Using a Mysterious Spellbook Ended Up Creating a Slave Harem - Chapter 59

 Yuzuha and Iroha Sister Bowl – Part 1

On January 4th, I left home in the morning to arrive at the sex room. Thinking about what was to come today while on the train, it was tough keeping a loose grin off my face.

The travel time felt long, but upon reaching the apartment and checking, it was the usual duration. Passing through the automatic lock, I followed the familiar path and stood in front of the room where Iroha and Yuzuha were waiting.

When I rang the doorbell, Iroha answered. While waiting for the front door to unlock and open, it was also Iroha who came out of the room.

"Happy New Year."

"……Happy New Year, Iroha."

"It must have been cold outside, right? Hurry and come in."

"Yes. Thank you."

First off were the New Year's greetings. Seeing her for the first time in six days, she was acting properly, keeping in mind the possibility of being seen by others.

Once inside and after the inner lock was engaged, Iroha shifted her attitude back to that of a crest-bound slave. Escorting her as she bowed respectfully, I headed down the hallway toward the living room and opened the door.

"Big brother～!♪"

With a light impact, someone threw their arms around me. Well, I already knew it was Yuzuha.

"Yu-Yuzuha!? What are you doing to Master?!"

Yuzuha wrapped her arms around my back and rubbed her face against my chest. Finding her pampering behavior adorable, I gently embraced her back.

Iroha raised her voice in flustered panic at her younger sister's sudden behavior. She clearly hadn't expected this action at all.

"It's an expression of affection toward Master, Sister."

"You mustn't! That is disrespectful to Master!"

"……I-Is it no good, Big Brother……?"

Still clinging to me, Yuzuha looked up at me with upturned eyes. On top of that, her eyes glistened with tears brimming at the corners.

An expression and attitude her elder sister would never pull off, it stimulated my protective instincts in no small way. Taking full advantage of being the youngest among the crest-bound slaves, this attack was fresh and resonated deeply with me.

"……I, I guess it's not bad?"

"Master?!"

"Well, I don't have a younger sister myself. Being treated like this feels pretty fresh."

"I-Is that so……? Well, if Master is fine with it, then there is no problem."

"I'm so happy! Thank you, Big Brother!♪"

Yuzuha pressed her body tightly against mine with a beaming smile. Well, since her appearance is virtually identical to Iroha's, having a different attitude and demeanor actually makes it twice as sweet for me.

"There, there. ……Now then, are both of you ready?"

"Yes. No problem at all."

"Yep. I'm ready anytime."

"Got it. Then I'll go get ready too."

"Understood. Right this way, please."

Without needing to be told, Iroha understood and led me toward the bathroom. After she prepared what was necessary and left the dressing room, I stripped naked and entered the bathroom.

＋＋＋

After washing my body clean and polishing up my groin, I wrapped a bath towel around my waist and stepped out into the chilly hallway. Realizing I had forgotten to decide on the next step, I headed to the sex room first.

When I knocked on the door, Iroha replied. Thinking "as expected," I opened the door and entered the heated room where the sisters were standing by.

"We have been waiting for you."

"Welcome, Big Brother."

"……You girls are well prepared."

The two greeting me standing straight up were already in their underwear. Their almost identical, undeveloped bodies were wearing matching bras and panties.

Looking closely between the two half-naked girls, the physical differences were even harder to tell apart than before. It seems Yuzuha has properly grown, even if only a little.

"I am so sorry. Um, Yuzuha was……"

"Sister! Unlike you, Yuzu has been waiting since summer break, you know?"

"……Meaning, you couldn't hold back anymore?"

"That seems to be the case……"

"I've been enduring it for so long."

"Got it. Come here, Yuzu."

Yuzuha looked genuinely thrilled at my words, coming closer in a way that was undeniably cute. Nestling her small body snugly into my arms, I gently stole a kiss from her sweet lips.

Tracing my palm over the fresh skin of a middle school girl, I sucked on her soft lips. My erect penis, sandwiched between our bodies, felt like it was growing even firmer.

"Mm……, chu, chuu"

"Chuu, ah……, Big Brother……"

"Yuzu……, you're cute. ……Nn-chuu"

Holding her tightly, I indulged in a kiss for the first time in four and a half months. After enjoying a simple lip-locking kiss for a while, I released Yuzuha from the kiss and embrace.

Left out, Iroha had a subtle look on her face. It seemed like a mix of wanting affection herself, but not wanting to interrupt her younger sister's joy at being doted on.

Doting on her next would be fine, but she's available anytime. Today takes priority for Yuzuha, I thought as I moved to the next step.

"Phew…… alright, can both of you take them off?"

"U-Understood, Master♪"

"Yes! Big Brother♪"

The two obediently complied with my naughty command. First removing their bras, they exposed their closely matching slight breasts at the same time.

While Iroha's nipples were a lovely, light pale pink, Yuzuha's were an even fainter shade. Among the crest-bound slaves, their feature was having the lightest pigmentation of all.

While staring intently at the sisters' nipples with those thoughts in mind, their fingers hooked onto their panties next. Sliding down smooth skin that felt great to touch, they revealed their hairless pubic mounds.

Finally, bending forward, they slipped their panties off one leg at a time. If Nanako or Erika did a pose like that, their breasts would dangle tantalizingly and create quite a scene, but unfortunately, that wasn't the case with these flat-chested sisters.

Unaware of what I was thinking, the two stood naked in front of me as if displaying their bodies. I responded to their actions by taking my time to admire them.

Even before, there were few physical differences between them, but now it has become even harder to spot any difference than back then. They are sisters who look like they'll become identical in physical build in less than a year.

"Hmm…… Yuzu, what are your three sizes now?"

"Right now, from top to bottom, it's 76, 57, 78 with an A-cup. Oh, and my height is 147 cm."

"What!! ……I-It's fine. I'm still winning by 1 cm in various areas……"

"……Iroha?"

"Y-Yes?! ……S-Should I state mine as well?"

"If I remember correctly…… your height is 148 cm, and your three sizes are 77, 56, 79, right?"

"T-That is correct……"

"Alright! I'm almost about to overtake Sister!"

"Mmgh…… B-But I'm a B-cup, you know! ……Even if barely!"

Watching the sisters argue at such a low level made me feel a bit pitiful. The next smallest among the slave companions is Rina with an 85 cm E-cup, and even Otowa-chan, a candidate slave, is an 81 cm C-cup.

"Alright, alright. Stop arguing. ……Now then, next up."

It was about time to sheath my towering erection, which was pushing up against the bath towel, into a warm, wet sheath. Turning my gaze toward the two sets of bedding laid out in the room, an idea came to mind.

"Alright. Down on all fours on top of the futons."

"Y-Yes!"

"Okay♪"

I warmly watched the two hurry to obey my command. Splitting onto the left and right futons, I took position behind the sisters on all fours.

"Spread your legs a bit more. ……Ah, Iroha, about that much is good. Yuzu, a bit more…… yep, stop right there."

I moved to perform the vagina comparison that I had planned back during summer break but couldn't do. I was curious to see what differences existed between the female genitalia of these twin-like sisters.

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