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"I've always liked you. Please go out with me."
The official proposal to start dating from Ayaka came when everything was over, right after I had finished showering.
Sitting on the bed, Ayaka—unexpectedly—confessed her feelings to me. The fact that she was wearing that gothic lolita dress again added a sense of formality that made me nervous.
I had assumed Ayaka would just become another friends-with-benefits like the other girls. But what awaited me wasn't that—it was a formal request to be in a relationship. A genuine love confession, something even Aika had never given me.
"Ayaka, I—"
Before I could finish, Ayaka shook her head, stopping me. It seemed she already understood what I was about to say.
"I kind of figured you had someone special. And that you're sleeping with other girls too. But I'll say it anyway—please make me your girlfriend."
It felt a little off to hear this after we'd already indulged in each other's bodies, but getting a dating proposal from a second-year middle school girl was… something else. Was I really about to make this underage girl my lover?
Wouldn't friends-with-benefits work?
That was the sleaziest thought I could've had, and even I knew better than to say it out loud. That would've been unforgivable. Hell, Anzu might've stabbed me right then and there.
"If it's just friends-with-benefits, you probably have plenty already, right? So what's wrong with having multiple girlfriends too?"
That suggestion made even me widen my eyes. Ayaka was saying she wanted to be my "second." Well, actually, with Anna in the picture, she'd be the third. The exact number wasn't clear, but it definitely wasn't what you'd call a faithful relationship.
"I don't mind being low priority. I just want to go on dates like today sometimes, and… not the rough sex like with Anzu, but gentle kisses and gentle sex. A relationship where I can be spoiled."
The not rough sex part was important, I realized.
My relationships with Anna and Anzu were purely physical. We weren't lovers.
But Ayaka wasn't seeking a sexual relationship—she wanted an emotional connection.
As you know, I have Aika, my daughter.
To me, she's not just my daughter—she's also my lover and my sex partner.
The thought of betraying Aika by accepting Ayaka's feelings scared me.
"Then… even if it's just for today, please be my boyfriend. If it makes you happy, then think about my confession later. I'll wait as long as it takes."
Ayaka was desperately holding onto her smile.
Even someone like me could tell it was the bravest face of a girl already preparing to be rejected.
I couldn't keep her waiting forever.
I had to give her an answer—right here, right now.
"If Kasahara-san becomes Ayaka's boyfriend—"
Anzu, who had been silently watching her best friend's confession, suddenly cut in. As if throwing Ayaka a lifeline, she made the ultimate proposal.
"Then I'll be Kasahara-san's friends-with-benefits. Use my body whenever you want to fuck or grope me."
I was stunned.
This wasn't just Anzu offering herself up for her friend'sounded more like a package deal—Ayaka and Anzu together.
"So? I think we'd make pretty good sex partners, don't you?"
Anzu's eyes were unwavering. And honestly, her body was incredible. Her pussy was otherworldly tight, and as for her breasts—I doubted I'd ever meet another middle schooler with such an amazing pair.
"Take Ayaka's heart and my body. We're two halves of one whole—two girls making one girlfriend."
Faced with such an enticing proposal, even I was swayed.
I could have Anzu's body whenever I wanted.
And Ayaka came as part of the deal.
Opportunities to have two beautiful girls like this wrapped around my finger wouldn't come often after leaving Sazanami Manor.
"But don't you have Shinda-kun?"
I desperately tried to deflect, hiding my fluster. Anzu had Shinda-kun, her middle school boyfriend. Wouldn't this be cheating?
"Shinda-kun is the boyfriend of my heart. But he's bad at sex, and his dick isn't that big. I still prefer Kasahara-san's hard cock."
"Ugh—"
While I was distracted by the bewitching sight of a middle schooler, she reached for my crotch again. Even though we'd just had sex, the thought of doing it again made my body react on its own.
"See? An adult's cock really is something else. No middle schooler compares."
So Anzu hadn't been satisfied with just middle school boys after all.
According to her, her heart belonged to her boyfriend, but her body was mine.
"I love Koichiro's cock too. When it's inside me, I feel like the happiest girl in the world."
Ayaka, now fully in girlfriend mode, also reached for my crotch.
Could I really refuse this offer?
With two such alluring girls in front of me, could I really turn down this immediate pleasure—?
"Then it's official."
Anzu, now covered in my cum, declared with satisfaction. Next to her, Ayaka was shyly looking down. Of course, both were still completely naked.
In the end, I succumbed to the two-girl sex offensive.
Anzu's hips milked me dry over and over, while Ayaka's kisses melted my brain.
Even though I'd taken performance enhancers, there was no way I could compete with two middle schoolers in heat.
And so, I agreed—to become Ayaka's boyfriend and Anzu's friends-with-benefits.
"F-Fine! I'll be Ayaka's boyfriend!"
It was probably the most pathetic acceptance of a confession in history. With Anzu riding me and squeezing my cock inside her, I accepted Ayaka's feelings.
And the result was… this situation.
Now, I was allowed to call Ayaka by her first name.
"Well then, I'll get out of your way."
Anzu quickly got ready and left the love hotel.
The fact that she'd sneakily gotten my contact info before leaving told me she definitely intended to keep our friends-with-benefits arrangement going.
Now, only Ayaka and I remained in the love hotel room.
The atmosphere was awkward—I didn't know what to say.
Honestly, I'd never been in a proper relationship before, so I had no idea how to act around a girlfriend.
"...Can we kiss?"
Ayaka's suggestion made me tilt my head.
We'd already kissed plenty during sex—rough, passionate ones.
But that wasn't what she meant.
"Please forget those earlier ones. This… is our first kiss."
Sitting on the bed, Ayaka gently closed her eyes.
She didn't want an animalistic kiss—she wanted a real, tender, lovers' kiss.
Silence hung in the air.
Even though I could kiss her so aggressively during sex, doing it like this—just the kiss—made me inexplicably nervous.
My heart pounded like it was my actual first kiss.
Finally steeling myself, I moved closer to Ayaka.
When I touched her shoulder, her small body flinched slightly.
Her warmth seeped into my palm.
Had girls always been this soft?
"Mmm…"
And then, we shared the gentlest kiss of the day.
No tongues.
No swapping saliva.
Just lips barely touching—soft and simple.
"Now we're officially a couple."
Ayaka smiled shyly.
Even though she knew she wasn't my only one.
Even though she knew there was another girl I loved.
Her smile… looked genuine.
"Let's go."
Lost in sex, we'd stayed out way too late.
As her boyfriend, there was only one thing left to do.
"I'll walk you home. I don't have a car, though."
Standing up from the bed, I looked at her.
At first, she seemed confused, but then—
"Okay!"
With a bright smile, she threw herself into my arms.
Our hands naturally intertwined.
A relationship with a thirteen-year-old girl.
We both knew this wasn't real love.
But at the very least, until we reached her house, I'd be her proper boyfriend.
We didn't need to talk about breaking up—we both understood this arrangement would dissolve on its own.
◆◇◆◇◆
"Thank you. Today was really fun."
I parted ways with Ayaka in front of her house.
Her home was, to put it mildly, a mansion. It was the first time I realized she came from a wealthy family.
"Oh, I forgot something."
Had she left something behind? Just as she was about to enter, Ayaka ran back to me.
Then—
"See you tomorrow."
With the brightest smile, she gave me one last, tender kiss.
I felt embarrassingly like I'd regressed to middle school myself.
For a second, I almost really fell for her—but that was as far as it could go.
After all, someone was waiting for me.
"If Aika saw this, it'd be a disaster."
Watching Ayaka disappear inside, I muttered to myself.
Even though I knew it was just pretend, a tiny pang of guilt settled in my chest.
"Too bad. She saw everything."
My heart nearly stopped.
Standing right behind me was Mizuki.
And next to her—of course—was my beloved daughter, Aika.
Originally, Mizuki was supposed to be looking after Aika today. Them being together wasn't unusual. But the fact that they were right here, in front of Ayaka's house, was undoubtedly Anzu's doing.
Or maybe Mizuki had been lying in wait, knowing this would happen.
Both Anzu and Mizuki were calculating like that.
There was no doubt they'd orchestrated this confrontation between me and Aika for a reason.
"Why…?"
Even so, all I could do was stand there, frozen.
Ayaka and I had been caught playing lovers.
The kiss, walking her back hand-in-hand—everything had been witnessed.
"...Dad, you got close with another girl again."
Aika had always wanted me to have more friends-with-benefits.
But the loneliness in her voice now… was it because she sensed something more between me and Ayaka?
If so, that was a misunderstanding.
We were just pretending to be lovers—it wasn't real.
"It's fine. Sleep with as many girls as you want. That's what I've always wanted too."
Aika spoke as if convincing herself.
Her smile was heartbreaking—like she was forcing herself to make a sacrifice for the world.
I hadn't gone on that date today just to make her look like this.
"Relax. Aika had her own fun today too."
Mizuki, completely oblivious to the mood, chimed in cheerfully.
Aika stared at her in shock, as if she couldn't believe what she was hearing.
"You should've seen her, old man. Today was wild. I introduced her to this delinquent upperclassman, and—man, this guy's a total player. At first, Aika kept refusing, but—"
"Wh-What are you saying, Mizuki?!"
Aika was panicking.
From her reaction alone, I couldn't tell if Mizuki was joking or serious.
But my heart was pounding harder than ever.
"Guess that's what happens when a guy's that experienced. Even Aika folded in less than an hour. His seduction game was insane, but his aftercare was apparently just as—"
SLAP!
A sharp sound echoed through the quiet neighborhood.
I'd never seen someone slap another person that hard before.
"Stop making things up!!!"
Aika glared at Mizuki with eyes full of fury—maybe even murderous intent.
Tears welled up in her eyes.
Seeing that, I realized Mizuki's words were nothing but lies.
"S-Sorry…"
Holding her reddened cheek, Mizuki stood frozen, looking more shocked than I'd ever seen her.
Like a child slapped by a parent for the first time—on the verge of tears.
Normally, this would've been brushed off as a joke.
We all knew Mizuki loved this kind of teasing, and we rarely took it seriously.
But this particular joke was a taboo for Aika.
Deep down, Aika had a twisted desire—to be gang-raped.
She wanted to be violated by the kind of scum who saw women as objects.
She'd sworn she'd never let it happen, but bringing it up as a joke was worth that slap.
Being raped by a delinquent who knew how to break girls?
That was exactly the kind of fantasy Aika harbored.
And Mizuki knew that.
She, of all people, should've understood why that joke crossed the line.
Aika was aware how twisted her desires were.
That was why she kept them buried deep inside.
Especially in front of me—her father and lover.
That was why she'd tried to run away before the school trip.
Why she'd left me.
To hide her shameful self from me, she'd even considered cutting ties forever.
Peace and quiet.
To anyone, that sounded ideal.
If the peaceful life in front of us could last until we died, how happy would that be?
But I knew there was another path.
Having lived as a virgin for thirty-four years, only to spend this summer defiling elementary and middle school girls, I understood the world that could unfold before her, too.
I knew she didn't want it.
I understood how appealing Aika's peaceful world was.
But still—
"…Sorry, I went too far."
Maybe snapping back to reality at the sight of Mizuki on the verge of tears, Aika apologized quietly.
She still didn't seem to understand why her best friend would say something like that.
I didn't either.
But looking back, maybe even the ever-composed Mizuki had wanted to lose her cool a little.
For what reason, we all carried our own darkness inside.
"Nah… I was the one who messed up."
For once, Mizuki seemed genuinely remorseful.
She'd made Aika that angry—of course she was.
"Let's go home."
As if to say what's done is done, Aika turned on her heel.
No matter how she felt inside, the fact that they were going back to the same place was precious in itself.
If this had happened before the school trip, it would've been a farewell.
But since they were going home together, they'd have countless chances to make up.
In fact, just heading back together meant they were already halfway reconciled.
We could go back to Sazanami Manor.
Together with Aika and the others.
Feeling that happiness deep in my chest, I watched my beloved daughter walk ahead of me.
Aika's ideal world—
If I could make even a part of it come true—
And from that day on, our lives would change drastically.