“Game time,” Laura’s voice murmurs in her ear.

Katy drops. Just like that, putting the phone down on her bed before going to the closet and getting out her cheerleader uniform, pushing all thoughts other than changing and taking the bus over to her sister’s place aside. It hadn’t always been like this. Or had it? Since graduation, things had… she…

She doesn’t feel any different. Doesn’t notice the drop. Doesn’t question why she is putting on her high school cheer uniform. Doesn’t wonder why she can hear the whisper of her sister’s voice in her head.  Doesn’t wonder why she is so… aroused. Why she is so wet…

She Can’t recall if she’d had other plans today. All she knows is that Laura has asked her to change and come visit.

Humming softly, she changes.

@

Katy sits on the couch in her sister’s living room, her heart beating a little faster than she is used to. Laura and her husband Glenn are seated to either side of her while they all sip lemonade and watch a movie.

As first, she wonders why Glenn is resting his hand on her thigh. Wonders why he is running his fingers slowly up over her exposed flesh. But when she asks, Laura simply leans closer, presses her lips against Katy’s ear and whispers.

“Good girls don’t ask questions.”

And then, Katy remembers.

Good girls did as they are told. Good girls don’t question their sister. Good girls enjoy whatever happens in their sister’s home. And so she relaxes and takes another sip of lemonade and lets her brother-in-law slowly run his hand over her thigh from her knee to the short hem of her skirt, pushing it a little further up each time. Exposing more and more of her leg…

“Does that feel nice, Katy?” Laura asks softly, gently pushing her sister’s honey-blonde hair behind her ear. Her touch feels nice. Almost as nice as her husband’s fingers as they move to the inside of her thigh, the rough pads gliding along her sensitive flesh, raising goosebumps and shivers.

“Very nice,” she manages breathlessly. It does, too. Without even realizing it, she spreads her legs apart. Just a little bit, Not in a slutty way. Just… it feels comfortable, and she remembers that Laura liked it when she feels comfortable in her home.

“What are you Katy?”

“I’m…” she pauses for a moment, losing her train of thought as she feels Laura’s lips against her neck, just beneath her ear. And then, her hand settles on her thigh, just above her knee.

“Your… good gir-“ she manages, the words becoming a soft moan of pleasure.

“My horny little sister.”

She feels herself letting go. Dropping deeper. Losing herself to her sister’s words. To her and her husband’s touch as they tease and caress her sensitive inner thighs.

“Do you like being my plaything, Katy?”

“Yes,” she whispers, the trigger that Laura had built up inside her over the summer taking hold in her… one of the triggers, she thinks briefly, and then those memories are gone – forgotten - replaced by pleasure as she feels Glenn touching her intimately through her snug spankies.

She shivers as she feels his finger running up and down her slit, only the thin polyester separating his fingertip from her quivering labia, the material doing its best to soak up the cream of her arousal.

She is so wet. So horny. She is vaguely aware that she only feels like this anymore at her sister’s house. It has been months since she’s been able to orgasm by herself in her bedroom. It's frustrating. She can finger herself right to the edge but then… something stops her from cumming.  But here… she can. With permission, of course.... Here with Laura and Glenn, she can relieve all the frustration she feels. She just has to be patient and wait to be told…

“Such a pretty girl,” Laura says softly as she reaches behind her and unzips her. Katy’s breath catches as she feels her top parting, exposing her shoulders and then her back. Revealing her lack of a bra. Laura doesn’t like her wearing a bra. Or panties. Just the spankie. At least when she is wearing her uniform.

It's a little snug, but it still fits her. She has filled out a little since High School, but not that much. She sucks her breath in as it is peeled from her, exposing her small breasts and swollen nipples. The air feels so nice on them. They are so stiff. They throb. She desperately wants them to be touched…

Katy moans, her eyelids fluttering as Laura covers one with her mouth. Her soft, wet lips feel so good. Pleasure spread through her breast as she feels her sucking, her tongue tip flickering. She barely notices as she lifts her hips from the cushion. Or maybe Glenn is doing that, his hand beneath her ass, subtly guiding her so Laura can peel her spankies down her legs, leaving her smoothly shaved pussy on display.

“So wet, baby girl,” Laura coos, her finger tracing her lips, one at a time. Sliding over them. Petting her. Making her moan with hunger.

“When was the last time you had an orgasm, Katy?”

When… she is having trouble thinking. It had been the last time she’d been over. That was…

“Two weeks?” she whispers, almost tripping over the words. Two weeks ago, sitting here on this couch. Naked. Her brother-in-law’s cock filling her mouth while her sister licked and sucked her pussy, her tongue eventually flickering against her sensitive clit, driving her into desperation until she began to beg… Praying to hear the magical words that allowed her release.

“Have you masturbated since then?”

“Every night,” she admits, gasping as she feels Glenn’s fingers pushing between her labia and into her dripping wet cunt.

“But you didn’t cum?”

“I couldn’t,” she moans. She’d tried to, though.  Rubbing herself raw in desperation, always balanced on the edge, but unable to push herself over. It had been torturous. She’d even called Laura one particularly bad night and begged her to let her…

She’d just laughed and told her to behave. To be patient. To be a good girl…

And so she did. She waited patiently. She behaved. She promised to be a good girl and not cum without permission…

“Tell me what you thought about while you were trying to make yourself cum, Katy."

She shakes her head, not wanting to share. Not wanting to admit the terrible thoughts that fueled her fantasies as she lay in bed, naked, the covers pushed aside, her hand between her spread legs as she frantically rubbed her clit and fucked herself with a flesh coloured didlo.

“I can’t,”  she whimpers.

“Yes you can, baby girl,” Laura corrects her. “If you do, I promise to let you cum for me…”

Katy shakes her head, but the words are already spilling from her mouth.

“I thought about Dad walking in on me… He’d just come home from walking Jocko…”

“Who is Jocko?”

“Our dog…”

“You didn’t lock the door, Katy?”

“No. I never do… I used to, but… I keep forgetting to…”

“Good girl,” Laura says with a smile, kissing her, her tongue forcing her lips apart, pausing to let a strand of drool fall from her mouth onto Katy’s tongue.

“What happens then?”

Katy stares up at her sister’s face and gazes deep into her pale blue eyes. It was almost like looking into a mirror.

“He… He drops the leash, and then he stands over me, over the bed, and… watches. I can’t stop myself. I don’t want to. I keep fucking myself with my dildo and stare up at him, Laura.”

“Such a slut,” she says, shaking her head. “My little sister is a dirty little slut.”

She whimpers as Glenn peels her uniform top down to her waist and then pushes her skirt up to expose her pussy, leaving her sprawled on the couch, her legs spread obscenely her cunt making a mess on the cushions.

“I am a dirty little slut,” Katy repeats obediently, like a good girl. Good girls get to cum. That’s what Laura always tells her. And she needs to cum so bad.

“Is that all he does? Watch?”

“No,” she says. Or tries to. She can’t say the word. It’s so wrong. So she just shapes it with her mouth, hoping that her sister will understand.

“Let me help you with that, Good girl.”

Katy feels herself going deeper. Again. Surrendering her mind and her body. It’s not the first time, she thinks… and then that thought is forgotten. Lost. Her memory of it fading.  There is just now.

Her gaze shifts from her sister’s face to Glenn. He’s standing over her, watching her. Staring as she reclines on the sofa, half naked, her legs spread, her tits and her pussy on display. His gaze is intense. She looks away, or rather, downward, the motion of him unzipping his pants drawing her attention.

“What happens next?

“He… he unzips his pants and takes his cock out…”

She sighs with pleasure as Laura’s fingers stroke her tits, brush her sensitive nipples, trace her collarbones and ribs,  She barely notices Glenn stroking his cock above her, repositioning himself so that it’s above her face.

It’s huge. Thick and swollen. Twitching. She can see precum glistening on the tip. She licks her lips, breathing hard, inhaling his scent... 

“What happens next, Katy?”

“He… he gets on the bed and… Tells me to suck him…”

“Who does?”  she asks, her voice soft, steady, firm. 

She licks her lips. Good girls always tell the truth, and she is a good girl.  A good sister.  Laura has told her so, so many times. She wants to be obedient. To please her so that she will let her cum for her. She can’t concentrate on anything else.

“Daddy does…”

A flash of triumph flickers in her sister's eyes.

“Good girl. Tell me, Katy. Do you suck him off? Do you let him put his cock in your mouth like a good daughter?”

She squirms, focusing on the cock above her, watching as Laura’s husband strokes it… she is mesmerized as Laura reaches out and pushes his hand away, wrapping her own fingers around it.

“Whose cock is this, baby girl?”

“Your… your husband’s…”

“Are you sure?”

“I… think so? I don’t know…”

Laura’s breath tickles her ear, her words so soft that they feel like a summer breeze.

“Glenn’s not here today, baby girl. I invited Daddy over instead. He has been fantasizing about seeing you in your hot little cheerleader uniform for ages. About you sucking his cock. About fucking your mouth. About spewing his hot cum all over your face and your tits.”

Her eyes go wide as she stares up at… she’d been so sure it was Glenn but… it wasn’t. It was her dad standing over her while Laura slowly jerks him off, his cock twitching and dripping with precum, his eyes full of hunger and lust…

“I’ve been waiting for this for so long, baby girl,” he says, his voice rough, cracking a little on the words as he lets her sister guide his cock. Like a good girl, she opena her mourh wide for her daddy, moaning as she feels his cock slide over her tongue, lifting her hips as her sister pushes a pair of fingers into her needy cunt…

She's sucking her father’s cock… it's so wrong… it's incest... 

“Cum for me, good girl,” Laura tells her tenderly as she lovingly brushes her fingers through her hair. 

She feels herself letting go, shaking with need as ecstasy crashes through her, her body lifting off the couch as she feels her father’s cock twitch and swell against her tongue, her lips tightening, trapping his ejaculate as he blows his load in her mouth.

“Cum for Daddy.”