Your oldest sister, Charlotte

Charlotte stares at the sight before her, her two siblings made one, Taylor bent in half over the kitchen table and dribbling, you with your dick buried deep in her snatch. Charlotte is still in her pyjamas, clearly woken up by your racket: her tight, flimsy shorts barely cover her large ass, and her top is cut so short her humongous tits peek out from the bottom.

If Taylor is your flaming hot sister, Charlotte is your centre-of-the-sun hot sister. They actually look very similar to one another, except Charlotte is endowed with even better breasts, a more rounded butt, and waves of platinum hair down to her hips. Add to that her narrow waist, and she could be mistaken for a bimbo - but you know she's far from dumb. She's just finished a master's degree in fashion design, and now her eyes are already deviously calculating as she beholds the situation.
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Not knowing what to do, you withdraw your slick cock from Taylor's cunt, keeping your eyes on Charlotte for her reaction. Now you're coming off the adrenaline high, you suddenly feel like a kid again, caught by your big sister with your hand in the cookie jar.

To your relief, Charlotte's eyes widen with lust as she catches sight of your still-hard dick. {if Futa==true}Taylor stretches like a cat against the kitchen table, giving her sister a mischievous smile. She{else}Taylor{endif} seems to be slowly recovering, as she smiles groggily at her sister - your cum still seeping out of her snatch, down her legs and onto the stone floor.

With an irresistibly seductive look, your oldest sister saunters towards you, her toned legs brushing against one another as her hips sway. As she places her smooth hand under your chin, your apprehensions dissolve into desire.

"Our sister looks like she's had fun, doesn't she?" remarks Charlotte with a grin. Taylor nods dopily as you both look at her. "I'm curious what the two of you taste like together. After all, someone has to clean this mess up." Charlotte runs a soft finger across your lips, then kneels between her younger sister's legs. Ever the seductress, she starts at the bottom, licking slowly from Taylor's left heel to her knee, up her creamy thigh to the source of the trouble.

"Oh, {if Futa==true}Mikaela{else}Michael{endif}," Charlotte groans, swallowing. "You taste amazing..." She slowly licks her lips, then starts on the right leg. As she cleans the cum off your sister, she keeps her eyes on you as much as possible, her eyes devouring for you with her tongue stuck out erotically. The sight is so arousing, your cock barely softens as you stroke it in front of them. Taylor's head falls back to the table with a moan as her sister reaches her opening, and eats the juices right out of her pussy. After twenty seconds, Taylor's whole body is shuddering, and after ten more she orgasms, sending a fresh stream of pussy nectar into Charlotte's waiting mouth.

When she is finally finished, your oldest sister finally stands and turns to you, sucking smears of cum off her fingers. Slowly, deliberately, she looks down at your almost-painfully hard cock, then back to your eyes. "I see why our sis is so out of it," Charlotte smiles, leaning to whisper in your ear. "Care to complete the set?"

You almost cum right then to those sensual words, but hold back, clenching your jaw, your eyes roving your sexy sister. Taking the girls of your family is an old fantasy - one you gave up long ago. When you discovered your powers, it did reappear, but you swiftly buried it, inhibited as you were back then. Now you can feel the pheromones that mark you as a true{if Futa==true} futa{endif} alpha, emanating from your body, making your sisters hot for your cock{if Futa==true}, pussy, tits and ass{endif}. You absorb the sight of Charlotte's face, a white smear the only imperfection on a flushed cheek, as she follows your gaze over her body.

"Oh, silly me," she giggles, and disrobes in two swift motions. "Ah, that's better."

It certainly is, you think, looking at her damp cunt. You can't help but compare her to your other sister: Charlotte's tits and nipples are larger, and her pussy lips are more pronounced, but Taylor is marginally more athletic. On the other hand, in Charlotte's case 'less athletic' means 'more curvy' and certainly no less erotic.

Your busty sister rolls her eyes at you, tired of waiting. "Come here and fuck me already," she demands, grabbing your dick. As she leads you by the penis to the far wall, a sudden thought pops into your head.

{if Futa==true}"I thought you had a boyfriend?" you smirk.{else}"But - but what about your boyfriend?" you stammer.{endif} Whilst Taylor is between relationships, Charlotte is still happily partnered with an Olympic martial artist, no less,{if Futa==true} not that you don't think you could deal with him.{else} and you do not want to cross that guy - especially given that he's not been exposed to your pheromones before.{endif}

"I've only known him for four years," says Charlotte, her breath shallow with anticipation. "I've known you for eighteen. About time we got to know each other a little more... intimately, don't you think?"

With that, she stuffs your cock deep into her pussy, and you both gasp with pleasure. Charlotte is not quite as tight as Taylor, but her cunt still holds you firmly inside her. If it weren't for the pussy juices already overflowing inside her, you reckon she would never be able to hump up and down your shaft as smoothly as she does now. As Charlotte clasps her arms around your neck and closes her eyes, your hips move of their own accord, thrusting balls-deep into her cunt as she descends on you. Your hands go to her thin waist, helping lever against her as you up the pace,{if Futa==true} her breasts squishing wonderfully against yours,{endif} your dick throbbing with pleasure.

"That's it," encourages Taylor, her voice the horniest you've ever heard it. She's clearly recovered enough to walk, as now her breasts press into your upper back as she rubs her clit against your {if Futa==true}bubble butt. "Fuck our older sister real good. Show her what she's been missing, like I did for you."{else}bum. "Fuck our older sister real good. Fuck her brains out, just like you did to me."{endif}

Those words make you consider what you're doing, as Charlotte hums with delight. Why are you servicing these girls for their pleasure, when you're the alpha in the house? You give one more thrust, then pull out of your sister. Her eyes shoot open with disappointment, before you roughly spin her round and shove her face-first into the wall, her tits spilling out to either side of her body as she gasps. Without hesitation, you ram your cock back between her bimbo ass cheeks and up into her waiting pussy. Charlotte moans into the wall as you pound her, keeping the pressure on her back as you gather her platinum hair and pull her head back.

"Yes, oh FUCK yes," she moans, eyes scrunched up with pleasure. "Oh, fuck, that hurts so good, yes, ohhhhhh..." Your sister shudders in orgasm, but you push through, and somehow her arousal and tension doesn't diminish, only increasing as you keep fucking her.

Releasing Charlotte's head, you slide your hand between her tits and the wall and squeeze as hard as you please, eliciting another orgasm and a particularly loud gasp from your sister. In response as you increase the intensity of your fucking, she bends her knee to stroke your leg with her elegant foot, whilst splaying her arms against the wall, knocking a canvas picture onto the floor but not caring. Meanwhile, Taylor is practically humping your upper leg with her clit, her breasts mashed against you whilst she caresses your chest. You feel a slick wetness gushing down your entangled legs - Taylor's new pussy seems to be just as wet as expected. You turn your head to meet her lips for a hungry kiss, never letting up on your other sister.

Over the thumping of Charlotte against the wall, you suddenly hear your father's voice.

"Alright, kiddos?"

Shocked, you turn your head to see him stroll through the doorway, a newspaper tucked under his arm. You marginally slow your pace as you watch him pour tea with surprise, but Taylor is totally unabashed.

"Oh, we're just great," she beams, leaning further against you. Charlotte moans wordlessly in agreement.

"Marvellous." Your dad looks over at your incestuous threesome, and to your relief - and arousal - his expression is utterly neutral, as if you're undertaking the most mundane activity in the world. Charlotte orgasms again with a moan. "Anyway, I'm gonna head off to work now," he continues. You nod, still pounding one sister's pussy whilst the other rubs her naked body against you and kisses your neck. "Have a good day, Abbotts." With a final nod to you, he strides out the door, as if he had just left a totally ordinary breakfast with his kids.

"God, I love this," you groan.

"Mmmm, good," Taylor murmurs, mouthing your ear. "It doesn't matter, just as long as we can keep doing this."

"Please... faster..." adds Charlotte between moans.

"What did you say, slut?" you say angrily, grabbing her neck and forcing her head right against the wall. Her pussy oscillates in yet another orgasm around your pumping cock, and she rasps a moan. "Because that's what you are, isn't it?" you continue. "You pretend to be the smart one, but in your heart you know you just want to be another stupid bimbo slut." Both sisters moan at your words, Taylor's grinding intensifying. "Here you are, cheating on your boyfriend with your {if Futa==true}futanari sister{else}little brother{endif} - how much more of a slut could you be? Now cum for me like a good bimbo."

At your command, Charlotte cums harder than ever before, her pussy desperately writhing around your cock. You move your hands to grab both her tits as you slam into her one last time, groping those melons for all they're worth, as she screams aloud. Simultaneously, Taylor reaches her own orgasm, shuddering against you and draping herself over your shoulder as you feel her juices gushing onto your entangled legs. It's more than enough to make you explode inside your older sister, triggering her to writhe wildly, before suddenly freezing, her eyes glazing over.

"Well, Charlotte," you pant, as Taylor continues to kiss and caress you. "I think you performed very well as a bimbo - so well, I'm going to keep you that way. You never did give me the time of day, but now I'll be all you think about. You will become far less intelligent, to the extent that you struggle with three-syllable words, and you'll be obsessed with sex, particularly sex with me; **** with your {if Futa==true}futanari sister{else}brother{endif} will be your favourite thing in the world. You already have a bimbo body, but since you are still my sister, I'll make you a gift: the hornier you are, and the more pleasure you are in, the larger your breasts and bum will grow, the thinner your waist will be, and in general your proportions will become more and more exaggerated." Then you add the standard behavioural modifications to your sister, making sure she has no inhibitions and total loyalty to you, before waking her up.

Charlotte's beautiful body spasms in ecstasy as she cries out with pleasure, before she crumples to the floor, utterly spent, your cum oozing out of her gaping slit.

You walk over to recline in a sofa, satisfied with the morning's work. Taylor slides down next to you, massaging your balls with one hand{if Futa==true} and your breasts with the other{endif} as she kisses you gratefully. "Thank you - *kiss* - for fucking us - *kiss* - {if Futa==true}Mikaela{else}Michael{endif}," she says between kisses. "You have no idea - *kiss* - how damn hot you are."

Charlotte eventually recovers, with newfound resilience, and soon joins her sister in peppering you with kisses and caresses. You remember there's still one thing left to do.

"Bimbo," you say, and you immediately have your older sister's attention. "Shouldn't you break up with your boyfriend?"

Charlotte looks confused for several long seconds, before something finally seems to click. "Oh, yeah!" she says excitedly. "I, like, totes forgot about that guy. I am sooo over him, right sis?"

Taylor doesn't reply, her mouth engaged in sucking{if Futa==true} on your clit{else} your balls{endif}.

"But... what am I meant to say, babe?" your bimbo pouts, looking genuinely upset.

"Just tell him he's not hot enough, not good enough in the bedroom." You grin broadly. "Tell him he's not intelligent enough."

Charlotte's gorgeous face lights up. "Thanks {if Futa==true}Mikaela{else}Michael{endif}, baby! You're, like, the best!"

She hugs you tightly with her nude bimbo body, then grabs her phone from her bag, and after you show her where the contacts are, she dials her boyfriend's number.

"Hey, dummy!" she announces cheerfully. "So, I'm like, breaking up with you." You hear a muffled response. "No, silly!" Charlotte responds. "It's because you're, like, not hot enough! And you're not, er, intelly... intejill... brainy enough for me!"

There's another response - now loud and angry. Charlotte kisses you noisily as she listens. "Don't shout, dummy!" replies your bimbo, now stroking your cock. "Well, yeah, I'm with someone - my hot, sexy {if Futa==true}sister, Mikaela! Well, obviously she's not Michael, she's so much hotter now.{else}brother.{endif} ...Well, duh, of course I'm having sex with {if Futa==true}her{else}him{endif}!"

"It's making a beep," says Charlotte uncertainly. "I don't... did I do something wrong, baby?"

"No you didn't," you smirk. "That was just perfect."

Charlotte squeals happily, and snuggles in closer to you, kissing and caressing you as you feel her breasts growing heavy in your hands. There you lie, with your two drop-dead-gorgeous sisters worshipping every part of you, having fucked both of them stupid and made them your sluts. Life at home's sure to be a lot more interesting now, you muse happily.