Story: Changed Relations

(I took this story and edited it to make it my own and set it in a world I made up, and sorry but I don't remember the original author. If it was yours, let me know and I'll credit you/remove it...whatever you want.
Also, I've always been curious as to what these characters look like.  If anyone wanted to do some fanart, it would be amazing...as I wont be able to pay you :p)

Changed Relations

The Change was an event that happened nearly two years ago.  For some reason, over a 24 hour period, the body of every male and female on the planet between the ages of 16 and 50 just changed.  It was all quite sudden - everyone who woke up during that time had been changed in some way.  Some changes were standard; some were taller, or shorter, or had different hair. Most common changes were very obvious – some women’s breasts changed size dramatically, some becoming much smaller while others became as big and round as a hentai cartoonist’s dream. 

Other changes were more extreme; some guys turned into girls or grew breasts, while some girls turned into boys or grew a cock.

Science was at a loss to explain it, as there was no evidence of what caused the changes.  No solar flares, no radiation spikes, no comets, no virus’ spreading across the world….it was simply a case of one day everyone was normal, the next they were changed. 

The most common rumours were that people got what they wanted deep down, or possibly, what they deserved…. 

Jenni Bennett was happy. She was out shopping on a gorgeous day with her brother a long way from where they lived, giving them the chance to be the lovers they wanted to be, rather than just the brother and sister that they really were. Her big brother's hand felt good on her butt as they walked through the mall.

Everywhere they went, heads turned to stare at Jenni.  Not just because of her beauty, which was more than considerable, but also because she was, as she put it, Fucking Stacked. Thanks to The Change, her boobs were like something out of a cartoon – each cup of her 32-W bra held a gigantic beachball of a breast, which together took up her torso from ribcage to bellybutton and projected far out to the side.  Jenni did not mind their size, infact she relished them. Her boobs and people’s reaction to them gave her power; to do whatever, or whoever, she wanted.  But the man she wanted right now was her huge-dicked brother.

Jenni kept stealing glances at the huge bulge in her older brother's tight jeans. To most other girls it looked like a fold of his jeans or a trick of the light, but Jenni’s expert eye could make out the 9” long outline of Tim’s soft cock.  She shivered a little, trying not to think about it hard or she’d get too excited. 

"Sweetie-boobs?" Tim asked his little sister, his hand resting in a place that let him touch her boobs, hip and ass all at once.

"Hmmm?"

"Do you want to shop for bras?" he asked, openly leering at his sister's immense expanse of exposed cleavage.

"Do you mean," Jenni smiled showing perfect white teeth, "Do I want to get measured and try ON bras while you watch?"

"Well yes, my love," Tim grinned wolfishly, squeezing his younger sister's butt, "You know that's what I mean."

"While the no doubt busty salesgirls squeeze against my huge boobies?" Pretty Jenni asked sweetly, eyeing his now-lengthing bulge "and you stare at me in my little skirt, taking for-EVER to look at myself in the shop mirror for bra I try on?"

"Why yes, that indeed was what I had in mind." Tim leaned forward and kissed his ravishing young sister on the lips.

"Ooo Tim," Jenni teased blissfully, "Are you sure you should kiss me like that? I am your sister after all."

Tim gave a quick glance around to see if anyone heard that. He couldn't be certain, but a man standing close by seemed to have a stunned expression and was looking right at them. On the other hand, Tim thought, maybe the guy had just noticed Jenni's colossal rack for the first time.

Jenni didn't seem to have much concern about being overheard by strangers. She rubbed Tim's muscular chest through his shirt. "Alright Bunsen-hose," she said cheerily, "We'll go shop for bras." Bunsen-hose was one of the pet names she had for Tim. Buns and hose. Jenni almost drooled whenever she looked at her brother's muscular, round little butt, and she got wet just thinking about his huge "hose."

* * *

The shop they decided to visit sold larger bras and was called "Minx." Two pretty, immaculately dressed girls were behind the counter as Jenni and Tim entered, and it was obvious why they worked there.  Both were easily an MM-cup, obviously helped by The Change, but even their eyes went wide when they saw huge breasted Jenni. Tim knew he was going to have to work hard to control himself; three very busty girls squeezing into a changing area was one of his ideas of heaven…

"Can one of us be of assistance?" the cute brunette asked.

Jenni smiled sweetly. "I'm looking for some bras." She unwrapped herself from Tim's arm and stepped toward them, her huge tits bouncing slightly. "Lately the 32-R’s I’ve been wearing just seem so tight…"

* * *

One hour and forty-five minutes later, Jenni and Tim exited the mall with their arms once again around each other.  Jenni was now very horny – she’d watched her brother’s bulge get harder and bigger with every bra she tried, making her ever hornier – and she now noticed that he was having difficulty walking because of his denim-confined cock. 

"God Tim, I want you to fuck me," Jenni breathed into her brother's ear as she stopped and rose onto her tiptoes, smooshing her giant firm breasts up against him. She could see Tim’s cock began to harden even more in response to her words; it was fairly obvious that their shopping trip was over. 

"Do you want to go back to the room for a quick one?” he asked, now feeling his erection grow harder and press against her leg. 

Jenni kissed her brother deeply, before smiling and whispering into his ear "I don’t want a quick one – I want a long afternoon of you fucking me senseless.”

Jenni covertly stroked Tim’s leg, running her fingers along his hardness.

“I want you to pound my pussy with this huge dick of yours till you can’t take it any more and you flood me with your spunk.  Then I’m going to titfuck you like those tiny-tit bimbos in the shop wish they could, until you coat my face and tits with a massive load. Then…” she paused, sqeezing his butt a little. “…I want every inch of your cock up my ass…"

It was a little over the top, but talking like a slut always made Jenni extra horny.  Since they were already having an illicit affair, she figured she might as well go all the way.

“and after that…” she moaned, actually shivering at the thought “since you’re such a fucking stud, we’ll do it all again…”

The pair immediately turned round, heading back to their hotel and the luxury room that was awaiting them.

* * *

As soon as the door to the hotel room closed behind them Jenni and Tim were on each other, desperate to remove each other's clothing and fuck. Foreplay was out of the question; both were as ready as could be.  Jenni pushed Tim's groping, fumbling hands away and peeled off her top to expose the massive bra that strained to contain her mammoth tits.

"Hurry, get your pants off bro," Jenni moaned, quickly unbuttoning her little skirt, tossing it aside and stepping out of her now-sopping thong. Tim had gotten his jeans off but struggled getting his huge erection untangled from his boxer-briefs.

Unable to wait, Jenni pushed Tim back onto the bed and straddled him, taking hold of his monstrous 20" cock to get it inserted in her hungry, glistening pussy.

"Ohhhhhhh....yessss " she hissed as she felt inch after inch slide into her wetness. She felt the rigid shaft fill her insides, forcing her lips apart as it thrust deep within her. "God your dick feel so fucking massive!" she groaned as she slid further and further down it. 

Tim loved it when Jenni was this horny.  Her pussy was soaking, alive, pulling, squeezing, and drawing him farther and farther into its slick depths as he started to pound into her. Her body shook, and her huge juggs bounced and bobbled above him as she lowered herself onto his cock. 

"Yes, yes!" she gasped, as she slid down. "Mmm…soo good!"

"Oh yeah" he rasped "You feel so good. I'm gonna fuck you so hard"

Jenni fell forward, smooshing her huge breasts against Tim’s chest as he pushed himself deeper in her.  “Yes, fuck me, give me all of it. I need it so bad!" she breathed

She moaned loudly as it slid deep into her, and yelped in pleasure as he bottomed out inside her.  “That's it, baby! Mmm…That feels soo much better now it’s all in!” Jenni leaned back again, now completely impaled on Tim’s mighty cock.  She ground her clit against Tim’s pubic bone as she grabbed one of his hands and smooshed it against her giant tit.

"Mmm…fuck me Tim. Fuck me big brother. Screw your huge titted little sister like the slut she is," the dirty words rolled out of Jenni's mouth. "God Tim your cock is so fucking massive!"

Tim was overtaken with lust and determined to give his sister the fucking she deserved.  Flooded with adrenaline he wrapped his arms around Jenni’s waist and picked her up, impaling her completely again on his length before pulling her off and then throwing her to the bed.  Jenni let out a moan desire and spread her legs wide, her fingers playing with her clit as Tim lined up his cock again.

“Hmmm…do it!” she moaned, knowing what was coming next “you’ll make me cum so hard…”

In a flash, Tim bucked his hips and impaled Jenni again, his entire cock sliding inside her soaking cunt in less than a second.  Jenni felt like she was melting with how hard she came, her entire body tensing as she shook and clawed at the sheets, barely able to even breathe. 

Tim held his cock there for over 30 seconds, resisting the urge to cum as he let his sister ride out her mind-numbing orgasm. 

"Ooooooo gawdd Tim," Jenni gasped, just able to focus as she came around. "I love your giant cock. I love your giant fucking cock inside me. Gawwd it’s so massive…it feels like you’re fucking me with your arm!" She moaned, bucking wildly as he started to thrust in and out of her.

"Jenni baby," Tim exhaled, loving what his little sister's tight pussy was doing to him. He thrust his hips forward, his long thick cock going deep inside her as she slid back and forth on it.

The horny siblings fucked furiously like this for several minutes, their building ecstasy driving them both wild. Tim would sometimes strain to lean forward to get a face full of Jenni's enormous jugs and she would accommodate by grabbing the back of his head and mashing it into her huge pillows of breast flesh...

Their screwing continued. Tim could feel his sister getting close to yet another titanic orgasm, and he felt his was not far away. 

Jenni tried to hold her oversized tits, which were bouncing wildly as Tim pumped her harder and harder.

"OH shit Jenni, I'm going cum baby I'm fucking cumming..." yelled Tim.

"Yeah do it babe cum inside me babe fill me with your hot cum," replied Jenni, grabbing his ass and pulling him completely inside her. 

"YESSSSSSS....OH YESSSSS I'M CUMMING BABE, OH FUCK HERE IT CUMS...." gasped Tim.

Cum erupted from Tim's cock, shooting up and into Jenni's pussy and filling her like a condom.  Within seconds So much cum was pumped into her that soon it was flowing from her pussy.

"OHHH MY GOD Timmy ahhhhhh yes yes YES", Jenni just started to mumble incoherently as she had another titanic orgasm while Tim continued to fill her with his huge load of cum.

Tim’s cock soon stopped erupting and he collapsed on Jenni, his cock still buried in her shivering pussy as she rode the aftershocks of her incredible orgasm.

After Jenni finally came back to her senses, she kissed Tim deeply, grinding her hips against his and feeling his rod stimulate her insides.  Resisting the urge to fuck him again and deciding to keep her promise, she pushed him back until his cock had slipped out of her. 
"Mmm…and now time for part two, like I promised! But I want to watch this time." she said as she took her brother by the hand and led him into the bathroom.

They got inside she shut the door, Jenni dropping to her knees in front of the fitted full length mirror. "I want you to fuck my huge tits with your dong" she moaned sexily, as she cupped her tits and arched her back “Then I want to watch as you shoot your load all over me!”
Tim’s cock was still wet and slippery from being inside his horny sister, so it slid nicely between her tits as he I stepped forward.  She moaned and stared into the mirror, watching his throbbing cock move slowly back and forth through her cleavage. She jiggled her tits around his cock, moving them back and forth along the rod as Tim fucked them.

She was really putting on a show, and soon Tim’s dick was spewing precum all over her shiny tits. Jenni was enjoying the action as well, and she reached down to finger her clit. Tim grabbed her tits with both hands, squeezing them hard around his cock as he started to pump harder and faster.
“God sis your tits are amazing!  I could fuck them all day!” Tim moaned.
The sight of him fucking her beautiful her tanned tits in the mirror and hearing her moans as she got off was soon too much for Tim. Jenni grabbed his dick and started pumping it with both hands, completely overcome with lust.
"I want your cum, Tim, I want you to shoot it all over me!" she cried as she stroked his dick harder and faster. Her lust for cum was such a turnon, Tim could actually feel her trying to milk the cum from his balls. He looked over at the mirror at her jacking him off, on her knees begging for his cum. Her motions were causing her big tits to jiggle wildly and there was precum flying everywhere as she jacked his dick, landing all over her face and chest.

“You want to fuck and shoot your cock juice all over these beautiful tits don't you Timmy?” she teased, egging him on.  “I want you to. I want you to come all over my tits…spunk on my face, in my hair, in my mouth, whatever turns you on…just give it to me!”

Her filthy words were too much and Tim felt the familiar sensation rise from his balls and travel up his dick. He groaned and grabbed his cock, pointing it at her while watching in the mirror.

Jenni sat up, pushing her tits together and up, offering her breasts as a target to shoot on. She gasped as she looked in the mirror in time to see Tim point his dick at her chest and shoot a gout of cum directly at one of her tits.  It slapped against her breast, and a thick pool collected in her cleavage as his cum dripped to her nipple. Jenni was ready for the next shot and caught it in her mouth, pulling away as she swallowed.  The next one shot just as high, splashing on her cheek. Tim watched as it slowly flowed down her face to her chin where it dripped off and onto the top of her left boob. He slid his dick back between her spheres as continued to cum, coating her face and the higher hemispheres of her amazing juggs with his cum.  It started to flow down into her cleavage, lubricating the passage he was fucking.

As his orgasm died down, Jenni pulled her tits away and bathed his cum coated cock with her tongue, sucking it expertly down her throat. When it was clean she rubbed the cum on her chest all over her boobs, coating them in the sticky liquid. She then licked each of her fingers clean before finally looking up at him, smiling like a kid in a candy shop.

"Mmmm, that tastes so good Timmy! I always love the taste of your cum!”

Tim could only nod, a little exhausted from the experience. 

“Say, why don’t we take a little break?” Jenni asked, idly stroking Tim’s now semi-hard member and sliding her slick boobs all over his crotch.

“Hmm…why’s that sis?” he asked, feeling his cock pulse in pleasure with each movement of her flesh. 

“Well…” Jenni teased, smiling as she licked up Tim’s shaft, causing him to hiss with pleasure. “I’ve not modelled my new bras yet.  And I want you all big and hard when you take my ass…”

Tim grinned as his sister pulled her cum-covered spheres away and went over to her shopping bags.  It was going to be an awesome afternoon….

***