Less than 24 hours, but at least your Sister has protection this time

After finally feeling Lyra's cock inside you, albeit only a small part of it, but more than enough to finally give you the release you've been craving the last few days, you feel a bit more at peace. You're still no closer to figuring out if it's just finally being in a position to get some quality time with a big hard cock which has you excited or if the illicit thrill of fooling around with your Sister has you tingling all over. In any case, you choose not to worry about it for now, since you're enjoying yourself in either case.

The first few photo sets get uploaded and your own fan base seems to be growing quite well, with more than a few enthusiastic comments to make you feel more confident about your body than you've felt in years. You even get your own generous tip from FutaFamFan69 welcoming you to the site and hoping to see much more of you and Lyra. Lyra seems confident that you could make a good go of this if you want, possibly being in a position to quit your boring day job, which you have to admit is starting to seem considerably more appealing as time goes on.

The day after Lyra takes you out on a shopping trip in the nearest city to the lodge, the drive-over both of you discuss possible photo ideas, before enjoying the music and reverting back to small talk between two sisters who hadn't almost had sex. You do some shopping for a few hours, which is mostly you trying on the outfits with your Sister giving feedback but there were a few items that Lyra likes the look of and you're happy to return the favour.

One thing you quickly learn is your younger Sister is she's not afraid to put her hands on your body to check the fit and feel of the outfits when it comes to adjusting the sit of them. The feel of her hands on your body and the promise of what was to come made trying on underwear a challenge as your juices start to flow. You knew that would put an end to trying on any more underwear, what you were less sure of is whether your younger Sister is doing it deliberately to tease you, or if she just couldn't resist running her hands over your body.

The pair of you consider stopping at a nearby cafe to grab a bite to eat, however, as you head down to a street Lyra notices a store and suddenly a different kind of hunger overtakes. Your Sister dashes into the store and a few minutes later comes out with a bag and starts heading back to where her car was parked with you following close behind once you realise what she ran into the store for.

A short drive later, you find yourself on your back in Lyra's bed again, only this time you were going to cross that last line and perhaps finally discover if you're **** for cock, or specifically **** for your Sister's cock. By the time you get back to the lodge, Lyra is practically dragging you to her room and pulling off her clothes.

You motion to start pulling off your own clothes and hesitate for a moment, the full enormity of what you're about to do with your Sister suddenly hitting you all of a sudden. This wasn't almost cross the line like yesterday, in a moment of passion and heightened state of arousal from the shoot, there was no excuse to hide behind. If you strip naked and climb onto that bed, Lyra your younger Sister will climb between your legs and fuck you with her meaty futa cock.

This would be pure unadulterated ****, a forbidden meeting of bodies between you and your Sister. It would be wrong, taboo, forbidden and yet as your mind rolls the idea around, you can't ignore the excitement you feel. The dizzying rush of doing something you know you shouldn't only heighten the anticipation of the pleasure you'll feel. The darker part of your mind slowly begins to rally against the doubt and shame the more rational side is attempting to throw up in a vain attempt to stop you.

You and Lyra both want this, and you'll certainly both enjoy it, so what does it matter, who were you harming? You were being smart and using protection, so what's the harm? Yes this is illegal, but it's a victimless crime, one that no one would even know about, you rationalise to yourself. So why should you let a silly thing like societal norms and morality make you feel bad about this, no one would know bar you and your Sister and you were both happy and eager to do it.

"Something the matter?" Lyra asks nervously, seeing you standing there motionless, her cock already hard and raring to go, if the damp spot at the tip of the bulge in her panties were anything to judge from.

"No, just a little nervous," You reply with a smile. "It's been a long time since...." You add leaving the sentence to trail off as your younger Sister nods sympathetically.

"Not to worry, let your Sister take care of everything," Lyra replies walking over and pulling you into a tight embrace. The warmth of her body against yours and the subtle scent of her arousal makes your head spin.

"Ok," You say softly as Lyra starts helping you to undress.

You stand there Lyra kissing your body as layer by layer she strips you naked, until soon you stand before her in just your panties, Lyra stopping for a moment to slide her hand down the front of them, her fingers teasing against your dripping sex. Lyra kisses a trail down your body starting at the nape of your neck the feeling of her soft lips brushing against the sensitive skin making you shiver. You let out a soft gasp as your Sister's fingers tease and tweak your swollen clit, which grows in a soft whimper as Lyra's lips wrap around one of your erect nipples and gently suck and tease it.

You were already committed to what would happen, you've made your peace with crossing the forbidden line, Lyra could simply shove you onto your back and take you now, yet she continues to drive you wild. You hiss and moan in pleasure when you feel your Sister's slender fingers slip between your soaking folds, while her thumb presses and brushes against your clit. Your mind swims with each wave of pleasure, every movement your Sister makes sends a ripple of delight through your entire body.

You melt under the sweet and sensual touch of your Sister, your body like a lump of clay in the hands of an expert being moulded into a masterpiece. You get so caught up in the moment that your orgasm catches you off guard with the speed of its arrival, the forbidden nature of what you're doing and about to do the fuel to the fire of your lust. You cry out in ecstasy your entire body shaking and quivering, held upright by your Sister's firm and strong embrace. The silky slick walls of your pussy squeezing your Sister's fingers.

"Ok, now I think you're ready," Lyra coos lifting you off your feet and carrying you over to the bed, pulling down her panties and freeing her thick throbbing cock. Seeing it like that makes your heart skip a beat, its size seeming suddenly more intimidating than it hard when you were happily taking it in your mouth. "Don't worry Sis, I'll go nice and slow and give you a chance to get used to my size," Lyra says in a sultry tone as she pulls out a large box of condoms from the bag and expertly tears upon the foil square and quickly rolls the protective sheath over her thick member.

You swallow, knowing you were a mere few moments away from feeling your Sister's cock inside of you, all of it this time. You feel the warm rush of excitement fill your body, the dark illicit thrill of the taboo you were about to shatter. You watch as Lyra stops to check the camera still set up from the previous day, a wicked grin spreading across her face as she can see it come to life as it begins to record.

"Are we recording this?" You ask nervously.

"No, I don't want any distractions the first time I fuck my big Sis," Lyra lies, flashing you a big smile. "Speaking of which, this is your last chance to back out Mist, the last chance before we go all the way," Lyra teases, stroking her condom clade cock a few times.

"Shut up and come fuck your Big Sister already," You reply.

"You don't have to tell me twice," Lyra replies with a grin as she hops onto the bed and positions herself between your legs. "Just wish I didn't have to wear a condom," Lyra adds with a giggle.

"Too dangerous to go without," You reply, letting out a soft gasp as you feel the swollen head of your Sister's fabulous futa cock bump against your soaking slit.

"I know, but just thinking about unprotected sex with my Big Sis just really gets me going," Lyra replies with a hungry glint in her eye. "Idea of getting lost in the heat of the moment, throwing caution to the wind," She adds in a sultry purr.

"I know it sounds amazing, but what I you got me pregnant," You reply feeling a strange warmth wash over your body from your Sister's words.

"Almost worth it, just to feel how good it would feel to cum deep inside of you," Lyra replies with a giggle. "Can't you imagine the warm rush of cum flooding your body, the wrongness of it, the rush of doing something so risky," Your Sister continues, her cock throbbing against the entrance of your sweet sex.

"No, I've never had anyone cum inside me before," You admit nervously. "Does it really feel that good?" You reply.

"One day I'll show you just how good it feels," Lyra promises, licking her lips and closing her eyes as she tries to regain composure after getting a little too worked up with all this talk of cumming inside you. "But for now we play it safe," Lyra concludes, before taking a firm hold of her sizeable shaft and slowly pressing forward.

You're about to say something about how that might be going too far, but before you can form the words you find yourself letting out a loud groan of pleasure as Lyra's cock slips between your slick innerfolds. You feel the crown of your Sister's cock parting the walls of your pussy effortlessly, thanks to all the extra lubrication from your earlier climax. Even through the thin latex barrier, you can feel the veins and ridges of your Sister's shaft each inch bringing a fresh wave of immense pleasure.

"Fuck, you feel so good," Lyra groans as she continues to feed more and more of herself into you.

Your fingernails claw at the sheets beneath you and your toes curl with pleasure as you try and process the sheer bliss of having such a thick hard cock filling you. Admittedly you hadn't been with many partners, but even if you had, you suspect they'd all pale in comparison to the sheer majesty of your Sister's futa fuckstick. By the time Lyra bottoms out, you can already feel that warm tingling heat and pressure in your core starting to bubble and boil as your second orgasm is rapidly approaching.

"Mmmmm, how does your little Sister's cock feel Mist?" Lyra giggles as she holds herself deep inside of your pussy, giving you some time to adjust to her sheer size.

"Anything but little," You groan, feeling the muscles in your entire body starting to tense as you teeter on the edge of orgasm. "The biggest I've ever had and so fucking good!" You add with a hiss of pleasure.

"Aw stop, Sis, you're going to make me blush," Lyra giggles, her soft laughter sending a slight ripple of movement through her cock and giving you the last little nudge needed to cum.

"Oh fuck, cumming!" You cry out, feeling your walls tighten around the thick mass of your Sister's member and trying to squeeze it.

"That's it cum on your Sister's cock you slut," Lyra calls out for the benefit of the people who'd get to watch this video on her other fan site.

Lyra sits back and watches you writhe and groan in ecstatic delight, a smug grin on her face as she sees just how much pleasure she can give you. The only thing that could improve this for Lyra would be if there wasn't this pesky condom between you and her. Your younger sister had gone out of her way to pick up the type that promised the closest to skin-on-skin sensation as possible, but even so, the heat and wetness of your pussy are ever so slightly muted. Although the bigger problem for Lyra is the barrier between her balls and your womb and her aching desire to pump you full of her cum and leave it to nature to see if anything stuck.

Lyra knew that impregnating you would be a huge risk, and could ruin everything, but to her, it would be the crowning jewel to her master plan to seduce you. She wanted it all, to shatter every taboo she could, to cross every line a Sister shouldn't cross, she wanted to knock up the Big Sister she idolised all these years, to give you everything your loser ex-husband couldn't. The fact the fans on her taboo site would pay a small fortune for some true inbreeding videos is just a happy bonus.

Lyra feels a strong urge to tug at the base of the condom, adding just enough strain to cause the condom to tear and give her access to your defenceless womb. It could take months of fucking you bareback before you got pregnant, so what harm would just one deep thick creampie be? There are already a few eager swimmers from just yesterday. Fortunately for you, Lyra decides to resist the urge, for now, she'd slowly tease and coax you into fucking bareback, for now, your Sister is going to just enjoy finally getting to fuck you.

Once your pussy loosens its iron-like grip on Lyra's cock as your orgasm begins to wane, Lyra begins to slowly slide herself out of your slippery sex, only to slide herself back in. You hardly come down from your second orgasm, before your Sister's thrusting has the next one building, all you can do is hold on and howl in pleasure as Lyra starts to increase her pace and properly pounds your pussy.

The room quickly fills with the rhythmic slapping of your Sister's hips colliding with your own, each making a satisfying wet sound, with Lyra's heavy balls banging against your ass. There's a distinct smell of your liquid arousal and sweat and sex that fills the room, the heady aroma making your already lust-addled brain feel delightfully dizzy.

Despite the slightly muted sensation through the condom, it seems that finally getting to fuck you properly is getting Lyra a little more excited, her usual stamina seemingly failing her as she can already feel her balls churning. Her already rock-hard cock begins to swell and grow even harder as her body begins the biological countdown to lift off. You can just about make out the heavy twitches and throbs heralding your Sister's orgasm, although you are too drunk on pleasure to properly register what they mean. You barely register Lyra is close even when she cries out a few moments later.

"Fuck going cum," Lyra groans thrusting herself as deep as she can, her fingers digging into your soft skin as she begins to unload.

Even through the condom, you can feel the slight heat as thick sticky ropes of cum erupt harmlessly into the tip of the condom, it feels incredible especially with each heavy throb and pulse of your Sister's cock. However as the condom deep inside your pussy continues to slowly inflate with the sheer volume of Lyra's creamy cum, the sensation isn't enough to get you off. It's a little frustrating with how close you were even as Lyra slowly pulls her cock out of you, the tip of her condom rounded and filled with her potent futa seed.

"Oh fuck that felt amazing," Lyra pants as she gently slips the condoms off her cock. "How was it for you, Sis?" Lyra asks with a giggle. "**** everything you hoped it could be?" She continues.

"Amazing, but I was so close," You groan in frustration.

"Oh, shit let me help out with that," Lyra replies with an evil grin, moving back between your legs and swiftly lining up her still hard, but cum coated cock with your pussy.

"Wait, you don't have a condom on," You groan, just as your Sister's cock brushes against your outer folds.

"Oh my bad, I'll use my fingers instead," Lyra replies with a slight grimace of frustration until her eyes wander back to the condom which was now lying on the bedsheets the thick sticky cum starting to leak from it. "Here I've always wanted to try this," Lyra says turning around and shuffling backwards until her ass is above your head.

"Hey, what are you doing," You groan, you're about to object further but as you open your mouth, Lyra takes the opportunity to slip her cock into your mouth.

"Just thought you might help a Sister out and suck me clean, while I get you off," Lyra explains with a giggle.

Lyra is happy when she feels you start to suck her cock clean as her true intention was just to prevent you from seeing her coating her fingers with cum from the condom. Then sliding the same cum coated digits into your pussy and swiftly fingering you to orgasm, your pussy eagerly squeezing and sucking the cum from your Sister's fingers. The illicit thrill of fingering her cum into your unprotected pussy quickly gets Lyra hard and stopping to slide on a new condom, Lyra takes you again.