By sub01

We kept Carol cuffed to the kitchen table all afternoon, even when Mary and I decided to go out for a while.  Mary wanted to do some shopping, and it was such a nice day that I decided to go with her.  Besides, the thought of leaving Carol bound helplessly to the kitchen table while Mary and I were out enjoying ourselves was for some reason incredibly satisfying.

So we went out.  I wasn't much in the mood for shopping myself, and anyway Mary politely and secretively hinted that she really didn't want me accompanying her for whatever reason, so we parted ways with a quick kiss and I went for a stroll.  There was a lake near where Mary and Carol lived, and at this time of afternoon it was absolutely lovely with the low sun casting its rays sharply across the water.    There was a meandering boardwalk along the lakefront.  It was to here that I gravitated, strolling slowly and people watching.  At this time of afternoon, only an hour or so until sunset, there were several couples out walking hand in hand for a late afternoon stroll.  It made me wish Mary hadn't gone shopping, that she would have stayed and walked with me.

I was on my second circuit of the lake when Mary caught up to me.  She was smiling and carrying a little bag, and as she fell in beside me she took my hand in hers and kissed me on the cheek.  We strolled hand in hand, and I felt heady at the thought that for this brief, fleeting moment, we were not sister and brother but two lovers infatuated with each other.

As we came to the far end of the lake I turned Mary and kissed her gently, right there on the boardwalk, not caring that passersby looked on.

"Did you have fun shopping?"

"Mmm hmm."

"Buy anything interesting?"  I reached for the little bag, but Mary playfully batted my hand away.

"Hey!" she giggled.  "No peeking!"  She drew the bag away, shielding it defensively, smiling at me.  "Naughty boy, Brian!"

"What is it?"

"Just something."

She'd piqued my interest.  "Something for me?" I asked with a smile.

"Something for later," Mary teased.  "Now no more trying to peek, or maybe I won't show you at all."

So I stopped trying to peek.  But I didn't stop thinking about it, or wondering.  Not for a moment.

*    *    *

We found a solitary bench and sat.  I put my arm around Mary and held her close, enjoying the feel of the sun on my face and her in my arms.  We sat like that for a long time, not talking, just sitting and enjoying.  We watched passersby, watched ducks on the water and the flags rippling at the far end of the lake and the tall buildings on the other side silhouetted in the late afternoon sun.  We watched lovers stroll by hand in hand, and each time I hugged Mary tighter.  I felt more in love with her now than ever before.

And more in lust with her too.  Soon we just couldn't help ourselves.  A hug led to a peck, and a peck to a kiss, and then we were kissing deeply, making out like a couple of giddy teenagers.  And for a long moment that's what we were.  We were back in our youth and everything was new and fresh, and we so innocent. 

Finally, reluctantly, Mary broke the kiss.  "We really should go back and make sure Carol's okay," she said softly.

"She's okay."  I kissed Mary again, at the same time moving one hand up to cup the side of her breast.  Mary giggled.

"Brian!  Someone will see!"

"Let them."

Mary tried to pull away, but not too hard.  "We really should go back."

"Soon," I agreed.

"Soon?"

"Yes," I smiled.  "Soon."

*    *    *

"Soon" turned into a half an hour, and then an hour, and in the end we stayed there by the lake and watched the sun set.  Mary gave up all pretense of wanting to go back.  She held me, and I her.  She felt so soft in my arms, smelled so sweet, her eyes twinkling so alluringly.  And when she settled her head against my shoulder and sighed, I knew I had fallen for her all over again.

"I like this, Brian."

"Me too."

"We should do it more often."

I hugged Mary tighter.  "Every weekend, if you like."

Mary smiled.  "I would like, Brian.  Very much."

We were quiet for a long moment.  The sun settled fully below the horizon, leaving behind a warm glow that bathed the lakefront in a soft, romantic light.  In this final glow of daylight Mary took on an almost goddess-like radiance.  Her lovely blonde tresses seemed to blaze with beauty, and her blue eyes twinkled in the sunset.  I'd never felt more love for her before, nor more lust.  I leaned close and kissed her again, gently.

"Can I tell you something Brian?"

"Of course."

"It's embarrassing."

I smiled.  "I won't judge you.  At least any more than I already do."

Mary gave me a playfully scornful look.  "Thanks."  And then a softer look, her lips curling in a pleasant smile.  "Back there, earlier, when you referred to Carol's pussy as her cunt?  As your cunt?  That made me sooo excited."

"It did?"

"Yes.  You can't imagine how hot it made me feel, hearing you talk to her like that."

"I'll talk to her more like that, if it gets you horny."

Mary giggled.  "If I get any hornier, we'll have to find a bed."

"Maybe we should go then."

We were still for a moment, gazing at each other, and then Mary leaned forward, kissing me again but deeper this time, more passionately.  "Yes, Brian.  I think we should go..."

*    *    *

Back at home I took Mary's hand and led her straight for the stairs.  The lake and the sunset and Mary's closeness had aroused me terribly, and now the only thing I wanted was to take her upstairs and into bed.  Maybe not even to the bed.  Maybe I would take her right there on the bedroom floor, before we even made it to the bed.  Or maybe even right there on the stairs, before we even made it to the bedroom!  But as we reached the stairs Mary hesitated.

"Oh Brian, what about Carol?"

"What about her?  She'll still be there in the morning."

"We can't just leave her there!"

"Why not?"  The way I was feeling, Carol could very well stay bound to the table all night, and until I left.

"We just can't!  She's already going to be sore enough as it is!  Please Brian?"

I hesitated, but my sister's pleading look softened me.  The truth was, despite how things had changed today, Mary and Carol were still lovers.  And, I could see in my sister's eyes, still deeply in love.

"Okay, but it's going to be on my terms."

Mary nodded.  "Thank you, Brian."  She kissed me gently, on the lips.  I wanted to kiss her deeper, but she pulled away with a teasing smile.  "While you let her up, I'm going to go upstairs and get ready for bed."

"But I'm not tired."

Mary's smile widened.  "I'm not either.  Be up soon?"

I felt myself stiffen at her veiled invitation.  "As soon as I can!"

*    *    *

While Mary hurried along upstairs I went back into the kitchen where Carol still lay cuffed helplessly to the table.  As I came in she craned her neck so she could watch me.  "Are you going to leave me here all night?" she asked, her eyes wide.

"I'm thinking about it."

"Please don't!  Oh, please, I'm so sore!"

I chuckled.  "Mary said you'd be."

"Oh please Brian, don't leave me here.  I... I'll be good.  I swear!  I'll do anything you want.  Just please, won't you let me up?"

"I will, but first I need to do something."  I reached for Mary's chastity belt where it still lay discarded on the floor.  I held it up for Carol to see.  "Remember this?"

Carol nodded.

"Tell me what it is."

A smile tugged at Carol's lips.  "It's... it's your sister's chastity belt."

"Wrong."

Carol frowned.  "But it is."

"No Carol.  It's your chastity belt now."

It took a moment for my words to sink in, but when they did the effect was delightful.  "Brian, you're crazy!  Now let me up!"  Carol struggled anew at her bonds, managing only to make a lot of noise.  "Don't you dare come near me with that, Brian!"

But I did come near her with it, and as she struggled at her bonds I positioned the crotch piece of the chastity belt between her legs and fit the straps around her waist.

"Brian!  I'm warning you!"

That was rich!  Warning me!?  I fastened the straps tight, pulling them snug and then clicking the padlocks into place.  Then I gave the front panel a few sharp tugs, making sure it was secure.

"Brian!  Oh my god!"

"If you don't start acting a little more politely, Carol, I'm not going to let you up."

Carol softened.  "I'm sorry."

"That's better."  I turned away and headed for the doorway.

"Wait!  Aren't you going to let me up?"

I smiled back at Carol.  "Of course.  Just as soon as I hide the key to your belt."

*    *    *

When I'd hid the key -- tucked away deeply in my luggage (I know, not very creative, but then I didn't plan to let Carol have an opportunity to search for it) -- I returned to the kitchen.  Carol was surprisingly meek as I released her and helped her off the table.  She nearly collapsed to the floor after having been bound for so long.  I let her lean on me as she steadied herself.  I took her arm and pulled her close, pulling her nakedness to me, feeling her soft breasts flatten against my chest as I held her and rubbed life back into her shoulders and arms.  Through this all she said nothing, and wouldn't look me in the eye.  When I pulled away she did only one thing: she reached down and pulled in dismay at her chastity belt.

"How long are you going to keep me in this thing?" she asked softly.

I smiled.  "Until you start behaving properly."

"I'll behave," she said meekly.  How unlike the Carol of yesterday she seemed.  I couldn't help but think that being bound and denied was obviously agreeing with her.

I led Carol upstairs to the guest bedroom.  She would be sleeping alone tonight.  She uttered not a single protest as I helped her into bed.  I think she was spent from her ordeal, too tired even to beg me for an orgasm though I could see in her eyes that she still needed one.  As she lay exhausted on the sheets I left her for a moment, returning soon with the cuffs from downstairs and a spool of string that I had scrounged from a cupboard.  It was not my first choice, but it would do.

Carol didn't resist at all as I set about fastening the cuffs to her wrists and ankles.  She only watched me curiously, as if too tired to protest.  "What are you doing, Brian?"  I didn't answer her, only smiled as, having attached the cuffs to her wrists and ankles, I now broke off four long lengths of string.  Just because Carol was sleeping alone tonight didn't mean that she would get to sleep free.  After all, I couldn't have her coming in and disturbing Mary and I during the night.  And so now I tied each of the lengths of string to one of Carol's cuffs, and then coaxed her to stretch her arms and legs out towards the corners of the bed.  I tied the strings off to the corner posts, careful to take up all the slack so Carol was bound tightly if not very securely, spread eagled on the bed.

"That's not going to hold me," Carol said softly.

"I know it's not," I said.  "You are."  I leaned forward over Carol, smiling down at her.  "You're not to break a single string tonight," I told her softly.  "If you're a good little slut and obey, I'll consider letting you out of your belt for a little bit tomorrow, and maybe -- just maybe -- even let you have an orgasm."  Carol seemed to like that thought.  She squirmed gently, carefully testing the strings.  "But if you break any of the strings," I warned, "I'll leave you in the belt longer... one additional day for each string you break."

Carol gasped and lay perfectly still.  "Brian!"

I chuckled.  Carol would be able to get out in an emergency, or if she really, really needed to use the bathroom, but otherwise she was stuck in a position quite unsuited to her having a relaxed night's sleep.  I leaned closer to her.  She lifted her head, offering her lips as if expecting me to kiss her.  Instead I bent and pressed my lips to her breast, suckling gently on her nipple.  Not biting, not teasing, just sucking, and enjoying Carol's little gasp of delight.  And then I tickled her, lightly underneath her armpits.

"Brian!  Oh my god, stop that Brian!  Please!"

I tickled her a moment longer until she seemed in real danger of breaking the strings. 

"I'll expect to find all the strings unbroken come morning," I reminded her, patting her naked tummy.  "Nighty night, you little slut.  Sweet dreams..."

With a wink I rose from the bed.  In the doorway I turned and took one last look at Carol, feeling a surge of lust at the sight of her bound and naked and wide eyed.  Then I turned out the lights.  I left the door open though.  I wanted her to be able to hear Mary and I in the next room.