While I Was Shutting in My Room for One Year, My Parent Remarried and Now I’m Living Together With Super Beautiful Stepsisters - Chapter 12-13

Chapter 12: Chubby Big Sis and the Oblivious Me

In the end, only I remained a loner as the first day of high school came to a close, and after-school time finally arrived.

Yuzuna went to karaoke with her gal friends from class, and Anzu said she was going to hang out at the station with Yamada or something like that.

While my stepsisters made friends and settled into high school, I alone felt out of place… Sigh.

Even so, there was one person who came over to me once after-school time arrived.

That was—.

“Come on, Aoto-kun. Let’s go to the supermarket as promised, okay?”

Of course, it was Momiji.

☆☆

Momiji and I left the high school and headed to a supermarket on the way home that was neither big nor small.

Along the way, Momiji kept looking at me with an unusually cheerful face.

“Today was fun, wasn’t it, Aoto-kun?”

“You might think so, but… If you hadn’t done that teasing thing, I could have had a normal high school life.”

“Huh? You’re making it sound like it’s my fault, but you were already alone before I even talked to you, Aoto-kun.”

“…Well, that’s true.”

I couldn’t deny it normally, so I faltered.

There’s no doubt that it was my fault I became a loner.

“But it’s okay. To keep weird bugs from coming near you, Big Sis will protect you, okay?”

“Huh, weird bugs… like what?”

“You know… cute girls other than us sisters, or cute girls from class, or cute girls from outside class, or cute upperclassman girls…”

“Th-that’s fine already! I get it!”

Momiji kept repeating “cute girls” in a mysteriously cute way, so I stopped her before it went on forever.

“Hey, Momiji. Just so you know, do you really think cute girls like the ones you mentioned would swarm around a dull guy like me?”

“But they actually are swarming, right?”

“Huh? Swarming? Who is?”

“Cute girls like us♡”

“That’s because our parents remarried!”

Besides, for them to call themselves cute girls… Well, I admit they actually are cute girls.

Momiji speaks in a tone that’s hard to tell if it’s a joke or serious, and that’s what makes it tricky.

“We’re at the supermarket now. So, what should we make for dinner tonight~♡”

Momiji skipped lightly as she entered the supermarket.

In contrast, I followed behind her with the low energy of a kid dragged along on parents’ shopping.

“Ground meat is on special today, huh? Since it’s a good deal, how about hamburgers? Oh, but soboro donburi sounds tasty too.”

Momiji pondered in front of the meat section and put products into the basket.

After that, she went around the vegetable section and the prepared foods section, filling the shopping basket with a ton of ingredients, then went through the checkout and started putting the bought ingredients into the eco-bags.

Today’s a huge amount of ingredients again…

It’s been four days since we started living together, but Momiji has made all the meals.

For the past year, I had eaten Ms. Mitayama’s home cooking, but Momiji’s cooking was just as delicious as hers.

Apparently, even before our parents remarried, Momiji had always made the meals in place of her mother, who came home late from overtime.

“Momiji, you’re… really amazing, aren’t you?”

“Wh-what’s that all of a sudden?”

When I praised her, Momiji made a blank face.

“To suddenly praise me like that… Could it be, Aoto-kun? You’ve fallen for Big Sis!? Incest is definitely not okay, Aoto-kun!”

“That’s not it at all! I don’t even know where to start tsukkomi-ing!”

“Tsukkomi!?”

“Ah, forget it, it’s nothing after all!”

Momiji was messing around, so I took back the one word that had slipped out in admiration.

Why am I getting teased by someone younger…

“Hehe. Just kidding, just kidding. I got so happy that I dodged it.”

“Why’d you get happy?”

“By the way, what do you mean by ‘amazing’? I’m just doing the normal things in a normal way, you know?”

“That’s exactly why I think you’re amazing. With cooking and laundry and cleaning too… Even when I offer to help, you insist on doing it all yourself.”

Of course, I had offered to help with housework several times, but Momiji stubbornly refused to let me do any of it.

“I just love taking care of people. So you can rely on Big Sis without holding back, okay, Aoto-kun?”

“Ah, relying… ”

Being treated completely like the younger one lit a fire in my big brother heart.

In that case…!!

I took the two eco-bags stuffed full of ingredients in both hands myself.

“Huh? Aoto-kun, two of them? They’re heavy.”

“I’ll carry both. I’m the big brother, after all.”

Take that, Momiji.

Now I’ve shown some big brother dignity—

“Hehe♡ Aoto-kun’s amazing, so cool? Here, a reward head pat.”

Momiji pressed her chest against my body, stretched up a bit, and patted my head.

Ugh… I thought I was making a point as a brother, as a guy… but her big sister response overpowered it.

I felt an incredible sense of crisis.

This is bad… At this rate, I’ll end up as the little brother!!

—

Chapter 13: First Appearance!? The Mysterious Big-Breast Mama Closes In

To show my dignity as a big brother (just plain stubbornness), I walked home carrying the eco-bags full of ingredients in both hands.

“Haa… haa…”

“Aoto-kun, should I carry them after all?”

“I’m… fine!”

But honestly, with my shut-in stamina, it was pretty tough.

I moved my heavy legs, watching sweat drip to the ground.

Man, I really have no stamina…

Well, after spending a whole year holed up in my room playing games, I guess it’s no surprise.

Feeling that reality sink in, I finally reached home and immediately set the eco-bags down on the entrance step.

“Finally made it…”

“Ugh, Aoto-kun, you’re so stubborn. But thanks, Big Brother?”

Momiji called me that with a teasing tone, deliberately overdoing it.

Wh-what’s that, Big Brother, you little—!

“Now then, Aoto-kun.”

“That was a quick change of address.”

“Hehe, to think you wanted me to call you Big Brother. What a per-vert, Aoto-kun♡”

“That’s not what I meant, and I’m not a pervert! Besides, you’re the one Yuzuna called ‘in heat’!”

“Shh! I’m not! I’m not in heat!”

When I mentioned “in heat,” Momiji’s relaxed expression flipped, her face turned bright red, and she inexplicably lost it.

Everyone has their “trigger word,” but for it to be “in heat” of all things…

“I’m not! Not in heat!”

“Okay, okay, stop shouting ‘in heat’ already.”

I stopped Momiji’s repeated shouting of “in heat” while taking off my shoes to enter the house… Wait a sec.

“Hey, Momiji, are these black high-heeled shoes yours?”

“Huh? …Oh! If those are here, that means—”

Just as Momiji reacted like she realized something, the door connecting the living room to the hallway opened.

The person who appeared from the living room was… huh…?

“Well, well, you two went shopping together and came back so chummy. You’re already getting along so well, how reassuring.”

She had a gentle smile on a small face, with strikingly glossy fair skin.

Her loosely wavy, straight hairstyle and droopy eyes gave her a soft, warm aura.

And above all… even her clothes and the apron over them couldn’t hide the sheer size of her outrageously large breasts.

Her waist was slim, but her chest, hips, and thighs were so voluptuous, with an overwhelming body line.

Th-this, this person, could she be…?

“Nice to meet you, Aoto-kun. I’m Nanoka, the mother of Momiji, Yuzuna, and Anzu, and now married to your father. I’m your mama, Nanoka-mama!♡”

“S-Stepmother!?”

With an ideal body shape that left no doubt about her genetics, the big-breast mama who could only be the mother of those three sisters had appeared.