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          by Van
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          Chapter
                  9 
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    Naked and two
        paces behind, Elke followed Abby through the Magnificent Modern
        Mountainside Mansion.  Her thoughts were divided between
        Donna, who was back in the Yoga Studio—languishing, naked,
        stringently hogtied (in Elke's opinion), and ball-gagged—and
        Mikki, her ginger-haired dweeb of a BFF, who was off somewhere
        being punished by Lilly (in some unspecified manner).  The
        situation was confusing and Elke was conflicted.  Also, she
        had to admit, she found herself somewhat fascinated by
        everything that was happening.
        
        And then, as Elke was somewhat preoccupied—"Oh!"—she very nearly
        ran into Abby when her smiling hostess/rigging-instructor
        stopped and turned to face her.
        
        Abby placed her hands on Elke's shoulders to prevent the
        collision.  "Easy, Clever Girl," Abby chuckled, then
        pointed down a nearby hallway.  "Go get dressed, darling,"
        she suggested (ordered), "then meet me in the kitchen.  You
        can help me with supper."
        
        Elke's stomach growled.  She'd missed lunch (being
        otherwise occupied), so supper sounded good, and she was more
        than willing to serve as Anny's assistant cook.  "Okay,"
        she answered, gravely, then padded away, heading for her
        assigned guest bedroom.  She paused and turned, finding
        Abby smiling and (apparently) watching her departure (including
        her young, blond guest's naked back, butt, and legs).  This
        caused Elke to blush (of course).  "Uh... casual?"
        
        Abby's smile never wavered.  "Yes, dear.  We'll be
        having a barbecue on the main deck, so by all means,
        casual.  However, bikinis are only required at poolside,
        so wear something else."
        
        Elke nodded (still blushing), then spun on her bare heels and
        resumed padding away.  She could almost feel Abby's
        leering gaze on her nude body.
        
        The guest bedroom was exactly the same as she remembered it,
        which was hardly a surprise.  She quickly changed into
        panties, bra, faded jeans, and one of her favorite
        t-shirts.  Is was black, French-cut with a scoop neckline,
        and printed on the front and back was the message:
      
      "COME TO
            THE MATH SIDE; WE HAVE π."
      
      Elke had other "math
        nerd t-shirts," as Mikki scathingly called them, but the "Math
        Side" shirt was her favorite because everybody got it, STAR WARS
        fans were especially appreciative, and she didn't have
        to explain anything to non-math majors that they should be
        able to remember from their basic educations, like irrational
        numbers, the Pythagorean theorem, quadratic equations, the
        Fibonacci sequence, etc., etc.
        
        She considered donning anklets and sneakers, but she'd been
        running around the mansion in her bare feet all day (like
        everyone else, as far as her frazzled brain could remember), and
        her feet were doing just fine without protection, so why
        bother?  She used the brush and comb set atop the chest of
        drawers to straighten her hair, then used a handkerchief to
        clean her glasses.  She returned them to their proper
        position perched on her nose and tucked behind her ears, took a
        few seconds to gaze at her reflection... and heaved a
        sigh.  She then turned and exited the bedroom to report to
        the kitchen.
        
        Halfway to her destination, Elke paused... thought long and hard
        (meaning about a dozen heartbeats)... then decided it was time
        for her to show a little spine!  Lips pursed in a
        determined pout, she padded to the Yoga Studio.
        
        Upon arrival at said studio, Elke was in no way surprised to
        find Donna still resting on her tummy on the floor, naked,
        hogtied, and ball-gagged.  As Elke approached, she noted
        the twinkle in Donna's pretty blue eyes and realized Donna's
        piteous, ball-gagged grimace was actually a glad-to-see-you,
        ball-gagged  smile.
        
        Without saying a word, Elke knelt at Donna's side and attacked
        the key knot of the cross-legged-box-tie-hogtie Abby had so
        carefully and expertly crafted for her educational benefit.
        
        "Mrrrf?" Donna inquired as Elke shifted her derigging efforts
        into high gear.
        
        Elke deliberately ignored Donna's ball-gagged inquiry and
        continued untying, unwrapping, and unhitching the intricate,
        orderly arrangement of rope.  Elke wasn't at all sure Donna
        was on board with being freed by anyone other than her
        "sadistic" red-haired spouse, but she didn't care.  Elke
        would rather take the heat for being a interloper in Abby and
        Donna's side-game than stand by and watch Donna suffer (assuming
        she was suffering).  It was her duty to do
        something.  Besides, if they didn't want her to make
        illegal moves, they could explain the damn rules of the damn
          game!  So there!
        
        So... it was Elke's cunning plan to remove Donna's ball-gag
        last.  That way she wouldn't have to argue with her about
        the rescue.  It was all perfectly logical.
        
        Eventually, the last of Donna's bonds melted away... and Donna
        was free.  The naked, ex-prisoner climbed to her bare feet
        (gracefully, Elke noted), executed a back-arching,
        reach-for-the-sky, full-body stretch (also gracefully, Elke
        noted), then unbuckled and removed the ball-gag herself.
        
        Elke watched (a tad nervously) as Donna worked her jaw,
        licked her lips, smiled—"Oh!"—and pulled Elke into a warm
        embrace.  Elke blushed and returned the hug.  At
          least she isn't angry.
        
        "Kind and clever girl," Donna purred, continuing her warm (and
        embarrassingly naked) hug.
        
        Elke endured the fleshy ordeal with stoic tolerance.  She
        even returned the embrace.
        
        Finally, Donna released her hug and took a step back, her hands
        on Elke's arms and smiling at her savior's blushing face. 
        "Thank you."
        
        "Uh, you're welcome," Elke muttered.  "Supper.  Abby
        says it's gonna be a barbecue on the main deck."
        
        Donna nodded, continuing to smile.
        
        "Dress will be casual," Elke added.
        
        Donna leaned in and planted a kiss on Elke's semi-startled lips,
        then turned and padded away.  "See you there," she said...
        and was gone... strong back, firm butt, shapely legs, graceful
        feet and all.
        
        Elke heaved another sigh, then turned and stared down at the two
        jumbled coils of rope and the ventilated ball-gag that had been
        Donna's bonds.  She supposed she ought to coil them up...
        or something... but she wasn't at all sure she'd be able to meet
        Abby's no doubt exacting standards of proper rope storage. 
        Best to wait, she decided, then padded towards the
        kitchen to help her hostess with the barbecue... and possibly
        face the music.
    
    
    Naked, her
        hands atop her head, and her ginger curls fluttering behind her
        back, Mikki padded down the subterranean corridor in Lilly's
        wake.  Resistance was... futile?  Okay, she could
        sprint away and make Lilly chase her down, but...
        ●  Mikki was tired.  It had been a long,
          trying day, with Mikki being both the top and the
          bottom (like now).  There was also the issue of the three
          crashing orgasms Lilly had so recently extracted from her
          formerly bound and gagged body.  Mikki was tired.
          
          ●  Mikki was hungry.  A great deal of proverbial
          water had passed under the proverbial bridge since the
          excellent breakfast they'd all enjoyed at poolside.  Her
          tummy was grumbling.
          
          ●  Libby was hot.  Striding down the
          corridor and past steel door after steel door—dressed in her
          sexy boots, sexy leather pants, and sexy leather bra-top—her
          shining, straight, sexy pageboy swaying as she walked—Donna's
          little sister was smokin' hot!  Mikki had no
          choice but to continue ogling her in submissive terror.
          
          ●  Mikki was... curious?  Tired and hungry, yes, but
          she definitely wanted to see whatever Lilly was gonna
          do to her next.  She could always shriek and flee in
          horror if it was something bad.
        
        Finally, they arrived at their intended destination, meaning
        Lilly's intended destination as Mikki had had no idea
        whatsoever where they'd been heading.  Also, you've seen
        one concrete, dimly lit, menacing, institutional, subterranean
        corridor of steel doors, you've seen them all.  Anyway,
        they'd arrived.  Mikki watched meekly (and nakedly) as
        Lilly unlocked a door and led her inside the chamber beyond.
        
        Mikki looked around.  The space was similar to the
        "dressing-room" where Lilly had outfitted her with Abby's
        tawny-brown-leather-with-bronze-tone-hardware custom-made and very
        pretty ensemble.  The walls were lined with the same
        metal lockers and cabinets, but in addition, there was a small,
        waist-high worktable, a collection of hand tools hanging from a
        peg-board, cans of lubricant and metal polish, and a stack of
        neatly folded shop rags.
        
        Click!  Mikki flinched.  While she'd been busy
        checking things out, Lilly had closed the door and locked them
        inside the chamber!  Mikki watched Lilly stroll to a
        cabinet, open its door, and lift something clattering and
        metallic off a large hook.  And from the way Lilly's biceps
        tensed, the something in question was at least a little
        heavy.  Lilly turned, the whatever-it-was in her hands and
        a sinister smile on her beautiful face.  And that was
        when Mikki realized what Lilly was carrying and her eyes popped
        wide!
        
        The object in question was a full set of shiny steel "slave" or
        "serving" chains!  Collar!  Manacles! 
        Shackles!  Connecting chains!  A full set!
        
        Instead of being an 'object,' maybe it's 'objects,'
          plural, she reasoned; however, it looks like
          everything is permanently joined, so... singular. 
        There were flush-mounted locks embedded in the walls of the
        collar, manacles, and shackles, and no dangling padlocks. 
        Another argument for singularity.  Also...
        
        Mikki's empty tummy fluttered, a thrill quivered between her
        legs, and her throat was suddenly dry.  It looked like
        another of her deepest, darkest fantasies was about to come
        true!
        
        "Lillyyyyy!" Mikki whined as Lilly used a small key to unlock
        the collar.  She then fit the steel torus around Mikki's
        neck.  Click!  Mikki's hands remained
        submissively atop her head.  Also, her eyes remained wide
        and she continued offering no resistance.
        
        "Quiet," Lilly purred as she unlocked the manacles. 
        "Wicked, naughty girls who do wicked, naughty things have to be
        kept under strict control."  She lifted Mikki's
        left hand from atop her head and locked it in a manacle—Click!—did
        the same to her right hand—Click!—then knelt and locked
        her ankles in the shackles.  Click!  Click!
        
        Mikki blinked and tugged on her new bracelets.  The chains
        clinked and rattled in response.  The manacles were hefty
        and close-fitting, and the same was true of the shackles. 
        Her pussy was still purring in protest (or something), and her
        gorgeous, full lips pursed in what she knew to be her devastatingly
        effective Pitiful Pout.  Her nipples were also outraged
        and pointing in solidarity.
        
        Lilly stood, took a step back, crossed her arms under her
        breasts, and smiled her sinister, gorgeous smile.  "I think
        I'll ask Abby if I can keep you like this, naked and in
        chains.  That way we'll all be safe from your evil
        depredations."
        
        It would seem Lilly was immune to Mikki's Pitiful Pout.  
          Bummer.  Also, if "evil depredations" was a fair
        description of her recent actions, everybody but Elke deserved
        to be naked and locked in chains.
        
        Mikki tugged on her chains, again.  Everything was smooth
        and "comfortable."  All the edges of the collar, manacles,
        and shackles were rounded and fit her neck, wrists, and ankles
        with anatomical precision.  Nothing pinched or abraded her
        skin.  As for weight, yes, the chain set  was heavy,
        but distributed between her neck and four limbs, it wasn't what
        she could call a burden... for now.
        
        Mikki shuffled her fettered feet and tugged on her manacles,
        again.  In terms of Mikki's slave-girl fantasy, the chains
        were spot on.  Her body shivered in agreement, and
        despite the more-than-adequate heat in the chamber, gooseflesh
        was blossoming on her fair-skinned, naked, captive body. 
        In counterpoint, her cheeks were blushing bright pink. 
        "Lillyyyyyy," she whined in a near whisper.
        
        Lilly continued smiling (leering) at her naked and chained
        captive.  "And now," she said finally, "we're going
        upstairs for supper, and if you know what's good for you, you'll
        speak when spoken to and be respectful of your elders. 
        Otherwise..."  She nodded towards the ominous
        cabinets.  "I have a scolds bridle that I know will
        fit you perfectly."
        
        Mikki's eyes widened, again, and her pout became an "O" of
        amazement.  A scolds bridle??  Talk about the
          icing on the slave-girl fantasy cake!  On the other hand—Mikki's
        tummy grumbled again—you can't eat supper if your head is
          locked in a steel cage.  Mikki swallowed, nervously,
        and did her best to appear submissive.  (It wasn't much of
        a stretch.)  "I'll be good," she whispered. 
        "Eek!  Mrrrf!"  With lightning speed, Lilly had pulled
        her into a tight embrace and was kissing her... with tongue!
        
        The kiss lasted a while... long enough for Mikki to remember her
        manners and start holding up her end of the lip-smacking and
        tongue-probing.
        
        Finally (and taking the lead, of course), Lilly pulled
        back.  Her right hand had a firm grip on the
        slave/serving-chain-set's vertical chain, just below Mikki's
        collar.  "Don't be too good," Lilly purred. 
        "I like my slave-girls on the plucky side.  I like
        having an excuse to punish them."
        
        Mikki felt her lips curl in a coy smile (just a little), but
        hoped she wasn't being too impertinent.
        
        Apparently, with respect to attitude, the naked-ginger-in-chains
        was getting things right, because, still tightly gripping her
        chain, Lilly led Mikki to the door, unlocked the lock, then led
        her from the chamber and down the corridor.  Mikki had to
        contend with the shackles' hobbling chain, but she managed to
        adopt a clattering gait and kept up with Lilly's determined
        stride without tripping.
    
    
    Elke entered
        the kitchen to find Abby loading a picnic-style wicker basket.
        
        "There you are, darling," Abby said with a warm smile. 
        "Did you have trouble deciding what to wear?"
        
        Elke blushed (for some reason).  "Uh, no, I...  I
        didn't.  Hi."  The proper thing would have been to
        explain that she'd been delayed by taking the time to untie
        Donna (and thereby ruining Abby's expertly crafted instructional
        box-tie-hogtie), but chickened out instead.  Elke didn't
        regret her merciful action, but delaying the consequences for as
        long as possible seemed prudent.  And while Elke might like
        to think she'd arrived at her entirely sensible
        silence-is-golden policy after well-reasoned internal debate, it
        was actually a knee jerk reaction to Abby's smiling
        question.  It just happened.
        
        "No matter," Abby purred, then closed the basket's lid and
        grabbed one of its handles.  "Here," she said, nodding at
        the other handle.  "Give me a hand."
        
        "Sure."  Elke scrambled forward, grabbed the indicated
        handle, and helped Abby lug the basket to the outside
        door.  They crossed the threshold and onto the spacious
        deck beyond.  It was about the same size as the
        pool-adjacent deck down below, and like the pool-deck, had a
        complete outdoor kitchen off to one side and a glass-top dining
        table with powder-coated metal chairs.
        
        "Bratwurst with grilled peppers and onions, toasted buns,
        Caprese salad, and... Bush's Best Grillin' Beans!"  She
        reached into the basket and produced a 22 oz. can of the beans
        in question.  "I suppose I could cook beans from scratch,
        but why bother?  These are tasty."  She paused to
        preheat the grill by turning the appropriate knobs to 'high,'
        then resumed unloading the basket.  "I won't need your help
        for a few minutes, darling, so why don't you enjoy the scenery
        while I get everything ready."
        
        "Uh, okay."  That made sense.  The grill had to heat
        up, so it was way too soon to start toasting buns, heating the
        beans, or grilling the peppers and onions.  Elke strolled
        to the deck railing and gazed up at the mountains and down at
        the valley below.  The sere, rocky, scenic vista was more
        or less the same as the view from the pool-deck below, just off
        to the side.  Thanks to the rocky terrain, the upper deck
        was protected by the same ten-foot iron fence that protected the
        pool.  Elke was safe from marauding bears, hungry coyotes,
        or browsing deer.  The watering hole and birdbath water
        feature beyond the fence was directly below, but at the moment
        none of the local wildlife were availing themselves of its
        amenities.
        
        "Oh, Elke!" Abby called out, turning to smile at Elke and point
        at the door to the kitchen.  "One thing you could do
        for me is fetch the beer.  There's Boston Lager in the
        beverage cooler on the left side of the sink.  I think we
        can start with two six-packs."
        
        Just then, the kitchen door opened and Donna emerged.  She
        was wearing a pair of khaki hiking shorts (just as abbreviated
        and sexy as Abby's Daisy Dukes) and a light blue cotton blouse
        with the sleeves rolled up and its top two buttons
        unbuttoned.  Apparently, Elke mused, cotton
          blouses are staples of Abby and Donna's summer wardrobes.
        
        Also, Donna was carrying two six-packs of chilled bottles. 
        "Don't bother," she said as she carried the beer to the outdoor
        kitchen's refrigerator.  Obviously, she'd overheard Abby's
        request.
        
        Elke watched as Donna lifted three bottles from one six-pack,
        put the rest in the fridge, then popped the caps of the three
        bottles.  She planted a quick kiss on Abby's cheek and
        handed her a bottle, then padded in Elke's direction with the
        remaining two.
        
        "So," Abby called after her spouse, "you escaped?"  Her
        eyes were on Elke (who blushed in response).
        
        "Yes, darling," Donna chuckled.  "Exactly."  Her back
        was to Abby, so her beloved couldn't see the amused wink she
        gave Elke.
        
        Abby's gaze remained on Elke.  Clearly, she was
        skeptical.  "Did you now," she muttered, then returned to
        her meal preparations.
        
        Phew! Elke thought as she accepted a beer from
        Donna.  Dodged the bullet... I think.  Elke
        wasn't much of a beer drinker, but she was thirsty. 
        She took a sip.  The ice cold lager really hit the
        spot.  Then, Elke remembered her manners.  "Thank
        you," she said quietly.
        
        "You're welcome," Donna purred.
        
        "And thank's for not outing me as your rescuer," Elke added in a
        whisper, not that she thought Abby was actually fooled.
        
        "You're welcome for that too," Donna whispered back, then winked
        again.
        
        Just then (before Elke could do more than blush), they heard the
        kitchen door open, accompanied by a metallic rattling
        noise.  Mikki and Lilly had joined the party.
        
        Elke's blush deepened, her eyes widened and started blinking,
        and she took another chug of Boston Lager.
        
        Mikki was naked, blushing, and locked in what even Elke
        recognized as classic slave-chains: collar, manacles,
        and shackles with connecting chains, all of gleaming, polished
        steel!
        
        Lilly was dressed in knee-boots, skintight pants, and a bra-top,
        all in shining black leather!
        
        Elke continued staring, blushing, and blinking.
        
        "Hi, everybody," Mikki said as she shuffled, clinked, and
        clattered closer.  She was doing her best to affect an air
        of casual nonchalance, but wasn't carrying it off very well, not
        in Elke's opinion anyway.
        
        "Oh, good, the wicked malefactor is here," Abby chuckled.
        
        "And Mikki, too," Donna purred.
        
        "Ha-ha," Lilly stated, perfectly deadpan, then made a beeline
        for the refrigerator, frowned, then pulled out two beer bottles
        and removed their caps.  "We need way more beer,"
        she announced.  She then handed one bottle to Mikki, took a
        chug from the other, and strolled back towards the kitchen.
        
        Elke was still staring at her BFF.  She seriously doubted
        Mikki was wearing her current "attire" by choice.  "What
        happened to you, dweeb?" she demanded.
        
        Abby and Donna watched, smiling and sipping their beers.
        
        Mikki took a chug from her beer, then gave a chain-encumbered
        shrug (and blushed).  "Nothing much," she responded. 
        "I'll tell ya later."
        
        Elke shook her head in disgust.  "Dweeb!" she accused.
        
        "Delightful," Donna purred quietly.
        
        "Adorable," Abby agreed, then returned to her meal prep duties.
        
        Donna continued smiling at their delightful/adorable young house
        guests.
        
        Elke and Mikki continued being totally nonchalant and blithely
        unconcerned about Mikki's unconventional party attire.  
        (They also continued blushing, of course).
    
    
    The brats with
        peppers and onions had been delicious, as had the beans. 
        Elke and Mikki had downed two beers each, and were comfortably
        full (and a teeny-tiny bit tipsy).
        
        Conversation before, during, and after the meal had been light
        and pleasant.  The topic of plans-for-the-future came up,
        and Mikki and Elke confirmed that they were, indeed, job hunting
        so they could write and save for grad school,
        respectively.  They all had a swell time, despite
        Mikki's naked and chained situation.  Actually, even Elke
        had to admit her BFF's nude captivity had contributed to her
        enjoyment of the evening.  Watching Mikki's casual
        acceptance of her situation (and imperfectly hidden
        embarrassment) had been a hoot.
        
        Finally, after the sun had set (or almost set) and the
        deck-lights were burning, talk began to wane and it became clear
        Elke and Mikki were trying not to yawn.  It had been a very
        eventful day.
        
        Abby took command of the situation.  "Blue Eyes," she
        addressed her spouse, "help me clean up."  She then turned
        to Lilly.  "As for you, put the youngsters to bed."
        
        Elke was too tired to be offended by being called a
        "youngster."  Good night kisses were exchanged with Abby
        and Donna... then Lilly clutched Mikki's slave-chains just below
        her collar and dragged her away.  Elke padded in their
        wake.
        
        They arrived at the guest bathroom they'd been using since
        arrival, which with something akin to wonder and awe Elke
        realized had only been yesterday evening!
        
        Lilly supervised as they completed their evening toilettes,
        meaning brushing their teeth, scrubbing their faces, etc. 
        Elke was too tired to argue about the lack of privacy, and as
        for Mikki, given her role as naked prisoner, privacy wasn't much
        of an issue.
        
        Missions accomplished, Lilly led them to Elke's guest
        bedroom.  Elke assumed it was so Mikki could say goodnight
        before being dragged away to her guest bedroom (the one
        with the unusual carved trunk/damsel-prison that had started all
        this nonsense), but she was wrong.
        
        Elke crossed the threshold, then turned just in time to watch
        Lilly give Mikki a gentle shove into the bedroom.
        
        Lilly smiled (evilly) at Elke, then pointed at Mikki. 
        "She's your responsibility 'til morning, Four Eyes," she
        stated.  "Don't let her escape.  Nighty-night." 
        Then, before Elke could do more that blink in alarm (or
        something), Lilly closed the door—Click!—and the BFFs
        were locked in, apparently for the night!
        
        Elke turned and stared at her naked and chained best friend.
        
        Mikki stared back.  "Sorry," she said quietly.
        
        "For what?" Elke demanded.
        
        Mikki shrugged (rattling her chains in the process). 
        "Everything."
        
        Elke sighed and rolled her eyes (and almost managed not
        to smile).  "Dweeb," she huffed, then pointed to the
        bed.  "Keep to your side and don't hog the covers," she
        ordered, then padded away to the chest of drawers.
        
        Mikki's lips curled in a coy smile, she padded (and rattled) to
        the bed, pulled back the covers, and slid between the cool
        sheets.  She then watched as Elke disrobed and changed into
        her pajamas.  
        
        Their fun trip to visit Aunt Abby was not turning out
        the way she'd expected—to say the least.  And what was
        gonna happen tomorrow?  Mikki's favorite Oscar
        Wilde quote summed up her feelings: “The suspense is terrible. I
        hope it will last.”
        
        Costume change complete, Elke padded to the bed, removed and
        folded her glasses and placed them on the nightstand, climbed
        into bed, reached over and turned out the lights, then got
        comfortable.  Her back was to her naked and chained BFF.
        
        "Goodnight," Mikki said quietly.
        
        "Goodnight, Dweeb," Elke replied.  She knew Mikki wasn't
        offended by her use of the Dweeb nickname, not in general and certainly
        not in light of the events of the day.
       
    
    Smiling
        sweetly and reclined comfortably on the king-size bed she shared
        with her spouse, Abby lounged on her right side and gazed at the
        spouse in question.  She reached out and toyed with Donna's
        left breast... giving it a slow, gentle squeeze... then teased
        her left nipple.
        
        "Well," Abby purred, "all things considered..."  She gave
        Donna's nipple a playful tug.  "...I'd say it was a quite
        successful first day.  Don't you agree?"
        
        Donna did agree, but her beloved's question was rendered
        rhetorical by the two pairs of panties crammed in her mouth
        (Abby's and her own) and the strip of Elastoplast tape tightly
        plastered over most of her lower face.  Together with the
        panties, the tape made for a serious damper on
        conversation.  Also, Donna was naked and strapped to a
        rigid "rescue-stretcher" her darling little sister had crafted
        in her diabolical workshop.  Lilly had also fabricated the
        required straps of black nylon webbing with plastic snap-buckles
        required to secure a "patient" tightly, firmly, and safely in
        place, so Donna was helplessly bound and gagged.
        
        The aforementioned straps bound Donna to the board at her
        ankles, thighs, wrists, waist, upper arms, across her chest
        (above and below her breasts), as well as across her throat
        (loosely) and her forehead (tightly), pinning her head to the
        board.  The forehead strap was lightly padded, so as not to
        leave unsightly marks, but the rest of the straps were not
        padded in any way and were both broad and tight. 
        Donna could barely squirm, despite having strong incentive to
        squirm.
        
        A vibrator in the shape of an oversized capsule was lodged in
        Donna's pussy and a long, thin wire trailed from its base to a
        USB port on a small laptop computer on the nightstand on her
        side of the bed.
        
        Abby's hobby-related holy grail (one of her many hobby-related
        holy grails) was a computer-controlled system that could sense a
        damsel's state of arousal and compensate by increasing or
        decreasing its level of stimulation accordingly.  The goal
        was Torture by Total Sexual Frustration, of course, a computer
        program that "knew" when and how to modulate the intensity of
        its vibrator(s) in order to keep its "victim" quivering just
        below the level of orgasm.
        
        Lilly had promised to get right on the project as soon as she
        finished her PhD's in Neural Science and Computer
        Engineering.  In the meantime, she shopped around for the
        best home utility control software on the market and wrote a
        simple program that turned a vibrator on and off at semi-random
        intervals for semi-random periods and buzzed with randomly
        chosen modulated patterns that varied in intensity from "low" to
        "medium-low."
        
        It was the best she could do, Lilly explained, unless Abby could
        provide her with a test subject on whom she could conduct an
        extensive series of clinical trials to fine tune the system's
        performance.  She'd been smiling at her big sister while
        she explained all this, and Donna had made it very clear that
        she was not going to volunteer for any such
        experimental program.  Abby had smiled and thanked Lilly
        for her efforts... than began a casual, informal series of
        clinical trials of her own, using Donna as her sexually
        frustrated guinea pig.
        
        This evening Abby was conducting one such trial and Donna was
        her test subject, of course, (despite her pouting and
        not-at-all-believable show of great reluctance).  Donna was
        immobilized on the stretcher, the vibrating pill was safely
        lodged in her hoo-haw, and it was held there by a crotch-strap
        add-on to the rescue-stretcher's waist strap (another of Lilly's
        fabrications).  The vibrator in question was merrily (but
        rather weakly) buzzing away, and Donna's helplessly bound,
        gagged, and squirming body was flushed and shining with a patina
        of very unladylike sweat.
        
        "I know you have a strenuous day planned for tomorrow," Abby
        purred as she continued toying with Donna's nipple, "so I'm only
        going to let you play with your little friend until... say...
        midnight?"  The friend in question was the pathetically
        pulsating pill lodged in her increasingly moist and exasperated
        pussy, of course.  "I know you'd like nothing better than
        for me to leave you like this all night... but I insist." 
        And with that, she leaned close and kissed her beloved "victim"
        on her tape-gagged lips, then turned off the bedside lamp.
        
        All was dark and still in the master bedroom.  Abby could
        just barely hear the buzz of the pill quivering in her test
        subject's pussy.  She smiled, snuggled against her pillow,
        and closed her eyes.  She'd already set an alarm on her
        iPhone to wake her at midnight, so she wasn't worried about
        falling asleep and failing to release her beloved at the
        promised time.  Donna would be getting at least some
        beauty sleep this evening.  That said, however, Donna had a
        habit of being very insistent when she was released
        from testing her little sister's technological terror.  So,
        following her release, extended necking and non-frustrated sex
        would almost certainly ensue.  It was highly probable
        neither one of them would get to sleep before one or two am.