You start to give in to your id.

[Note: At this point, chapters are probably going to start using conditional variables a lot more in order to determine what has already happened in the story. This means if you aren't playing in Game Mode, you may end up with text that is inconsistent with things that have occurred. You can of course still enjoy the story normally; I just want to make sure you're aware of this fact.]

You look Laura up and down, taking in the totality of her appearance: the puffy white scrunchie in her hair, the vibrance of her blue eyes, her shining, pink lips, and of course, her soft curves, filling out her tight T-shirt and jeans. She notices the change in your body language, and she blushes slightly, her expression shifting slightly from curiosity to mild annoyance, but she doesn't say anything else. You're both going through some wild hormonal changes these days, and she's willing to forgive your inappropriately leering look -- to a point.

You want to see more, your libido tells you.

But she's my sister, you reply.

That doesn't matter, it counters. She's a woman. You want to see more.

You can't deny it. You do. You want to see everybody naked, everybody. Every woman you run across -- and hell, even the guys, sorta. Your rabid curiosity has mixed with your raging teenage libido and intense drive for instant gratification, and resulted in this overwhelming desire to see, to feel, to experience so many aspects of sexuality, with so many people.

Still, you hesitate a bit. Manipulating relative strangers at school is one thing, but this is your sister you're talking about. It's... a bit of a line to cross. Sure, your cock is an equal-opportunity pervert, but it's always remained squarely in the realm of ludicrous fantasy, jerk-off material that you'd immediately feel guilty about after the deed was done. Are you willing to take the next step?

A young woman's voice from the television interrupts your self-analysis, and you glance over to see it's the scene where a young, tall, shapely, scantily-clad, blond-haired, blue-eyed girl asks Wesley if he would teach her "a game". You look back at your tall, shapely, blond-haired, blue-eyed sister, whose expression has now switched to a definite mix of puzzlement and annoyance. Aside from the different hairstyles, the two could practically be identical.

Uh-oh, your brain says. I'm pretty sure that just did it. You feel your libido do a fist pump in victory.

You take a deep breath. Well... here goes, you think, mentally activating the Manipulator. Then you begin, "I've been thinking about clothes lately, and society, and how weird we are about it, you know? Like, we've had excellent central heating and air conditioning for decades now, we have better hygiene than ever before, and yet we keep wearing clothes indoors because of these silly, outdated moral ideas that somehow certain parts of our bodies are dirty and have to be kept hidden. Isn't that crazy?" You stop and swallow, studying her to see how she responds.

For a few moments her expression remains unreadable, and for a moment you both just stare at each other, silently. Then she nods, slowly. "Wow, that's nuts," she says, and for a brief moment you panic: oh shit, somehow it didn't work. Then she continues, "I've been thinking the exact same thing. I mean, we all spend all this time and money on fashion, trying to make sure we keep up with the latest trends -- more for us girls than you, but you know what I mean -- and it's such a hassle and waste! It'd be so much easier if we could just go around nude instead of dealing with that shit."

"No kidding?" you say, trying to sound genuinely surprised. Your heartbeat quickens and you feel butterflies in your stomach. "Why didn't you mention this before?"

"Come on, Sam," she says, rolling her eyes. "Can you imagine what mom would have to say about it? She may be open-minded, but there's only so far she'll go. Plus, I didn't want to upset you," she adds, smiling. "I'd think having a nude sister around the house would be a bit, uh, uncomfortable, wouldn't it?"

You laugh a bit at that. "Oh, I think I'd manage somehow," you tease.

"Ewwwww," she laughs, "I do not need that picture in my head, you perv!"

"I didn't say anything!" you reply, smiling back. "Anyways... mom loves you and respects your decisions, right? She might not exactly agree with it, or be happy with it, but I get the feeling she'll accept it, one way or another." I'll make sure of it, you add, silently.

Her smile fades a bit, and you can tell she's honestly worried as she considers your words. "You... you're sure it'll be okay?" she asks you, sounding surprisingly ****, and it melts your heart.

"Laura," you assure her with a genuine smile, "it'll be fine." She reciprocates, and her own smile echoes yours. For a brief moment you feel really proud of yourself, being such an emotionally supportive sibling... until you suddenly remind yourself that you just altered her mind to make her into a nudist, for your own gratification, and it pours a bucket of water on your self-confidence.

Laura, meanwhile, is elated as she reaches down and pulls her tight, V-neck shirt up and over her head, exposing her ample (but not enormous) breasts nestled in a lacy white bra. Before you even have a chance to process this, she has already unclasped the bra and pulled it off, letting her perfect, milky white, conical breasts, fall free, each one topped with a tiny, pale pink nipple. This is no striptease, this is a person simply undressing quickly and efficiently, but your cock springs to attention nonetheless. You instinctively place your hands in your lap, aware of the bizarre juxtaposition of you covering up an erection while your sister is nonchalantly stripping naked next to you.

She quickly unbuttons and unzips her jeans. Rolling onto her back and lifting her hips a bit, she pulls both her jeans and panties off in one quick motion, revealing a neatly-trimmed triangle of golden pubic hair above the long, vertical slit between her legs. You can't see anything more, the way she's sitting, but what you do see is enough; you're positive your heart is about to shoot right out of your chest.

Laura leans back on the couch, thoroughly relaxed. "Oh my god," she sighs, "you have no idea how good this feels. Thank you so much, Sam, for convincing me to just be myself."

How ironic, you muse, and that stab of guilt hits you again. Because I just changed what 'yourself' means. But you just nod and smile in response, stimuli swirling around too quickly for you to handle.

"Hey," she continues, "why don't you get rid of your clothes too? I mean, after what you said and all..."

Despite yourself, you blush furiously; you aren't ready for that just yet, but she has a point -- after what you said to her, logically she'd expect you to embrace nudity too. You briefly search your brain, and come up with a good excuse. "I'd... love to," you explain, "but it's probably best that we let mom deal with one of us at a time, don't you think?"

She pauses, then nods. "Hmm, yeah, that's probably a good idea," she agrees. "We don't want her having a heart attack or something." Her expression briefly shifts to one of fear again. "But... you'll back me up on it, right?"

"Oh, pssh, of course!" you exclaim, and you honestly mean it, Manipulator or no. "You're my sister!" A sister whose every inch I can observe right now. Whose soft, alabaster breasts are fully exposed. Whose little pink nipples tease me. Whose shapely legs are showing off a golden blanket of soft hair... You shake your head briefly, trying to focus. Yep, you think, definitely crossed a line here.

She grins at you with relief, and the two of you return to watching the TNG cheese-fest. You both make the occasional smart-ass joke and laugh together. It's nice, and you almost forget that she's literally sitting next to you naked, to the point where each time you look at her you do a brief double-take.

Once the show is over, Laura stands up. "That was fun, but I'm exhausted," she sighs. "Thanks for cheering me up... and letting me be myself. I'm gonna head to my room." You nod in response; you definitely don't want her to leave, but at the same time you're a bit grateful, as there's something you desperately need to "take care of".

After she's gone, you practically leap off of the couch, run up to your room, and lock the door. You grab your lotion and paper towels, collapse onto your bed, pull off your pants, grab your cock, and jack off as you have never done before, picturing her soft, sinuous curves, the delicate pink nubs of her nipples, the curly yet neatly brushed hair nestled between her legs... with a groan, you explode, shuddering, shooting so hard that a spurt of cum lands all the way up on your neck. You lay there, panting, mind foggy with hormonal bliss, basking in the afterglow...

...And then the guilt sets in. As your libido releases its hold on your mind, ever so briefly, the rest of your brain comes to terms with the fact that you altered your own sister's mind to make her a nudist at home. You were willing to put your own desire above the autonomy of another. The pangs of shame roll through you as you clean yourself up... but you also know they won't last long. Once your libido builds back up again, it'll all feel worth it. And you're already justifying it to yourself: you're just freeing her of her inhibitions, after all. Isn't that a good thing for all of us?

...Isn't it?