Note: This story was dynamically reformatted for online reading convenience.
 
 The Step-Sister by *Lady Lucia*

   Chapter Nine

   "Ask away," Sara said, "Claudia will be here all night.  A sleepover
with well behaved girls like us will be good for her.  Unlike her friends,
we're actually responsible and motivated to succeed in life.  Trust me,
sis. The sooner our habits start to rub off on you, the better.  Isn't that
right, girls?"

   Celeste ever so slightly cocked her head to the side.  She could
obviously tell something was up, as Claudia wasn't the type to stand idly
by and allow a judgy remark like that to go by uncontested.  Even if there
was plenty of truth in Sara's words, normally Claudia would have snapped
out a witty retort within seconds.  "That's right," Celeste said.  Sitting
up a little bit on the sofa, she asked, "So, why the change of heart,
Claudia?"

   `Because my step-sister is a fucking bitch and stole all my shit and I
was stupid enough to let her keep screwing with me instead of turning
around and walking back out the front door like I should have.' Retrospect
was almost as much of a bitch as Sara was.  While the fallout of all of the
preppy girl's threats would have been an enormous pain, it would at least
have been a ripped band-aid that Claudia could wrap her head around in
terms of what would happen at home and at school.  Avoiding those things,
however, had resulted in a lot of unexpected twists and turns that she
probably would have chosen against if the two options had been more clearly
laid out from the beginning.  To her credit, Sara had been clever. 
Stringing Claudia along step by step ensured that she stayed committed to
what she had signed up for.  Being proper and responsible, to Sara's
standards.  "Because I like trying new things," Claudia said.  Technically
true, and playing with honesty was certainly a fun way to turn this around
on her sister, "And it's not every day that I get to be naked in Sara's
room.  It was almost a porno, except she didn't actually use the phrase
`step-sister' when telling me to strip.  No fun, I know."

   The girls' expressions in response to Claudia's bluntness gave her a bit
of satisfaction, but she knew calling Sara out like that wouldn't do much.
These were her best friends, after all, and they weren't nearly as `well
behaved' as they liked to act and dress.  Claudia should know; she had been
around for enough of their sleepovers to know that they drank and fucked
around just like Claudia's skater friends.  The only difference was that it
was wine and/or fancy cocktails, and that they fooled around with boys that
were equally as `classy.' If both sides wanted to keep up a certain
reputation, then neither partner would openly brag.  Of course, Sara had
more or less explained that concept earlier with the plug-proper on the
outside, while still being less than proper in a more discreet way.

   "She was naked?" Celeste asked.  She raised an eyebrow, but patiently
waited beyond that.

   Easily spinning things from her own perspective, Sara nodded.  "Of
course.  I had to dress Claudia from head to toe, including underwear. 
Plus she needed a good spanking before trying anything on."

   At that, Harriet finally spoke up.  "Wait, you spanked her?!"

   "Mm hmm," Sara hummed, "She has a whole host of things that she needs to
be punished for.  And who better to carry out that punishment than her
perfect sister?"

   Asking the more important question, Celeste clarified to Claudia, "And
you let her spank you?"

   Thankfully, Claudia had trained for stuff like this.  Years of hanging
with her crowd had gotten her used to brushing off pretty much anything. 
Sometimes it was simply a matter of redirecting things back to the other
person or, when called for, merely leaning into a taunt and taking away its
power by owning it.  It didn't fully translate to preppy girl speak, but
the basic concepts still applied.  "Of course," Claudia shrugged, "How
could I turn down experiencing my sister's kinky side.  Sorry, my
step-sister's kinky side." Because if Sara knew about the whole lesbian
thing that Claudia thought she had been more low key about, then clearly
her best friends would already know as well.  "It was great.  She had me
over her desk, and-" A vibrating pulse below her waist caused her to
falter. It was more from surprise than pleasure, but still enough to
interrupt both her words and her train of thought.  Sara had just used the
plug on her!  While the silicone toy had a remote that went with it,
Claudia never expected her allegedly vanilla sister to know that. 
Especially since stealing everything from her room must have taken a bit of
time.  And yet, she had gone through the effort to explore things like
Claudia's little chest of toys.  Either she had experimented with this and
that to figure out why there was a remote in there, or maybe she had looked
it up.  Regardless, the hand tucked behind Sara's back had to have control
of the silicone teardrop that had been crudely pushed into Claudia's ass.
"-And she just fucking went for it." Resisting the urge to turn to Sara,
Claudia completed her thought.  It had to be her sister, as she could see
the other girls' hands.  Just like everything else Sara had put Claudia
through so far, it was clear that the girl didn't have many boundaries when
it came to making her sister uncomfortable.

   Sara sighed.  "We talked about this, Claudia.  `Vulgar language' is on
your list, remember?"

   "Ooh, she has a list?" Celeste asked, "What else is on there?"

   "Oh, you know," Sara said, "Stuff like `slutty clothes,' which we
already rectified.  We're still working on her attitude and her swearing.
There are some school things, too.  You can take a look at it when we head
upstairs; feel free to add anything, of course."

   "Of course," Celeste smirked.  She was starting to get the picture. 
"Are you the only one that's allowed to spank her?  I wouldn't mind getting
some revenge for all those times Claudia was rude to us."

   Assuming the other girls knew about her sexuality, Claudia went for a
more suggestive response.  "Would you like me naked for it?" she asked,
"Because-" And then, Sara pressed another button.  It was another pulse,
rather than the kinds of vibrations Claudia preferred to give herself, but
this one was more exaggerated than the previous one.  Since the plug had
been shoved in without lube, everything was a little more sensitive down
there.  Exhaling the slightest bit from the short wave of reluctant
pleasure, she shot her sister a glare.  "Because I thought only Sara was
allowed to undress me and play with my ass."

   In response, Sara repeated the effectively sharp pulse.  "Language,
Claudia." She managed to keep a straight face, even when Claudia
subconsciously squeezed her hand with a bit of an eye flutter from the
latest use of the remote.  "And no, Celeste.  You can't spank her for
revenge." Right away, however, she clarified beyond that.  "Because this
isn't about revenge.  This is about teaching Claudia to be a proper and
responsible girl.  So you're welcome to punish her for any swearing from
here on out.  This is her last warning on that front.  But I've already set
things up regarding her past transgressions." With that, she switched the
plug into a constantly vibrating state, but on the lowest and therefore
most quiet setting.

   Claudia was stunned, to say the least.  While she was plenty shameless
when it came to plenty of things, it's not like she had ever been actively
turned on in public.  The pulses alone were enough to draw out a hint of
warmth between her legs.  It had to be purely physical, as she was pretty
selective when it came to sex toys.  She only kept the ones that worked
well on herself, save for anything that could potentially be used on a
partner.  There was no way the secrecy was getting her off, as these were
the last girls she cared about when it came to impressions.  Also, how did
Sara know what she was doing?!  Did she practice enough with the remote to
know how to use it by touch alone?  Or was she merely guessing and/or
pressing random buttons?  Regardless, it was working more than Claudia
would have liked.  Especially once the dull yet constant vibrations kicked
in, making her knees subtly buckle.  She had enough self control to push
back against the pleasurable sensations and keep her cool with the company
present, but the element of surprise was going to make it an uphill battle.

   "Shame," Celeste muttered.  She glanced at the girl to her left.  "What
about you, Harriet?  Want a turn spanking Claudia, or will I only have to
share with Sara?"

   "Whatever," Harriet shrugged, "Although it's not like she has to be
naked for it."

   "That's right," Sara said, "For once in her life, Claudia's wearing a
skirt.  Honestly, I'm surprised you don't wear them more often.  You know,
for the easy access and all that?"

   "Because I'm a slut?" Claudia rolled her eyes.

   Sara nodded.  "A lesbian slut.  But that access will work well tonight
in other ways.  The next time you swear, Clauds, it's going to be skirt up
and underwear down.  I've already had a turn, so Celeste and Harriet will
have to do rock, paper, scissors for it."

   "Celeste can have it," Harriet said, "I can tell she wants it more."

   "Of course I do," Celeste grinned, "It's not every day that I get to
spank a bottomless goth girl."

   The callback to some of Claudia's own words weren't lost on her, but the
dull thrum of pleasure coursing through her body made it even more
difficult to come up with a solid response.  She was already playing Sara's
`proper and responsible' game, and the physical distraction just further
complicated things.  It was always annoying when people incorrectly used
the word `goth,' as that's not what she was, but it's not like correcting
it would teach any of these preppy girls the difference anyway.  Although
honestly, Claudia would prefer to be goth at the moment, if it meant
getting out of Sara's stuffy clothes.

   "Well, ideally no one will be spanking dear Claudia.  If she behaves as
well as she is dressed, then we can all have a nice night together.  Isn't
that right, sis?"

   "Right," Claudia muttered.  This was not the deal.  As soon as she and
Sara were alone again, they were going to sort this out.  Or maybe Claudia
could just run upstairs and grab her phone from its hiding spot.  Maybe it
was time to pull the plug on this whole thing, both literally and
figuratively, and simply leave.  This had all seemed manageable at first,
but letting it drag on all night long?  With Celeste and Harriet here? 
That was a tall order.

   "Mm hmm.  We'll see," Celeste said, "So, what now?"

   "Well, now that we're all here . . .  " Sara trailed off.  In the
momentary silence, she pressed another button on the plug's remote, "What
do you all think?  Stay in, or go out?"



   Where will the girls go next?



   Chapter Ten

   "I mean, we just got here," Harriet pointed out, "Do we have to decide
right now?"

   "Or maybe Claudia should decide," Celeste grinned, "Either way, she's
stuck with us, right?"

   Claudia was only just able to process the question.  So far, the remote
control plug had been more of a nuisance than anything else.  The fragments
of reluctant pleasure had been outweighed by the fact that she was
technically in public, albeit just with three girls in her own house.  The
prudish outfit and her current situation didn't exactly put her in the most
sexy headspace.  Still, physical was physical, and the latest vibration
pattern Sara had switched to was enough to make this more of a battle of
self control.

   She still had a reputation to maintain, especially while her current
pink and preppy attire was thoroughly undermining her usual image. 
Steadying herself against the wave of pleasure that threatened to make her
eyelids flutter, Claudia steeled herself and put on her classic annoyed
look that she often used when Sara's friends were around.  "I really don't
care," she said.  'Ugh!  Managing to keep the groan internal, Claudia
immediately checked to see if either of the girls had noticed.  Apparently
her body had been affected all the way up to her voice, and her words came
out faintly weaker than the cold delivery she normally gave so
effortlessly.

   "So typical," Sara said.  The other girls might not have caught on yet,
but Sara had been sisters with Claudia long enough to recognize the more
subtle things.  It was more about the shift in body language, as well as
how obvious it was that the alternative girl was trying to keep her
composure with every little curve thrown her way.  "You know, girls,
Claudia is quite the lesbian slut.  In fact, I bet she'd get turned on by
her own sister."

   Claudia's impulse was to flip Sara off, or retort with at least one
swear word involved, but she held herself back.  The recent reminder about
such language had been enough to make her hesitate this time around, as
there were definitely some settings on the plug that Sara was saving for
her twisted version of behavioral training.  Instead, Claudia merely said,
"Step-sister.  And you were the one ogling my naked body earlier."

   Despite the lack of cursing, Sara sent another effective pulse with the
remote.  For a moment, it seemed like the timing was related to Claudia's
retort.  However, Sara had something completely different in mind.  Rather
than relenting like before, she pressed the same button again.  And again.
Stepping just behind Claudia, Sara placed a hand on her shoulder and leaned
forward so her lips were inches from her ear.  As she did so, Sara smirked
and gave a look to her two friends sitting on the sofa.  Speaking in a
stage whisper, so everyone could hear, she said, "You're a fucking bitch,
Claudia.  And a dirty little whore." With that, she flicked out her tongue
to lick her step-sister's ear, and cranked the plug to its highest setting.

   Claudia didn't realize what Sara was leading up to until it was too
late. The toy penetrating her backside was already a lot to handle, as the
more intense vibrations were making her knees go weak despite her efforts
to keep her body's urges under control.  Unfortunately, bottling everything
just made the eventual release that much more obvious when she could no
longer keep things sealed.

   Her ears were one of her weak spots.  There was no way Sara knew that,
which made her move a frustratingly lucky guess when paired with everything
else.  The insulting whispers in an overt and over-exaggerated sultry tone,
the unexpected lick, and . . .  Claudia wasn't prepared for the way her
sister capped things off, with an aggressive series of vibrations below. 
It wasn't enough for an actual climax; she wasn't that far gone.  And yet,
Claudia couldn't stop a breathy moan from escaping her lips.  She managed
to keep her head from tilting back, and her eyes mostly remained open, but
the damage was done nonetheless.  Clearly everyone had heard her audible
exhale of pleasure, and Claudia actually felt a little damp between her
legs as well.

   "Oh, my God!" Celeste gasped.  Less in judgment, and more in amusement,
based on her grin.  "Seriously?  That's all it takes for her?!"

   "Claudia!" Harriet chastised, although she also failed to stop the trace
of a smile from appearing on her face, "What the fuck?  She's your sister."

   For a moment, Claudia was frozen.  So far, she had gone through all of
this so coldly and logically.  Letting Sara spank her, plug her, and dress
her.  Letting Sara display her in the living room and explain things from
only one point of view.  Through all of it, Claudia had bitten her tongue
and bided her time.  Until this.  The plug was literally still vibrating
inside her at the high setting, and it wouldn't be long until something
more than a soft moan happened.  She couldn't just stand around and play
along, not when Sara was taking things so far while not giving the
slightest hint that this would be over any time soon.  Without a light at
the end of the tunnel, and after this latest turn of events, Claudia was
finally coming to her senses.

   It would have been better to storm off from the very beginning.  Now
Sara still had everything from before, plus had succeeded in everything
that had followed Claudia stepping into the fully empty bedroom.  Sunk cost
fallacy only went so far, however.  Better to call it quits before she lost
even more of her dignity and, more importantly, before she truly lost
control in front of Sara and her friends.

   "I need to pee!" Claudia blurted out.  It was quite unlike her usual
brooding demeanor, but she didn't care.  Not waiting for permission,
because she was a fucking adult, she abruptly stepped away from Sara and
did her best to walk out of the room like a normal girl despite being
plugged and turned on.

   "Mm hmm," Celeste taunted, "That's what you have to do."

   "Come right back," Sara said.  She wasn't going to attempt to stop her,
then.  "You're ours for the night, remember?  Until you prove you can be a
proper girl, just like us."

   Harriet said something, too, but Claudia was already tuning all of them
out.  Although the nearest bathroom was just down the hall, she opted for
the one up the stairs.  Not that she actually planned on going in there. 
At the moment, her entire plan was to keep moving.  The plug's remote only
had so much range, and putting herself farther away from Sara felt more
efficient than dealing with the process of removing it while it was still
vibrating.  Also, how did Sara's friends not hear anything?  While
Claudia's cheeks muffled most of the sounds, it still felt like the hum of
the sex toy was so obvious.  Then again, she was the one it was being used
on, so it could just feel more apparent to her while not being particularly
noticeable to anyone else.

   Claudia planned on stopping just to retrieve her phone, but she ended up
just short of the linen closet.  Clasping a hand over her mouth and leaning
against the upstairs hallway wall for a moment, she breathed out a longer
and more desperate moan than before.  Sara had yet to turn the plug down
from the high setting she had set it to downstairs, and it was getting to
the point where Claudia was wondering if she could just take a minute or
two to do what Celeste teasingly implied and get herself off in the
solitude she had given herself.

   No.

   She needed to capitalize on the opportunity before one of the girls came
to look for her.  Legs still a bit shaky from the constant pleasure,
Claudia pressed forward the last few feet to the closet.  Her phone was
still there.  Good.  She would have been beyond frustrated if Sara had
somehow figured out where Claudia had stashed it.

   As painful as it would be to let one of her friends see her like this,
Claudia would have to deal.  There was probably a way she could spin it as
over the top irony, or roleplaying as her stuck-up sister, or something. 
For the time being, however, she merely stuffed the phone into her bra
without giving it so much as a glance.  First, she had to sneak out.

   Going for her usual route, she next made her way into her bare bedroom
and gave the finger to the camera in the upper corner.  She opened the
window and gripped the sill for a few long seconds as she continued to
combat the waves of pleasure coursing through her body.  Still in range,
then.  Swinging one leg over followed by the other, assuming her limbs
wouldn't give out that much once she put herself in escape mode, Claudia
climbed out onto the roof and carefully stepped over to the nearby tree
after belatedly making sure no neighbors or preppy girls were watching. 
Taking a huge breath, not loving the idea of doing this while she was
turned on, Claudia took a little solace in the thought that the descent
would probably mess Sara's nice clothes a little bit.

   It was only two stories, and she could practically make it down
blindfolded at this point.  Even with shaky legs, it only took twenty
seconds or so before her feet were on the ground.  Claudia was used to
leaving at night, so it was only easier in broad daylight.  She let out a
quiet sigh of relief.  It was still going to be annoying to walk around
plugged until she found somewhere private to deal with that, but she'd
probably be out of the remote's range after a few yards.

   The momentary victory was ruined, however, when Sara's voice pierced her
thoughts of where to head next before contacting her skater friends from
earlier.  "You're so fucking predictable," Sara scoffed.  She was on the
stairs of the front porch, already making her way down and towards Claudia.
"For real, sis?  I know this is what you do like every other night."

   "Screw you, Sara!" Claudia snapped, "I'm leaving."

   "Like hell you are." Sara narrowed her eyes and didn't once break her
stride as she crossed the edge of the yard.  Remote still in hand, she made
a show of pressing a button that switched things from the nonstop
vibrations to pulses that were equally as assertive.  Something to keep
Claudia off balance, just as she had gotten used to the former variety. 
"I'm not done with you yet.  Proper girls don't climb trees in nice
outfits, and they certainly don't moan in polite company."

   "You're one to talk . . .  " It was far more difficult to retort when
she was still dealing with everything below her waist.  Maybe taking it out
would have been the better idea after all.

   "That's enough.  You're coming back inside.  Right now."

   "And you're going to make me?"

   At that, Sara smirked.  "If I have to."



   What does Sara have in mind?

   Using Claudia's handcuffs and locking her wrists together?

   Dragging her back inside by her hair?

   Or finishing the job that the plug started?