[Reminder] Author here!
I would like to announce an adjustment in the story.
Remember when I said that Yuu's and Mikan's relationship is only a Bro-con and Sis-con relationship? Well, I did some rethinking about that and decided to change it.
P.S. I will be changing Mikan's age to 13, making her only 2 years younger than Yuu. I did some fact-checking, and Mikan's and Rito's age gap is 4 years. I believe that having a 4-year age gap between Yuu and Mikan might be too much for their development. As for the plot, don't worry; the only change is that instead of being in elementary school, Mikan will be a first-year middle schooler at age 13, while Yuu and Rito are first-year high school students at age 15. This way, Mikan will remain in a different school from Yuu and Rito.
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If you're wondering whether I'll get Risa pregnant, well, I won't. You know I can enhance my body using my adaptation ability, right? Well, I can also use this ability to prevent women from getting pregnant with, you know, my... So I'm safe. Well, I'm grateful for that because I don't want to use contraceptives.
"I'm home," I announced, but no one welcomed me home.
"Huh? Normally Mikan would welcome me home," I thought to myself as I made my way to the kitchen to check if Mikan was still asleep or just ignoring me.
Thinking of Mikan right away was instinctive, as Rito being still asleep was a given.
Looks like she's ignoring me, so I called out to her, "Mi-chan, why didn't you welcome me home?"
"Hmph," she ignored me, pouting.
"Is it because I didn't get home last night?" I asked.
Seeing that she was still giving me the cold shoulder, I said, "Are you mad, sis?"
"Why would I?" she answered without looking at me, seemingly upset.
"But I texted you, right?" I explained.
She looked at me and said, "Yes, but still," pouting.
"How about this, sis? Let's take a bath together and talk about it like we did last time," I suggested.
She sighed and said, "Fine."
"I'll head to the bath first. Can you grab my clothes, sis?" I said.
"Okay," she replied.
I then headed to the bath, taking my clothes off. I soaked in the shower to wash over my sweat.
After a while, Mikan opened the door, revealing her naked body.
"Can you wash my back, sis?" I asked.
She then started to wash my back and asked, "So you got yourself a girlfriend, Nii?"
"I did," I answered.
"How? Who?" she asked.
I told her that she's Risa Momioka, a classmate, and we applied for a part-time job yesterday, and things just kind of happened.
"You two just started going out, and you stayed the night with her right away?" she asked.
"Yes, I'm sorry, Mi-chan, but I promise nothing will change between us even if I have a girlfriend," I said to her.
"Did you two do it?" she asked.
"Eh? What do you mean?" I said, trying to dodge that question.
"You know what I mean, Nii," she insisted.
"Ah, eh..." I hesitated to answer her.
"So, did you two do it?" she repeated the question.
"Yes, we did," I gave up and said, but then as I said that, silence came over us.
After a moment, when I was about to say something, I felt two soft- things touching my back, and I swear, I felt her nipples as well. She was leaning on my back.
"Mi-chan?" I called out to her.
"You see, Nii, at first when we talked about nothing changing even if you have a girlfriend, I thought I would be fine with that. But now..." she explained, her voice tinged with sadness.
"But?" I asked.
"I didn't know it would hurt this much, Nii. Just hearing you confirm it, it felt like something heavy came over me. And when you said you two already did it, I couldn't take it anymore. I felt sad and lonely," she explained, tears forming in her eyes.
"Mi-chan, I—" I began, intending to say something to at least try to comfort her.
She cut me off, saying, "You don't need to say anything, Nii," as she wrapped her arms around my neck, hugging me from behind, resting her head on my shoulder.
And then she added, "Can't it just be me, Nii? Just be together with me. I don't want you to go away."
"But I said that nothing will change, Mi-chan. I promise," I explained.
"Even so! I know that if I let it be, we'll go our separate ways eventually. I don't ever want to be separated from you, not ever!" she said, her voice mixed with different emotions.
"But we're siblings," I said.
"No, we're not," she said quietly.
"What—" I began to ask.
"I said, no, we're not!" she repeated when I was about to say something.
I stood up and faced her, then I wiped the tears from her eyes and said, "Go and sit, sis. I'll wash your back."
As I started to wash her, I said, "So, you knew? I thought as much."
"How?" she asked.
"Well, you haven't been even a bit hesitant getting so close to me, you know," I explained.
"You're right," she replied.
"But I let you, right?" I said.
"Hm?" she tilted her head.
"My feelings for you are the same, Mi-chan. I don't ever want to be separate from you too," I explained.
"Then?" she asked.
"But I can't just leave Risa, sis," I said.
"Nii—" she was about to say something, but I cut her off and said, "That's why I told her about you."
"What do you mean?" she asked in confusion.
I didn't explain right away and instead said, "Done!" then added, "I'll head to the bathtub first, Mi-chan."
As I entered the bathtub, she stared at me intently, urging me to continue. I didn't look in her direction; instead, I simply explained myself as I soaked in the bath.
"I told her that I have a thing for my sister, and you will be my first priority over her," I explained.
"And what was her reaction to that?" she asked, finishing cleaning herself before heading to the bathtub.
I waited for her to settle into the bathtub before responding. Once she sat on my lap, I explained, "She said it's okay as long as she can be with me."
"So you're saying it's okay with her for the three of us to be together?" Mikan asked.
"That's what she said," I replied.
"So you'll be dating both of us, Nii?" she asked.
I wrapped my arms around her waist, hugging her, and whispered, "If that's okay with you, then yes."
"Well, as long as I can be with you as well, then it's okay," she replied.
"You sure?" I asked.
"Nii, I know that you've already made up your mind, so it's fine," she replied.
"Thanks, Mi-chan. I love you," I said to her with all of my heart.
"I love you too, Nii," she replied, filled with love.
I then released the hug and said, "Sis, I plan to let her stay with us in this house."
"Yes?" she said, taken aback at what I said.
I then explained that her parents are living overseas and she's alone in an empty house. I planned to let Risa stay in her room, and Risa can put her extra luggage in my room since I don't have that much there.
"So, she'll be my roommate. I suppose it's okay," she said.
"Thanks, Mi-chan," I thanked her.
"It's nothing, and with this, we get to know each other more," she explained.
"Good. I'll set my plan in two weeks. We need to date for at least that long before I try to convince her parents. And about our parents... well, you know them," I said.
She didn't say anything in response to what I said; instead, she rotated and changed her position. Now she's facing me, sitting in my lap, her arms wrapped around my neck.
"Hey Nii, do you plan to create a harem?" she asked.
"Maybe, or maybe not. Well, a harem is a man's dream, right?" I said.
She then just looked at me with a blank expression.
I cleared my throat with a soft "Ahem" and said, "I was joking, Mi-chan," smiling warily.
"Right... Well, promise me one thing, okay? Nii?" she said, smiling, but I felt that smile was kind of scary.
"Yes, what is it, Mi-chan?" I replied.
"That I'll always be your number one," she said, acting spoiled.
I then smiled at her lovingly and replied, "I promise."
It was a loving atmosphere until Mikan suddenly said, "Nii. Let's have sex."
I stared at her with a blank expression as I raised my right hand and flicked her forehead. She then put both of her hands to her forehead.
"Why'd you do that, Nii?" she asked, looking at me with teary eyes, still holding her forehead.
"No," I said.
"Why? You did it with your girlfriend," she said, pouting.
"We can't have your first time here, you naughty girl," I explained.
She said, "Fine," as she wrapped her arms around my neck once again and moved her face closer to mine, then added, "But we can do this, right?"
I'm not stupid enough not to know what she wanted, as her eyes were full of desire, looking between my lips and eyes.
As a response, I wrapped my arms around her waist and moved her closer. I can feel her rough breathing looking at me, biting her lips. I then kissed her for a while without a tongue as I heard her small moans, "hm~," then I stopped.
She then opened her hazy eyes and asked with a soft voice, "Why'd you stop? Meanie."
I smiled at her and said, "Reach out your tongue." As she did that, I kissed her by inserting my tongue first with hers, and then with that, we kissed with our tongues as her moans escaped her mouth from time to time. "Hm~" "Ah~"
We kissed until we were out of breath. Parting our lips, we looked at each other with rough breathing and eyes full of desire. Mikan then said, "You said we can't have sex, but you didn't say we can't do other things, right?"
She then moaned as she rubbed her pussy against my lower half back and forth. "Ahh~" "Nii~" "Hm~"
Yes, at the moment I pull her closer, our lower half is already touching each other. Her pussy is so soft to feel as her pussy touches my lower half.
After enjoying herself for a moment, she looked at me with alluring hazy eyes while moaning and said, "Nii~ Touch me~ hmm~" biting her lips.
'This girl' I thought, then I sealed her lips once again as I put my hands on her small, soft, tiny butts, then I guided her, rhyming her stroke with mine as we moved together. While she was grasping my neck and my hair on the back of my head as we were kissing so passionately, she kept moaning as we kissed, "Hm~" and "Ah~"
After awhile, I got the feeling we're close to being finished, so I lifted her with the sound of splashing water from the tub as we continued on with what we're doing. Carrying her, I exited the bathtub, and instead I sat on the edge of the bathtub.
To stimulate her more, I parted my lips from hers. "Nii~" she called me, moaning, and moved my left hand to support her back as my right hand went to explore her tummy as I kissed her neck. "Ahh~" she moaned, then I bit her collar bone. At the same time, my right hand was fondling her breast while teasing her nipple from time to time, causing her to moan more. "Hm~" "Nii~" "Ahh~~"
And then I moved my head to kiss her free breast, sucking and biting her cute pink nipple as she wrapped her arms around my head and moaning even more, "Ahh~" "Nii~" "More!"
After a moment, I heard my cue: "Nii, I'm cumming!" she announced.
I then released my head from her arms, and I hugged her tightly, laying our heads on each other's shoulders, and I said to her, "Let's cum together, Mi-chan."
We kept rubbing our lower half in rhythm until we reached our climax together. "Yuu-nii!" "Mi-chan!" "Ahh~~"
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Narrator here!
Let me clarify something.
"I'll only be Updating Chapters when I'm Free, Thanks!"
[Random Thought]
Yeah, I think it's a bit fast, but considering the characters' personalities and Japan's culture of confessing first before dating, I think it's just normal for them to develop so quickly. Yuu isn't a typical harem character who is clueless about everything, and Risa isn't someone to take things slow either, especially if you remember when she made a move on Rito that one time in the anime. Also, I don't think I'd like to write many boring arcs. I'll write some, but they won't be long, and I'll use them only as an excuse to time skip and move to more interesting arcs.
P.S. I don't think I can create a slow development relationship when it comes to Yuu's harem. Why? Because this is To Love-ru; most of the main girls in the story are kind of a special case, if you know what I mean.
[Reminder!] I will be changing Mikan's age to 13, making her only 2 years younger than Yuu. I did some fact-checking, and Mikan's and Rito's age gap is 4 years. I believe that having a 4-year age gap between Yuu and Mikan might be too much for their development. As for the plot, don't worry; the only change is that instead of being in elementary school, Mikan will be a first-year middle schooler at age 13, while Yuu and Rito are first-year high school students at age 15. This way, Mikan will remain in a different school from Yuu and Rito.