003 : Sex

Aside from that, it was full of unfamiliar expressions.

The only thing I could barely deduce was that I was attractive, thanks to the power of the "Divine Body." Everything else was indecipherable.

First, let's wash up.

It's the initial step in not becoming a brother who is despised by his lovely sisters.

'There are so many toiletries.'

Being an only child, I had never lived in a house with this many women, so I was genuinely taken aback.

I cautiously grabbed some shampoo.

Zap!!

"Ugh!"

What is this, static electricity? It feels a bit more dangerous than that. My entire body is tingling.

As I looked in the mirror, my eyes turned crimson and I began to comprehend the event that had just occurred.

[『Detection·Crimson』Activated]

[Stella's Prohibition Barrier Magic]

[Power – D]

[Duration – C]

[Activation Condition – When that bastard touches my belongings]

… … .

Did she set up a barrier to prevent me from touching her stuff?

I picked up the item next to it, and this time, a more potent electrical magic coursed through my body.

Fzzzt!

"Argh!"

It hurt quite a bit.

Perhaps I should just give up on washing and leave….

"Brother. What's wrong?"

Then, I heard Serena's gentle voice from outside.

I felt I could trust Serena.

"Do you know where my toiletries are?"

"Didn't you say you don't use those?"

…What?

In a house where two sisters live, they only wash with water…?

"…I've decided to wash properly starting today."

A moment of silence.

Serena spoke from the other side of the door.

"You can use mine. The one on the right is safe."

Seeing that Serena considers it safe, it seems that her brother (the previous protagonist) and Stella have had more than one or two significant fights over this issue.

Was not washing some sort of personal battle for him?

It's disgustingly filthy….

As I recalled the dirt-stained white T-shirt, I applied more force to my fingertips than usual and scrubbed vigorously.

[58 seconds until 『Lucky Pervert』]

[Touch Serena's breast]

…What is this now?

The mysterious power, Lucky Pervert, was activated out of nowhere.

Touch my sister's breast? Are they insane?

Since I didn't think of Serena as my own sister, I could have considered her a romantic interest if we didn't share the same blood.

But to suddenly touch her breasts? That's absurd.

I decided to just ignore it.

After wiping myself dry and opening the door to the changing room, that's when I realized.

Serena was still there, waiting for me.

"Serena? Why are you still…"

"Huh? Oh, I thought there might be some laundry…"

She was holding the t-shirt I had carelessly taken off and tossed aside.

"I'll do it."

I wanted to tell her not to touch something so dirty with her beautiful hands.

Before any cheesy lines could escape my lips, my body moved on its own.

And then…

"Kyaa…!"

My feet slipped.

"Ah…!!"

As I slowly fell onto the soft, dark-haired body of my younger sister…

I recalled what "Lucky Skebe" was.

A cringe-worthy trope that often appeared in old romantic comedies. Falling over and ending up entangled with a female character in an awkward yet intimate position, resulting in an embarrassing yet enjoyable experience.

In reality, it would undoubtedly be a crime.

It was impossible for a girl to blush at a sudden touch and develop a fondness for it…

"No!"

The moment I engaged all of my body's autonomic nerves and tensed up, trying not to cause any harm.

"Wait a minute…"

What if she falls backward and gets seriously hurt?

I wrapped one arm around the back of Serena's head to protect her, and with the other hand, I inadvertently grasped Serena's ample breast.

Squeeze…!!

"…"

"…"

If you squeeze twice… Indecent behavior that can't be overlooked…!

I immediately let go and stood up.

"I'm sorry."

"…Uh, um, the floor is slippery, we should be careful. Oppa…"

When did this clichéd scene become a thing? Oh, goddess of the night.

Having unexpectedly committed such an intimate act towards my sister, I felt lightheaded with guilt beyond what I had imagined.

Admittedly, for a moment, I was happy with the touch of her explosively soft, natural breasts that exceeded my imagination.

But at this stage…

My rational mind was loudly protesting against giving in to my desires with the girl who was about to become my new family member.

'It could develop into something like that later. But not now.'

I helped Serena to her feet.

"Are you okay? Are you hurt anywhere?"

"…Brother… Something's changed."

"…"

Technically speaking, she was a different person.

Even though Serena had experienced such an ordeal, she didn't seem to hate me.

I could see the unhidden curiosity in her shimmering purple eyes.

[『Lucky Skebe』activated]

[Slipping and grabbing sister Serena's breasts with both hands]

?? Damn, doesn't this have an internal cooldown?

"Wait a moment."

The situation was difficult in many ways.

My mind and cock were simple; just recalling the sensation of Serena's breasts was enough to cause a steady erection, ready to break through my underwear.

If this is a problem, then it is a problem. If 'Lucky Skebe' activates one more time in this state, I'll be a helpless sex offender.

Serena's gentle nature would surely reach its breaking point if her brother were to fondle her breasts with an animalistic erection, and I would begin a new life in prison.

That simply cannot happen!

Is there no ON/OFF function? I spun around and fiddled with the Lucky Skebe.

"Brother? Why the status window?"

"That's… Uh."

Done. Lucky Skebe's font has turned red.

Does that mean… it's deactivated?

[Reality manipulation limit lifted]

["Lucky Skebe" activated!]

[10 seconds until impregnation sex fully inside Serena's wet vagina]

…What?

This time, I truly experienced a mental freeze.

"Leave this to me."

Serena smiles as she takes the clothes I was wearing.

"You might be late. Hurry up, change, and come down. Let's eat together."

10 seconds.

Such a brief time to consider anything.

The phrase beneath the Lucky Skebe is not a 『command』 directed at me,

I realized then that it was reciting 『an inevitable situation』.

I had but a single thought.

I must physically remove myself from this situation. I need to distance myself from Serena!! Just as I was about to make a run for it, I slipped again.

"Ah."

Everything was going according to Lucky Skebe's plan. It wasn't even a place where one would typically fall, yet it seemed as if I was fated to tumble backward.

"Oppa! Are you okay?"

Fearing that a 'ridiculous situation' might actually occur if I reflexively grasped Serena, I gritted my teeth and just struck the back of my head.

"Ugh! I-I'm, fine."

"You just said 'ugh'…"

Having hit my head with a 'bang,' it was understandable. I was grateful there was no blood…

"Really, there's no helping it… I told you to be cautious since it's slippery."

Ten seconds… had passed. Thankfully, it seems the user must not harbor feelings of rejection. Regardless, sex? That's absurd. Reality manipulation? Nonsense.

"I'll help you up, Oppa… Ah!"

As Serena reached out to help me up, she suddenly slipped as well. If things continue like this, it's no wonder people would say it's utterly contrived.

But, knowing all the causes and consequences, I couldn't help but feel a chill deep within my heart.

It was my fault that Serena had fallen at such an awkward moment,

and it just so happened that my erect cock had slipped out of my underwear beneath her.

It was an inescapable fate.

…!

"Ah…!!"

With a squelch…

Serena must have been wearing panties,

Yet my cock was firmly inserted into her body.

Sliding in, smoothly, and sinking deep…

[I fortuitously took Serena's virginity♡]

What is this king-receiving system message?

"Ah… What…?"

Serena couldn't comprehend the situation and remained frozen.

I was in a similar state.

This couldn't possibly make sense… It didn't make sense… "Lucky Skeve" had manipulated the situation.

There was no end to figuring out where and how the manipulation had occurred.

First of all, a vagina isn't wide enough for an accidentally erect cock to slip in when one falls over.

Even so, Serena was entirely unprepared for sex; there had been no caresses, and there was no way she could have been wet.

Even if it was a wet, well-prepared pussy…

It was impossible to accidentally fall and insert it.

Skipping all those 'details',

Serena and I had sex.

For reasons unknown, my hard, erect cock was lodged deep within Serena's soaked pussy.

All at once, bearing her weight as well.

It could be said that thanks to "Lucky Skebe," she experienced such intense penetration without getting hurt.

In reality… it would have been a dire situation.

My rigid erection entered her delicate, sensitive depths without causing injury, instead penetrating the soft, welcoming folds of her pussy in a single thrust.

I was now groaning from an unbearable sense of pleasure.

"Ugh…"

Could it be… Serena too?

In this contrived, almost horrifying scene of lost virginity, how would she react?

Serena, disarmed and leaning back, slightly raised her purple eyes, flinching in response.

"Ah…? Ah…? Uh…"

…It doesn't seem like she's in pain. Rather, she appears to be… happy, ecstatic even.

As my cock twitches, Serena's thighs tense up as well. The stillness, surprisingly beneficial, allows my member, now more erect than ever before, to align perfectly with Serena's welcoming pussy, joining us tightly together.

"Serena, I…"

What should I say? Sorry? Are you okay? My mind is slow, unaccustomed to this new experience. The only thing I can do right now is resist the urge to move my hips.

"…I'll get up…"

Serena understands the situation and places her hand on my abdomen.

"Mm… Mm-hm… Uh…"

Serena's hips rise. Her snug, clinging pussy slides up along my cock, now so sensitive it can seemingly detect the subtlest shifts in the air's currents.

"Huh, hah…♡"

Serena lets out a gasp, her eyes glazed over. This is an overwhelming sensation for me, an inexperienced novice. My heart races like mad. This is the intimacy of a woman's pussy.

The area near the entrance is especially tight, as if refusing to let go… gripping and entwining us together.

Serena's vagina was already overflowing with wetness, as if it had been in heat even before penetration.

"It'll happen… so…"

*Thump*♡

Feeling helpless, Serena sank down.

As if by a cruel twist of fate, she slipped again.

"Uh… Uhm…?!"

The heat from Serena's panting, aroused vagina reached her lower belly.

Even for me, who was experiencing sex with a woman for the first time, it was quickly apparent that her excited state was unusual.

"Oppa, my waist… I don't have any strength…"

Serena, unsure of what to do, started to lift and lower her hips gently,

beginning to display a teasing motion with her waist, close to sex and penetration.

"Stop… please…"

How am I supposed to endure this right now… !

"Ah… Ahh… Hah… Oppa…"

Serena, with a completely melted expression, moved her body in a way that made it unclear if she was trying to engage in sex or to pull away.

Is it because of the "Lucky Skebe"…?

Creampie, until pregnancy sex… It can't possibly continue like this, right…?

"Don't move! Serena."

I pulled Serena close and held her in my arms.

"Yes… yes, yes…"

Serena grew increasingly excited, trembling as she reached her climax in my arms. I had picked her up to keep her from shaking her hips, but her vagina clenched around my manhood unexpectedly tight. Unable to move, Serena asked,

"Am I being… raped by my brother…?"

How could she ask that with such a sweet voice? I had let my guard down for a moment. This world was "Yagem"…

I should have taken the world of "My Ero Academy" more seriously.

[_"Detection/Red"_ activated]

I could see it. The threads of Lucky Skeve. A red skull controlled Serena by connecting red threads to her head, arms, and legs. Those threads were also connected to my body.

Holding my sister with one arm, I swung my free arm violently and tore the threads.

"Begone!"

With the boldness of someone driving away a sea monster through sheer force of will, I protected my sister… from my own erection!

"…"

Serena, held in my embrace and sitting face-to-face, trembled with happiness.

'What should I do about the aftermath?'

It seems I'm rather in a predicament.