Twin Studies are Crucial {darkest_fate&NullRPs}

[darkest_fate]

"Why the hell won't it go down?" Jess whined as she leaned against the bathroom door. "It" happened to be a plus sized cock that was now sticking out from her jeans and jutting into the air. It pulsed with each hearbeat, and Jess could swear the stupid thing was growing bigger with each passing second. That shouldn't even be possible, seeing as the stupid thing had already started pretty large to begin with. But now she was pushing it around in the bathroom, really, really hoping that it somehow depleted.

It wasn't as if Jessica had been born with a cock. In point of fact, she'd been born fully female, with a matching twin who looked every bit as cute as she did. Sixteen years had made both of them look pretty damn adorable, at least enough to attract attention and the occasional boyfriend. Not that anyone could really penetrate the whole sister/twin bond thing they rocked, but they tried. When you had a pair of petite redheads with fetching smiles and totally adorable freckles, you didn't have much choice. Jess had been more or less just having fun with life, enjoying high school and all. If her twin hadn't suggested she start preparing for college...

"Oh, you can't blame her, that's totally not fair," Jess mumbled as she slid down to the bathroom floor. It was tempting, but Jess had been the one to answer the shady ad. First clue of shadiness: asking for cute teenage girls for an experiment. Second clue of shadiness: offering ridiculous amounts of money, enough to get at least Jess through school, and maybe even help her sister, who would likely have at least some scholarships and all. But Jess had signed up, and so she'd become a guinea pig for the new FutaTech industries.

... Jess had thought they just sucked at spelling "future," okay? Plus it wasn't like she knew about futanaris before she became one.

She'd woken up with the plus-sized dick after signing the waver. It was supposedly for some sort of program to allow lesbians to improve their sex life or... well, honestly, Jess hadn't been paying attention. She had paid attention as they told her she had to keep the damn thing for at least a month, that it might produce pheromones, and that she may want to "milk" it fairly regularly.

Slightly miffed but several thousand dollars richer, Jess had headed home... and nearly ran into her sister. It was weird and maybe a little vain, but Jess couldn't help but find her twin utterly desirable, and she found herself literally staring at her still fully female sister. And she kept staring, through most of doing chores and dinner and now she had quite the vivid picture of said twin wearing her normal, cute, around the house clothes and wondering why Jess wasn't dressed the same and now she was locked in the bathroom.

"Just... milk it," Jess mumbled. She shifted to get a better grip, sliding her hand around the thick cock and attempting to squeeze it. Licking her lips, she tried jerking up and down, her motion spastic, unpracticed. Her eyes closed, which she guessed helped. But she almost immediately started picturing her sister, and the more she did, the faster she stroked, getting more and more wrapped up in it the longer and longer she went, till she could feel the cock swelling in her hand. Jess was totally unaware of anything else as she moaned and kicked slightly, her sister's name coming to her lips. She definitely wasn't aware of the fact that she'd forgotten to lock her shared bathroom, or that the door might very well be opening...

 

[NullRPs]

Jennifer sighed as she laid back in her bed, staring absentmindedly up at the ceiling, going over the day in her head. It started off like pretty much every other, she and her twin walking arm in arm to school, giggling and smiling as they talked about everything under the sun. Their parents, cute outfits that they should wear, boys who would try to get their attention, and when they'd eventually get rejected, try the other twin. It was always amusing when Jessica would put them in their place.

Jenny loved her sister. She couldn't imagine a single day without her, or rather, she preferred not to. They had been together all of their life, and the thought of them not being together when it was time for college made her anxious like nothing had before. She thought it'd be the same for her twin, but she didn't seem worried until they had started talking about it, seeming to want to talk about anything else. It must've upset her, she figured, when she disappeared for their lunch period, only to show up again for their last class.

Not wanting to ask where she went, and risk upsetting her again, Jen kept her thoughts to herself as they walked home together. It was obvious that their talk was still on her mind when they got home, though. During their chores, Jen would notice Jess staring at her while they worked, every once in awhile turning and flashing a small, cute smile at the girl. She figured that she was glaring at her for stressing her out, so she tried her best to just let her cool down a bit. It lasted through dinner though, and as soon as that ended, she was left alone with their parents at the dinner table, Jess excusing herself as soon as she was able.

"Maybe we don't need college." Jenny mumbled to herself, hands playing with the ends of her long, red hair, as she imagined her nearly perfect scores going to waste. College just seemed like such a smart move. It'd prepare them better for the world, but more importantly, it'd give them more time together, something she was desperate to get. She couldn't help but chew on her bottom lip as she continued to stress about the possibility of moving out without her twin, when she heard her name being called out.

Finally, Jess was done pouting! Or at least, that's what Jennifer thought, as she hopped off her bed, and made her way towards the door in her room that was connected to their shared bathroom, opening it with her usual adorable smile. She was three steps into the room when she saw her twin sitting on the floor, half naked, with her eyes closed in pleasure, the sight stopping her dead in her tracks. Covering her mouth, Jess couldn't help but watch for more than a few moments, shocked by what she was seeing. Thinking back on the day once again, Jessica's stares held an entirely different context. Was what she thought were glares actually lustful gazes, being driven by the.... thing now attached to her sister?

As she stood there, Jess moaned her name again, Jen's face flushing a bright red in response, as it seemed to click in her head what she was watching. Her sister masturbating, possibly to the thought of her. "J-Jess. Oh my god." She called out softly, trying her best not to scream, definitely not wanting their parents running up and checking on them. Turning her head, she tried not to stare, but she couldn't help but keep her sister in the corner of her eye, honestly wanting to find out more about the large appendage her twin was stroking. Last time they talked about boys, neither of them had went far enough to even see something like that, and now there was one attached to her sister. "I-Is that thing real? What happened to you?" She asked, concern in her voice as she turned to stare at her sister's cock, her cheeks blushing a bit brighter when she realized she was staring again. Looking away again, she grabbed the edge of her short, black skirt, her fingers playing with it nervously as she waited for her sister to respond, realizing she caught her completely off guard.

 

[darkest_fate]

So close... so close... just a little more and... and... Jess could feel her body tightening, this pressure building, feeling as if it would just shoot straight up and out of her cock and shower the bathroom floor with whatever she produced now. It would totally make a helluva mess, but at this point, Jess didn't give a damn about that. her entire world had become centered on the thing throbbing between her legs and underneath her fingers. Well, that and the prospect of sticking it into a hot little hole... preferably one that looked a helluva lot like Jess's.

Just a bit more and and... "J-Jess. Oh my god!" Jess jerked, feeling a little bit of cum drizzle out of the tip of her new cock. Horrified, panicked, she started trying to stuff the overhard cock back into her tight jeans. The girl whimpered as she tried to scramble to her feet, tuck away a cock that felt desperately aroused, and handle a conversation with her sister at the same time. "I can totally explain," she insisted, looking nervously at Jen. Her twin looked almost horrified, obviously trying not to look and obviously just as surprised as Jess was.

Real? "Oh yeah, it's definitely real," Jess said. She groaned, but finally managed to shove it inside her jeans, effectively tucking it against a leg. The hard cock showed pretty obviously, but at least it was mostly out of sight. Jess didn't dare try to fasten her pants though. "It's, uh, well, you remember how I kinda sorta signed up for that one experiment thing?" she said, letting out a nervous laugh and fidgeting, practically dancing on the spot. "Well, turns out that it was this weird, like, breeding experiment for lesbians thing. And they're...apparently making cocks?" she gave her sister a "whoda thunk" smile before shrugging. "So, uh, I have one now? It's cool: I'm just... I'll lock the door next time, I guess..."

She turned to the door, trailing off, hoping that Jen wouldn't pick up on the rather obvious detail: she'd clearly been masturbating to her.

 

[NullRPs]

Jen couldn't help but watch out of the corner of her eye as her twin scrambled to her feet in a panic, trying to fit her skinny jeans back on, with the added hassle of her new cock. A real cock as it turned out, the pained look on her face as she shoved it down the leg of her jeans making that much obvious, if she wasn't already explaining how she got it.

It was almost too strange to believe, until she said that she signed up for that shady experiment she saw in that ad, and ended up over her head. That was just like her. Jenny tried to just listen, and not lecture her like she would usually. She doubted that pointing that she warned her about the ad, or that she heard her moaning her name would be the best idea. Instead, she ignored the pounding of her heart in her chest, and did her best to stay calm. Honestly, it helped that her twin was much less calm, almost spinning in place, desperately looking for a way out.

Jen couldn't help but giggle quietly when her sister turned away, simply stating that she just has a cock now, and that she'd remember to lock the door next time, while looking like she was trying to steal a sausage by shoving it down her jeans. "Sorry" She apologized, covering her mouth and shaking her head. "It's just... how are you gonna hide that thing? Doesn't that hurt?" She asked, blushing slightly again as she glanced down at her cloth covered member, which looked like it would burst right through her jeans.

"Come here." Jennifer said suddenly, before grabbing Jess' hand and pulling her through the bathroom, and into her room without warning, letting her go once they were inside. Walking over to her dresser, she opened her drawers and started looking through them, trying to find something that her twin could wear, that wouldn't make her... erection so obvious. She paused for a moment as she thought about that. Her identical twin had an erection. Bending over, she started sorting through her bottom drawer, so wrapped up in what she was doing, she didn't notice how far over she was bending, and how much of her ass she was showing her sister. It didn't last that long though, soon standing back up with a few pieces of clothes, tossing them onto her bed, all except for a skirt, almost the same one she was wearing. "You don't think this will hide it, do you?" She asked, holding the skirt up to her hips, trying to see where the bulge would end up. "Here, try it on." She said simply, standing in front of her, waiting for her to drop her pants, like it were just another day of trying on eachother's clothes.

Within a couple seconds, she realized why Jess seemed hesitant, and a blush found it's way back onto her freckled cheeks. "O-Oh, I was watching, sorry." She said, before turning her back and going back to her dresser, pretending to look for more options for her to wear. "Just.. let me know how it fits..." She said with a nervous laugh as she waited for her twin to listen, if she would. She had just dragged her into her room without warning, right after she had walked in on her masturbating, she wouldn't blame her if she just ran back through the bathroom and into her own room. Still, she just stood there and waited, acting like she couldn't see her now that her back was turned, instead, watching her through the reflection in the mirror in the corner of her eye. She hoped she wasn't being obvious, but she really wanted a better look at the thing now attached to her sister, and she didn't think just saying 'hey sis, can I look at it' would work that well.

 

[darkest_fate]

Well look at that: Jess had fucked up and Jen was being all cool about it. It must be Tuesday. Except that on most Tuesdays, Jess's fucking up hadn't resulted in her body being altered in a very weird very obvious manner. At least Jen hadn't quite slid into "I told you so" mode yet. But of course she wouldn't: that would've been what Jess would've done if the shoe had been on the other foot. She kept squirming, trying to keep the painfully erect cock stored away.

"I had it hidden up till now, remember?" Jess shot back, looking over her shoulder while she worked on fastening her jeans now. "You totally wouldn't have even known something was up if you hadn't peeked," and yes, yes it did hurt. It hurt like hell. It hurt like nothing Jess had ever felt before, and Jess had felt a fair amount of hurt. The damn thing was already pushing out her jeans and she was sorely tempted to just ask to slink off into the bathroom and take care of it like most teenagers equipped with cocks would do.

Instead Jen grabbed her. Jess offered up a bit of a token protest before just giving up. She'd become one of Jen's projects, and that meant standing there and taking it and--oh my God. No way did Jen realize what she was doing right now. That bending over and that skirt and... oh hey, turned out that the cock could get harder and more painful. Every inch of that impressive phallus all but demanded that it get sheathed inside the tight redhead in front of her. And there was a skirt.

"A skirt," Jess said, taking it. "You do realize that there's a very good chance the thing just," she made a motion with her finger, indicating a rise. But she still ended up sighing and giving her sister a long look as the girl kept staring. Often they'd do this: use each other as mirrors and all. Technically Jess had a bit more muscle mass and a few more scars, but you couldn't really tell unless you were one of them.

"Yeah, gotta get used to your big-cocked sis," Jess said, letting out another nervous laugh. "You know, you could just--let me take care of it or--something," she mumbled as she tugged her pants down, knowing it wasn't going to work. Jen was involved; she'd be worried, would bother Jess until she knew. It did feel good to get the jeans off, and Jess kicked them away. the skirt didn't feel too bad being shifted up Jess's lean body either, though the massive erection did tent it out slightly. Jess tried to smooth it down, mumbling.

"I think we're gonna need to tape it down or something," she mumbled, flushing darkly and looking away. She thought she saw Jen... sneaking a peek or something? Well, it wasn't like either of them had ever seen one before...