hell am I thinking? Since this wasn't a normal situation, it seemed my brain was starting to rot along with it.
"Why are you asking that?"
"I don't know, you just seem to have zero immunity to men. I can't believe you're like this even with your own brother."
I submerged myself up to my neck, leaving only my head above water, and sputtered my lips in denial. Zero immunity? I might not have a boyfriend, but I’d ended up with quite a few partners, and since I had plenty of experience, my immunity was actually quite high.
The problem wasn't "immunity to men," but what came after. How can you be like this even with your brother? I couldn't tell if he was saying that to intentionally make me embarrassed or if he genuinely meant it.
‘It’s because you’re acting like this with my brother’s face...!’
Whether it was a stranger or an acquaintance, I wouldn't have been this flustered if they suddenly appeared naked. Sure, I’d be surprised, but I’d get used to it quickly, realize what they wanted, and switch into "mating mode."
But appearing with my brother’s face and body made it hard to adapt. From this fake brother’s perspective, I was a stranger, so he could act however he wanted, but I’d known that face for twenty years.
"M-man immunity... I guess you could say that..."
"Hmm, alright. I’ve prepared a drastic measure for a sister like you."
I tried to brush it off with a vague excuse since I couldn't exactly tell him the truth, but it seemed I’d made a huge mistake. The fake younger brother didn't miss the opening I gave him, striking like a venomous snake.
"A drastic measure...?"
"We’ll wash each other’s bodies. How about it?"
For a moment, I froze as if struck by lightning, unable to say a word.
So, he wanted me to personally wash that solid back, those washboard abs, and those muscular limbs? And maybe even that rod between his legs that looked ready to get angry at any moment?
"Uh, well, I mean..."
How was I supposed to answer? He was moving so fast. As I stood there with my mouth agape, struggling to find words, the fake younger brother went a step further and squeezed some body wash into his hand.
"If you're too burdened to go first, I’ll do it. I’ll show you a demonstration by a skilled instructor."
"......Huh?!"
The fake younger brother was moving past speeding and straight into reckless acceleration. I felt like I was seeing stars as I desperately tried to think.
Countless thoughts floated through my head. I had to figure out this fake’s identity. To do that, I couldn't let him know I suspected him yet. If I refused here, it would look weird, right?
Maybe siblings normally do this kind of thing. I’d seen it in the incest erotica on the Female Hero Gallery Back Alley. But wait, that was fiction—I didn't know how it worked in reality.
‘No, wait, I was planning on doing a defeat play anyway.’
Even if I was flustered because my brother’s body was unexpectedly good, it was ridiculous to feel burdened by washing each other when I was the one who lured him into the bathroom in the first place.
"Come on, turn around."
"T-turn around?"
"It’d be a bit much to wash you while staring at you from the front. Are you a pervert, Sis?"
"Why am I suddenly the pervert?!"
"Sigh, if you want to make eye contact while your brother washes you, go ahead. But I’m not into incest, okay?"
"Hey, h-hey! Are you crazy?! Who says things like that to their sister?!"
Even as I yelled, I started to fidget and move. I climbed out of the water-filled tub and crouched on a bath stool so it would be easier for him to wash me, waiting for the fake younger brother to rub my back.
It felt strange to move according to his convenience without even being asked. It felt like being a well-synchronized fuck buddy who moves into the right position before the man even has to slap her ass to prompt her.
"Stay still. If you move, this is just going to take longer."
"I-I get it... Why do you sound like you're scolding me... Hiieek?!"
Hands coated in slippery body wash rubbed against my back. Large hands that covered my entire back when spread wide. Hands that were cold from the soap yet felt sticky.
I couldn't help but shiver. Perhaps finding that cute, the fake younger brother chuckled and began massaging my shoulders as well.
"Why are you so frozen? I’m just washing you."
"I-it’s cold..."
"Cold? Then I guess I should warm you up."
"How are you going to war—Kyaaaaah?!"
Instinctively, I let out a girly scream. After rubbing my back and massaging my shoulders, the fake younger brother suddenly shoved his cold hands into my armpits to "warm them up."
"W-what are you doing?! Why there... Hraaaang ♡"
"What’s with this reaction? Do you feel it in your armpits, Sis?"
"It’s not that... Hyat?!"
Beyond being embarrassed, I couldn't stay still once he started tickling me. I writhed around while sitting, and eventually, unable to bear the tickling, I jumped to my feet.
"Why are you shaking your body so much?"
"Ahahat! Ahahaha! I-I told you to take your hands out! While I’m still being nice..."
"I thought you said you had no immunity to men, but I guess I was wrong. Shaking your ass so defenselessly like this."
Oh. In the middle of squirming, I must have ended up shaking my butt as well. Of course, I had no intention of seducing him, but it was clear that logic wouldn't work on the fake brother villain who had come here specifically for my body.
"There."
"Ha, hah-eut...!"
As soon as I stopped moving at his remark, he firmly grabbed my stationary buttocks. He didn't just hold them; he kneaded them like sticky rice cakes, reshaping them within his palms.
"H-heut, h-heuk... Is this... part of washing...?"
Even as my ass was being violated, all I could do was let out lewd sounds and ask if this was right. Thinking that the man standing behind me was my real brother, Min-jae, made me feel even more helpless. Even if I couldn't see his face, his voice was identical, making it feel all the more real.
Meanwhile, the fake younger brother didn't stop there. When I froze up like a herbivore caught by a predator, he began to move even more aggressively.
His hands rested on my hips, slid up my waistline, and stroked my stomach. Going even further, he pulled me into a back hug and began kneading my breasts.
‘Hasn't the line between siblings already been crossed?’
But I didn't say a word. I didn't know if I couldn't speak or if I simply chose not to.
However, I knew one thing for sure. The hot, hard thing pressing against my buttocks was the member of the fake younger brother who was currently clinging to me and kneading my breasts under the guise of washing me with soap.
"Hey, Min-jae..."
"Yeah, Sis?"
"I think... something is touching my butt..."
"Ah, don't worry about it. It’s nothing."
How could I not worry? If that thing shifted its position just a little and entered me, I’d turn into a total bird-brained female.
‘It’s a miracle the pussy juice is hidden because I’m already wet... ♡’
Only after his hands left my breasts and the fake younger brother took a step back was I finally able to take a deep breath. However, looking closely, it seemed the destination of the "sibling shower" he had planned wasn't just breast-kneading.
"Hey, Sis?"
"......Yeah?"
"We have to wash down there, too."
So far, I’d only washed my upper body. Or my buttocks, at best. Naturally, I hadn't washed my thighs, calves, or the most important area—my crotch.
Even though I was keeping my legs pressed together, the fake younger brother’s hand pried into the gap created by my hips. He rubbed my thighs, which were coated not just in shower water and foam, but also in the juices leaking from my pussy.
After withdrawing his hand for a moment, the fake younger brother brought it to his nose and took a deep breath.
"......There’s a strange smell, Sis."
At the sound of the fake younger brother’s voice whispering in my ear, I finally went into full heat. Even if it was a charade, a pair of man and woman sharing the same blood were now lusting after each other in the same space.
*
"......Min-jae, what are you doing?"
"Oh, I just got a text from my sister. Wonder what’s up with her."
"Ah, your sister? The one who’s insanely pretty? If it’s cool, could you introduce me—"
"Fuck off, you psycho. Why the hell would I introduce my sister to you?"
Meanwhile, the real Do Min-jae, Floss’s actual younger brother, was on an overseas trip with his friends.
He tilted his head in confusion after receiving a message from his sister while they were out sightseeing.
‘I thought she moved out because she was self-conscious about living with me now that she’s a girl, but I guess that wasn't it?’
If that was the case, it seemed there would be no problem visiting her sometime. Although there were still about two days left in his trip, Do Min-jae decided on his destination the moment he returned home.
‘I should give her a surprise. I’ll just show up unannounced for a housewarming.’
Between the fake brother’s sudden raid and the real brother’s planned surprise visit—of course, Magical Girl Floss, or rather... "Big Sister Do Min-jeong," knew nothing yet.