It was back then.
When my groin was so itchy that I kept squirming. When I felt that sensation of relief when rubbing against something, only for the urge to return again.
The Professor, who had been scratching my back, heard what I said and took my hand, leading me to the bathroom.
I was afraid. Whether I should know this sensation. Whether I was allowed to feel this way on my own.
Despite my hesitation, wanting to relieve this itchiness first, I squeezed my eyes shut and followed the Professor. Before entering the bathroom, the Professor stood behind me and pulled down the zipper of my cat pajamas.
"Let's take this off first. We can't do this while you're wearing it."
Under the Professor's touch, my pajamas slipped right off. Whether it was because of the material, or because I didn't need to exert any effort with the Professor's help, I was half-naked in an instant.
Being naked when I wasn't even going to wash made me feel an inexplicable resistance. I had no way of knowing why I felt so embarrassed when I was going into the bathroom anyway. I just instinctively felt shy.
I physically experienced the vast difference between undressing to bathe and undressing when not intending to bathe.
"Uuu..."
What was going to happen next?
How would the Professor relieve my itchiness? Was there something only women knew? Was there something I still didn't understand?
Even though I currently had a woman's body, there were too many differences between me and other human women.
I didn't use the bathroom, didn't have the periodic magical days, and consequently, things that other women naturally learned over time weren't obvious to me.
Still, since the Professor knew better, I wanted to trust her, but being half-naked made my body instinctively curl up, making it difficult to move.
The Professor's hand pushed against my back. My hesitant steps entered the bathroom. The Professor placed her hand on my shoulder and led me in front of the toilet.
After closing the cover to make it like a chair, she sat me down. With my arms crossed to cover my chest, I stared blankly at the Professor standing in front of me.
"When it starts itching here, you need to properly take care of it. If you leave it, it'll keep itching until you can't bear it anymore, you know?"
"...I-is that so."
The Professor explained it to me.
Since I knew nothing, all I could do was nod along, thinking that if the Professor said so, it must be true. I sat awkwardly with my legs closed, but the Professor took hold of my knees and slowly spread my legs.
It felt strange to have my legs spread by the Professor's strong hands.
"This is where it itches, right?"
The Professor's hand pointed to my groin.
It wasn't the fine fur on my pajamas causing the itch. It wasn't my thighs or calves—this part was unbearably itchy.
I didn't know what to call it. Just feeling embarrassed, I kept nodding.
Suppressing the feeling that my face might explode, I bit down hard on my lower lip. When the Professor's finger touched me, I felt even itchier.
I narrowed my brows and twisted my body. I tried to close my legs as they felt like they were going to twist, but the Professor was already positioned between them, preventing my thighs from meeting.
"How does it feel?"
"Uuh, ah..."
Letting out a small moan, I lowered my gaze. With trembling eyes, I looked between my legs. The Professor's hand poked through my underwear with her finger.
Each poke sent a tingling sensation through me, making me feel strange.
It wasn't just pressing against my skin but felt like it was digging into somewhere, making me instinctively narrow my brows. My body moved backward as if trying to escape the sensation.
I couldn't tell if it was itchy or numb, and it felt weird. It felt like my head was tingling too. Trying to calm my trembling body, I stopped the Professor.
"C-can't I scratch it myself...?"
"Does Urr want to try?"
The Professor nodded readily at my words.
I moved my hesitant hand. My hand that had been hovering in the air. I squeezed my eyes shut and placed it between my legs. I curled my fingers like hooks and scratched vigorously, just like when the Professor scratched my back.
But scratching through the fabric seemed to have a negative effect, creating only a teasing itch.
Instinctively feeling that this was serious, I put my hand inside my underwear to extinguish the urgent fire. I scratched with my eyes tightly closed, but something felt strange.
The more I dug into the itchy part, the stranger I felt, and I didn't feel any relief.
"Ugh, uugh...!"
I frowned involuntarily from the frustration. The Professor watched helplessly before carefully grabbing my wrist.
"If you scratch recklessly like that, you'll damage your skin."
"...B-but..."
As I narrowed my brows and moaned, the Professor carefully removed my hand. Then she gently removed my underwear and looked at the flesh inside from a low position.
"Can you see here? This is where babies are born."
"I-is that so..."
Though I already knew this, I nodded at the Professor's kind explanation.
"There's a hole here. This is the urethra, and this is probably where Urr is feeling itchy?"
"Hiiik?!"
The Professor's finger poked between the folds of flesh. My body trembled at the tingling sensation. My waist and legs straightened up.
I moaned with wide eyes. Forcibly lowering my gaze that had been lingering in the air, I only faced the fact that the finger from before had entered inside. That was all.
Can I feel such a sensation with just one finger? Wait a minute. My body is too weak. No matter what, feeling like this from something like this is strange, isn't it?
Bewilderment swirled inside me. Thinking "wait a minute" to myself, I reached out to the Professor, but she was digging inside with her finger. The delicate flesh screamed at the new stimulation.
My body twisted. It felt like my waist was contorting. Moaning "uugh," I fell backward. Leaning my shoulders against the wall behind the toilet, I looked at my body from below.
At the end, I met the Professor's gaze. My blurred vision tried to focus somehow, but each time, it felt like a strange current was flowing, making it difficult to regain my senses.
"Unng, uuunng."
With my eyes tightly closed, I flailed my arms. Feeling unstable in my posture, I swung my arms intending to grab onto something, but all I could grasp was the wall beside me.
As I barely managed to hold on, the Professor stopped and hugged me.
"Oh my, Urr, you might crack your head like this."
Realizing my unstable posture, the Professor carefully embraced me and placed me on the floor.
"...P-Professor."
I called out to the Professor in a half-sobbing voice. The itchiness in my groin wasn't resolved, and lying on the floor made me feel strange.
While seriously contemplating how often one would lie down on a bathroom floor rather than a living room floor, the Professor tidied my hair and positioned herself again near my legs.
"It's okay, Urr. We can wash again afterward."
That didn't seem to be the problem.
I just felt resistance to having my legs spread in this position. But that resistance was only momentary. Every time the Professor traced the outside with her finger and tried to push inside, my body rolled on the floor.
"Aahn, Pro-fessor."
I pressed my eyelids with my hands. The strange feeling made my face hot too. I pressed my eyes tightly, feeling like my head would explode if I made eye contact with the Professor here.
My waist seemed to bounce up on its own.
My body jerking, my legs stretching out uncontrollably. Amid my constantly jerking body, I heard the Professor's voice filled with admiration.
"Urr's body is sensitive, isn't it...?"
"Aahn, unng...!"
Tears welled up in my eyes as I let out moans that sounded like crying.
"Let's finish quickly and go to sleep."
"Y-yesh... huaang."
The Professor increased her speed, perhaps feeling sorry for my writhing. I bit down hard on my teeth, trying to swallow the strange moans at the sensation of something digging inside.
But the voice escaping through my lips was unbearable, and I let out a cry.
"Aaahn!"
With a squelching sound, my body trembled.
A tingling sensation that rushed all the way to my brain. When I removed my hands and opened my eyes, the air seemed to sparkle. It was like facing a world where stars lived.
I learned for the first time that I could feel such a sensation.
Rather than curiosity, I had only wanted to relieve the itchiness, but now that I knew, I just felt troubled.
I returned to the room in the Professor's arms. After showering twice, I was exhausted. It wasn't that I felt tired and sleepy, but the mental fatigue was unavoidable.
My legs felt wobbly. Half-hanging onto the Professor like a cane, I could only find a comfortable position once I reached the bed.
"Huuu... this is strange."
"Is it? This is how you normally relieve itchiness."
"Can it be done on the floor too?"
Recalling what the Professor had said earlier, I asked cautiously, and the Professor tilted her head before smiling wryly.
"I don't think it's that great, but if Urr wants to do it alone later, you can use your hand like this time, or if you're scared to do it directly, you could do it like this."
At the Professor's words suggesting it was worth considering as an alternative, though not entirely pleasant, I gently closed my eyes.
I couldn't say I liked this, but since it's a human thing and I didn't know about it, I decided to remember it.
"It's strange..."
And I voiced my impression, recalling the sensation I had just experienced.