Light My Fire [F/F][inc]

Long time smut writer who’s never actually posted any of them to reddit before. I figure I should start putting them here too!

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The snow had started falling heavier and heavier. It had been a particularly cold January and the world outside the house was a blanket of white. This had normally made the evenings peaceful and very quiet, but on this particular evening, lightning had been ripping through the sky followed closely by its thunderous partner. Lizzy was in her room huddled under a heavy comforter. Cozy in her flannel pajama pants and a sweatshirt that was several sizes too large for her. She’d been reading the books that would inevitably be assigned to be read once school was back in session, something her older sister Sara always mocked her for, but it had become harder to focus once the storm had started. It was not as though she was not afraid of lightning, something she’d claim until the day she died. She was after all, already sixteen. It just made her a little…uncomfortable. And sometimes when her room would light up and the thunder would boom so hard her windows shook, she’d let out little whimpers, but they were of surprise…certainly not of fear. Her thoughts on her lack of fear of the storm were interrupted as once more her room flashed bright as daylight, but this time, when the flash faded, everything was dark. She covered her mouth with her hand as the shriek of fear escaped her.

Sara sat back on her bed, resting against the headboard. The lightning did not bother her. Or rather, she could not hear it. Thick round noise canceling headphones sat over her ears as she bobbed her head with her music and idly browsed the internet, not really looking at anything in particular. She was combating the cold with her long blue robe draped over the leggings and tank top she wore underneath, as well as copious amounts of blankets. Her obliviousness to the world outside her bed suddenly ended when her room went dark. She took her headphones off and put her phone down and noticed for the first time just how hard it was storming outside. Clicking her tongue in annoyance she got up to see if the entire house had lost power.

Lizzy looked around her room somewhat nervously with the light of her phone. It was very quiet and she realized why nearly instantly. The dull background drone of the heater was gone, as the loss of power had shut everything off. “Oh fuck, I hope the power comes back or it’s going to get freezing,” she said aloud to herself. Normally she tried not to swear much but she was tense and her parents were on a ski trip that would last nearly the rest of the month so there was no real risk of being caught. She opened her door and stepped into the dark hall, hoping her sister Sara was still awake.

Sara opened her door and sighed in annoyance, the lights WERE out everywhere. She heard the door just down the hall open and saw her little sister walk out, engulfed in a huge sweatshirt. She turned to her and stated the obvious. “The lights are out Liz.”

Liz snorted faintly and said, “Yes thank you. I noticed.” Turning the light of her phone towards her sister, Liz was once more struck, as she had been many time before, with just how different the two of them looked. Six years older and in college, though back for winter break, Sara had always been tall and a lifetime of sports, any sport she could find really, had kept her fit and lean. At 5’9 compared to Liz’s 5’4, Liz had always found herself quite literally looking up to her sister. And Liz never had the taste for sports like Sara did. She was not overweight, she kept good track of her diet to ensure that, but her much more sedentary life of books and games had left her much…softer that her sister. Some of Liz’s friends had expressed jealousy with Liz’s thick thighs and hefty butt and chest, but Liz herself had never fully extinguished the tiny spark of jealousy she felt when she saw Sara’s sleek lines and tight, fit, frame in a sports bra and running tights heading out on her morning run. It was only their auburn hair and hazel brown eyes that really showed the relation. Though Liz kept hers fairly long and Sara had always cut hers short. “Oh!” Liz said, shifting her thoughts to more pressing matters. “We should probably get a fire going in the living room. Just in case the power takes a while to come back on.”

“That’s probably a good idea,” Sara agreed. She approached her sister and put a finger on her forehead pushing her back gently, “But I’LL start the fire. Who knows what you’d get up to?” Sara gave her a faux look of fear then smiled and headed downstairs to the living room. Liz pouted for a moment then followed. Sara nor her parents ever let her start the fire. All over an incident that had happened years ago and resulted in no more damage than a lot of soot everywhere. “I was like twelve,” she said, grumbling the whole way down the stairs. “And it’s not like anything ACTUALLY got burned or lit on fire or anything like that. I didn’t know the dumb flue was closed.”

“I can’t hear you over the sound of my trama,” Sara said deadpanned, already moving logs from beside the fireplace to the inside of it. As Liz sat down on the couch Sarah stopped for a moment and pulled a blanket off an armchair and handed it to Liz. “Here.”

“Thanks,” Liz said, wrapping herself up in the blanket and making herself comfortable.

Once she finished getting the fire going Sara rubbed her hands together. It was already getting a bit cold and the fire was only just starting to really heat the place up. “Let me in there greedy,” she said to Liz and muscled her way into the blanket as well. Liz was looking at her phone. “It looks like the power should not be out THAT long,” she said with relief in her voice.

“Good,” Sara answered. She realized she had forgotten her own phone upstairs, but was too warm and comfortable in the blanket now to want to go get it. There was a flash of lightning and suddenly she was being crushed in Liz’s grip as her sister clung to her. She smiled and shook her head. “God you have always been such a baby about that.” She extracted herself from the iron grip and moved so that Liz could sit between her legs and lean her back up against Sara’s chest. Sara put her arms over Liz’s shoulders and held her. “It’s just lightning you know.” She put her chin on the top of Liz’s head and continued. “We have a lightning rod, and ground wire. Even if lightning were to directly hit our house nothing would happen. And it would not directly hit our house because there are plenty of taller buildings close by. Aren’t you supposed to be the smart one? Why do I have to explain this to you?”

Liz decided that Sara’s warm body was worth the teasing though she did retort. “If I WAS afraid of lightning. And I’m not. Then it would be a phobia, and therefore, NOT a rational fear. Even if I do know how lighting works. That’s how phobias work.

Sara scoffed. “Not afraid of course.” She squeezed her thighs around Liz so she’d not be able to easily escape her grip and then moved her hands to her ribs and began to tickle her. “Not afraid of anything right?” Liz squirmed and thrashed managed to choke out various ways of staying “Stop” in between the laughing and thrashing. “Come on…quit it…seriously Sara…quit it…stop…” she thrashed more but Sara was easily able to hold her in place. She did however eventually stop. Liz slumped against her. “I hate that you know. Can’t you just hold me like a normal person so I don’t freeze?”

“I dunno, just felt like you could use the exercise.” Sara squeezed Liz’s thighs through the flannel pajama pants with her hands. Liz flushed. “That’s mean.”

“Oh don’t pout, you are adorable. Someone might even notice if you did not always wear such baggy clothes.”

“I don’t look good in anything.”

“You never wear anything your size, I mean look at these,” Sara reached under Liz’s sweatshirt and cupped her chest through her bra. “TRUST me, if you were wearing the right thing you’d look great.”

Liz was frozen in place, she was not even sure if she was remembering to breath. The room was starting to feel warm as the heat from the fire spread, but now she felt hot. Her face was flushed red and she hoped that Sara did not notice.

Sara noticed. “I mean if you put the right clothes on you could get any guy you wanted.” She did not take her hands off Liz chest.

“That’s. I mean I…I don’t really…” Liz continued to stammer not getting much out in the way of coherency.

“Or maybe not a guy…I mean I’ve seen those Japanese comics you keep under your bed.”

Liz’s heart stopped. Normally she kept them in a much safer place, hidden deep in her closet amongst school books, but since their parents had been gone, she’d not felt the need to be so secretive. Instead of the obvious question of why exactly Sara had been snooping through her room the only thing she could think to say was, “Don’t tell mom and dad please! They would freak!”

Liz could not see Sara’s face since she was facing forward away from her, so she missed the look of puzzled confusion. “Why on earth would I tell our parents that? You know how they are. Why do you still think I call Anna my roommate?”

“Wait…is Anna not your roommate?”

It was Sara’s turn to freeze now. But she did only for a few seconds before she burst out laughing. “Oh my god, my dear sweet dumb baby sister. No idiot, we’ve been dating for like three years.”
A serious of images began to run through Liz’s mind. Moments with her sister over years.

“Do you know where my old Buffy the Vampire Slayer DVDs went?” “Let’s stop at the drug store real fast I need a bunch of nail polish colors for June.” “Holy shit Gal Godot is hot in Wonder Woman.” “No I don’t rock climb. I don’t know I just have a lot of backpacks.” “Megan Rapinoe is like my idol.” “Have you seen She-ra yet, it’s really good.” “I dunno I just like true crime podcasts.” “I want a bunch of new ties for Christmas.”

Liz stared straight into the fire. “Oh.”

Sara laughed even harder. “God you read those anime girl lesbian books but never ever noticed? And, by the way, I thumbed through one. That was the weakest sex I’ve ever seen, I think the blue haired girl was trying to bore the pink haired girl into orgasm somehow.”

Liz felt an odd defensiveness rise up in her. “Mako-chan and Midori-chan are in love they don’t need to like…go crazy or anything.” She blushed again, she could not believe she was having this conversation.

“Spoiler, you can be in love and go crazy. In fact it’s even more fun. I could show you.” The last part of the sentence was added on so casually that it took Liz several seconds to even catch it.

“What?” she finally managed to get out.

“I said, if you are looking for a first time, trust me I know what I’m doing.” She squeezed Liz’s breasts, her hands never having left the entire conversation.

“We are sisters…” Liz said quitely.

“And you are cute, and I’ve seen you check out my ass before when I bend over, what of it?” Sara licked Liz’ earlobe.

Liz had felt like her heart had been stopped ever since Sara revealed she knew about the Yuri manga, but now her heart exploded into action, beating a thousand times a second.

“We can’t…”

“We can,” Sara deftly pushed her hands under Liz’s bra and squeezed her tits, at the same time moving her head forward and biting Liz’s shoulder. All the blood rushed out of Liz’s brain to other parts of her body.

Sara took advantage of Liz freezing up to put her thumbs on the younger girl’s nipples and rotate them gently. She continued to bite on Liz’s shoulder until it would JUST start to become painful and then pulled away. The love bite had left a pretty mark. Liz was still tense as Sarah worked her own legs under Liz’s so she could hook her ankles around Liz’s and start to gently pull her legs open. Liz tried to push against her sister’s legs but Sara was both stronger than her, and Sara was pretty sure the resistance was pretty halfhearted.

When Sara finally stopped playing with Liz’s tits, Liz realized her jaw hurt. She’d been clenching it. Taking advantage of this momentary reprieve as her sister pulled her hands way she said. “Come on Sara what on earth are you do…ahhhhhhhh.” The question degraded into a high pitched moan as Liz moved one hand into Sara’s pajama pants and pressed on her clit with an experienced hand.

“What I’m going to be doing, is you silly. Now shush.” Sara began to swirl finger fingers around, gently pressing on Liz’s clit as well as gliding around her folds. Liz had touched herself, but this was a thousand times that feeling. She realized she was thrusting her hips towards Sara’s contact but absolutely could not stop herself from doing so as she pressed her back against her older sister’s chest. “I’m going to…” she was cut off as Sara but two fingers to her lips.

“Shhh, you don’t need to tell me babe. Just cum for me.”

Something about Sara’s tone the way there was sort of…permission…built into it set Liz’s feelings aflame and she started to grind hard into her sisters hand no longer attempting any pretense of not enjoying it.

Sara was thrilled with how wet Liz was, she was very experienced so when you ended up with a partner who was not, it was fun to show them what sex really could be. Liz’s hips were bucking and Sara could sense she was close. She started to rotate her thumb around Liz’s clit, keeping up a steady and regular motion as Liz began to buck hard against her and Sara’s hand began to be splashed with juice as her little sister came against her fingers.

Liz road the orgasm out for a long time. She’d gotten herself off before, the Yuri comics hidden in her room often helped, but it had never been like this. When the rush of pleasure finally receded, panic started to take its place. “Sara we…” she was cut off as her sister put her finger to her lips.

“Shush,” Sara said. “I’m going to go get something, and you are going to wait right here for me. Do you understand?” The words were not harsh at all, but it was very clear that the question was purely rhetorical and would broker no answer other than “Yes.” So Liz simply nodded her head.

Sara kissed her cheek and said “Good girl,” which sent a shock of intense pleasure all through Liz’s body. As Sara got up and left, Liz was left with her thoughts. They were going a million miles a minute with no strong direction but she found that, despite all that, it was very easy to simply sit and do as her big sister told her. In fact, the more she thought about that…about how pleased Sara would be when she came back downstairs and found Liz right where she told her to be, the more her thighs started to get slick again.

Sara came back downstairs and as she stepped into the firelight Liz instantly saw what she had gone to get. A series of leather straps around her waist were supporting a large rainbow colored dildo. She had a small bottle of lube in her hand and was currently pouring it all over the strap-on cock, using her hands to make the whole thing slick. “Bend over the couch,” Sara said to her and Liz bit her lip at hearing that tone again. It was not a statement, or a question, or a request. It was an order. And Liz obeyed it. She’d never had anything larger than her fingers inside herself but she did not care and as Sara slid inside her with the toy she gripped the couch hard as mini orgasms took her. Sara leaned forward once she was fully bottomed out inside of Liz’s quivering pussy and kissed her neck and then whispered in her ear. “I’m not going to go easy on you just because you are my kid sister, do you understand?” Liz nodded her head and true to her word, Sara did not go easy on her.

Hours later Liz, warm, sore, and happier than she could ever remember being, was naked and snuggled up against Sara in Sara’s bed. Sara was on her phone again, scrolling the internet and listening to music but Liz had been more than happy to just hug her sister and absorb what had happened. She’d not spoken in a while but finally managed to open her mouth and ask a question she’d been wondering for a while now. “Hey Sara…” she waited for Sara to notice and look down at her, lifting one headphone off her ear as she did so she could hear her little sister.

“What’s up?” Sara asked in response.

“Well, can I sleep in here? With you tonight?”

“Mom and dad don’t get back for another three weeks, you’ll be sleeping in here every night until then.” Sara punctuated the statement by slapping Liz’s ass possessively. Liz squealed in delight. That was exactly what she’d hoped Sara would say.

Source: reddit.com/r/eroticliterature/comments/klj8sx/light_my_fire_ffinc