141. The AV Scientist's Milking: "Damn, It's Huge Once It Gets Hard."
After knocking Seojin out, Na Chae-myeong prepared for semen extraction. But when she saw his swollen cock, she was a little surprised.
She was the type who wouldn't bat an eye at most things, but his dick size was genuinely astonishing.
"Those balls are huge and packed tight—bet he pumps out a ton of cum. He's dating Hasun, right? But judging by how stiff and unused it feels, they probably aren't fucking much."
Chae-myeong knew a fair bit about Hasun's perverted tendencies. With a cock like this, she'd expect them to go at it like animals every day. Yet the erection and rigidity didn't scream "well-fucked." It puzzled her.
"I'll look into that later. First, let's get what I need."
Beep. Rrrrrrr.
She activated the modified Tenga, and it began vibrating—a tool designed to milk a man's semen.
"Five minutes should do it."
It was easier with him passed out, so she cranked the output and slathered the inside with lube.
"Alright, hand over that cum."
Squelch squelch squelch squelch squelch.
"Ngh?!"
As she shoved the Tenga onto his cock, his body twitched slightly with a small groan. Just a physiological response to the sudden pleasure, so Chae-myeong ignored it and kept going...
"...This I didn't expect."
The Tenga she'd prepared only covered half his shaft as it moved.
This is gonna take longer.
Irritated that her custom-sized Tenga didn't fit his unexpectedly massive cock, she frowned. It wasn't the extra time or risk of him waking up that bothered her.
It was that her prediction—her preparation—had been wrong. With her genius-level brain, everything always stayed within her calculated parameters. No one interrupted her meals, sleep, experiments, or chats without her anticipating it.
This Tenga was 1.5 times larger than standard—overkill for any guy in this world. So a cock too big for it pissed her off.
"Tch. Hasun picks a guy like this? Figures it'd suit her tastes."
Still, it was just a minor deviation. Milking would take longer, but that was it.
"Come on, cum already."
She gripped the Tenga, waiting for him to blow his load on his own, oblivious to what was coming. A faint smile played on her lips, lost in thoughts of her experiment.
................
Squelch squelch squelch squelch squelch.
What the hell? This gross feeling...?
How long had it been since I inhaled that weird drug smell and blacked out right there? My mind slowly cleared, but my hands and feet wouldn't budge. And weirder still—a faint pleasure pulsing from my dick.
"Ugh?!"
"Oh~ You're awake?"
"You—what the fuck are you—ngh!!"
I opened my eyes to Professor Na Chae-myeong's face... and the Tenga in her hand.
Squelch squelch squelch squelch.
"What kind of insane shit is this?!"
"Nothing major. I needed your cum instead of the aphrodisiac, so I'm just extracting it. Hang in there a bit longer."
"That makes even less sense?!"
Knocking me out cold, tying me up, and jacking me off with a toy? Sure, I'd asked for the aphrodisiac first, so it wasn't that weird... but this crossed the line.
"Come on, cum quick."
She focused solely on milking my semen, eyes locked on my dick, no sexual intent—just clinical detachment.
"It's been ten minutes already. How about busting now?"
"You think I can just do that on command?!"
I'd planned to play nice earlier, but with her pulling this crap, all courtesy vanished.
"No way I'm cumming from this weak-ass stimulation!"
"Hmm... It's twice as intense as a regular onahole, but that's not enough?"
I was used to pounding my bitches raw, so my pleasure threshold had long surpassed normal. A standard strong Tenga wouldn't cut it.
Unaware, Professor Chae-myeong kept at it, but with no signs of me cumming, she sounded annoyed.
"At this rate, it'll take all day."
"I'll handle it myself—just untie me!"
"Rejected. You might run."
I didn't mind giving her cum, but she clearly didn't trust me.
"Fine. It's all for science anyway."
Tap tap tap.
She fiddled with the Tenga, unlocking a blocked section to turn it into a full tunnel sleeve.
Squeeze.
"Ngh!"
She pushed it down, enveloping my shaft completely as it vibrated.
"Some guys can't cum from onahole stim alone, and this one's a bit small for your size anyway. Gonna take longer."
Deeming more delay inefficient, she smirked, slipping on a smooth glove.
"I'll make you cum myself. Special service."
"What?"
She grabbed my glans with her hand and started stroking.
Slap slap slap slap.
"Nghh!!"
Why's she so good at this?!
Just glans play, but her technique was shockingly skilled. The shaft got constant Tenga vibes, and she covered the rest with a handjob.
She looked like she'd never touched a guy, yet here she was, jerking my tip like a pro. I was stunned.
"Four years ago, I watched a handjob tutorial once, thinking it might come in handy."
Mastering it from one video? No wonder they called her a genius.
"Grrk!"
"Oh~ Way more intense with my hand. Gotta note that down later."
Her clinical, observational vibe pissed me off even more. I'd planned to just grab the aphrodisiac and tools, but this humiliation lit a fire.
Just wait till I'm free...
I switched to revenge mode, biding my time.
......................
"Any second now."
Five minutes into the handjob, I felt it twitch and swell.
It took longer than expected, but that meant thicker, more cum—perfect for her experiment, Chae-myeong thought.
First time doing this for real, but it's not bad.
Handjob from a video memory, executed flawlessly thanks to her genius brain. She positioned a beaker as I neared the edge.
"Grrk!!"
Splurt splurt splurt splurt splurt.
"Ooh, that's an impressive volume."
The cum jetted out forcefully, filling the beaker fast.
Size and output already off the charts? This guy's prime test subject material.
She'd planned 4-5 extractions for enough semen, but one load overflowed.
"Beaker's getting heavy. Hasun sure picks 'em well."
"Haa... haa... Untie me."
"No rush."
Other experiments could wait—she wanted to study him first. Her mind raced with plans. Human testing had issues, but she'd already developed mind-adjustment drugs. No problem.
"First, this."
She sealed the semen and stowed it.
"Aphrodisiac as promised... and this mind-control potion too..."
Muttering to herself, she lined up her tools. Prep done, she returned.
"Sorry for the wait. Breathe this in and rest."
"What's that one—ugh..."
The same knockout drug from before—effective twice before tolerance kicked in.
"Mind potion to kill hostility, then aphrodisiac... Huh?"
Confirming him out, she untied him. Planned to hypnotize him into eager test subject next...
But he moved first.
"You really went and did this, huh."
"Uh... L-let's talk this out calm—"
She reached for the potion to spritz his face. One whiff, and hypnosis engaged.
Spray.
"Ah... W-wait, let's talk..."
But he'd anticipated it—her other hand grabbed too. She was pinned.
Gotta break free quick.
She'd let her guard down, assuming Hasun's boyfriend wouldn't get violent, and that he was still out.
That tiny slip was snowballing into a life-changer.
"Coulda just asked nicely... instead of tying me up and jerking me off?"
"L-let's discuss first..."
No escape physically—she was outmatched.
"Fuck up, pay the price."
"Money? I'll pay anything—just let go and—"
Free hands meant potion to the face. Plans derailed, but she banked on no violence from Hasun's friend.
Spray... hiss.
"Eh? W-what the hell?!"
Then he did the unexpected. As shock boiled over, she collapsed right there.