Futa Shot Glasses

Cadance sat at the edge of her bed, looking over the long list of notes. There were various warnings and cautionary titbits, exact measurements and percentages that all fell away as the one continuous thought that ran through her mind was why Twilight even developed a spell like this in the first place.

Thinking of Twilight, then, only made her think of what the mare might look like with one of… those, of her own. She would never dare speak of it to her husband but such thoughts always lead her to places where her hand was hefting the hem of her dress up and the waist of her underwear down. Now knowing that Twilight had this sort of spell filled Cadance’s thoughts with far more lurid images than she dared dream of before.

Before matters grew out of hand, however, she stood and gingerly shuffled the last of her undergarments off. She needed to focus; polymorphism spells were often some of the most taxing and one small miscast could have disastrous consequences.

She did, however, keep her sweater on. An amusing pretence at modesty some might say but Shining did have a penchant for seeing her in that state. Her hands ran down its front, across the gentle curve of her chest and she cooed, thinking of how often he did the same while nipping just on the right part of her neck that made her…

"Oh for Celestia’s sake!" the mare muttered darkly, sitting back down upon the towel.

It was still morning yet and Shining would be out for some time on his run. Which meant all the more time to get to grips with this spell.

Cadance looked to the notes and then back down between her folded legs. Her horn lit, the magical field feeling out down below her stomach for the right point. A shiver ran through her at the sensation; having another’s magic touch such sensitive parts was exciting but even her own left the most wonderful tingling sensation. Her search ended just above her vulva, though she did spare just one tiny pinch lower.

"Hnnn! Twilight…" That was her favourite: imagining the unicorn using her powerful magic to tease and tease, usually while Cadance was still dressed and struggling to maintain her composure.

Setting aside those thoughts once more, she focused on the spot to mark the image in her mind. It would form the base from which the polymorphism spell would radiate. And it did seem simple enough – twisting and shaping skin and flesh, turning it to different purposes than before instead of completely rearranging bones and joints.

So shivering, Cadance reached down and smoothed out her coat, gently holding that part flat. Her horn lit once again and she directed the magical field back onto that point; her hands fell away as it began to do its work. The field was slightly cool as opposed to its usual tingling warmth and a sensation like pressure bore down on her, almost rhythmically. The more magic she channelled into the spell the more intense the pressure grew, until she was gasping for air and shivering all over.

Reverse the flux and maintain its strength – that was the next part. And so she did.

And fell back onto her bed, letting out a shrill cry.

Cadance had used polymorphism spells on herself before, for minor things like assisting healing magic or simply testing out a new application. In all of those times the sensations were strange and sometimes even a little pleasant but nothing compared to this.

It was as if the skin around that point had its sensitivity increased a hundredfold, where even the passing of air over it felt like somepony sucking on her clit. And it was undeniably that kind of immediate sensation – her hands gripped the bedsheets and she futilely thrust into the air, spattering what fluids had already begun to leak from further below onto the floor. At this stage there was no stopping the spell, it would work its magic until completion. All Cadance could do was guide it.

For it needed guidance – the pillar of flesh that rose from her pelvis was shapeless. She called to mind her husband’s: thick, wide at the top when he was aroused bulbous. The thing emerging from her glowed with the aura of her magic and shifted red from the rush of blood that flowed to it. Its flesh flattened down in parts and lengthened along the rest. Cadance whimpered weakly – was this what it felt like for stallions to have somepony stroking and rubbing them? Surely it could never feel this good?

It was only upon sitting back up—still shaking like a leaf—that Cadance recalled there was one other component to the spell that needed to be taken care of. A most important component. Widening the magical field between her legs she encompassed a smaller point below the shaft that was taking shape. Skin shed its coat as before, bulging out while inside flesh coalesced and morphed into something different.

Steadying herself with a hand on one knee, Cadance giddily reached across her chest with the other and gave a sharp tug to a nipple that pressed against the cotton sweater. The mare mewled, clear fluids spilling from her new cock as it throbbed needily. Reaching to just below her knee, a wicked, terrible thought shot through Cadance’s mind. The notes advised against it, warning of the addicting nature of pushing the magic that far but it was not for her… And he would certainly not settle for anything less than her best.

Already, the heavy balls that hung beneath the shaft added a weight that felt strangely right. Images played through her imagination of spilling seed across a certain purple mare’s underside. But not the small spattering of love from a stallion, no. The field’s strength throbbed and intensified and Cadance groaned throatily as she felt it envelope her new testicles. There would need to be more, so very much more.

Panting, gasping for breath, she delved her other hand down between her legs and felt at the aching member.

“Oh…” Every inch of it was sensitive to the touch. Her delicate fingers traced a line from the already flaring head to the medial ring and Cadance could not stop herself from trembling all the way, from bucking her hips twice and sending a string of seminal fluid to her face. “Mmmph, yes!” Her fingers readily wrapped beneath the ring, tightly gripping the base as a particularly hard throb ran through the shaft. The hand at her chest kneaded her breast freely now, fingers pulling and twisting the nipple.

The magical field extended outwards and Cadance put it to work on extending her new tool with it. Its fat head bulged and her hand stroked back up, her fingers splaying around it and drawing a copious dribbling of fluid from it. By now it reached to her knees but still stood stock stiff, ready to be plunged into whatever pony offered themselves up to her. In lieu of that, Cadance’s hand continued to stroke, to squeeze and rotate and jerk and—

Her hips bucked hard, balls smacking against her fist as her cock spasmed and shot a thick glob of pre clear over the bed to hit the wall with a wet splat.

“Yes!”

It was maddening and wonderful and utterly unlike anything she’d ever felt before. Every stroke sent rippling waves of pleasure down through the shaft but they were tight and focused, intensified beyond what she was accustomed to. Her fist pumped along the shaft, pistoning on it in time to the thrusting of her hips that was impossible to stop. Pre spattered across the bedsheets and wall but thoughts of those had fled Cadance in the wake of this pleasure.

Yet on her magic drew her penis, on until the shaft reached beneath her knees and she struggled to reach the tip. That was the point she turned the field from lengthening it to stroking it; squeezing it; cooling it down and heating it up; tingling along its length like dancing fingertips…

She was close, so very close already. These new sensations were irresistible. Her wings had long since snapped out to their apex and stood trembling, twitching with unrestrained pleasure at even a gentle breath of air.

It was with a gentle squeeze to her heavy balls that Cadance finally felt herself unable to hold back any longer, that her magic field clamped down on her throbbing member even as her hips bucked against it.

“Bucking… Nngh!”

The first shot of semen hit the bed, the second hit the wall and every one after that began to paint it white. It was like her mind had melted and all that was left were the parts that focused on pleasure; the mare lay back upon her bed, stroking her hooves together and squirming about on the sheets as her cock throbbed and twitched.

Ejaculate began to pool and it was only with a little luck that Cadance caught herself, eager to preserve her hair from any explanations to the stylists.

Her long member bobbed and wobbled—still shooting its mess—as she bolted up and stood on shaky legs. Semen splattered across the floor and landed against and armoire, it fell in thick strands against the chest of drawers with Shining’s casual clothing.

“Oh… Oh! Uh, counterspell; c-counterspell!” She muttered the words that would help her focus but… she couldn’t concentrate on them and they spilled from her lips, ill-formed and useless. “Uh… “

She fell to her knees, thinking with some wryness that this would certainly be enough for Shining.