By sub01

It was fully three weeks later (a week or two earlier than I expected) when I received Carol's anxious phone call.  She sounded delightfully desperate.

"I've finished, Brian.  Will you please come let me out of my belt now?"

"Hello to you too, Carol."

"Oh, sorry.  Hello."  She'd been so anxious she had launched right in as soon as I picked up the phone.

"And you've finished what?"

I could sense the hesitation, as if Carol was embarrassed to say.  "Giving your sister her orgasms."

"How many did you give her?"

"Sixty.  Well, actually sixty two.  She said I could call you now.  So will you please come and let me out of the belt?"

"Okay, I'll be over next weekend."

"Next weekend!?"  Carol sounded dismayed.  "Can't you come this weekend?  It's only two days away!"

Actually I could come over this weekend, but I wanted to torment Carol just a little longer.  "I'll be over next Saturday at noon.  Okay?"

"Okay," Carol agreed, though she didn't sound happy.

I was about to hang up when my sister's voice came over the line.  "And we have a surprise for you when you get here, Brian."

My interest was immediately piqued.  "What is it?"

But Mary only giggled.  "Oh no you don't, Brian.  Next weekend.  I love you, honey."

I told her I loved her too (I really did), and hung up.  But now I was curious and aroused.  Terribly aroused.  What surprise could they have for me?  I groaned to myself.  Waiting another week to find out would be as much torture for me as for Carol.

*    *    *

I was on their doorstep at just before one o'clock on the following Saturday.  An hour later than I'd told them to expect.  I wasn't late though.  I'd sat in a little coffee shop around the corner reading the paper and enjoying knowing that Carol was waiting and stewing in her own desperation for me to arrive.

When I did arrive Mary answered the door almost immediately.  She was a vision of absolute beauty.  She had her hair made up and wore a provocatively tight black dress that was cut scandalously low in front, and she'd put on her finest earrings and necklace.  And heels.  God, how I loved how she looked in heels!

"Wow, Mary,  you look stunning.  Going out?"

She smiled and took me into her arms right there in the doorway, kissing me deeply.  She felt so soft against me, the sweet gentle fragrance of her perfume so alluring.  "No, just expecting someone."

"Mmm... a hot date?"

"The hottest," she giggled.  "And just between you and me, I think he's going to get lucky..."

"The luckiest."  I kissed her and brought from behind my back a little something I'd brought for her: a bouquet of fresh red roses.  Her favorite.

"Oh Brian, they're lovely!"

"Not half as lovely as you, Mary.  My god!"  I was stiff already, just seeing Mary dressed so provocatively.  I'd never before seen her wear anything so fetching.  She giggled and pirouetted gracefully for me, playing to my admiration.  The dress was nearly backless and I couldn't help but note the absence of a bra strap or panty lines.  She wasn't wearing anything underneath...

"Well Brian, are you just going to stand out there all day, or would you like to come in?"

As I followed Mary into the house I got my second surprise.  Carol was there, kneeling on the floor.  She was a perfect, lustful vision of submissiveness, kneeling there with her hands in her lap and her head bowed ever so slightly.  Her perfect posture thrust forward her luscious breasts, her dark nipples clearly visible through the sheer lace camisole she wore.  Down below she wore nothing but her chastity belt.

"Has she been kneeling there long?"

"Since a half past eleven.  She was anxious."  Mary smiled down at Carol.  "I told you he'd make you wait."

Carol blushed but didn't say anything.

"She's been impatient the entire week, the little slut.  Actually, for a lot longer than a week.  You wouldn't believe what that belt has done for her attitude."

"For the better, I hope."

"Oh, you can't imagine!  She's become so obedient since you locked her in that belt, Brian.  You wouldn't believe it.  I don't know how I'll ever be able to thank you enough.  Oh my god she's been so eager!  She's nearly worn me out with all the attention!"

I smiled.  "Well, I aim to please."

"As did she," Mary giggled.  "I hope you don't mind, but I've been using her quite a bit these last couple weeks."

"Not at all," I smiled.  "In fact, I'd be disappointed if you hadn't."

"And not just for orgasms.  She's become quite adept at housework, believe it or not.  You can't imagine how exquisite it is to watch her scurrying about naked, dusting and straightening."

Actually I could imagine!  And it made me stiffen even more.

"And the massages!  My god, Brian, she's absolutely exquisite with her fingers.  And with her lips..."  Mary smiled as if remembering.  "She's been exquisite, Brian.  And so eager."  Mary fell silent for a moment, and when she spoke again her voice was softer.  "She's been so obedient that I've taken the opportunity to train her a bit.  Would you like to see?"

"Yes!"  Oh my god I wanted to see!

Mary smiled and turned to Carol.  She watched her for a moment and then suddenly barked sharply.  "Carol... heel!"

To my utter surprise Carol immediately crawled the few feet to my sister's side, and once there she knelt obediently with her hands in her lap and her eyes downcast.

"Wow!"

"That's nothing," Mary giggled.  "Watch this.  Carol... kiss my brother's shoes."

I was stunned by Mary's demand... and twice as stunned when Carol actually moved to obey.  She crawled the couple feet to where I stood and leaned forward, pressing her lips to each of my shoes in turn.  And then to my utter shock not only did she kiss my shoes, she began licking them too.

"Now, show him how I've taught you to greet our guests."

Carol hesitated and then straightened up – still kneeling – so her face was level with my waist.  She looked up at me hopefully.

"May I please suck your prick, Brian?"

I couldn't bring myself to say anything, I was so shocked and utterly aroused.  I could only nod.  It was enough.  Carol reached out and unzipped me deftly, opening my pants and drawing my erection out with practiced motions.  As she brought her lips to the tip of my cock I wondered if Mary had made her practice on other men these last few weeks.

As Carol took me into her mouth Mary leaned down and spoke to her firmly.  "Just suck him a little bit, you slut.  Don't you dare make him cum.  Remember, that's for me."

I was beside myself.  I'd hardly gotten past the front door and already I had Carol's luscious mouth on me.  She felt more practiced since last time.  She seemed eager, and yet she tempered herself and sucked me slowly.  She kept her head tilted up and her lovely eyes on me as she worked at me with her lips and tongue and mouth.  And even with her throat as a moment later she took me all the way in, right down to my balls.

"Oh god!" I groaned.  "Jesus, Carol!"

Carol smiled around my cock.  As she kept sucking Mary moved close and stroked Carol's hair lovingly.  "Isn't she good?  I've made her practice on our largest dildo... among other things."

I wanted desperately to ask about the "other things" but I couldn't put words to my thoughts.  Carol's mouth on my cock was so very distracting!  She really was much better than before.  So much better in fact that a moment later she had me so close to orgasm that I had to reach for her hair to pull her off me.  Only she was a step ahead of me, and having sensed my impending crisis she carefully took her mouth off me without having to be told.  With a groan I shuddered, clutching her silky hair and staring down at her in amazement.

Carol gave me only a moment's respite before she moved to take me into her mouth again.  But before she could Mary pulled her back firmly by her hair.

"That's enough for now," Mary said with a smile.  "We can't have him finishing inside your lovely mouth.  Now, what do you say?"

Carol knelt back obediently, licking her lips and smiling up at me.  "Thank you, Brian."

Mary smiled.  "So obedient.  I told her that if she does everything I ask, without hesitation, I just might – might – let you fuck her today."

"And has she done everything?"

"And more!  Haven't you, Carol?"

Carol nodded.  "Yes ma'am.  Everything."

Mary smiled at me.  "And she'll do everything for you too Brian, if you want..."

I felt myself growing even stiffer.  God, I did want.

"...but later.  First, I have something to show you."

I wasn't sure I could take any more surprises!  But Mary insisted quietly, beckoning Carol to her feet and ordering her to turn and bend at the waist.  With surprising flexibility Carol touched her toes, presenting me with her lovely, bare bottom.  Her pale bottom cheeks were crisscrossed with fading marks from the crop and cane.  Obviously Mary had made good use of her in my absence.  But it wasn't the marks on her bottom I was looking at.  It was the slender black base of an anal plug nestled snugly between Carol's bottom cheeks.

"It's our largest one," Mary told me with a wicked smile.  "I've been opening her each night with our strap-on and making her wear the plug each day, so she'll be ready in case you want her that way again.  She complained a bit at first until I told her I'd take her shopping for a bigger plug..."

I imagined Mary fucking Carol with the strap-on and shivered.  Oh, how delightful!  With a gentle touch Mary coaxed Carol to straighten up.  Without a word Carol turned back to us and knelt obediently, wincing almost imperceptibly.  I couldn't help but wonder if the plug was uncomfortable for her.

"And then of course there's the surprise," Mary said softly.

I'd been waiting all week, and wondering, and imagining.  Now my pulse quickened.  "This wasn't it?" I asked, indicating Carol.

"Not even close!" Mary giggled.  "I did something impulsive."  She smiled and glanced at Carol.  "Actually, we did something impulsive..."

"What?"

"You won't be upset?"

"Of course not," I assured her with a smile.  "What is it?"

"You promise?"

"Jesus, Mary!" I exclaimed with a laugh.  "Just tell me!"

In my mind I imagined she wanted to confess something, that perhaps she had let Carol out of her belt and they had fooled around.  But instead Mary smiled and lifted the hem of her dress past her waist, baring a pair of black silk panties and even the tiny silver charm hanging from her pierced belly button.

"What?" I asked, confused.  "Am I supposed to see something?"

"Look closer," Mary suggested with a smile.  I moved closer and examined her carefully.  Sexy, yes – very sexy, in fact – but I didn't see what she might be talking about.

"Mary, I--"

"Closer, Brian," Mary said breathlessly.  She sounded excited, or nervous, or both.  "Look closer..."

It took me another moment before I finally saw what Mary was talking about.  It was subtle, but it inspired in me a sudden and powerful surge of lust.  The inscription had been changed on the tiny charm dangling from her belly button piercing.  It no longer read "CP"... Carol's Pet.  Now it read "BP".

I looked up at Mary in surprise.  "Does that mean...?"

Mary smiled and nodded, a blush rising in her cheeks.  "It... it means Brian's Pet..."

I stared, unable to put words to what I felt.

"Want to see something else?" Mary asked quietly.

"Yes!" I exclaimed.

Mary turned to Carol.  "Lift your top," she said quietly.  "Show my brother."

Carol hesitated and then did what Mary asked.  As she bared her flat midriff I caught my breath.  There dangling from her own oh-so-sexy belly button was a charm identical to my sister's, complete with "BP" inscription.

I looked up at Carol sharply.  "Really?"

Carol nodded without meeting my eyes.  She was blushing now too, even more than Mary.

"Both of us," Mary told me softly.  She came close and stroked my hair gently, smiling.  "We're both yours, Brian.  If you'll have us..."

In answer I took Mary in my arms and kissed her madly, at that moment more in love with her than ever before.  She was trembling, and the moment I put my arms around her she clutched me tight as if she never wanted to let go.

"Take me upstairs and fuck me, would you Brian?  I've been waiting so long."

"Only if I can tie you up," I teased.  "And only if we can make Carol watch."

Mary smiled.  "I wouldn't have it any other way."

I kissed Mary deeply and led her for the stairs.  Carol crawled obediently along behind us.  I didn't even have to tell her to.  She just did it.  I smiled and hugged Mary tighter.  It was going to be another fun weekend.  In fact, I had a feeling it was just the beginning.

The End