Pussy Inspection
“Alright, from now on we’re going to do a proper examination. Class president, would you come up and help with the checks?”
At the school nurse’s words, every pair of eyes in the classroom swung toward me.
I stepped forward as if I’d been waiting for exactly this moment.
Parting the sea of girls, I slipped behind the curtain. The school nurse looked faintly surprised.
“Oh my, Sihyuk—you’re the class president?”
“Yes. That’s me.”
There was no way I was going to miss a legal opportunity to freely handle the bodies of more than twenty beautiful girls.
“A boy as class president… first time I’ve seen that. Most guys hate touching girls’ bodies.”
She looked me over with open interest and explained my role. Then she added that, as the only male, I would be examined last—after every girl had finished—so none of them would see me naked.
“Alright, first person in line, come on in.”
The curtain parted and Chaerin stepped through, already completely naked.
Flawless white skin and the clear, sensual curves of her body. I had touched every inch of her just yesterday, yet under the bright clinical lights she looked different—more vivid, more exposed.
Chaerin seemed conscious of my stare; a faint flush colored her cheeks.

Then, following the nurse’s instructions, she stood at perfect attention.
The real measurements began.
“Mm, skin quality is top-tier. Excellent elasticity, even tone…”
The nurse pinched the skin of Chaerin’s forearm with a specialized device, murmuring as she checked the readings. I stood quietly beside her, watching every inch of Chaerin’s body.
Next came the breast evaluation. The nurse brought over a set of molds.
“Breast volume is F-cup. Shape is excellent as well.”
The mold sealed snugly around Chaerin’s full breasts. The monitor clearly displayed 75F.
Then it was time for nipples and areolas. The nurse picked up a vernier caliper and carefully clamped Chaerin’s nipple between the jaws.
“Areola diameter and nipple projection length are in perfect proportion.”
I swallowed hard. The precision down to the millimeter was impressive, yet knowing the subject was my twin sister left me with a strange, electric feeling.
Next the nurse produced a nipple color chart—dozens of subtle pinks and browns arranged like a paint swatch. She held it against Chaerin’s areola and nipple, matching the shade.
“Color is a soft pale pink. Nothing to criticize.”
At those words Chaerin’s nipples stiffened a little more. Being evaluated like this in front of her twin brother seemed to embarrass and arouse her at the same time. The nurse didn’t miss it and teased her mercilessly.
“Oh my, already getting excited?”
“N-no!”
Chaerin denied it in a flustered rush, but her proudly erect nipples told the truth.
The nurse then ordered her to spread her legs and lie on the nearby bed. External genital evaluation.
“Come on, open a little wider.”
Hesitantly, Chaerin parted her thighs. Between them her pretty pussy came into full view.
The nurse adjusted the light, studying shape and color.
“Labia minora are symmetrical, color is lovely. Clitoral exposure is just right.”
She had Chaerin roll over, gently spread her buttocks, and inspected her anus.
“Anal wrinkle density and color both good. Almost no pigmentation.”
The nurse handed Chaerin a small bottle.
“After every shower, apply this to your nipples, pussy, and anus. That way you’ll keep this pretty color.”
So that was why the girls in this world stayed so free of darkening and stayed so beautiful.
Watching the intimate scene, I found myself thinking that every other girl here probably had equally pretty pussies.
Oral structure and flexibility tests followed. Every part of Chaerin’s body received a top-tier rating. Only one stage remained.
“Now we’ll begin the arousal-induction procedure. Sihyuk, come over here and help.”
Finally, my turn.
“First we’re going to measure time to arousal. The moment you start stimulating her, I’ll clock how many seconds it takes her to reach an aroused state.”
She handed me a long thimble-like device. “Vaginal photoplethysmograph. Slip it on your finger and touch her pussy—it’ll read arousal level and a bunch of other metrics.”
I fitted the strange instrument over my index finger and approached Chaerin, who lay with her legs slightly parted.
“S-Sihyuk…”
Her voice was tight with nerves. The look in her eyes said she had never imagined her twin brother would be the one fingering her pussy.
The nurse watched the two of us with open fascination. She had been checking items off on a sheet for Chaerin; now she smiled and made a request.
“Start by playing with her nipples, would you? Some girls can’t feel anything there.”
I stepped in front of Chaerin and cupped her F-cup breasts in both hands. Soft, heavy weight filled my palms completely. Unable to resist, I rolled her stiff nipples under my thumbs.
“Hnn…!”
Her body trembled delicately. My own heart was pounding just as hard with excitement.
“Nipples are fine. Now go ahead and touch her pussy.”
For the first time in my life I was about to touch a girl’s most intimate place. I’d watched hundreds of porn videos, but the real thing…?
Swallowing dryly, I slowly lowered the sensor-tipped finger.
Looking down, I saw Chaerin’s pussy: plump outer lips and, between them, shy pink inner flesh that made my cock go fully hard.
With trembling fingers I carefully parted her labia. Glossy membrane and a clear liquid came into view.
So this is love juice?
As if entranced, I gently rubbed the entrance with my fingertip. Through the sensor I felt slick, hot, sticky wetness—far more vivid than anything I had imagined. The sticky fluid clinging to my finger glittered under the lights.
Then I slowly pushed my index finger into the narrow-looking hole.
—Schlick…
Already thoroughly aroused, Chaerin’s pussy swallowed my finger with almost no resistance.
“Ah… nn…”
A short moan escaped her. At the same instant a soft electronic beep sounded and the numbers on the monitor climbed rapidly.
“Whoa…”
Just inserting a finger made me gasp in wonder. I could feel my cock already soaked with pre-cum. How incredible would it feel to put the real thing inside her?
“My goodness, she’s already near maximum the second we start. I can’t even get a proper time-to-arousal reading.”
The nurse sounded astonished.
“At this rate we can’t finish the test properly. Chaerin will need a re-examination later.”
Apparently her pussy was either too sensitive or she had simply become aroused far too quickly.
Thinking the genital exam was over, I reluctantly withdrew my finger—only to be relieved when the next item remained.
“Let’s evaluate love-juice quality first. Volume, viscosity, acidity, scent. Put your finger back in, please.”
The sensor-clad finger touched her tightly closed entrance and Chaerin held her breath. The moment just two joints slipped inside, she twisted her hips and panted hotly.
“Hah… hnn… ah…”
I kept going, curling and flexing my finger. Teasing the soft inner walls made fresh juices well up in a rush. The device analyzed the fluid in real time and displayed the data on the monitor.
I heard the nurse’s admiring murmur, but I was already beyond caring. I crooked my finger deeper.
—Squish!
“Ah—there… hah…!”
Chaerin’s hips jerked. The machine continued collecting data nonstop, but I no longer had attention to spare for it.
“Next we’ll check maximum vaginal pressure, contraction pattern, internal temperature change, and how much her G-spot protrudes. Just keep moving your finger the way you are.”
Following the nurse’s instructions, I began exploring her interior in earnest.
When I curled my finger and gently scraped the front wall, a full-throated cry burst from Chaerin.
“Y-yah… I’m…!”
My fingertip found a soft, swollen patch—her G-spot. I stimulated it relentlessly. Her pussy clenched hard around my finger in violent spasms.
“W-wait… I-I’m gonna come…!”
She begged, but I didn’t stop. In less than a minute her whole body went rigid.
“Stop—stop, st—! Hnn, ah, I’m coming, I’m really—!”
“It’s fine, Sihyuk. Keep going.”
“You heard her, Chaerin. You’re allowed to come.”
“Idiot… idiot… hyaaaaah!”
With a wet spurt, a massive amount of love juice sprayed out. Chaerin’s legs shook like leaves in a storm.
“Orgasm threshold is normal. Eleven climax contractions. Love-juice volume is abundant… everything checks out.”
The nurse calmly finished her evaluation of the orgasmic response.
I had wondered if Chaerin was simply a quick-shot, but according to the nurse this was ordinary.
Still gasping and half out of her mind, Chaerin rested a moment, then staggered out from behind the curtain.
“Next—Cha Ayeong.”
Vice president Cha Ayeong entered next. Perfect posture, expressionless face. She showed not the slightest hesitation.
Her body was meticulously maintained—not an ounce of excess fat. Where Chaerin had been soft and voluptuous, Ayeong was voluptuous and sleek. Her breasts were a size larger than Chaerin’s; the narrow waist flared into an ass so full it looked ready to burst.
Watching her cool demeanor, I thought, Is she even going to feel anything from my touch?
The external aesthetic measurements finished in a flash. As expected, her body also scored top-tier, just like Chaerin’s.
Now came the arousal-induction phase. I fitted a fresh sensor onto my finger and approached her.
“Beginning now.”
I deliberately smiled a little as I spoke. Until now most girls had been flustered simply because I was male, but Cha Ayeong remained completely blank-faced.
I lightly stroked her nipples—no issues there.
Without further comment I brought the sensor-tipped finger to her pussy. Unlike Chaerin’s, it was still soft and dry.
—Schlick
That was the moment.
“Hnn?!”
The instant my finger entered her, a moan tore from the ice-cold Ayeong’s lips.
Her body convulsed as if electrocuted, and before my finger was even fully inside she was gushing love juice and climaxing hard.