Broken Promises

A couple hours pass without you seeing one another again, as far you're aware your sister stays in her room while you lounge around downstairs, idly flicking through the channels for something to watch that might take your mind off the toe-curling cringe of having your love of ENF exposed by your own sister. You'd never have expected her to just...strip like that, without a care in the world or a moment's hesitation; you didn't think it was possible for a girl to be so unnervingly, utterly unconcerned about nudity, about being seen naked by another, least of all a family member. You bristle at the memory of being made to promise you wouldn't think of it as embarrassing or degrading anymore. How could you possibly keep it, when for as long as you can remember it's been virtually impossible for you to get off to anything that didn't feature a cute girl whimpering as her skirt flies off, or having her panties pulled on by a mischievous animal?

Before long, you begin to feel the urge to masturbate. You ignore it for as long as possible, but eventually you feel yourself getting hard as you sit there, and you realise there's nothing for it but a quick 'session' to alleviate your growing horniness. Taking your phone out, you go to one of the bookmarked sites you always return to at times like this, 'BareBlushingBabes.com' and find an animated short of a well-endowed blonde on laundry day, getting the train over to the nearest launderette but making the fatal mistake of wearing a skirt when all her underwear's dirty. In the video she steps onto the escalator, nervously glancing around, when she hears a sharp intake of breath from behind her. She turns and sees a man standing below her, looking right up her skirt, a look of dawning horror appearing on her face. "Ohhhh..." she says, in a quiet squeak of a voice. "I forgot..." the camera cuts to a view up her skirt, pussy perfectly centred in the middle of the frame. Yeah... you think. That's the stuff, he's seeing everything and there's nothing you can do about it. You stroke yourself to completion, sighing contentedly as you cum. "They're all looking...at me...oh no...!" The woman in the video says, a little louder than you expected. You quickly turn the volume down a few notches and look up at the ceiling, dearly hoping your sister didn't hear that. You wait a couple seconds, but there's no sudden movements or muffled shouts from upstairs. That was a close one, gotta be more careful when she's around from now on.

That close-call with the video is forgotten soon enough. Another half-hour slips on by and you make your way to the kitchen for a snack. You decide to make yourself a sandwich and are putting the finishing touches on it when you hear footsteps on the stairs. You keep your eyes trained on the sandwich when your sister walks into the room; it's only when you see her at the corner of your vision come and stand right next to you and clears her throat that you look up. "Jesus!" You exclaim, at the sight of your sister. She's naked except for a pair of grey panties—different, you can't help but notice, from the pair she was wearing earlier—which appear a little big for her. Their waistband isn't flush with her skin, instead it bands loosely in and out, crumpled in several places, almost threadbare in others. You try not to look at her tits, but god is it tempting. She has her hands on her hips, the only thing she's wearing other than the panties is an unimpressed look, which she's directing at you. She can't know, you reassure yourself. She was all the way upstairs, and besides it wasn't even that loud!
"How's it going?" She asks, hands on her hips. You swallow, then answer shakily, "I...nothing...really...I...yeah."
She raises an eyebrow and smirks. "Uh-huh." She pads across the cold kitchen tiles with her bare feet, opening the fridge and bending to look inside it. Her ass is framed nicely by the panties draped over it, ill-fitting though they are. You watch as she makes a show of looking through the various shelves, goosepimples rising all over her body from the cold issuing forth from it, then something strange happens. There is a subtle side-to-side shimmy of her hips, and you see the panties slowly sliding downwards off of them, baring inch-after-inch of smooth skin as they go. You almost think to warn her, but something tells you she's already well aware. You exhale sharply through your nose as your sister's panties fall down and over her ass, continue on down her slim legs, then pool at her feet. She finally closes the fridge and turns to look at you. Instead of stepping out of them or pulling them back up, she leaves them there around her ankles and brushes her hair out if her eyes as she looks down, making a surprised face before she starts doing an awkward naked waddle around the kitchen. "Oh, no!" She says in an unnaturally high-pitched voice. "My panties have fallen down, now I'm naaaaaaked in front of my brooooother," she stretches the syllables in some of the words out, unmistkably mocking you.

You blush and look away. "C-cut it out." You say. She gives you a cheeky grin and pushes up her breasts from below, it draws your eye despite your best efforts to ignore it. "But brooooother, my panties fell down and I'm sooooo embarrassed by it! I just wanna die I'm so humiliated!"
"You're awful."
"Awfully naked. Every time you look at me..." she pushes out her bottom lip and gives you puppy dog eyes. "It reminds me how nude I am and how rude it would be for my brother to see me like this," she takes a deep, exaggerated breath. "It's bad enough when strangers see you like this, but my own brother? It makes me cringe so hard when my panties slip on off my supple, child-bearing hips and fall down around my an-kles! What if my brother saw my butt?" She turns around and puts a hand under her thigh creases from below, then rapidly jiggles the bubble-shaped, fair-sized cheeks right in front of you. "Or even..." she turns to face you again and traces her finger down the length of her slit, then stops and stares right at you, making a comical expression of shock and embarrassment. "Oh nooooo, not my pu-ssy...don't looooook!" Your sister brings her legs together, then slides a hand down in-between her thighs with practiced slowness.
You fold your arms and glare at her. "Stop it!"
"Why? Are you..." she flaps her hands theatrically. "Embarrassed? I don't see why. This is just the kind of thing that happens in this ENF stuff you love so much; I mean it's not like there's any variation like sex or BDSM, it's just pretty girls losing all their clothes and blushing till the cows come home. That's what turns you on, you get off on Susie getting her panties pulled down in front of the whole school! Or Mandy's titties growing three sizes while she's asleep so she can't wear any of her bras to work, but then an accident with a fan makes her blouse blow open and everybody sees her big, voluptuous jugs, and her nipples too!" She fake gasps and puts a hand in front of her mouth. "I don't know what I'd do if someone saw my big, voluptuous jugs and nipples too...I'd..." she looks down and makes her eyes go wide, then claps her hands over her bare breasts at lightning speed, making a loud slapping sound. "Oh noooooooo, I forgot my boo-bees were out and my brother saw them, how am I ever gonna look him in the eye now after he saw my big," she lets go of her left breast and holds it up for you to see, before covering it again. "Voluptuous," she repeats the process with the right. "Tiddies," Both are briefly exposed this time. "And my nipples too!" She widens the gaps between fingers to give you a view of her nipples. They're light brown circles fringed with faint freckles, and she opens and shuts her fingers multiple times, squealing as if in surprise each time.
"I mean it's just so blasè." Your sister concludes, her voice dropping back to its usual register. She drops her her hands to her sides, then steps out of the panties, stooping to pick them up and throwing them at you. They hit you in the chest, and you watch them fall to the ground in front of you. "At least if it was regular porn of babes getting railed I'd understand where you were coming from as a regular, red-blooded male, but this? I bet every time you go out and see something with two legs and a skirt you fantasise about the wind blowing it up and how red her cheeks'll go when it does. Is that what you like? Is that all you like? Girls in distress? Girls naked and always trying to cover themselves with their hands until something else happens that exposes them all over again?"
"It's not...I just..." You narrow your eyes. "I don't need to explain myself to you!"
"Ah," she nods. "So now the blusher becomes the blush-ee, it's not so fun? What, you don't want to see me naked because it doesn't bother me?"
"I don't want to see you naked because you're my sister!"
She snorts. "As if that's a turn-off for you. I've seen your browser history, I know what makes your engine run."
It's none of your business!" You retort.
"Is now. Besides, you made a promise and then immediately broke it! You think I didn't hear whatever dumb thing you were watching on your phone? Hm?" She crosses her arms under her breasts, accentuating them in a way that makes you want to keep on looking.
"That's private!"
"So's this," Your sister takes two fingers and plants one on each of her labia, then parts them with a "Ta-Dah! Private schmivate, kimosabe!"
"Since when do you say 'kimosabe'?"
"Since I saw this old movie where a cool guy said it right before he shot another guy. I kinda like it, might just make it my thing now. Deal with it." She lets go and her labia go back together, then she comes up to you, kneels—seeming to regard your crotch thoughtfully as she does—picks up her panties, straightens up and struts off back out of the kitchen.

[Author's Note: I always enjoy and appreciate feedback in terms of what's working and what isn't, so please feel free to like and/or leave comments!]