The soft sunlight shining through the gaps in the curtains woke me up from my sleep.

"Uh-huh……"

The warm sunshine shone on my face, but I didn't want to get up right now, so I lay on the bed for about 2 or 3 minutes before getting ready to get up.

"Okay, let me change my clothes before Nana wakes up."

I climbed down from the ladder on the upper bunk and planned to go to the dressing room to change clothes. But when I got down to the floor, I was shocked by what I saw. I was still a little sleepy. It disappeared immediately, bringing me to the MAX state of wakefulness in an instant.

Nana, who was sleeping in the bunk below me, woke up earlier than me today! She was also changing her clothes now, with an expression as if she had just taken off her pajamas.

That was an embarrassing scene that I had never experienced in my life. I could even feel that my face had become stiff.

In contrast, Nana stared at me with her eyes wide open. Nana had just taken off her pajamas, and her skin was almost exposed to more than 90%, but luckily she took off the underwear in her hand. So I still managed to cover part of it, which can be said to be a great blessing among misfortunes.

But... at the junction of the snow-white skin and the shirt, a faint pink can be seen——

"Good morning, brother."

The same gentle and playful voice as usual brought me back to reality, as if I had been petrified.

"Morning...early...morning, good, Nana..."

"Well, brother, did you sleep well?"

"It's okay...but...can you cover up your body?"

After I roared like this, I immediately turned around, but I heard Nana's chuckle from behind me.

"hehe……"

After that, I heard a rustling sound of people changing clothes. After about 2 minutes, I heard Nana's response.

"I've changed it, brother."

When I turned around, I couldn't believe what I saw in front of me, and... I felt that the inside of my nose was extremely hot, and I even felt like something warm was about to flow out.

"Why aren't you wearing any?"

I hurriedly turned around again, but even so, the beautiful scene of Nana, who was naked from the waist up, was remembered forever in the depths of my mind.

"Because...this school uniform is so troublesome to put on...and it's a bit hard to put on."

"Even so, there's no need to take them all off."

"I don't wear underwear to sleep, brother knows."

(What the hell!)

"Hmm...brother, please don't stare at me like that all the time, okay? I can be shy too."

Nana also showed a shy look, but it's no wonder, she is naked now, and it's natural.

"... Anyway, hurry up and change your clothes. I have to practice with Feng later today. Please, please? Anyway, put on your underwear first, and I'll go out first."

"No, no!"

Even though she was naked, Nana still hugged me without caring.

"Wait, wait a minute! It's dangerous in every sense of the word, stop it!"

"It would be very dangerous if my brother leaves now. If we don't change things, it will be too late."

"You know, if that's the case, then change your clothes quickly."

"But, I want my brother to help me change it."

Nana said to me in a coquettish tone, "As a brother, I don't know what to say. Although she usually behaves coquettishly with me, she never acts coquettishly to such an outrageous level. What on earth is she?"

What's wrong?

At this time, I suddenly thought of something. Then, I also wanted to confirm the relationship of one thing, so I immediately moved closer to Nana's neck, and then observed her neck.

……Knew it.

On Nana's slender erect neck, there is an obvious little mark-like thing emerging. If this thing appears, it is no wonder that Nana is so clingy to me today. In this case, I can only listen obediently.

As she said, I helped her change her clothes. Of course, this was just to help her and had no evil intentions.

"Nana...I understand, I'm here to help you."

I said in a tone that sounded like I had given up.

"Thank you, brother. If my brother sees me, it doesn't matter even if it's a shame."

"...That's not possible. I will help you without seeing you as much as possible."

"Brother is really a gentleman."

Nana gave me a feeling of both joy and shyness. At the same time, I carefully put on Nana's bra, trying not to let my eyes meet her exposed breasts as much as possible.

However... because Nana was wearing a front-button bra, it was very embarrassing that she had to wrap her hands around the front.

"Hmm...brother, it's so itchy."

"Nana, please be patient. If you move around, your hands will be messed up."

"Um……"

...Speaking of which, Nana's breasts seem to be bigger than I thought. For this reason, the bra cannot completely cover them.

"The bra size should be just right, but it seems a bit too small. Hmm... I used the physical examination data in the spring as a reference. It may be bigger than that time."

Nana's breasts cannot be said to be small, but are they still in the process of growing even at this size? Didn't you expect that they would have grown to this point without even realizing it?

When I hugged my sister's body, I realized how soft it felt. It turned out to be such a comfortable feeling, which was really surprising. Unlike when I was a child, I often feel a little panicked recently because of such contact with her.

.

"My brother didn't say a word. Is he obsessed with my breasts?"

"How is that possible!"

Feelings such as breast size can all be inferred from the touch of the bra buckle.

"This is such a pity."

(What a pity... what is a pity?)

"Okay, done."

After exhausting all my efforts, overwhelming fatigue came over me. I was a little worried about whether I would still have the energy to train with Feng by then.

"Brother, thank you."

"Yeah, but if this doesn't happen next time, I'll have to solve it myself."

"I know, but...I can't guarantee it."

Hearing what Nana said, I suddenly had a premonition that sooner or later I would fall into this predicament again.

"Anyway, I have to wear the school uniform next, and I will also help."

"Hey, brother is really reliable. I am the most proud brother."

This time it was Nana's turn to put the school uniform on her body. When she looked closer, she realized that Nana's skin was white and beautiful, which made people sigh.

Just when I had this strange idea, another problem arose.

"Brother, the button can't be fastened here. It hurts!"

The chain connecting the uniform top is not long enough, so it will be painful to pull the zipper up any further.

“The size doesn’t seem to fit right.”

"If you forcibly fasten it, your chest will feel very uncomfortable."

Obviously, Estelle prepared the uniforms for us based on Nana's size at the beginning, but if we say this now, it means that Nana's bust is much larger than the standard.

"Brother, what should I do? I can't change my uniform if this continues."

"But you have to wear uniforms. I have no choice but to endure it."

"It hurts! It hurts! Brother, it hurts!"

"I told you, please be patient!"
Chapter completed!