Big Sis, Are You a Castrato?
The fact that my big sis—who used to be treated like a scoundrel of Gehenna—has become what she is today is a tremendous change.
And the one who brought about that tremendous change is none other than me.
It goes without saying that this means I am a very special person to her.
“Lord Runius, are you all right?”
“Ah, yes.”
As I stood there for a moment, lost in thought, Penny asked after my well-being.
I nodded and continued walking, following behind Penny.
“That is why everyone was curious about you, Lord Runius.”
“Me?”
“Yes, they wanted to see for themselves the one who brought about such a change in Lord Belial.”
“Well…? Now that I’ve seen you in person…”
“To be honest… I was surprised because it was so unexpected.”
I didn’t need to ask why.
After all, he had effectively reformed a wayward demon, only for that being to turn out to be a perfectly ordinary human with nothing particularly remarkable about him.
“Excuse me, may I return to my room now?”
“Yes, of course.”
Having finished the rather uninteresting tour of the grand mansion, I returned to my bedroom.
“Sigh… What on earth is going on?”
My mind is in a right tangle.
Surely a demon cannot understand, let alone possess, human emotions.
If the feeling my sister harbours for me really is love, I have no idea how I should respond to it.
“Am I supposed to start dating her or something?”
Dating.
With my sister?
No, with a demon.
And a demon who’s absolutely obsessed with getting his hands on me.
Isn’t that practically impossible?
“It’s difficult.”
I flung myself onto the bed and stared blankly at the ceiling.
Whenever my sister tries to pounce on me, she looks exactly like a demon presiding over lust.
But apart from that.
“Runi.”
“Sis? You’re early.”
Just as I was mulling it over, my sister suddenly appeared.
She shuffled over, lay down on the bed and pulled me into a hug.
“Mmm… that’s nice.”
“Sis, are you alright?”
She looked quite different from before she left the room.
She seemed rather exhausted.
“I’m just a bit tired. It wasn’t even that long, but I feel as if all my energy has been drained.”
“Drained? What on earth did you get up to?”
“I’ll tell you later. Right now… I just want to focus on holding you like this, Runi.”
My sister held me tight and did nothing else.
Neither did she slip her hand inside my top to touch my breasts, nor did she slip her hand under my skirt to touch my pussy.
She literally just lay there, holding me.
“Runi, let’s stay like this for a little while longer, then we’ll go home.”
“Yeah, I know.”
I felt as though even the slightest movement might disturb my sister’s rest, so I continued to breathe cautiously.
Before I knew it, my sister had closed her eyes.
Just as I wondered if she was asleep and looked closely at her.
-Peck!
Our lips touched lightly and then parted.
“Why are you staring at me like that?”
“H-how did you know…?”
“I can feel your breath.”
“It’s just… you looked tired. I wondered if you were asleep, so I was watching you.”
Seeing my sister like this felt utterly unfamiliar.
After all, she was always full of life in so many ways, and it was second nature for her to smile whenever she was with me.
“Are you very tired?”
“Yeah, I am.”
Seeing her sitting there so listlessly, she seemed somehow unlike herself.
Having known her for 13 years, I’d never seen her like this before, so I wanted her to return to the sister I was used to.
“Sis.”
“What’s wrong, Runi?”
At the same time, I wanted to gauge her feelings.
Whether she truly loved me.
If she did, the situation that was about to unfold would be filled with an atmosphere quite different from usual.
I wished another way would come to mind, but as this had become almost a daily routine, there was only one thing that sprang to mind.
“My breasts… would you like to touch them?”
“Did I mishear you, sister?”
My sister, who had been answering me with her eyes gently closed, looked at me with her eyes wide open.
That gaze was filled with doubt.
“You mustn’t be tired… I’m used to seeing you full of energy. So…”
“If you’re joking, I’ll tell you off, Runi.”
“I’m not… joking. I’m serious. If you think I’m joking, then go on and think that…!”
Feeling terribly embarrassed, I turned my back to lie down, but my sister’s hands quickly reached out and began to touch my chest through my clothes.
Had she ever touched my chest like this before?
No matter how I thought about it, she’d always just roughly stripped me naked and touched me directly.
“Runi’s breasts are soft.”
“You’re touching them… so gently.”
“Can I touch them some more?”
“Ugh, yeah. Go on.”
She undid the straps of my dress and gently pulled it down.
As her breasts were exposed, my sister’s hands touched them directly.
“Come to think of it, I don’t think I’ve touched Runi’s breasts very often.”
“You’ve just been banging away at me every time, you naughty sister.”
“But that just shows how much Runi fancies it.”
Every now and then, my sister’s thumb brushed against my nipple.
Each time, I flinched and struggled to stifle the faint moan threatening to escape my lips.
“Just touching my breasts like this is nice, too.”
“If you like it… then do it more often.”
“Runi, what’s the occasion today? Is this some sort of surprise event for me?”
“It’s, it’s not that at all?!”
“That’s odd.”
“I’m going to get fucked anyway… so this feels more suited to me than just being pounded roughly.”
The two hands that had been caressing my breasts suddenly withdrew.
Immediately afterwards, my sister’s tongue touched my nipple.
“Slurp…”
“Hmph…♡ Ha, I didn’t say you could lick it…”
“Is it not allowed to lick?”
She stuck her tongue out long and licked my nipple with just the tip.
While continuing this tongue play, she lifted her chin and looked up at me with a gentle gaze.
What on earth is this face?
It’s the sort of face that makes me unable to bring myself to say ‘no’.
Was my sister always this beautiful?
Of course, she has a pretty face, but was her appearance ever so overwhelming that it made my train of thought come to a complete halt?
“… Ha, you can lick it.”
“Yeah, thanks. Mmm♡”
“Hmm…♡”
After just teasing the nipple, she began to lick along the curve of the areola.
That movement of her tongue was incredibly gentle.
It was a gentleness that didn’t fit at all with the older sister who had been pouncing on me until now.
She took the nipple into her mouth and sucked on it a few times, then moved her lips to the other breast.
“Slurp…♡ Slurp♡”
“Huuuuh…♡ Ugh…♡”
I realised that the tips of my breasts were throbbing and slowly beginning to swell.
Perhaps because the stimulation was continuing at such a slow pace, the sensations felt incredibly vivid.
“Slurp…♡”
Her tongue slipped away from my breast.
I could predict all too clearly where her lips and tongue would touch next.
-Swoosh!
“Thank you, Runi. Thanks to you, I’ve recovered from my fatigue a little.”
She neatly helped me into my dress and hugged me tightly once more.
“Eh…?”
Surely it can’t end like this?
After licked my breasts so sensually and provocatively… is that it?
“Sis, aren’t you going to… do more?”
“As you said, Runi, I’ve been taking you roughly all along, and we’d already done it once before I came over, so I’m satisfied.”
It was routine for her to have sex two or three times at the very least, even though she claimed it wasn’t enough.
I couldn’t believe that my sister, who was usually like that, would call it a day after merely licking and sucking my breasts a few times.
“I, I see.”
Holding onto a deep sense of regret, I lay still in my sister’s arms.
But my body kept twitching involuntarily.
It felt as though my body was beginning to heat up endlessly, in a way that was different from when I’d faced my sister after masturbating.
“Ugh…”
My pussy was already dripping with sticky juices, making the inside of my thighs feel clammy.
My sister lay there with her eyes closed, seemingly oblivious to my state.
“Sis.”
“Hmm?”
She opened her eyes at the sound of my voice.
I’d thought she’d properly realised what state I was in, but she just smiled lightly and rubbed her cheek against mine.
Is this the devil who controls human sexual desire?
There’s a woman right in front of me whose body is burning up and who can’t hold back, yet she’s reacting as if she’s completely oblivious to it?
“Haa…”
It was, quite literally, a sudden turn of events.
“It’s not as if I’m blind…”
“Runi, what did you say?”
If this was going to happen, she should have refused from the start.
Why did she lick my chest so sensually, as if she was going to go all the way, only to leave me hanging?
“It’s nothing.”
A sudden wave of resentment began to well up inside me.
This resentment was focused solely on the fact that my sister wasn’t taking me.
“Just having Runi here by my side is a huge help to me.”
“Right, well, I’m glad to hear that.”
“It’s all thanks to Runi. If you ever need my help, Runi, don’t hold back—just let me know anytime.”
“Well, it’s now, then.”
“Now?”
As my sister’s utterly baffling reaction continued, my frustration burst out of my mouth.
However, that word was far too blunt—and not like me at all.
“Sis, are you a eunuch?”
“Eh…?”
I slipped out of her embrace and flung off the dress I was wearing in one swift motion.
The same went for my knickers.
-Squelch!
“Can’t you see this? It’s soaking wet. Because you sucked on my breasts.”
Seeing her just staring at me with a flustered expression, I moved even closer and spread my legs.
“Can’t you see?”
“You’re not acting like yourself today, Runi.”
“You’re the one who made me act out of character.”
“Is it because of me?”
I pressed down on her shoulders as she tried to sit up, forcing her to lie still.
“Lick me.”
“Did I hear you wrong?”
I don’t know why she’s asking that sort of question even in a situation like this.
Did she go and get her cock cut off on her way back from finishing her work or something?
“Oh, for God’s sake! You’ve got me all worked up, haven’t you! So either go and lick my pussy, or bang me like a dog! Just do something!”
“Runi… Mmmph!”
Frustrated, I pressed my pussy firmly against her mouth to shut her up.