Chapter 18
“Woof…♡“
‘Woof’? Unless I’d misheard, my younger sister Yuna had just accepted my absurd request without a moment’s hesitation.
Who on earth would want to be someone else’s dog?
I certainly didn’t.
But this also meant that Yuna’s desire to keep me by her side was that strong. At least, that’s how it looked to me.
To be honest, I was a bit taken aback, but I quickly put on a calm front.
‘Since it’s come to this, let’s just see it through to the end.’
“Right. When it’s just the two of us, I’d like you to act like a puppy. Oh, that’s right. When you’re playing the puppy, I’ll call you ‘Nabi’. Is that alright?”
“Woof!”
“Good. Right then, Nabi, climb up onto my stomach.”
Yuna did exactly as I said and lay face-down on my stomach. She stared intently at my face, sticking out her tongue and panting heavily.
I was a little moved by how earnestly she was acting.
My cock was moved.
Yuna’s breasts, which were by no means small, pressed against mine and were squashed flat.
As Yuna had simply worn a tracksuit underneath her long puffer jacket, I simply grabbed the zip of her top and pulled it down.
Then, Yuna’s cleavage was laid bare right before my eyes.
“Heeek♡ Hah… Squee… Squee♡”
Just as I was wondering what on earth she was up to whilst I was trying to take off her top, Yuna slid her bottom downwards, trying to rub her crotch against my cock.
Of course, I had no intention of letting her do that.
-Squeeze
I reached down with my right hand and gripped Yuna’s bottom firmly.
“Kyaaah♡“
“Shh… No, you can’t. You mustn’t do that without my permission. If you listen to me, I’ll give you a reward later, so try to hold back.”
“Mmm!”
Hearing about the reward, Yuna remained still, half-expecting it and half-thrilled.
There was nothing more endearing than her obeying me the moment I asked her to do something.
I stroked Yuna’s head with my left hand.
“Right. Shall we start by taking off everything except your knickers?”
“Woof!”
In an instant, Yuna stripped completely naked right there on the spot, left in just her knickers. She was wearing a famous brand of sports knickers.
But, as luck would have it, the knickers were grey, so the crotch area, stained with the love juice from her pussy, was dark and damp.
I wondered if I should take off her underwear as well, as leaving it like this would make Yuna feel rather uncomfortable on her way home later.
Then a thought suddenly occurred to me.
‘Wait a minute… I suppose it wouldn’t matter if I just left her wearing it?’
After all, Yuna had come here wearing a long down jacket, so I just needed to put a tracksuit top and bottoms on her.
There’s no need to make her wear her underwear, is there?
Having decided to enjoy the moment with her still wearing her underwear, I pressed my middle finger firmly against Yuna’s perineum.
“Kyaaah♡ Ooh♡”
Yuna threw her head back and arched her back.
Her pupils were rolled back, and her half-closed eyes looked incredibly arousing.
“Do you like it? If you do, bark twice.”
“Woof woof♡ Heeek♡“
To be honest, I was half-freaking out, but I knew full well that if I didn’t do this, I’d be the one getting squeezed dry, so I had no choice but to carry on with this nonsense.
“Lick♡ Slurp♡“
Without being told, Yuna clumsily licked my nipple, pretending it was some sort of caress.
Appreciating her effort, I began to fondle Yuna’s body in earnest as I continued speaking.
“Nabi?”
“Woof…♡”
“You can use polite language when you speak. Just act like a puppy and treat me as if I were your master.”
“Yes, ma’am♡”
It seemed her tongue had completely loosened.
Honestly, I wondered why things had turned out this way when we hadn’t even started the foreplay in earnest, but I soon realised the reason.
‘Hmm, is it because of my scent?’
Ever since she’d jumped onto my bed, Yuna had been sniffing away, taking in my scent. It seemed she’d become intoxicated by the pheromones emanating from my body, leading her to this state.
Honestly, there was no other way to explain it.
‘Well, whatever. It suits the puppy concept, so I’ll just let her be.’
“Butterfly tongue.”
“Beee♡”
As I stuck my tongue out, Yuna’s saliva fell straight onto my chest.
Without hesitation, I lunged towards Yuna’s face.
“Heeep?!”
Startled by the sudden intrusion of a strange object, Yuna tried to push it away with all her might, but her tongue wouldn’t obey her, so she had no choice but to submit.
-Slurp, slurp
And so, Yuna’s tongue and mine became entangled, moving this way and that in response to the movements of my tongue.
The sound of two people greedily exploring each other’s mouths echoed through the hospital room.
And even amidst all that, I didn’t keep my hands still.
My hands busily played with Yuna’s bottom.
Yuna’s bottom was as soft as mochi. I began to lose myself in the dual sensation of her bottom—firm yet soft at the same time.
The more I touched her, the more I felt myself becoming addicted to this act.
“Mmm♡ Slurp♡ Slurp♡”
And Yuna, too, was losing herself in my skilful tonguework.
Tears began to well up in her half-closed eyes.
And the meaning behind those tears was undoubtedly not pain or sadness, but tears of pleasure.
If Yuna really were a puppy, wouldn’t her tail be wagging madly from side to side by now?
When I tightened my grip and squeezed Yuna’s buttocks firmly…
“Huuup♡”
She rolled her eyes back, and juices were oozing from her pussy, soiling my lower abdomen.
At this rate, Yuna’s love juices were going to soak through my underwear completely.
I continued kissing her whilst slowly stripping off my clothes and Yuna’s, one by one. Perhaps because Yuna was so lost in the moment, undressing her wasn’t particularly difficult.
Before we knew it, we were both completely naked.
My cock was almost fully erect and Yuna’s pussy was already soaking wet, so normally this would have led naturally to penetration, but it didn’t.
‘To be honest… I still feel a bit of a barrier.’
No matter how much I’d been reincarnated into this world, Yuna had been my younger sister for twenty years.
No matter how seductive her body was or how much she was making a move on me, I couldn’t help but push her away a little.
Our relationship was bound by blood. We were people born from the same mother’s womb.
I pulled my lips away, pushed Yuna back onto her back, and climbed on top of her instead.
“Haaah♡ M-Master…”
Perhaps the position was a bit uncomfortable, as Yuna struggled, but with my weight pressing down on her, she couldn’t move a muscle.
Next, I slid my cock right between Yuna’s breasts.
The two mounds wrapped around my cock snugly.
In my previous life, even when I was with my ex-girlfriend, I’d always hated titfucking and made a point of refusing it, so I’d never actually done it before, but here I was, doing it for the first time.
And the sensation of her cleavage against my cock was indescribably good.
“Ooh…!”
Before I knew it, I was already gently rocking my hips back and forth.
As I did so, the pre-cum oozing from the tip of my cock acted as a lubricant, making the thrusting motion even more natural and smooth.
-Squelch, squelch
It made a similar sound to when I was inside her pussy, but the sensation was completely different.
When I deliberately grabbed Yuna’s breasts and pressed them against my cock, the pleasure doubled.
‘C-crazy…! I feel like I’m really going to come!’
My cock twitched at this unfamiliar sensation, already preparing to erupt.
Deciding I couldn’t stop now that I’d come this far, I just thought, ‘To hell with it,’ and increased the speed of my thrusts.
-Thump, thump, thump, thump
The sound of my pubic bone striking her lower breasts in a steady rhythm rang in my ears.
In that moment, completely consumed by the overwhelming urge to come, I could think of nothing but ejaculating.
“Ugh!!”
-Gurgle, gurgle, gurgle
A stream of semen, easily the most powerful I’d ever ejaculated, shot out of my urethra.
But something felt strange.
‘What the hell… why is it so wet…?’
Instead of my glans touching the dry air of the hospital room, it was pressed against something sticky and damp.
Coming to my senses, I looked down at my cock…
“…♡”
My eyes fell upon Yuna, her cheeks puffed out as she held my glans in her mouth.
“Guh-huh♡“
As I coughed, semen trickled out of my nostrils. Fearing that Yuna might drown in the semen if I wasn’t careful, I quickly pulled my cock all the way out.
At that, Yuna swallowed the thick semen in one go, her Adam’s apple bobbing as she did so.
After that, she licked up every last drop of semen that had dripped from her nose with her tongue, then let out a light burp.
“Gulp♡ Phew…”
What she said next was unbelievable.
“That was delicious… Master♡”
I’m going to lose my mind.