You climb the great pair of grinding thighs. On your perilous accent, the thin light between the spongy cliffsides acts as your North Star. The soft flesh sinks around your grasping digits, heaps of it squeezed like dough. However, with every tremble of Matsudo's leg, you find yourself sliding off, shaken deeper into the crevice of her natural curves. It's wilder and harder to keep hold of than a bronco at a rodeo! Both limbs thrash with such abandon, such unbridled energy, the chair distorts and shifts.

"Still itches..." Senpai's voice is distant as the horizon, calm as a leaf landing in a koi pond, and balanced as a tightrope walker, meters in the sky. Meanwhile, it's chaos below, where you're stuck! It's a wonder you can hear her over the roar of skin scratching together. She's not even making an effort to annihilate that tiny itch - that insignificant, blonde-haired, panting itch - and it's shaking you halfway to death!

The echo of her voice in your ears, however dim, fills your shrunken form with newfound courage. With a gulp of air - accidentally sucking in some of Senpai's sour sweat - you leap back up, bracing yourself to her left thigh. Your uniform jacket and shirt brushes against the steep slope as you scale it.

Brisk jerks from her twisting calves keep threatening to knock you of them. The higher you scale, the more each knead and rub shakes you. It doesn't help that the fall is dizzying; even when lying horizontally, the sheer size of those legs are something to behold. If she were this big compared to you at standard height, they'd be able to wrap around your apartment building easily. And it'd just take her squeezing her glutes together to smash that steel structure...

At the same time, despite your perilous position in the center of the pressure, the gigantic limbs seem slender and soft. All that time sitting at computers has taken its toll: rather than hard walls of toned flesh, you find yourself compressed and squeezed between delicate, pale skin. With the continual motion, a faint, fishy odor begins to permeate the air. The scent drifts further as your climb continues, away from the sweaty spot where the two surfaces meet. It reminds you how, despite the rocking and rattling you're forced to endure, this really is a sensitive spot on Senpai. Maybe an erogenous zone? She's pushing you for into it, consciously or not. You'd love to run your hand across this thigh at normal size, caressing it, enjoying its softness as it welcomes your hand...

A soft light awakens you from daydreaming. Your tiny, blue eyes blink, trying to adjust to it. The fluorescent bulbs burn on the ceiling, looming over each desk. They shine equally on everyone in the room, large or minuscule. The warmth surrounding you dissipates gradually into the stagnant classroom air.

One final jolt from the great leg cliff, and a wiggle from your hips, tosses you up. With the sweat built over the thigh's side, you might have enough friction. It rushes against your sides...

Fwip.

Freedom! Sweat falls off the nape of your neck. The weightless feeling of flight lasts for two and a half seconds, before you smack atop her right thigh.

You did it - you escaped the club president's gluteus canyon!

The ground stops moving. Senpai must have finally relieved her little itch. When dizziness from the constant motion subsides, you notice her skirt fabric rising near you, the pleats forming miniature coves. They start to stretch lower, sinking down.

*Sigh*

Matsudo's relief makes her return to a relaxed poise - spreading her legs maybe a twinge wider than appropriate. The tension soaks off her, as it does with you. Residual pangs still torment your chest and arms, having been thoroughly ground - but you find yourself breathing easy, too, in the refreshing stillness. For a second, the two of you simply remain like that. A towering, calculating Senpai, and her mousier-than-usual Kouhai, with the same sense of serenity.

You wish it could be longer.

Her voice echoes: "Might be enterin' data for a while. Better get comfy."

Just as suddenly as it stopped, the ground shifts beneath your feet. The pale platform you're resting on slides across the chair, to the center. Your nearly-flattened hands spring out, and your knees wobble, trying to keep still amid the new quakes. They're far less severe, and end quickly. But there's a loud noise to the side. Skirt fabrics fall back in retreat. Her left leg's lifting up, with all the spectacle of a whale surfacing for water. The lights above are blotted by the oncoming fleshy mass.

And it's approaching at a lightning pace, whizzing loudly - falling right towards you.

"Senpai!" You scream, watching it fall. "I'm down here! Please -"

Squish.

Her gaze remains on the computer screen.

Everything becomes a dark blur.

A whole world of weight drops on you all at once. You can barely hold on for a second, like Atlas supporting the sky - before both your arms collapse. Your body is thoroughly pulped, bones and muscles squeezed together. A smidgen of consciousness remains in your mind, letting you fully process the situation... before Matsudo twitches. Everything bursts. Without a thought, she smears you into an indiscernible red mark upon her skin.

Matsudo itches gently at her legs, having finished crossing them. "Theeere we go. I'll put in a few more data points for today..." She itches behind her glasses.

Sodachi Taiyou...
Having successfully climbed his senpai's legs...
...Was nevertheless crushed underneath them, as they folded.

In the end, his efforts did nothing to undo his fate:
lost as a stain on Matsudo's otherwise-spotless thighs...
Until her next shower.