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“We’re going to what?” Lisa asked, suddenly incredulous at her sister’s suggestion. Despite them both still being completely naked, dripping wet with water and their own bodily fluids, Lisa’s mind was now alert with fear. It must have shown in her voice, because Alison’s face contorted with a cringe of regret or sympathy.
“I know what you’re going to say,” Alison soothed, reaching for a spare towel, “but we obviously can’t handle this on our own.”
Lisa’s thoughts raced in time with her pulse, quickening with something more than fear. “Why am I so scared, Ali?”
“I feel it, too,” her sister replied, trying and failing to wrap the towel around her newly swollen stomach. “It’s… whatever this is. It’s doing this. It doesn’t want us to tell anyone, or get help.”
“It?” Lisa asked distractedly, watching Alison’s belly slosh gently with every move she made. Alison had given up trying to cover herself with the towel and had resorted to simply wiping herself dry. Her breasts – now several cup sizes larger than they had been only hours ago – were almost big enough to rest atop her engorged abdomen, even when she was standing up.
Lisa’s arms didn’t drop so much as they gently drifted downwards, her modesty once again less important than her primal urges. Alison was either too focused on drying herself or purposely trying to ignore her. Lisa arched her back slightly, stretching out her midriff and taking a deep breath. This had the not-entirely-unintended side effect of emphasising her naked form, her breasts seemingly immune to gravity and – she noted with a rush of excitement – her cock already twitching with anticipation.
Alison threw the towel directly at Lisa’s head, plunging the room into dimly-underlit darkness, before continuing. “We can’t trust Dr. Miller, or at least not fully. She’s already lied to us… or at least, she’s not told us the whole truth. Something doesn’t seem right about her.”
An unexpected damp towel to the face was enough to jar Lisa back into temporary lucidity. The fear was back. “Couldn’t that just be… It? Affecting her, too?”
“Maybe,” Alison replied after a slight pause, moving out into the hallway to retrieve her scattered clothing from the stairs. “But that doesn’t change the fact that she has a motive of her own, at least when you – or maybe we – are around her.”
“But you think that she was telling the truth about Mum and Aunt Gemma?”
Alison’s footsteps echoed along with her voice as she moved further downstairs. “She can’t have made it all up on the spot. Plus, a lot of it sounds too similar to what’s happening to us.”
Lisa nodded to herself. Kirsty’s story had far too many holes in it for her liking, but she also hadn’t had time to fully process it. Her mind had been too addled by lust to think of anything but… but impregnating your sister.
Well, at least she was willing to admit it to herself. Alison seemed to be receptive to the idea now, too. She wondered idly, as she towelled her body, if either of them would have the ability to resist next time? She can’t just keep sucking me off… can she? Surely there had to be some sort of physical limit. I might not even give her the chance.
The thought thrilled her only slightly more than it frightened her, the two emotions only the first couple in a line that stretched backwards through her mind. Disgust, longing, dismay, confusion – her entire existence was being thrown into turmoil. But for now, she could focus. For how long was anyone’s guess.
Alison re-appeared at the top of the stairs, dressed as best she could. Her jeans would no longer zip up, let alone close, so Lisa could tell that she hadn’t bothered putting back on her no-doubt sodden underwear. Her once-baggy t-shirt, which had done a passable job of hiding her stomach earlier, was now stretched taut across her midriff. Her breasts, too, pressed against the thin fabric; nipples still erect from either excitement or cold. Clearly Lisa’s old bra no longer fit her, either.
“I put another load of washing on with our, uh… more soiled items?” she said, tossing Lisa an armful of clothes. “But I think I’ll need to borrow one of your newer bras.”
Lisa hadn’t bothered trying to catch what Alison had thrown, but took the time to look back and forth between her sister’s tits and her own. Fuck me, we’re almost the same size…
“Lise?” Alison asked, a hint of concern in her voice.
“You’re sure you aren’t in any pain?”
“Oh, no,” came the reply, all traces of caution gone. “No, I promise I’m fine. Whatever this is, I am apparently now extremely strrretchyyyy,” Alison drawled, shaking her abdomen with the elongation of her final word. She quickly stopped with a sharp clearing of her throat.
Lisa felt her crotch react again and tried to put the thoughts to one side, with moderate success. “Kirsty knew us from the second we turned up at her door,” she said, trying to keep her focus. “Which bursa escort means she must have known Mum and Aunt Gemma. Do you really think that they’re like us?”
“If anything, we’d be like them,” Alison replied, shifting her weight from one leg to another, clearly unaccustomed to her extra girth. “Either way, we need to tell Mum about us. Tell them both, maybe.”
“If what Kirsty said was true, then… then maybe they know how to control this?”
“I certainly don’t remember either of them ripping the clothes off one another,” Alison smirked. She seemed almost tipsy to Lisa’s eyes.
“But what will she… what will they think of us? Doing what we’ve done?”
Alison’s smile disappeared as quickly as it had arrived, replaced with the more recently familiar genuine concern. “Hey… if half of what Kirsty said was true… they might understand better than anyone else.”
Lisa nodded again, then moved to wrap herself in the towel. Half of her growled in frustration, but she could wrestle those feelings for now. Modesty back in place, she picked up her dress and bra and looked up towards her sister.
“You good?” Alison asked, her words almost as pregnant as she looked. In two words, she managed to convey everything from ‘Can you control your lust, at least for now?’ and ‘Are there any other changes going on that you need to tell me about?’, all the way through to ‘I’m sorry that it’s come to this – are you ready to call our mum and tell her?’.
“I think so,” Lisa replied, hoping she’d answered all of Alison’s questions.
“Alright. Get dressed and meet me downstairs when you’re ready.”
“Oh, wait a second,” Lisa blurted, scampering past her sister and into her room. Opening her chest of drawers, she quickly ruffled through a few undergarments until she found what she was looking for. Returning to the hallway, she presented Alison with a black, lacy bra. “For you. It’s a little too small for me.”
“It looks brand new,” Alison remarked.
“Yeah, well, I sort of bought it because it was a bit small. To make the girls look even bigger? I just could never bring myself to actually wear it.”
They shared a smile as Alison took the bra from Lisa. “I’ll put it on when I get downstairs. I’ll see you in a minute?”
“Yeah,” Lisa replied, heading back into her room and closing the door.
–
Alison plodded down the stairs again. She tried to think of a better word to describe the movement, but plodding was the best she could come up with, time and again. She felt almost inebriated, both in her thoughts and movements. She was nowhere near as heavy as an actual pregnant woman would be, but she still felt unnaturally hefty. Which of course she was, being filled with what must be literal gallons of semen, produced from her twin sister’s apparently limitless internal testicles and insatiable new penis.
The thought of it was no less absurd than it had been last night, or earlier that day. Three times now. Three times she’d had Lisa’s cum on or in her. She knew, without the slightest doubt, that it wouldn’t be limited to just three times, either. Every drop seemed to change her, both physically and mentally. Last night, she knew that even the thought of what was happening would have made her retch. Now, she was almost comfortable with the reality of what she was suggesting: sooner or later, you’re going to fuck your sister, and let her cum inside you for real.
“Not if I can help it,” she muttered to herself. She still had the sense to know that those feelings were wrong. Or that they should be wrong. At least, society says they’re wrong. Though she was pretty sure society was less clear on the whole twin sister grows cock and produces ungodly amounts of cum side of things.
Moving into the kitchen, Alison peeled her now skin-tight t-shirt off, letting her breasts bounce in their temporary freedom. She tried and failed to resist hefting them in her hands. She also failed to refute how good they felt being this size.
Not for the first time, she wished that she could have a version of herself to talk to that had been completely unaffected by the last day or so. Someone with whom she could converse completely honestly; explain her deepest feelings and emotions to. To try and determine how much of her new thoughts were her, and how much was It.
“It needs a name,” she said, fastening Lisa’s bra under her newly engorged boobs and atop her now massive abdomen. “F.U.T.A. doesn’t cut it.”
Grunting slightly with the effort, she shrugged herself into her new undergarment and then leaned back against the kitchen counter. It fit almost perfectly, showing just how far she’d come from her relatively flat-chested normality. How big was Lise again? E? Double E? Alison checked the tag at the side of the bra. “Fuck me, double D? I was barely a B!”
“You say something?” Lisa called from upstairs, the sound of her moving around in bursa eskort her room confirming she was still getting changed.
“Just talking to myself!” Alison replied, grabbing her t-shirt and forcing it back onto her body. Though her breasts seemed to share Lisa’s pertness, they now had the added shapeliness of the bra’s design. I could get used to having cleavage.
She turned to the challenge of getting her jeans to close. They were designed to fasten below the waist – hell, it was the only way she’d managed to keep them on until now – but that was no longer possible. Her swollen stomach was now affecting the size of her hips, too; something about the way her faux-pregnancy sat? Or is my ass getting bigger, too? She hadn’t even considered the possibility.
She’d come downstairs to rustle through the dried clothes from this morning’s wash. In there, she found some clean panties and – after a quick search – the pair of leggings she’d been looking for. Elasticated and already a size or two larger than needed, she often wore them for lounging around the house, or when she didn’t want to look like she was just in her pyjamas.
Discarding her jeans, Alison put on her underwear. Still seem to fit OK? Next were the leggings, which were thankfully able to accommodate her newfound girth. For now.
She sat down in the kitchen, lost in her thoughts for what must have been ten or fifteen minutes. The sound of the door to Lisa’s room opening and closing caught Alison’s attention. Fuck, how long… is she OK?! A few seconds later, Lisa pattered down the stairs, her dress almost billowing around her as she descended. Alison felt her heart jump in her chest; a little shot of adrenaline and attraction.
“Hey!” Lisa exclaimed, her cheeks already flushing.
“Jesus,” Alison sighed, bowing forwards on the chair as far as her new shape would allow, closing her eyes and rubbing her forehead with her fingertips.
“Yeah, I know,” Lisa responded, no further words needed. They both knew how the other felt now. Whatever urges Alison had, Lisa was no doubt the mirror of them. It was only a matter of time; a question of which of their resolves would buckle first. “Figured I’d put on another dress, since the one I was wearing was a bit, uh…”
“Yeah,” Alison interjected. Lisa’s new dress was still light and billowy enough to hide anything happening down below, but it was noticeably tighter across the top half. Alison knew that her sister wouldn’t have done so on purpose, but her choice of clothing wasn’t making this any easier. “I’m going to grab my phone from the car.”
“I’ll wait here,” Lisa smiled awkwardly.
Alison walked out of the house; the door still wide open from earlier. She hadn’t even bothered to lock her car. Bit busy at the time. Retrieving her phone from the little nook in the centre console, she walked back into the kitchen. Holding her phone in her outstretched arm, she pulled up the contact: Mum.
“You’re sure this is the right idea?” Lisa asked, her nervousness blatant in the tremor of her voice.
Alison’s eyes flicked up and down her sister’s body. She could see Lisa doing the same to her, and knew that their expressions wouldn’t be too dissimilar. Flushed, wide-eyed and with a growing hunger for one another already. As her answer, Alison set her face in grim determination and hit dial, putting the call on speakerphone.
Minerva picked up within a few rings; the background noise indicated that she was in a car. “Hey you,” she said light-heartedly, “what’s up?”
Alison’s throat was suddenly dry. “Hey Mum,” she croaked, before recovering. “You free to talk?”
“Sure, hon. Your Aunt Gemma and I are just finished at the gallery; she’s driving me back to her place now.”
Alison took a deep breath to calm herself. Lisa had begun walking in a small, frantic circle. “Something’s… wrong with Lisa. And with me.”
“Aww, not the flu again?” Minerva asked with motherly sympathy, before adding a little more sharply, “You’d better not have given it to me this time!”
Alison heard her Aunt Gemma giggle in the background, with her Mum sharing in the mirth immediately afterwards. “Mum, we…”
“It’s fine, I’ve got plenty of painkillers and decongestants tucked away somewhere, and I’ll pick you both up some chicken soup when I come home tomorrow!”
“No, Mum, it’s not the flu,” Alison pressed on, her persistence and energy faltering. “It’s… she’s… we’ve both… changed…”
Minerva’s laughter stopped abruptly, and her voice took on a steely edge. “Alison, what’s going on?”
“It’s Lisa, she’s…” Alison stuttered, her words coming tumbling out in disorder. “It was just her first, but then me? And last night. Don’t worry, we didn’t, I mean we couldn’t… but now we need to, or just really want…? And it’s so hard, Mum, we can’t-“
“Alison, slow down,” her mum soothed through the stammering, until Alison eventually stopped. “Take a deep breath and tell me exactly what’s happened.”
“I… I don’t even know how to say…”
“Mum, I grew a penis,” Lisa exclaimed, loud enough for Minerva to hear.
Several seconds of silence passed. Lisa had her hands pressed over her mouth, as if she couldn’t believe what she’d just said. Alison stood there, phone held firmly in her hand, frozen.
Then Minerva’s voice broke the dark reverie. “Gem, it’s happened, we need to get to mine right now.”
In the background, Alison heard the sound of heavy braking; the screech of tires, loose items rattling in the car, Gemma swearing. “Mum?”
“Am I on loudspeaker?” Minerva asked, her voice taking the same tone she’d used back when they were little and in trouble.
“Yes,” Lisa answered, her expression one of deer in headlights, looking shocked that she’d been able to say another word.
“Both of you,” Minerva intoned firmly, a call to attention, “I need you to focus and answer all of my questions. Do you understand?”
Oh god, Kirsty was telling the truth! “We… yes…” Alison replied.
“I’ll try,” Lisa added meekly.
“First, tell me exactly what happened,” Minerva said, her voice betraying only the faintest hint of panic.
“I woke up last night feeling weird… down there… and I went to the bathroom to see properly… and it was there and real and… and hard…” Lisa stammered.
“It was before sunrise,” Alison added, trying to keep from getting distracted. “I heard Lisa making noises and it woke me up. I went to see if she was OK, and then a few minutes later she came to my room and showed me what was going on.”
“Alison, why didn’t you tell-” Minerva started, before cutting herself off mid-sentence. “No, that doesn’t matter right now. Is that all that’s happened?”
Lisa’s hands covered her face, blushing a deep crimson, her hair loosely draping across her arms as she tried to hide her disbelief at the conversation they were having. Alison shared her feelings of awkwardness, but they needed to be honest. If they’re going to help, they need to know what’s really happened.
“She was… trying to make it go down,” Alison said, the implied meaning obvious in the tone of her voice. “But for some reason she couldn’t do it herself.”
“That doesn’t…” Minerva trailed off, before continuing, “Gem, have you ever had that?”
“No,” came Gemma’s terse reply. Their aunt was clearly focusing on driving – Alison could empathise with her efforts.
“Are you sure you weren’t just nervous, or…” their mother asked, suddenly unsure of herself.
“I couldn’t cum without Ali touching me, Mum,” Lisa blurted, her voice muffled by her hands. A few seconds of silence followed. It felt like the conversation had crossed an unspoken line and reached a new level of… of what? Depravity?
“Lisa, have you and Alison…” Minerva asked carefully.
Alison didn’t need to wait for the rest of the sentence. “I’ve helped her cum a few times. But just with my hands… and mouth…” Now it was Alison’s turn to feel her cheeks burning with embarrassment.
“Gem, we need to get there right now,” Minerva said with renewed intensity.
“Minnie, I am breaking literally every traffic law possible here,” came the frenzied response, accompanied by additional engine revving.
“I’m sorry, Mum,” Lisa apologised softly. “We… I should have said something straight away, but we thought…”
“Lisa, it’s OK, honey!” Minerva soothed; her voice still strained with the barely concealed panic. “We just thought this wasn’t going to happen to you!”
Alison clocked the unspoken admission in what her mother had just said. “So Dr. Miller was telling the truth?”
“Did she say Miller?!” Gemma exclaimed on the other end of the phone. “That fucking succubus, I knew she’d have her god-damn talons in amongst this!”
“Alison, how do you know Kirsty?” Minerva asked, the panic no longer constrained. “What have… did she…?”
“Minnie, focus!” Gemma barked. “There’ll be time for that later. We need to know what’s going on now.”
“Right, yes,” Minerva agreed, calming down once again. When she spoke next, her voice was level and measured. “Girls, I need you to drop any notion of what is proper; any conception of what you would discuss in polite company, or say to your mother. OK?”
Neither Alison or Lisa answered, but the silence was all the confirmation needed. Lisa continued to blush, but her hands had dropped back to her sides. She moved to sit in one of the chairs in the kitchen, while Alison remained standing, leaning against the countertop.
“Alison, has Lisa cum inside you?” Minerva asked. Even though she’d been expecting the question, actually hearing the words caused Alison’s heart to do a quick somersault in her chest.
“Just down my throat,” Alison replied, as steadily as she could manage. “Twice.” Her thoughts were still a jumble. “My stomach is really, really swollen, but it doesn’t hurt.”
“We might not be too late,” Gemma said, grim determination in her voice as she wrestled the car closer to their destination.
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