episode_0218

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Estrus Period

Estrus

Estrus

Mutant Estrus Period

Gumiho Estrus

“……”

Thanks to them, I’ve calmed down a bit, so now please just leave.

After hastily shooing all three of them out, I flopped onto my bed and continued my desperate search.

Praying that the reason my body had become so strange would align perfectly with the sudden suspicion that had crossed my mind.

At the same time, praying desperately that it wouldn’t.

But no matter how much I scoured the internet, I couldn’t find the answers I was looking for.

Of course, that was only natural. I’d encountered plenty of mutants in my life, but I’d never once heard of an estrus period…

Ah, it wasn’t like there were no related stories at all.

There were occasional accounts on online forums from mutants who’d blurted out things like, “I’m in heat, Master… Wanna fuck?” to people they’d just met.

But there was no way those kinds of blatant sexual advances would be of any help to me right now.

What I urgently needed to know was whether I was genuinely experiencing heat… or not.

“Maybe I should ask Yozora… She’s a mutant too…”

No. Absolutely not.

My mind was so foggy that I’d even considered something so ridiculous. I squeezed my eyes shut and shook my head vigorously.

If I brought up something like heat to her, I’d rather just bite off my own tongue.

After insisting for so long that I had no interest in anything lewd, if I suddenly started talking about being in heat, she’d never let me live it down. She’d tease me for years about finally developing an interest.

In the end, my gaze returned to my phone’s screen.

At least here, I could gather information anonymously.

Of course, I’d have to verify the accuracy of that information myself.

“……”

First, it was clear that ordinary mutants didn’t experience anything like an estrus period.

That meant it might be a unique condition exclusive to gumiho.

However, when I’d searched “gumiho estrus period” earlier, nothing useful had come up (just a flood of disgusting sexual harassment). So I tweaked my search terms slightly.

Characteristics of a gumiho.

“Ugh…”

Ridiculously, this too was flooded with sexual harassment.

Discussions about which female gumiho throughout history was the hottest, with male gumiho conspicuously excluded—some of these threads had over 100,000 views.

At least I didn’t see any posts about wanting to “put a leash on them and rape them.” I guess that was something to be grateful for.

Frowning in disgust, I stared at my phone before finally giving up and clicking on the top search result—a Wiki site.

Since anyone could edit a wiki, I couldn’t take everything at face value, but it was still the best place to skim for general information.

“…There’s more here than I expected…”

That said, most of it was irrelevant to me.

I hadn’t opened the wiki to read about how gumiho had “superhuman strength” or “charming and brainwashing abilities” or “magical fox orbs” like some fantasy creature.

What I needed was confirmation on whether gumiho experienced “estrus periods.”

Or, to phrase it less crudely—whether they ever had moments where they felt uncontrollably aroused.

As I scrolled carefully through the article, reaching the very bottom of the page…

“Estrus… or something similar… …Huh?”

Just before the footnotes appeared, under a section labeled “Trivia,” one particular line caught my attention.

[One commonality among all recorded gumiho is that every single one has been caught in the act with a member of the opposite sex at least once.]

Hmm.

That was a fact. Except for me, of course.

It made sense—even the Chinese gumiho hero who’d been active about five years ago had taken an extended break after getting pregnant out of wedlock.

Thankfully, it wasn’t a case of a one-night stand gone wrong—she’d at least been in a committed relationship…

Anyway, this was the first vaguely sexual reference I’d found in a while.

Pfft— I let out a sigh and kept reading, hoping there might be something more useful further down.

[Contrary to their promiscuous and lustful image, two gumiho have actually married after being with only one partner. In other words, six lived promiscuously.]

Not helpful.

Next.

[They are the only mutant species where every confirmed individual is unanimously considered exceptionally beautiful. While there are mutants where most are attractive, none match the gumiho’s ratio.]

…Well. I’ve never really thought of myself that way…

I mean, I don’t think I’m ugly, but beautiful…?

A-Anyway.

Next.

[In a past interview with a YouTuber, Shizuka was jokingly asked why she was so often seen with men. She responded that she didn’t particularly want to be that way, but as a gumiho, she had no choice. 〈Link〉 Whether this was truly due to her nature or simply because she enjoyed sex remains unclear.]

“……”

Shizuka was presumably the sixth recorded gumiho, from Japan.

But instead of focusing on that trivial detail, my eyes locked onto the latter part of the statement.

“She didn’t particularly want to, but as a gumiho, she had no choice.”

“…Ngh…”

Did that mean… gumiho could genuinely experience something like heat?

Even if I had no idea why such an embarrassing condition existed…?

It wasn’t like I was in my fertile period, so what could possibly be triggering this?

If the purpose wasn’t pregnancy, then why did this kind of bodily state even exist?

Irritated, I quickly skimmed the remaining trivia before exhaling sharply and pressing my lips into the pillow.

Not because I’d found more testimonies from other gumiho—but because my body was already growing uncomfortably warm again.

Even though Seo Jin had only just helped me cool down less than 30 minutes ago.

If this were just a fever, I could understand…

But embarrassingly enough…

It was heat.

“…Ugh…”

I still didn’t know the cause, but the solution was painfully obvious.

If I had sex with someone, I’d probably feel better. Just like the other gumiho had.

But that was the one thing I truly… despised.

It wasn’t like I had some logical reason to explain why.

It was just instinctive disgust. Or maybe indifference.

If masturbating had ever felt good, maybe I’d have had at least a little curiosity about sex…

But all it ever did was leave me itchy and sore. I had no interest in wasting time on it.

And the idea of pressing my bare skin against someone else’s? Unhygienic, at best.

“Hah…”

But…

Could I really…

Continue doing spy work…

In this state?

…At the very least…

I needed to deal with it.

“……”

Seo Jin.

The trash who abandoned Yozora.

The trash who pretended nothing had happened in front of others.

I repeated his name in my head a few times before swiping it away like wiping dust from my eyes.

What was I thinking, considering a one-night stand with him?

Earlier, I’d only suspected I might be in heat—but now, I was certain.

There was no way I’d have thoughts like this unless I was in heat.

…Besides, if I really examined my relationship with Seo Jin…

I shouldn’t be thinking about having sex with him to relieve my heat.

I should be subtly helping him and Yozora reconcile…

How could I do that with him?

It wasn’t like I was soberly planning to cheat.

“…So annoying.”

I didn’t want to sleep with a stranger.

I especially didn’t want to sleep with someone I knew.

And above all, I absolutely, under no circumstances, wanted to sleep with Seo Jin.

…Ah, I’d almost forgotten—doing it with the vice student council president was equally out of the question.

As for women? That was such a lame joke I couldn’t even laugh.

Which left only one option…

Handling it myself…

“…Tch…”

I let out a quiet curse and buried my face into the pillow.

I’d already been in a similar position since I started fiddling with my phone—just a slight adjustment and I’d be set.

Then, hesitantly, I slid my hand down toward my lower abdomen.

I’d just close my eyes and get it over with.

Based on past experience, it’d be excruciating—but I’d endure it.

People said you “go over the edge,” right? Once I reached that peak, this throbbing ache would probably ease up.

Trying something was better than lying here helplessly.

…Maybe this time…

Because I’m in heat…

It’ll feel…

Good.

“……”

The loose T-shirt, soaked in sweat earlier, was now slowly drying.

I pinched the hem between my fingers and pulled it up past my navel, then slipped my hand beneath my stomach where it pressed against the bed, wriggling my fingers upward.

Between the pillow and the mattress.

My chest, trapped in that uneven gap, brushed against my fingertips.

Maybe because I’d been sweating earlier. It didn’t feel pleasant at all.

Who in their right mind would enjoy the sticky, clammy sensation of sweat-cooled skin? Only a pervert.

I’d much prefer the smoothness of freshly washed skin, something I could knead and grope to my heart’s content…

…No. Enough of these perverted thoughts.

I must really be out of my mind from heat. Why am I even thinking like this?

I swallowed hard, briefly imagining what an orgasm might feel like.

Blaming my state on heat—a convenient excuse—I sighed into the pillow.

Then…

…Slowly…

I began teasing my nipple with my fingertips.

“…Ngh.”

As expected, it didn’t feel good.

The ticklish sensation was more intense than before, sure—but if someone asked if it felt good enough to keep going… Well. I’d tilt my head and say no.

Weird was the most accurate way to describe it.

Why did people even touch themselves here?

How different were normal people from me that they could moan and climax just from having their nipples played with for a while?

Curious, I tried stimulating myself more vigorously—but gained no new insights.

…Which left only one place to focus on.

Lower.

“Hah… Hah…”

Even though I couldn’t recall a single pleasurable moment, my breathing had already grown ragged.

Probably because lying face-down made it harder to breathe. I swallowed the saliva pooling in my mouth and carefully slid my hand beneath the tight waistband of my pants.

Unlike my chest, the heat here was undeniable.

Maybe because the area was larger, or because the fabric trapped body heat…

But still, it felt unnaturally hot.

Lost in thought, I moved my fingers carelessly despite recognizing the warning signs.

Down past my lower abdomen, then lightly rubbing near my clit—the same way I’d done before whenever curiosity about masturbation struck.

It had always just hurt before…

…….

….

“……? …? …. ……?”

…Just hurt.

But this time, before the pain…

A sensation I’d never felt before…

Started playing mercilessly with my body.

“Ngh—?! H-Hah…?!”

Like an electric current rampaging through me.

My thighs, which would’ve normally stayed still, trembled and clenched uncontrollably.

My mind screamed belatedly.

This is wrong.

Stop.

Pull your hand away now.

If you keep going, your mind will burn to ashes.

No—it already has.

You’ll become an idiot who only lives to touch your clit.

At the same time, I felt something tighten around my hand.

Like a hand flinching from a scorching flame…

My soft thighs clamped down, trapping my fingers in place.

“Haah…? Hah…?”

…Was this what survival instinct felt like?

I yanked my hand free from my trembling thighs, rolled onto my back, and stared blankly at the fingers that had been pressing against my clit.

Nothing special.

Aside from the red marks left by my thighs, they looked the same as always.

No slick fluids dripping like in porn—just a faint, damp sheen that was probably sweat.

“……”

So if I kept touching myself until my hand reached that state…

Did that mean…

It felt…

Unbearably good?

“……”

Gulp, gulp. After swallowing hard, I lowered my hand back to my lower abdomen.

This time, instead of slipping it beneath my clothes, I hooked my thumbs under my waistband and yanked both my pants and panties down in one motion, tossing them aside.

The cool air of the bedroom brushed against my legs…

And against that shameful slit.

“H-Hng…!”

With my pulse pounding in my ears, I dragged my fingers downward.

…Don’t touch the clit.

If my fingers brushed it again, I might die.

No—I would die. Definitely.

Even just pressing around it made my brain buzz with electricity.

If I actually rubbed it…

No.

So for now, I’d focus on other areas to soothe the heat.

…Like the tight entrance…

Between those folds.

“Ngh, ah…? …Ugh…”

A single finger looked almost too thick for that narrow opening.

But as I feathered my fingertips over it, embarrassing little moans slipped out.

Were they from pleasure? I wasn’t sure.

My lungs just kept forcing out air every time my fingers grazed that spot.

It took me another 10 seconds to realize most people would call those sounds “moans.”

“Haah…! Hah…?! Haa… Hah…?”

My fingers, which had only been lightly skimming the surface…

Finally pressed inside for the first time…

But the moment something touched my fingertip—

Terrified, and overwhelmingly aroused—

I yanked my hand back, deciding this was still too much.

Exactly 10 more seconds had passed.

“…… …”

My breathing had grown ragged in an instant.

Trying to steady it, I stared at my slightly dampened fingers.

…I’m in trouble.

Only then did I realize—

The heat in my body had almost completely faded.