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Your Fault	By : MTL Category: M through R > Modern Family Views: 46961 -:- Recommendations : 1 -:- Currently Reading : 1
Disclaimer: I do not own Modern Family and have no association with anyone involved in the show. I do not make any money from the writing of this story.

Chapter List
- 6
- 7
- 8
"Are you sure you're up for this?"
Alex Dunphy blinked a few times, then replied to her sister. "Yeah, why?"
"Nothing." Haley lied, before admitting, "It's just, you look a little nervous."
"Well, duh." Alex replied, before bringing her hand up to her face, "Oh God, I'm turning into you."
Ignoring that comment Haley smiled softly and stepped closer to her sibling, "Hey, it's okay to be nervous, especially for a first time."
"You think I don't know that?" Alex snapped.
"Hey, I was just trying to make you feel better." Haley huffed, before smiling wickedly and taking another step forward, "Speaking of which, we don't have to do this, you know? I'm very happy with things being the way they are."
"I know." Alex rolled her eyes, "But it's high time I taught you a lesson in humility."
"This again." Haley rolled her eyes, and then cutting her sister off before she could speak again, "I'm sorry Alex, I really am, but it's your fault. You're just so hot, I-."
"I know, I know, you just can't control yourself." Alex huffed, before stepping closer, "But it's my 18th and tonight I'm in charge. You promised."
"I did." Haley smiled, "So again, do your worst."
Finally closing the space between them completely Alex rhetorically asked, "Let's just start out with something simple, shall we?"
Haley smiled in reply and allowed Alex to pull her into a gentle kiss. Too gentle if you ask her. They barely got to see each other now that Alex was in college, and Alex had insisted on spending most of the day with their family. Which was nice, but obviously they couldn't touch each other when anyone was looking, or do anything except pretend they still hated each other, when the truth was they hadn't been able to keep their hands off each other since Alex had transformed into this ridiculously voluptuous hottie. So Haley thought it was understandable she wasn't in the mood for gentle.
The problem was she hadn't been in the mood for gentle for a long time. Honestly since before Alex moved away, and now Haley's lack of time with her little sister's big boobs, tasty little pussy and big fat ass was driving her crazy. Last night when Alex finally got home she barely had a chance to say hello to everyone before Haley was dragging her upstairs, literally tearing her clothes off and ravaging her body. After that it only seemed fair to finally let Alex have a turn at being on top, which was something they had been talking about doing for over a year now but never got around to because Haley was just so obsessed with fucking her baby sister. Last night she hadn't even sat on Alex's face, instead choosing to get off from the stimulator inside her strap-on and the sheer joy of using it to sodomise her little sister.
Remembering their latest butt fuck, not including the fingering this morning, made Haley ache to take control again, but she had made a promise and forced herself to remain relaxed as Alex gently kissed her and began pulling off her clothes. Haley tried to do the same to Alex just as slowly, but of course the second her baby sister's bra hit the floor Haley just couldn't resist sliding both her hands to those ridiculously big tits and begin fondling them. Normally Alex would just moan and continue the kiss, and as the first part quickly happened Haley hope that the second part would too.
Alas Alex broke the kiss and scolded her, "Hey, it's my turn to have my way with your body, remember?"
Haley opened her mouth to protest, but when Alex gave her a look she pouted, "Spoilsport."
For a second Alex gave her another unimpressed look, even as she took her hands off her tits and rubbed her side soothingly. Then Alex kissed her again, proving that she couldn't have been that mad. Especially as Alex next action was to start undoing her pants, Haley eagerly following suit and soon enough both sisters were completely naked and their kiss was becoming increasingly heated. Then Alex gently pushed Haley backwards and then lowered her down onto her bed and got on top of her without breaking the kiss, a move they had done 1000 times only with Haley as the aggressor. It seemed that Alex was over her nervousness, which was a very good thing for both of them.
Only that wasn't true. Alex was still extremely nervous, she was just doing a good job at hiding it. Then again for over a year Alex had been trying new things with Haley, and that was often nerve racking, but very rewarding and this was shaping up to be no different. True, it wasn't like she'd never physically been on top of Haley before, or taken the time to worship her big sister's body, but at the same time this was so different because she was actually in control. Haley had actually given up control and was finally going to let Alex do whatever she wanted, even if that was some very familiar stuff at first.
The familiarity of it definitely helped Alex's nerves, as did the fact that she was just kissing her sister. Mostly on the lips, but all over her body was also good. Like her neck. Alex having lost count of the number of times that Haley had given her a hickey when she wasn't supposed too, forcing her to come up with some lame excuse to explain it. Well now it was payback time, Alex barely taking a breath when she finally broke the kiss with Haley before she started attacking her sibling's neck, covering it with kisses, licks, sucks and most importantly bites. Let's see her explain this. Actually Haley was a phenomenal liar, and Alex had no doubt she would come up with something for this, her main reason for doing this more to tease her big sister then anything.
Which worked a little too well, Haley soon whimpering, "Please Alex, lower."
Rolling her eyes Alex then smiled as she lifted her mouth up to Haley's ear, "But I've barely started yet."
"Alex!" Haley whined, "I don't tease you this bad!"
"Yes, you do." Alex pointed out more than a little crossly.
"Not before I've reached your boobs!" Haley argued.
There was a long pause and then Alex huffed, "Fine!"
Alex then aggressively kissed her way down Haley's body, only giving her chest a few kisses before taking one of her big sister's little nipples into her mouth and biting down on it almost hard enough to break the skin. Typically that just made Haley cry out in delight, followed by a long moan as Alex swirled her tongue around that nipple and then sucked it. She then did the same to the other nipple with the same result. In fact, no matter what she did for the next few minutes everything she did only got a positive response out of Haley, which was annoying as it was arousing. But that was okay. Alex could wait.
Sure enough Haley's moans, groans, whimpers and cries suddenly turned from pure pleasure to a mixture of pleasure and frustration and then to pure frustration. After that Haley continuously whined for her to go lower, and even aggressively pushed down on Alex's head. With the former Alex simply ignored her. With the latter Alex slapped her hand away and then angrily stared at Haley until she whimpered and then lowered her head in submission before going back to pleading for mercy. This may seem cruel, but it was payback for all those times Haley had done this to her, and honestly Alex felt that her big sister's perfectly sized boobs deserved some of the kind of attention that Haley gave her really big boobs all the time.
"Alex please, oooooooooooh stop, stop teasing me." Haley whimpered pretty much on a continuous loop, the only difference being the order in which she said these things, and when she stopped to moan and cry out, "I, I can't take it anymore. I swear I'm going to explode. Aaaaaaaaaaaahhhhhhhhhhh Gawwwwwwwwwwwd, why do you have to be so mean? I've never been this mean to you! Please, mmmmmmmmmm, please, just fuck me! Please? I swear I'll do anything if you just finger me a little. I, ohhhhhhhhhhhh Gooooooooooodddddddddddd, just fucking fuck me! Please? Oh fuck! Ooooooooooooohhhhhhhhhhhhh fuck!"
Haley begged, whined and threatened Alex for what felt like an eternity, and nothing she said made a difference. It was like the worst thing to ever happen. Like, ever. Fine, at least to her. Still, it was torture. Then finally, finally Alex kissed her way down her body. She was as slow as possible about it, and for a horrible couple of seconds Haley thought that Alex was going to ignore her pussy, which admittedly Haley had done plenty of times in the past when the shoe was on the other foot, but that wasn't the point. The point was that it would be cruel for Alex to do that now, and thankfully she didn't, although she still didn't get to her destination as fast as Haley would have liked.
When she got there though Haley couldn't complain as because of all the build-up the first lick that her baby sister gave her made her feel like she was going to cum. Unfortunately she didn't, but it still felt amazing, Haley crying out and arching up so she was smashing her pelvis into Alex's face. For a moment Haley was worried about repercussions, but thankfully her little sister just kept licking her pussy like the good little cunt lapper she was. Only that became a problem in itself, Alex choosing to keep her licks as long and slow as possible, which was fine to start with but quickly became as long and tortuous as the tittie torture.
The difference was that Haley tried to remain patient this time and really allow Alex to have her way with her, mostly because at least now they were finally having sex, which was obviously way more satisfying than the boob worship. Besides, those first few licks felt almost orgasmicly good, a sensation Haley became very familiar with as she was kept on what felt like the edge of climax for an eternity. Double eternity? Was that a thing? Because this felt twice as long as the eternity Alex had licked, sucked and nibbled on her tits, and while it also offered up no release at least the pleasure was more satisfying.
It was only a matter of time before she would break and begged for more. Haley knew that. But she owed it to Alex to keep her mouth shut for as long as she could, even if that meant shoving a pillow over her face to keep herself quiet. She also owed it to herself. Haley couldn't even remember the last time she let Alex give her a nice long pussy licking. Mostly Haley just sat on her kid sister's face, riding it hard and smothering Alex until she could cum in her face and in her mouth. Well, actually Haley mostly pounded her little sister's big butt with her strap-on cock, Haley so addicted to that fat ass that lately she had mostly been getting off on just that, so this was a nice change of pace.
Alex loved getting her butt pounded by her big sister as much as Haley loved pounding her butt. Arguably more considering she was the one who squirted from it. And she definitely loved Haley sitting on her face and grinding her yummy pussy into her face. But there was just something special about being able to take her time with Haley's pussy, and worship her body before that, and like her sibling Alex couldn't remember the last time she had given this amazing body the attention it deserved. It may not have been since their second time together, or shortly thereafter, as Haley had become increasingly aggressive every time they had sex.
Now things were different. Now Alex was in charge, and she fully intended to give Haley a full dose of her own medicine. But not tonight. No, tonight she would concentrate on giving this amazing body the attention it deserved, and perhaps more importantly tease Haley as badly as she had teased her. Ideally worse. And Alex wasn't talking about verbal jabs, because even as her big sister's submissive slut Alex had been able to give as good as she got in that regard. No, she meant sexually tease, which Alex did gleefully, keeping her licks long and slow, and taking a long time to touch Haley's clit, and even then it was gentle and brief.
Those constant gentle laps of her tongue had Haley whimpering, gasping, groaning and crying out in a mixture of pleasure and frustration, although it increasingly became the latter as time ticked by. Not that Alex felt sorry for Haley. No, this was exactly what the bitch deserve. And more, Alex smiling dreamily as she thought about all the wicked things she was going to do to her big sister in the name of revenge. The most important of course being to fuck Haley's tight little ass, Alex almost overwhelmed with the desire to flip her sister over, grab their strap-on and brutally sodomise her right here and now. But no, Alex was determined to make this first time she was in charge about lovemaking. Then they would have butt sex. Lots and lots of butt sex.
"Alex please." Haley whimpered, awaking Alex from her naughty thoughts, "Please... more... I, mmmmmmmmm, I need, oh God, I need you to fuck me. Ohhhhhhhhh, please sis, fuck me with your little dyke tongue. I need it sooooooooooo bad! Ooooooooooh fuck, please, please, please, please, please do something! Anything! Oh fuck, please Alex, just give me more!"
Honestly Alex was impressed that it took this long for Haley to start begging for more. Impatience was practically her middle name, so she must have been trying to really give Alex what she wanted to wait it out for this long. In a twisted way that warmed Alex's heart, and convinced her to give Haley a little more in the form of touching her clit with almost every lick, followed by every lick, instead of every other lick. Which of course was nowhere near enough for Haley, but she was just going to have to put up with it for a little while, because after all the teasing she had done to Alex this was definitely what Haley deserved.
Haley didn't believe anyone deserved this kind of agonising pleasure, as she wasn't a sadistic bitch. Or maybe she was considering she had done this exact same thing to Alex countless times. Oh God, how could Haley claim to be in love with Alex after doing this to her so many times? No wonder Alex had been so grumpy with her lately. If Haley was the one getting this kind of treatment more often she'd be grumpy too. Or not, because there was no way she could have put up with this for so long, Haley becoming increasingly aggressive with her words as Alex continued to deny her.
"FUCK ME GOD DAMMIT!" Haley snapped as loudly as she dared, quickly lowering her voice as she added, "Please Alex, just a little more? Mmmmmmmm, that's sooooooooo nice, but seriously, I need more. Ooooooooooh yes, I need your little dyke tongue in my gay girl pussy. Oh fuck Alex, I'm so gay for you. You're so ridiculously hot you turned my super straight cunt into a gay pussy that just can't get enough of girl tongue. Ohhhhhhhhh fuck yeah, and you turned me into a sister fucking slut who's addicted to your tongue inside her. Oooooooooh, please Alex, please put your tongue inside me. I need it inside me more than fucking air. I NEED it. Please, ohhhhhhhhhhhh, stop being so cruel and give it to me! Give me your tongue little sister or I swear to God I'll fucking tell everyone about us. Yeahhhhhhhhhh, I'll tell everyone we're a couple of sister fuckers if you don't fuck me right now! DO IT ALEX! I'm serious, I'll-"
"Shut up and put a pillow over your face!" Alex told her as she oh so briefly removed her tongue from Haley's cunt before quickly returning to it.
Without even considering any kind of comeback Haley scramble to grab the pillow her head was lying on and shove it over her face. The whole thing only took a couple of seconds, but it felt like a lifetime as Alex returned to the gentle pussy licking instead of giving Haley what she so desperately wanted. Then Haley whimpered into the pillow as initially the only change was that Alex picked up the pace of the cunt lapping. Fortunately before Haley seriously considered pulling the pillow off her face and complaining Alex pressed her tongue against her entrance, making Haley softly whimper again before a long soft cry escaped her lips as finally Alex pushed her tongue inside her.
She did it as slowly as humanly possible, but that was fine with Haley because it still meant she got more intense pleasure than before and for a few moments that was enough. It may not have been if it was anyone other than her baby sister, but as it was she just happily moaned into the pillow as she was gently entered. That continued to be the cases Alex pushed her tongue as deep as it could go into her pussy and then gently started fucking her, quickly bringing Haley to the edge of orgasm. That was when Haley whimpered in dissatisfaction again, as it felt like she just couldn't survive more teasing, and yet she was beyond the point she could talk coherently. Or at least without letting the whole neighbourhood know she was getting tongue fucked by her kid sister.
Luckily for Haley the girl who claimed to be in love with her was finally willing to show her some mercy, Alex only having to pick up the pace of the tongue fucking a little to give her sister one of the best orgasms of her life. And considering all the amazing sex she'd had with Alex that was really saying something. It made Haley instantly regret not allowing Alex to slowly make love to her this way more often, and promising herself that she would make sure it happened more often. Especially as then Alex made her cum over and over again, each climax almost as powerful as that first one, her little sister seeming to enjoy it almost as much as she was.
Alex had the exact same thought. Because sure, Haley might be the one cumming in her mouth, but as much as Alex loved it when these roles were reversed, and she was very familiar with it, she definitely preferred being the one making the other cum. At least when it came to oral sex. When it came to sex in general nothing beat cumming with a nice big toy up her ass, but that was just because deep down Alex was first and foremost a greedy anal slut. But making her big sister cum in her mouth was a very close second, partly because deep down Alex just preferred being the bottom, mostly because she was addicted to the taste of Haley's cum.
There was no taste in the world which could compete with the taste of her big sister's cum. Well, maybe her own butt juice, Alex thought with a blush, as she had grown to dearly love going ass to mouth ever since Haley had first made her do it during the first of many double dates with her sibling's ex-boyfriends, who acted as their beards. Although at this moment Alex certainly felt that Haley's cum had the edge, Alex pulling her tongue out of her older sister's pussy so she glue her mouth to Haley's cunt and allow at least the majority of that heavenly liquid to flow directly into her mouth, down her throat and into her belly where it belonged.
When Haley's initial climax was over Alex quickly inserted her tongue back into her elder sibling and restarted the tongue fucking, this time making sure her thrusts were hard and deep right from the get go. As a result she quickly made Haley cum again, and again, and again, although the more she came the more Haley thrust into, and grinded on, Alex's face, making it hard for her to swallow even the majority of her big sister's cum. Although having that heavenly liquid cover her face had always been an amazing consolation prize, because she would get at least the majority of it later it felt like Haley was marking Alex as what she truly was, hers.
Only for right now Haley was truly just as much hers as she was Haley's, Alex never feeling more powerful than when she had her usually dominant sister writhing helplessly underneath her knowing mouth and tongue. This became especially true when Alex added her fingers into the mix, reluctantly pulling her tongue out of Haley's twat and replacing it with one and then two fingers while sucking on Haley's clit. As always this made sure Haley continues to cum hard, and this time it wasn't her choice when Alex stopped, and for a while, the younger of the two siblings was tempted to just keep going until the other girl passed out from pleasure. However Alex had other plans for her precious sister/lover.
Haley whimpered in disappointment as her little sister pulled her fingers out of her pussy and moved up her body, but it was probably a good thing because she seriously needed a break otherwise she would probably pass out. Seeing Alex's face coated with her cum didn't help, but then Alex copied one of Haley's moves and pushed her cum covered fingers into Haley's mouth, causing the older sibling to moan softly as she tasted herself. Then of course Haley began sucking those fingers clean, gently at first but quickly becoming greedy as the taste of her own cum re-energised her, or at least filled her with adrenaline.
Once those fingers were thoroughly cleaned Alex completed the move by taking those fingers out of Haley's mouth and replacing them with her tongue, the big sister eagerly welcoming the little sister's tongue into her mouth and then frantically sucked it clean. Then she pushed her tongue into Alex's mouth in search of more of her cum and pussy cream, Haley easily finding it and keeping most of it for herself. She then broke the kiss to lick Alex's face, causing her younger sibling to giggle. Then she kissed Alex again, this time sharing the juices she had collected, while of course making sure to leave at least some of her cum and cunt cream on her baby sister's face.
After a few more minutes of passionate kissing Alex broke the lip lock and asked breathlessly, "You ready to get strap-on fucked sis?"
"By you? Fuck yeah!" Haley grinned, "Mmmmmm, go on Alex, strap on a big cock and fuck my tight little pussy. Fuck me like I've been fucking you."
This response made Alex giggle softly, give Haley a peck on the lips and then she got off of her. Haley instantly missed the weight of Alex on top of her, but the trade-off was worth it to admire her little sister's incredibly hot body. Especially that big juicy booty that Haley would never be able to get enough of, the big sister having to bite her lip as she imagined herself quickly grabbing their strap-on, bending her little sister over and fucking Alex's big fat ass so hard it made those meaty cheeks jiggle like a bowl of jelly in an earthquake. Which was what she'd been doing nearly non-stop for over a year now, and even though Haley had promised Alex revenge tonight it was never more difficult for her to let her kid sister top her.
Luckily for them both Alex was fully aware of Haley's obsession with her big butt, and turned around as soon as possible so she was facing her again. Which just meant that Haley got distracted by Alex's huge tits, but while Haley was busy imagining sucking on her little sister's big boobs Alex got the chance to step into the harness, pull it up her thighs and then tighten it around her waist. By the time Alex was fully equipped Haley's dominant thoughts were pretty much gone in favour of wanting to worship her baby sister's body again, which meant she was in the right mind-set for what came next.
"You still want to get fucked?" Alex teased.
Haley grinned, "You know I do."
"Then come and get me ready." Alex grinned back, "You say I'm in charge tonight? Prove it! Prove it by getting down on your knees in front of me and sucking MY cock."
"Oh Alex, you want me to suck your cock?" Haley giggled, her eyes bright as she got off of the bed and slowly made her way to her baby sister, "You want me to put my mouth on your cock and suck it? Become your little cock sucker? Huh? Is that what you want? You want me to be your cock sucking slut?"
"Well, it's not like you don't have plenty of practice." Alex quipped, before grabbing Haley's hair and pushing downward, "Now get on your knees bitch! Suck my fucking cock! Oh yeah, just like that, suck it you fucking cock sucker! Mmmmmmmmm yeah, suck it like the little slut you are! Oooooooh, you really didn't need much encouragement, did you?"
Alex giggled as Haley proved her right by taking the dildo deep into her mouth, after it had taken minimal effort to get her big sister on her knees in front of her and wrapping her lips around her cock in the first place. Which honestly made Alex feel a little jealous for the first time since shortly after their affair started. No, actually she still got jealous all the time when she saw Haley shamelessly flirting with any musclebound moron which crossed her path, but at least that was just to keep up appearances and help hide the true nature of their relationship. This was worse, because it was a direct reminder how many boys Haley had fucked before they got together, and Haley considered herself more straight with one exception than bi and could easily go back to boys at any time.
Doing her best to put those kind of thoughts out of her mind Alex chose to focus on the bizarrely erotic sight of another girl sliding her mouth up and down a dildo strapped around her waist. Alex had often wondered why Haley loved having her do this so much, and while she had mustered up the courage to actually ask Haley she wasn't totally convinced by her big sister's explanation. Turns out it was just something she had to experience for herself, because wow, this was really hot. And Alex really did feel powerful, as weird and deeply disturbing as that was. And she kind of wished it was her, pleasing Haley by showing off what a nasty little slut she was.
For a moment the roles were reversed back to what they normally were in Alex's mind and she was preparing Haley's cock for one of her slutty fuck holes. Then she was cleaning the dick of her pussy or ass. Then she was woken from the submissive thoughts by the sound of Haley choking slightly, the older girl clearly a bit out of practice from spending over a year receiving blow jobs instead of giving them. Although she clearly hadn't forgotten how, as with Alex focused on her again Haley lowered herself the rest of the way down the dildo so her lips wrapped around the base, announcing she was officially deep throating the entire length of the strap-on dick.
Briefly Alex wondered if Haley had deliberately choked to get her attention, but as she continued choking and gagging for the next few minutes she supposed it wasn't for her benefit, even though it turned her on an obscene amount. Almost as much as seeing Haley bob her head up and down the full length of the strap-on while sucking and slurping on it noisily, Alex so fascinated by the sight that she allowed the BJ to continue for much longer than it needed too. Besides, it was all part of her getting 'revenge' on Haley. Another part was raining down verbal humiliation throughout, and even though it was repetitive Alex couldn't claim she didn't enjoy it.
"Yeahhhhhhhhh, suck it slut!" Alex taunted, doing her best porn star impression, otherwise known as her Haley while topping impression, "Suck my cock! Suck it like the dirty little cock sucker you are! Mmmmmmmm yeah sis, be my cock sucker. Oooooooooh, I love it when my big sister sucks my cock. It makes me so hot. Fuck Haley, you're so hot. Especially when there's a cock in your mouth. I bet you hear that all the time, don't you? All those boys you used to fuck couldn't get enough of your pretty little mouth, could they? Yeah, no wonder you were so popular with these kind of cock sucking skills. Ohhhhhhhh fuck, makes me wonder if you're still at it. Huh? Do you sneak off at night to suck cock? Huh?"
"No!" Haley gasped after she pulled her mouth away from the dildo, then taking a quick breath before she continued, "I love sucking cock, but this is the only kind of cock I want to suck now, I swear. Oh Alex, I'm so gay for you. Mmmmmmm yeah, I'm gay for my little sister's big boobs, fat ass and yummy little cunt! And now I want her to fuck me. Please Alex, fuck me like you promised you would."
For a few seconds Alex just stared lustfully at her sexy sister and then told her, "Get on the bed. Get on the bed so I can make good on my promise and fuck your stupid brains out!"
Grinning wickedly Haley got off her knees, jumped onto the bed, crawled into the middle of it and then wiggled her ass at her sibling before asking her, "You mean like this?"
"No." Alex shook her head, "Flip over! Mmmmmm, I want to see your beautiful face while I'm fucking you."
Haley blushed and slowly turned over onto her back. Given all the nasty things they'd done to each other for over a year now it seemed weird that they were still capable of blushing, but sometimes Alex would call her beautiful or something like that, or just say something sweet, and Haley just couldn't help herself. Although it worked both ways, and Haley was going out of her way all the time to embarrass Alex because she thought her kid sister was so freaking cute when she blushed, so really this was just more of Alex getting her revenge on her usually dominant big sister.
Haley was also blushing because she was still recovering from the deep throating, which she had thoroughly enjoyed, but she was out of practice. Also given how well this night was going so far maybe that would change and from now on Alex would be giving her plenty of practice sucking cock, and maybe Haley would like that. Maybe she would like that a lot. Especially if it meant more of the main reason she blushed, namely spreading her legs so that her baby sister could settle in between them and pushing their big strap-on cock into her cunt, Haley throwing her head back and moaning what was probably too loudly as Alex penetrated her.
Of course Alex didn't give her that pleasure right away. Oh no, in the name of revenge Alex just had to slide the tip of the strap-on up and down her pussy lips for a few agonising seconds, causing Haley to softly groan in frustration, which in turn made Alex giggle just as softly. Then Alex was frowning at her for moaning loudly as she was penetrated, Haley actually surprised when she didn't get an ear full from her sibling. Surprised, but very grateful, Haley just trying to do her best to keep her moans as soft as possible as her little sister slid inch after inch of her big cock inside her pussy, causing it to stretch like it hadn't done in over a year.
Before she and Alex had started secretly dating Haley used to dildo her pussy all the time, and made sure she got fucked by a real cock almost just as regularly. Society told her that made her a slut, which she always thought was unfair. How it was okay for boys to love sex, but not for girls. Well Haley had always loved sex, and she didn't think she should be ashamed of that. Especially when she wasn't even ashamed of the fact while she loved getting fucked she was addicted to fucking her own sister, or that after over a year of getting lost in being the fucker she was now combining her two loves in becoming the fuckee again. And if that made her a slut it was okay, because she would be Alex's slut.
Alex's biggest fear was that someone would discover the truth about her relationship with Haley, which was why she insisted they publicly fight in an effort to pretend everything was normal. But the truth was she wasn't ashamed either. Unlike Haley she got why she should be, this was her own sister, but it was all just too intoxicating to stop. And she had made peace with the fact she was a slut, given she had the most intense orgasms through anal sex, which undeniably made her a butt slut, but while she would never want anyone except her sister/lover to know that again Alex wasn't ashamed of it. Not really.
Honestly Alex couldn’t be ashamed if she tried, not when faced with the beautiful sight of Haley's pussy slowly swallowing her cock, her slutty big sister unsurprisingly taking everything with ease and then wrapping her arms and legs around Alex's body and giving her what had to be her best 'fuck me' look. The temptation to do so was pretty overwhelming, but Alex persevered so she could give Haley a deep kiss for a few long moments, which was probably torturous for them both, before she finally pulled her hips back and then pushed forwards, causing the dildo to slide in and out of her big sister's cunt, which in turn made Haley moan happily into her mouth.
Back and forth, back and forth, back and forth Alex's hips went, for the first time ever the little sister fucking the big sister like a man fucks a woman. Oh yes, Alex was taking her beautiful big sister like a bride on her wedding night, making Haley her bride. Oh Alex loved that idea. She loved it so much she wished she could make it a reality, her brilliant mind suddenly caught up in the vivid image of herself and Haley making love in wedding dresses. Her mind then re-winded to the wedding itself, Alex briefly smiling at the image, before the idea of her family watching popped into her head, the approval she imagined on their faces ringing false and taking her out of the fantasy.
When she got over that image Alex found her current reality was actually pretty awesome, as although she had pulled away and broken the kiss when she had imagined her family, she now found herself staring down at Haley who was staring lovingly back at her, which only made her always stunning sister even more beautiful. As did the look of pleasure washing over her face as Alex was filled with the need to fuck her, which Alex loved almost as much as the soft moans now falling out of Haley's mouth now Alex's lips were no longer silencing them. Which Alex should probably do something about sooner or later, but for now she just enjoyed those soft moans as she continued to fuck her sister.
Haley hadn't been expecting this. She'd been expecting Alex to fuck her hard like the slut she was, or at least used to be, and call her all the names under the sun. After all, it was exactly what Haley had been doing to Alex for over a year now, and this was supposed to be Alex's revenge, and Alex certainly hadn't held back during the blow job. Only... she had. Sort of. Because Haley had been fucking Alex's mouth like a cunt, or ass hole, and Haley had thought she'd get the same treatment, only to assume Alex had chickened out, or simply not felt comfortable with it. Now Haley was beginning to suspect Alex had meant to go easy on her but just couldn't resist taking a couple shots at her when she was in such a vulnerable position.
Now they were actually having sex in the 'traditional' way, or as close to it as they could get, Alex seemed to have abandoned her quest for revenge in favour of making love to Haley. Or maybe this was the plan from the get go. That Alex wanted to make love to her in a sweet and tender way that no boy ever had, the whole time kissing her softly or staring at her lovingly. Or maybe this was the revenge. Show Haley what a jerk she had been by showing her how she should use the strap-on. Or at least once in a while, because Haley knew how much Alex loved it when she fucked her like a slut. After all, she had faked orgasms in the past, although never with Alex, as it was impossible to fake a squirting climax.
Haley wouldn't be faking when she eventually came, as even though Alex had never done this before they had become experts in making each other cum and as a few moments ago had proved her sister as could easily get her off with her fingers or her tongue if wearing the strap-on had proven out of Alex's comfort zone. Thankfully that wasn't the case, and even though she never quite gained the confidence Haley had with the device she had quickly established a slow and steady rhythm which soon had Haley wanting to beg for more. The only reason she didn't was she wanted this wonderful feeling to last longer, and she wanted Alex to get a real chance at being on top.
Of course there was a limit to her patients, and Haley always intended to beg for Alex to make her cum, but before she could Alex whispered, "I love you Haley."
"I... I love you too Alex." Haley whispered back.
With that Alex kissed her again and began increasing the pace of her thrusts, pushing Haley to the edge of orgasm in what felt like seconds. She then kept her there for a few minutes, which was definitely the kind of payback Haley had been expecting, except Alex didn't leave her there half as much when the roles were reversed. No, just like with the gentle thrusting Alex didn't wait until it was unbearable before giving Haley what she really wanted, and when she increased the pace ever so slightly her genius of a little sister made sure to keep that kiss going to make sure Haley's screams of pleasure were muffled by Alex's eager little mouth.
Alex had become an expert at making her big sister cum. Not like this, but her previous experience told her when Haley was close, and it was very obvious when she achieved her goal. If anything it was difficult to hide the truth from everyone else in the house, although Alex suspected if anyone else in their family heard strange noises coming from the room she shared with her sister they were just assume Haley was hooking up with her latest boyfriend and as Haley was legally an adult now they figured arguing with her wasn't worth it. Little did they know what was actually going on behind closed doors.
Wanting to keep it that way Alex continued the passionate kiss as she continued to strap-on fuck her sister. It wasn't easy now she was pounding Haley's pussy with every ounce of her strength, and there were a few times that the now short haired girl involuntarily broke the kiss because of a particularly strong orgasm, but then Alex managed to cover her mouth with a hand or Haley was just about able to grind her teeth or bite her lip or something to keep quiet. And for a few wonderful seconds after breaking the kiss the two sisters were able to stare into each other's eyes and share the forbidden love they felt for each other, Alex particularly enjoying it because she could see the pleasure in Haley's eyes. Then she would have to kiss her sister again, which she would always love.
As she wanted to be able to do this again Alex used every ounce of energy in her body to fuck Haley as hard as she could, for as long as she could, which was a lot considering that Haley was clinging onto her at that point like a spider monkey, her arms and legs holding Alex tightly during this passionate round of lesbian incest. Then when Alex completely ran out of energy and collapsed onto her sister Haley quickly rolled them over and started riding the dildo pretty much just as hard as Alex had been fucking her, for the most part even keeping the kiss going. But at that point Haley was exhausted by her own climaxes, and it wasn't long before she pulled herself off the fake cock and collapsed on top of Alex.
Which was a relief to the younger sibling as the stimulator inside the harness and the sheer joy of fucking her sister like a man had given Alex almost as many orgasms as Haley. Well, maybe not that many, but enough to leave both sisters panting desperately for a few minutes before Alex nervously asked, "How, how was that?"
"Amazing." Haley chuckled softly, before lifting her head and bopping Alex's nose, "Which YOU know perfectly well. You're the smart one, after all."
"Yeah, well... it's still nice to hear it." Alex blushed.
There was a brief moment of silence and then Haley grinned, "So... still wanna fuck my ass?"
"God yes." Alex smiled tiredly, "But not tonight. I'm too tired. We both are."
"Speak for yourself, pussy." Haley teased, before giving her sister a fond smile, "I love you."
"I love you too." Alex replied softly, the two sisters staring at each other like the lovesick fools they were before pressing their lips together again.
Then after a long, slow, gentle kiss Haley lay her head back down on what she had confessed many times was her favourite pillow ever, that being Alex's big boobs, the right one taking most of her head this time as she snuggled into the curvier frame of her little sister. Alex had already wrapped her arms around Haley the moment she collapsed on top of her, but now she pulled her even closer and gave her a little kiss to the forehead, before closing her eyes and allowing herself to join Haley in a little nap, if not full blown sleep, Alex dreaming of really getting her revenge and fucking her bitchy big sister up her tight little ass, the same way Haley had fucked her big round ass so many times.
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