Jake slid deeper, the crystals creating a unique, almost vibrating sensation against his throbbing cock as her silky walls fluttered around him.
She was incredibly wet, but the texture was different — sleek, elegant, and almost dangerously addictive.
His cock came out even shinier than before, now coated in her juices and lightly sparkling where the crystals had brushed against him.
Halloway made another note, muttering approvingly, “Excellent precision and unique tactile feedback.
Moon-Glow offers a premium experience for one’s cock.”
His brain had short-circuited in the best (and worst) way possible.
First Fizzle—the human avalanche who crushed him like a love-struck pancake.
Then Moon-Glow—the glowing magical-girl menace whose vajayjay was basically an erotic science experiment designed to make men question their life choices
And now, the final variable in this madness: Yui.
One of his new girlfriend’s best friends.
Jake’s cock was now painfully hard, veins standing out, glistening with the mixed juices of the first two girls.
When he pressed against Yui’s tight, perfectly shaved pussy, it felt electric.
She was incredibly tight—almost virginally snug—but soaking wet.
Her smooth, hairless lips parted around his cockhead as he slid in, her slick, silky walls fluttering and squeezing around him with wet, rhythmic pulses.
The wetness was obscene—warm, slippery, and so abundant it dripped down his balls as he pushed deeper.
Yui let out a tiny, pathetic whimper, her frame shivering like a leaf, but her voice stayed that sweet, sugary, and completely twisted kind of innocent.
“Ahhn~ Jake… you’re so hard already… my pussy feels good, doesn’t it?” She arched back, grinding her hips to drag him deeper.
“Mayuko would be so happy if she saw how dedicated you are… She’s my best friend, you know?
We just share everything.”
Inside her, Jake felt his mind beginning to fray.
It was absolute, suffocating perfection.
His cock was trapped in a relentless vice of velvet and heat; her walls were so impossibly tight that they didn’t just grip him—they actively fought him for every millimetre of space.
It’s too much, he thought, his vision blurring.
It’s like being crushed from every direction by a living, rhythmic muscle.
He felt a claustrophobic, intense pressure that made his head swim; it felt as though he were being slowly swallowed, his shaft struggling for air against the suction that pinned his throbbing head in place, refusing to let a single sensation go to waste.
She’s going to snap me in half, he realized with a frantic, pulsing dread.
The tighter she grips, the more I feel like I’m disappearing into her.
It’s not just pleasure anymore—it’s a physical blockade.
I’m being suffocated by how small and perfect she is.
She curled her inner walls around him, deliberately milking his shaft while keeping that soft, breathy rhythm.
“Mmmh~ She tells me all her secrets… and I tell her mine.
She even told me how much she likes you… how she wants you to be her first everything.
That’s why this is okay, right?
Because you’re doing it for science… for the contest… You’re being such a good boyfriend to her, even while your cock is busy stretching her best friend’s tight little pussy…”
Yui giggled, the sound vibrating against his very core, her pussy pulsing around him in a way that felt like it was trying to drain the life—and the seed—right out of his body.
“You’re shaking, Jake.
It’s so tight, isn’t it?
Like I’m trying to keep you all to myself… even though I know I’m just keeping you warm for her.”
She ground her hips down with a sharp, wicked twist, her voice dropping to a seductive, taunting whisper.
“Does it feel like you’re being squeezed to death?
Does it make you want to scream?
Go ahead.
I want you to remember exactly how much it feels to be completely held by me.”
“I can’t… move my cock..”
“J-Jake…” she whispered, voice trembling.
“You’re… you’re really inside me right now.”
Jake froze, face burning.
“Y-Yeah… I know.
This is… really weird, right?”
Yui nodded quickly, cheeks flushed bright pink.
“Super weird.
I mean… you’re Mayuko’s boyfriend.
And I’m her best friend.
And now your cock is… um… all the way in my pussy.”
There was a long, extremely awkward pause.
“So… how does it feel?” Yui asked, her voice small and genuinely curious, even as her inner walls gave an involuntary squeeze around him.
Jake made a strangled noise.
“It’s… really tight.
And warm.
And… yes.”
Yui bit her lip, looking equal parts embarrassed and mischievous.
“It’s okay.
You can tell me.
I won’t tell Mayuko… probably.
Does it feel better than you imagined?”
Jake’s hips twitched.
“I— I didn’t imagine this!
I mean… maybe a little.
But not like this!
Not while Halloway is taking notes!”
Yui let out a tiny, embarrassed giggle that turned into a soft moan as she shifted. Enjoying the story? Read on at g.com.
“It’s okay if you like it… I kind of do too.
Even though it feels super wrong.
Like I’m stealing my best friend’s boyfriend’s cock for science.”
She gave another shy little roll of her hips.
“Is this… helping with the data?” she asked, voice cracking with awkward innocence.
Jake could only whimper, his resolve shredding like wet parchment, before he finally gritted his teeth and forced himself to pull out.
As he retreated, he stood trembling, chest heaving, and immediately performed a frantic, wide-eyed inspection of his own anatomy.
He held his cock out in front of him like a fragile piece of fine china that had somehow survived an earthquake.
He squinted at it, checking for structural damage, half-expecting to find that it had been accidentally unscrewed or stretched to the point of permanent elasticity.
It was still there, thank heavens, though it looked like it had been through a car wash designed by a mad scientist.
It was a chaotic, glistening masterpiece of mixed biology.
Near the base, it was coated in the thick, creamy, dough-like residue from Fizzle; halfway up, it was polished to a high-shine finish by Moon-Glow’s crystalline friction, leaving a light, sparkling shimmer; and the head was still weeping the absurdly abundant, silky, and insanely tight-feeling nectar from Yui.
It looked, quite frankly, like a biological experiment that had gone beautifully, terrifyingly wrong.
He wiped a thumb against the side of his shaft, watching the different viscosities smear together in a glistening, iridescent smear of evidence.
He blinked at the shimmering, multi-textured mess covering his shaft, his face draining of all color.
“I…
I don’t think any of these fluids are actually mine,” he muttered, his voice cracking with a mix of scientific awe and utter existential horror.
The lecture hall, which had been holding its collective breath, erupted.
A wave of laughter swept through the rows of students like a gale-force wind, and even the three girls—still sprawled across the table with their legs parted—broke into giggles.
Fizzle let out a hearty, boisterous laugh, Moon-Glow covered her mouth with a superior, amused smirk, and Yui just buried her blushing face in her hands, her shoulders shaking with pure, unadulterated delight.
Halloway watched with clinical fascination, circling them slowly.
“Excellent coating.
Notice the varying viscosity and grip.
Fizzle provides maximum volume and cushioning.
Moon-Glow offers precision and friction.
Yui… well, Yui is clearly the tightest.
Ideal for detailed sensitivity testing.”
Jake stood there, cock rock-hard and dripping, mind spinning in overwhelmed confusion as the three girls moaned softly, their pussies still twitching from the brief intrusions.
He looked down at his glistening shaft, then at the three glistening, waiting girls, and whispered hoarsely: “I… I really don’t understand any of this at all…”
Halloway clapped him on the shoulder, his grin wide, terrifying, and utterly devoid of the usual academic caution.
“Oh, my dear boy, you don’t have to understand it.
Understanding is for people who read textbooks.
You, Mr.
Jake, have the far more important job of executing it.”
He gestured grandly toward the three girls still bent over the table, their pussies glistening and their asses slightly swaying in anticipation.
“Now stop the philosophical musings.
Let the trials begin.”