Growth with sensitivity (Patreon)

*The bright studio lights illuminate Classroom 301 at Belly University as the production crew makes final adjustments. Jenny Mitchell, a petite 22-year-old grad student, fidgets with her thin-rimmed glasses, tucking a stray strand of red hair behind her ear. Her university-branded white shirt fits snugly against her modest curves, crisp black pants completing the wholesome look they want for the promotional video.*

"Alright everyone, places!" calls Director Stevens. "Jenny, you'll drink the standard growth formula, and we'll capture the gradual transformation for the science department promo."

I hurry to the storage cabinet, grabbing a vial of what appears to be the normal serum - same amber color, same size. Only later would I notice the crucial "Experimental Formula X-69" label.

"Ready when you are!" Jenny calls out cheerfully, adjusting her messy bun one last time.

"And...action!"

Jenny takes the vial, drinking it quickly. For three seconds, nothing happens. Then her emerald eyes go wide behind those glasses.

"Oh...OH!" she gasps, stumbling backward until she hits the chalkboard. "Something feels...different...my whole body is tingling..."

Her delicate hands drift to her midsection as the first wave hits. "Ohhhhh fuck...my belly...it's like every nerve ending is on fire but in the best way possible! Unnnngh...I can feel myself starting to grow..."

The first visible swell pushes against her polo, the fabric riding up to expose a strip of creamy, freckled skin. Jenny's breathing becomes heavy, her small breasts heaving as pleasure courses through her.

"Every inch of expansion feels like...like a thousand vibrators all going off at once inside me! OHHHH GOD!" Her hands caress her gradually bloating middle, which now resembles a small pregnancy. "It's making me so hot...so sensitive...I can't...I'm gonna..."

The dean steps forward. "Ms. Mitchell, are you alright? This seems unusually intense-"

"CUMMING!" Jenny screams, throwing her head back against the chalkboard as her first orgasm hits. Her glasses fog up instantly as sweat beads on her flushed face. "Holy fuck holy fuck HOLY FUCK!"

Her belly surges outward dramatically, now the size of a beach ball and still growing. The polo rides up completely, exposing her whole quivering midsection. The waistband of her khakis strains against the expansion.

"Jenny? Can you hear me?" Professor Chen approaches with concern.

"Can't...stop...CUMMING!" is her only response, punctuated by primal grunts of pleasure. When Chen's hand touches her shoulder, Jenny's whole body convulses.

"UNNNNGH FUCK YES!" she wails as an explosive orgasm rocks through her. A dark wetness spreads across her black pants as she squirts forcefully, her juices running down her legs and pooling on the floor. The camera keeps rolling as her belly continues its relentless growth.

"So big...getting so fucking big!" Jenny moans, her expanded middle now jutting four feet in front of her. "Stretching...filling...every throb makes me cum harder!"

The dean orders everyone back as Jenny's belly balloons to impossible proportions, now wider than she is tall. Her glasses sit askew, auburn hair completely disheveled as she writhes against the chalkboard.

"Gonna pop...oh god I'm gonna POP!" she chants between climaxes, her sphere now taking up most of the front of the classroom. "Too full...too much pleasure...can't handle it!"

Her trembling hands begin to drum lightly on her taut surface, producing a distinctive hollow sound that echoes through the room.

*THOOM* "UNNNNGH ANOTHER ONE COMING!"
*THOOM* "SO FULL...SO GOOD!"
*THOOM* "EVERY TAP MAKES ME CUM!"

Visible waves ripple across her massive expanse with each tap, triggering fresh orgasms that leave Jenny screaming in ecstasy. Her belly continues stretching safely thanks to the experimental formula, though she's far beyond coherent thought.

"I'm cumming...I'm cumming...I'M ALWAYS CUMMING!" becomes her mindless mantra, punctuated by increasingly high-pitched drum sounds as she taps her enormous belly.

The production crew watches in stunned silence as their simple promotional video has transformed into something else entirely. Jenny's belly now fills a third of the classroom, her small frame completely dwarfed by her own expansion. The dean orders the cameras to stop rolling, but they can't tear their eyes away from the spectacle.

Hours later, Jenny would still be there, trapped in an endless loop of growth and pleasure, her belly defying physics as it continues to stretch. The experimental formula's effects show no signs of wearing off, her only communications remaining:

*THOOM* "MORE!"
*THOOM* "BIGGER!"
*THOOM* "CUMMING!"

The incident would never make it into the university's promotional materials, but it would become legendary among the student body.