Opposite them was a large mirror. It couldn't capture the full breadth of their lovemaking, but it reflected the core of it all, from Rachel's high-kicked leg, held by a single hand, to her blissfully vacant expression. Locks of red hair were plastered against her face, mixing with the cascade of inky black that covered her neck. As it came away, several small love bites marked her throat.
Carmen groped at her lover's chest. Sweat cascaded down both their bodies, sliding against each other on the drenched bed sheets. Rachel was on her side, propped up by an elbow, while her cock jerked and flopped about with the endless piston of three huge cocks. Her other arm was draped over Carmen's hip, a gentle encouragement for stronger, faster thrusts. Two human shafts coated in thick veins stretched out her pussy to each side, while the central horse-cock carved the way into her womb.
All three bulged through the petite futa's abdomen. They followed the curve of her body, the horse cock so fat at its peak that it created a small shelf between her tits. Carmen's length allowed her to enjoy both her lover's sloppy cunt and oversized breasts. Each thrust clapped their flesh together, the much larger futa grinding into Rachel's ass.
"You're so beautiful," Carmen said, raining more loving nips on the pale skin. Against her, Rachel was tiny, shoulders all but consumed in her plush chest, but that only pronounced just how huge the three shafts invading her were. Rachel's eyes focused and she turned her head, catching a kiss on the lips.
"It's your fault," Rachel panted. She'd already cum multiple times, screaming and squirting each time, yet Carmen remained steadfast in her rhythm. A slight bump rounded out the redhead's lower gut, where pre-cum pooled around her blocked cervix, "You're the one who wrote me like this. I just wanted to be short and have a huge ass."
"I literally only gave you a huge cock and tits to match," Carmen chuckled, squeezing the aforementioned tits, earning a softer moan from the small futa, "Besides, you were always hot in your own way."
"Own way?" Rachel huffed, contracting her muscles, "Yeah, sure."
"In a cute way."
"That's better."
"Should I make you even hotter?" Carmen asked and reached for the Futa Note, slowing her thrusts as she pushed her weight upon Rachel, "We only tried basic stuff before. What about those 'extreme' things you like? I can make it all real."
Rachel rolled over, still impaled on cock, to look at the pages too. They stopped moving against each other, the only source of pleasure came from being so full of throbbing cock.
"What did you have in mind?"
"Let's see..."
"Fuck, fuck, fuck! Oh goooooddd!" Rachel's voice turned into a gag once more, as Carmen's cock slid all the way through her for the umpteenth time. Her body was even smaller than before, just the right size for Carmen to hold one handed, while the other jerked the redhead's cock and hosed the bedroom in more semen. This would be something to remember for the future, Carmen thought as she lifted her personal fleshlight off and listened to her hoarse cries for a second. It wasn't much of an external change.
Rachel still retained her limbs and cognisance, but her mind was focused solely on pleasure. With Carmen inside her, she wrapped her arms around her protrusive middle and used her legs to aid each time she was lifted. At that size, she was too small to fight back. Though she never would, not when her internals had been converted into one, endless pussy from end to end. At only one and a half feet tall, barely as long as her pillows, her throat distended like a frog as the flare rose up to spawn from her lips. Her tongue flailed beneath it, while she slurped and swallowed around the girth.
An alarm rang and Carmen laid back, pulling her on top. The changes reverted as she'd written, her experiment proved a success, that transformations could be triggered by something. She'd made sure the trigger for making Rachel almost an onahole was obscure to say the least, the kind that only they would ever knowingly activate; that being a certain single by Rick Astley. The redhead drooled and gasped for air atop Carmen.
"How was it?" Carmen asked. If she weren't holding back like her life depended on it, she'd have cum long ago. Her balls ached, a futa's unusual anatomy meant they were literal cum tanks, filling with more and more semen every second she denied them release.
"Do it all the way next time," Rachel said and pulled her into a kiss, "It's so hot being your toy. But toys don't need arms and legs, babe."
"Noted," Carmen chuckled, "How about we try the next thing?"
"You're gonna fuck me to death, I know it."
"Never. I'll never hurt you again, in any way, shape or form."
"Death by snoo-snoo wouldn't hurt though."
"You know the book won't let that happen anyway. Besides, I can always make it so you live forever."
"Would that even, ooh... work?" Rachel groaned as the next change rolled through her. Unlike the previous one, it was minor, a simple boost to elasticity for a specific purpose. Her cocks no longer oozed pre-cum, their supply exhausted and left only with the real seed.
"Maybe. I don't plan on testing it though. Your life's too important," Carmen said and stood up, then turned her little lover so her front faced the mirror once more. She hooked her arms under Rachel's knees and lifted her into a lurid full nelson, exposing her stretched out stomach and pussy to the mirror, "Ready?"
"Fuck my tiny little piss hole," Rachel moaned.
Together, they watched as Carmen lifted her so the human cocks fell out with a juicy slurp. She grunted, flexing them upright and, one arm supporting Rachel, angled one at the redhead's underused ass. It pressed in without a problem, a mix of extravagant pussy lube and the Futa Note's magic stretched Rachel's knot of muscle, swallowing inch after inch. But that wasn't the full plan, just a test to make sure the change worked. With the head lodged inside, Carmen moved to her second 'normal' dick and curved it around to aim at Rachel's pussy.
But she didn't slide it back in alongside her horse member, instead she aimed above it and pushed. Futanari cocks weren't connected to bladders, merely there for pleasure and, in theory, breeding. The urethra didn't change location, Carmen confirmed this as her cock entered a forbidden hole. Tendons stood on end up and down Rachel's neck. No amount of magic reduced the sheer monument of this penetration.
It was slow, torturous, as Carmen's glans stretched her and entered. She'd written for the passage to be clean and empty beforehand. Half a centimetre slid in, approaching the end of the head, and Rachel squeezed the tightest she ever had. Not a cruel lover, Carmen reached a hand down past the redhead's masculinities and found her clit, toying with it and earning a scratchy moan. It worked to relax her girlfriend, who took the fattest point of Carmen's cock.
She didn't start thrusting. Magic or not, Rachel's urethra was stretched around a three-inch thick phallus, barely a fraction of the way in. It'd need time to adjust.
"Keep going," Rachel said.
"You sure?"
"I gave you the idea remember?"
"I'll take it slow," Carmen said and reared her hips back, dragging millimetres of cock out, then pushed them back with interest. A low, drawling groan rumbled in Rachel's chest as all three of her lower holes were stretched. One was a virgin just moments ago, now it conformed to inch after inch of cock. The barriers between each was thin, barely noticeable as all her members throbbed asynchronously, like they were talking to one another of their experience.
One was in a wet haven. A gentle warmth enveloped it and palpitated from all sides, the cervix like a second pussy as it nursed on her length. The faint touch of fingers through thin skin coaxed frequent pulses of pre. The other was drier, held in a tight hug like a close friend after a month apart, while mostly smooth walls, broken only by the ridges deeper inside, squeezed harder than the pussy. It wasn't a tunnel meant to be stretched that way, but it no less enjoyed it.
The last was barely inside its sheath. If Rachel's ass was reluctant to accept its fate as another fuck-hole, then her urethra resembled a stubborn cat that tolerated sharing its world. But like a cat, all it took was perseverance. That permeated Carmen's life for so long. She strived through poverty, through losing her father, having her first genuine girlfriend taken away, then the second, and now she was back with her. And the sex was better than ever.
Not to say it wasn't great before, but three cocks along with a body hyperfocused on sex made for a mind breaking combination. Or it would have for anyone else. Carmen led the pleasure herself, sprinting at the front of a pack of wolves ready to pounce the moment she let them. Each thrust let them draw a bit closer, her orgasm nipping at her heels.
"That's six inches," Carmen said, looking over her lover's head at their shared reflection. Rachel looked too, panting hard, her stomach distorted by three separated bulges, each from different holes. The shortest was also the most pronounced, being closer to the surface. At that point, Carmen's cock head was nestled firmly inside the once empty bladder. Her shape was ill-defined as it filled with pre-cum.
Twelve inches still waited outside, the leftover pussy juice drying on its length. It appeared to condense as it pushed into Rachel's urethra, squeezed tight by the unfamiliar hole. Just past its girth, the onyx horse cock stretched its respective hole and, hidden beyond that, her anus tried closing on instinct without success.
"Get it all in me," Rachel moaned, lifting her head to nuzzle Carmen's collar, "I love feeling all of you inside me."
