By sub01

Tease it out of her?  How, I wondered?  In answer Mary picked something up off the table... the twin vibrators which she had so prophetically had Carol bring down earlier.  "These will get it out of her," she said, holding the thick toys up for Carol to see.

Carol seemed amused by this idea.  "The pegs didn't do it, and neither will those.  So you may as well let me up, Mary.  Then we can talk about your punishment for doing this to me."

But there would be no talk of letting Carol up, and certainly no talk of punishment... save that of her.  The twin vibrators in hand, Mary turned to me and whispered in my ear.  "Why don't you gag her," she suggested sweetly.  "She's so charged, she's going to go absolutely crazy once we turn these on."

I didn't have to be told twice.  I reached for the obscenely shaped penis gag and brought it to Carol's lips.

"Oh no you don't!" Carol protested, pursing her lips and twisting her head away.

"Oh yes I do," I chuckled.  "Unless, of course, you'd like me to do something else instead."  I trailed my fingers over her bare tummy, stroking her softly, teasingly.  "I'll bet that nasty whip you've got upstairs would leave such wicked marks on this lovely skin..."

Carol's eyes widened in panic.  "You wouldn't!"

"Want to find out?"

She apparently didn't, because after a moment's hesitation she reluctantly opened her mouth.  "Fine, damn you."

I pushed the thick penis gag between her lips, delighting when she gagged as I tightened the straps around her head.

"Mmph!"

"I think this agrees with her," I chuckled, winking at Mary.  Indeed I could tell it didn't agree with her, which only made it all the more satisfying.  "Now, about those vibrators..."

Mary was ready, the twin vibrators in hand as well as several dish towels (when had she gotten those?).  I watched curiously as my sister inserted the thick tip of the first vibrator between Carol's tortured cunt lips and gently pushed it home.  It didn't seem to take much effort at all for her to seat it deeply inside Carol's tightness.  I was beginning to think our lovely captive was really, truly enjoying this.

"Now, don't you dare let that slip out of your pretty little cunt," Mary giggled.  Next she positioned the second of the twin vibrators on Carol's tummy, pointed downwards, the thick tip lying just above her hairless mound... close to her clit, but not too close.  I smiled, understanding.  It wasn't nearly close enough.

Without a word Mary tied three of the dishtowels together, forming one long makeshift rope.  I was starting to see what she had in mind, and at her urging I helped lift Carol's hips so Mary could pass the towels beneath her back.  She pulled the towels snug around Carol's slender waist and tied the ends in a knot, trapping the vibrator there on her tummy.  It was an absolute delight to see Carol lying there helplessly with one thick vibrator pushed up inside her cunt and the other lying trapped tantalizingly close to her clit.  There was nothing she would be able to do about it.

With a smile my sister turned the two vibrators on low.  The effect was delightful.  Carol moaned softly around her gag and squirmed a bit... and a moment later her eyelids even fluttered ever so slightly.

"See, she likes it," Mary giggled.  I did see, and Mary was right: this, Carol liked.  "Only problem is," Mary whispered to me, "she won't be able to cum.  Almost, but not quite."

"How long do you think we should leave her here?" I asked.

Mary smiled sweetly as she stroked her lover's naked tummy.  "I don't know... five minutes?"

Carol shook her head, wide eyed with desperation.  "Mmph!"

"Maybe ten?" Mary giggled.

"MMMPH!"

"Ohh!  It looks like she wants fifteen minutes!"

It was obvious that Carol did not want fifteen minutes of the tormenting vibrators.  She was shaking her head now, protesting incoherently around the penis gag.  Her cheeks and chest were flushed, and from the desperate way she was squirming I could tell that the torture of the twin vibrators was already beginning to get to her.

"Yes, definitely fifteen minutes," I chuckled.  "Come on, let's give our slut a little time to herself."  I took Mary's hand and led her for the doorway, smiling back at Carol as we left the kitchen.  After fifteen minutes with those vibrators, she was going to begging for release...

*    *    *

We passed the time in the living room.  I had Mary suck me the entire time.  I sat in the recliner and smiled down at her as she knelt between my legs, her hands on my knees, my cock in her mouth.  She fellated me slowly, expertly.  She seemed in no hurry, but it didn't matter.  I was so aroused that even her gentle sucking quickly had me at the edge.  If I wasn't careful, I was going to cum.  And I didn't want to... at least not yet.  So I coaxed her mouth off my cock and guided her to lick me instead.  She did it with delight... too much delight, perhaps.  She seemed to enjoy tormenting me, licking my swollen shaft, my balls, even the insides of my thighs.  When I needed her mouth on me again desperately, I reached for her head but she stopped me.  She guided my hands back to the arms of the recliner and smiled up at me.

"Keep your hands there, Brian.  Let me do everything."

So I let her do everything.  Which was, for the next fifteen minutes, an exquisite, tormenting tease.  Each time, just when I thought I was about to cum she stopped sucking me and just held me there in her mouth, not moving, just looking up at me and smiling around my stiffness, letting me calm myself before starting in again.  It was sheer, delicious torture.

When finally Mary took her mouth off me, it was with obvious reluctance.  "I supposed we should go check on her," she suggested.

Back in the kitchen, Carol was a delight to behold.  She was obviously desperate, squirming in her bonds atop the table, her cheeks rosy and her chest flushed and her breasts glistening with perspiration.  The vibrators were still humming away softly, slowly, and as I looked close I could see that Carol's thighs were actually trembling.

"She hasn't cum," Mary giggled.  "See?  You can tell by her eyes."

I did see.  Carol's eyes were absolutely, positively desperate.

"Mmmph!"

"I think she's trying to tell us something," I chuckled.  I moved close, leaning down and smiling at her.  "Are you ready to tell us where the key is?"

Carol nodded frantically.  "Mmmph!"

"Still not ready?" I teased.  "Well, we can leave you here a bit longer, if you like."

"MMMPH!"  Carol shook her head, her eyes wide, her lips struggling around the gag.

"Okay, we'll come back in a little while," I chuckled.  "Maybe you'll be ready to talk then."

And with that I took Mary's arm and led her from the kitchen.  Behind us Carol wailed around her gag, and in her struggling I could hear the table legs bumping against the floor.  I smiled.  Ten more minutes ought to do it.

*    *    *

Ten more minutes did do it, and so deliciously.  When we returned to the kitchen, Carol's whole body was trembling and there were actually tears in her eyes.  And still, Mary assured me with a sly smile, she hadn't managed to enjoy even a single orgasm.

This time I went straight to Carol and unbuckled the penis gag.  She looked like she was near tears from the torment, and as I drew the gag from her mouth she gasped for air.

"Please Brian, stop teasing me... I... I can't take any more... oh my GOD, I need to cum!"

I chuckled.  "Then just tell us where the key is."

"It's..."

Mary and I both waited on her answer.  "Yes?"

Carol hesitated.  "Please Brian, let me up first and I'll go get it for you."

I feigned sympathy.  "Sorry Carol, I can't do that.  You should know better."  And I forced the thick penis gag back into her mouth before she could protest.

"Mmmph!"

"Maybe after another fifteen minutes she'll be ready to tell us," I suggested to Mary.  "Or thirty..."

*    *    *

It didn't take thirty minutes, or even fifteen.  After five minutes Carol's desperate struggling and incoherent pleading drew Mary and I back into the kitchen.  Carol had definitely had enough.  And yet I took my time approaching her and admiring her -- even fondling her lovely, defenseless breasts for a moment -- before I unfastened the gag and withdrew it from her mouth.

"It's upstairs in the bathroom!" Carol exclaimed desperately.  "I... I have it taped to the back of the toilet!"

"Are you sure?"

"YES!"

My pulse was racing.  Was this it?  Oh my God, if it was, I was going to absolutely jump Mary the second we got her belt off!  I moved to go check where Carol had said, but Mary stopped me with a hand on my arm.

"Wait, I'll get it Brian."  Mary's smile was gone, replaced by a look of intense anxiousness.  Her cheeks were flushed, and her neck, and even her chest, betraying her arousal.  I knew not to protest, and instead watched her as she hurried from the room and mounted the stairs in twos, her satin nightie swirling about her.

"Brian?"

I turned back to Carol.  She was watching me, wide eyed with desperation.  I smiled.  "Yes, Carol?"

"Please Brian, let me cum.  Please, just push the vibrator a little closer to my clit.  Please?  Oh my God, I'm so close!"

She was indeed close.  I could see it in her eyes, in her squirming, in her tensing.  How delightful.  I reached for the vibrator on her tummy... and turned it off.

"Brian!"

"Sorry Carol," I smiled as I untied the dishtowels around her tummy and removed the vibrator.  "That's a no-no.  You don't get to cum until I say so."

She begged me.  She cursed me.  She struggled and squirmed, making quite a racket, desperate with need.  Her movements forced the thick vibrator from within her cunt, and I quickly thrust it back in deeply.

Mary came back into the kitchen, her cheeks rosy.  To my chagrin I could still see the faint outline of the chastity belt through her nightie. 

"What's going on?" she asked softly.

"She just wants to cum," I smiled.  "But I won't let her."  And then more serious, looking to the faint outline of Mary's chastity belt.  "Was the key not up there?"

In answer Mary smiled and held up a small, shiny gold key.  My heart leapt.  My cock stiffened.

"Would you do it, Brian?" Mary asked softly.  "Would you unlock me, sweetie?  Please?"

Would I!?  I was on my knees at her feet in seconds, smiling up at her, coaxing the hem of her nightie up to her waist.  As I waited on my knees, trembling with excitement, Mary pressed the tiny key into my palm and then leaned down and kissed me, gently on the lips.

There were two tiny locks, one on either side of her belt.  I unlocked them with trembling fingers... trembling so terribly that twice I nearly dropped the key.  With soft, almost inaudible clicks the locks came open and Mary's belt slackened.  Excitement flooded me, and lust.  I looked up and gazed into my sister's eyes, smiling, seeing in hers a reflection of my own desperate passion as I slipped her chastity belt down and off.