Sandy's Birthday Treat - Cover

Sandy's Birthday Treat

by D A Porter

Copyright© 2006 by D A Porter

Erotica Sex Story: Bill gives is wife a special treat for her birthday, her sister.

Caution: This Erotica Sex Story contains strong sexual content, including Ma/Fa   Fa/Fa   Mult   Consensual   Romantic   BiSexual   Heterosexual   Incest   Sister   InLaws   Group Sex   Oral Sex   Anal Sex   .

I had a special treat planned for my wife Sandy on her birthday. She'd been feeling just a little blue lately and I wanted to do something special for my lady. I knew what would cheer her up.
She missed her family ever since we had moved to Tucson from Scottsbluff, Nebraska but lately her homesickness had been stronger than usual.

I had called up her kid sister Robin and invited her to come stay with us for the summer. Robin agreed to keep the impending visit a surprise, and I had sent her a plane ticket. Today was the big day

Sandy was sitting in the living room reading the manuscript for my latest try at writing a novel.
The phone rang. "I'll get it!" I called out.
"OK Hon. " she replied.
I picked up the receiver. "Hello?"
"Hi Bill! I'm at the airport now. As soon as I get my bags, I'll catch a cab right over. "
"Massive cool. She doesn't suspect a thing. "
"Sweet. I'll see you in about an hour. "
"Bye."
I hung up the phone and went back into the living room.

"Who was that?" Sandy wanted to know.
"Just an old buddy calling to let me know he was in town. "
She went back to reading the manuscript. She wasn't making a lot of notes in the margins this time, and seemed absorbed in the story. Maybe I had finally gotten it right this time.

I settled down on the couch and watched Sandy read. My wife is always worth watching. A 25-year-old strawberry blonde with medium small tits and grass green eyes in the face of an angel.
I still don't know why she fell in love with an ugly old dude like me, but I ain't about to question my incredible luck.

I looked at my watch, still a good 3/4 hour to go.
We hadn't seen Robin since she was about 12, and that was 6 years ago. I would have taken Sandy up to see her family long ago, but she loathed her step dad, and she never had gotten along with her mother. Robin was the only one out of the family that she truly cared about. She had been devastated when we had to leave her kid sister behind.
I found myself wondering what Robin looked like now. Last time we had seen her, she was all scrawny limbs and a mop of unruly bright red hair.

The time seemed to crawl until I finally heard a car pull up in the driveway. Sandy was still engrossed in the story, and didn't even look up. I went to the door and opened it quietly. I don't know what I was expecting, but it sure wasn't this vision of beauty that was now walking up the steps.
Long red hair, creamy white complexion and a magnificent set of tits that were obviously unfettered by a bra to judge from the way they bounced and swayed as she moved. A flat waist and long shapely legs displayed by a super tight pair of denim cutoff shorts.

"Robin?" I asked, stunned.
"The one and only. " she said with a happy grin.
"Thank you God. "
"What was that?" She asked.
Oh shit, I hadn't meant to say that aloud.
"Never mind. Come on in. " I took her bags and ushered her inside.
She stopped in the doorway to give me a quick hug and a kiss. "Thank you!" she whispered in my ear.

I put her suitcases down in the hall and followed her into the living room. She stood there waiting for her sister to look up.
"Who was that?" Sandy asked distractedly.
"Its just me. " said Robin. Sandy's head snapped around and her eyes went wide. "ROBIN!" she whooped and flung herself out of her chair to wrap her arms around her kid sister in a hug so tight it must have made the younger girl's ribs creak. "How did you get here? How long are you going to stay? WHY DIDN'T YOU LET ME KNOW YOU WERE COMING?" Sandy was babbling out questions so fast that Robin didn't have a chance to answer.

"Happy birthday my love. " I said.

Sandy didn't hear me; she was too busy trying to cram 6 years of catching up into about 6 minutes of talking. I shook my head and left the room.
I carried Robin's bags up to the guest room across the hallway from our bedroom. It had it's own bath and a nice view of Mount Lemmon. Robin should find it comfortable enough.
When I got back downstairs, the girls were still chattering away like a couple of magpies. I decided to let them have some time together alone and left to pick up robin's little surprise.

When I got home, Sandy was in the living room with the manuscript again. "Hi sweetie. " I said. "I hope you like your birthday surprise. "
Sandy stood up and laid the manuscript on the coffee table. "Have I told you today that I love you?" she asked as she snuggled into my arms.
"I think so, but tell me again. " I quipped. Instead she fastened her mouth to mine with a fierce hunger that I hadn't seen in quite a while.
"You'll get your reward tonight in bed. " she promised me as she pushed her groin against mine.
I rubbed my hands up and down her back in the way she liked to be caressed. "I'm glad I could make you happy again. " I said.
She laid her cheek against my shoulder and sighed. "I'm always happiest with you around. " she murmured.
"Where is our houseguest?" I asked.
"She's up taking a shower. " Sandy replied. "I told her that we'd take her out to dinner tonight. "
"I already have reservations. " I told her.

She squeezed me again and then turned back to the chair and the manuscript.
"How do you like it so far?" I wanted to know.
"I keep getting caught up in the story line and forget to look for errors. " she admitted.
I felt just a little smug. Fort once, Murphy's Law seemed to be leaving me alone for a while.
"Robin will like this too. " Sandy said suddenly. "I'll have her read it tonight while we're, ummm, busy. "
I grinned. "Sounds great my love. "

If it sounds like I am still infatuated with my wife, you're right. I am. And proud of it.
I sat on the couch again and propped my legs up on the coffee table. I opened my laptop and started another story line.

I looked up when Robin came into the living room. She was fresh from her shower and wore only a knee length terry robe and a towel around her hair.
"Sandy," she said. "I can't find the blow dryer. "
"Check the bathroom in our bedroom and look in the cabinet under the sink. " Sandy told her.
"Hey Robin, " I said before she could leave the room. "I have a little something for you too. Consider it an early Christmas present. " I took a key ring from my pocket and tossed it to her. "That's the house key and the keys to your car. "
"I don't have a car... " she trailed off.

Sandy was smiling at me and I winked at her. "Really? Then whose car is that sitting out in the driveway?" I asked Robin.
She went to the front door and looked. "No way!" She shrieked. Then she came tearing back into the living room to practically tackle me with a hug. "Thank you!" she said over and over again as she peppered my face with kisses.
Sandy's curiosity got the better of her and she went to the front door to have a look for herself.

"Where the hell did you find that?" she asked.
The "that" in question was a 1962 Lincoln Town Car convertible.

"Remember Dale?" I asked. She nodded.
"Dale just finished restoring it. I traded him that old 'Vette that I have been wasting so much time on. "

Robin had climbed off me by then and was headed for the door, intent on a closer examination of her new toy.
"Um, sis," said Sandy, "You might want to retie your robe or put some clothes on before you go out there. "
Robin looked down and realized that her robe was completely open, giving me a fine view. She wrapped her robe shut and retied the belt, and then she sped upstairs to get dressed.

"Every time I think you can't surprise me anymore," Sandy said as she eased onto my lap," you come along and show me something new. "
About then Robin zoomed out the door wearing another set of daisy dukes and a tank top. Sandy leaned against me and laughed. "She'll be useless for an hour or two. "

We heard the car start up and pull out of the driveway. I slipped my hand up under Sandy's shirt and tweaked her nipple. "How about a quickie while your sister's otherwise occupied?"

My wife dragged me to my feet and into the kitchen. "The hell with the bedroom. " she declared. Then she sank to her knees and unzipped my pants. Taking my cock out of my shorts, she took it deep into her mouth and started nursing on it like a baby with a pacifier. As my cock quickly grew to full erection, she started bobbing her head back and forth, pumping her hands along the shaft with a twisting, spiral motion, occasionally taking nearly all of my 7 1/2 inches deep into her throat. I caressed her hair as she worked. Then she pulled her head back and stood up suddenly. She undid her shorts and pushed them to the floor along with her panties. She turned and bent over the table. "Now. " she said urgently. "Please. "

I held her hip with my left hand and used my right to rub my cock up and down her pussy slit before nudging the head to her hole. I now gripped her with both hands and pressed forward as she pushed back. Even after a yearlong courtship and 6 years of marriage, Sandy was still nearly virgin tight as I set up a rhythm that pushed deeper into her with each stroke. Sandy was lunging back to meet every thrust, her head hanging down and her pussy already starting to spasm. My cock normally points straight up along my belly when fully erect. When I entered Sandy from a standing position, my cock rubbed into her at a unique angle. I don't know what I am hitting inside her, but it drives her wild, and standing rear entry is her favorite position. I buried my cock deep in her and held it there as I leaned forward to caress and tease her breasts, then down her sides and belly to her pussy slit, splayed open by my cock, her clit was easy to access. I rubbed it gently, then traced circles around it with my fingertips. Sandy gasped when my fingers found her pleasure button, and her pussy clamped down hard on my erection. When I felt her pussy relaxing and contracting with her climax, I resumed thrusting hard and fast. Sandy was trying to say something, but it was too jumbled for me to make out what she was saying. I felt my own come boiling up from my balls and thrust into her as deeply as I could, letting my semen spurt out to splash against her cervix. I held still in her for a long moment, then she started moving her hips again to indicate that she wanted to continue. I was more than willing. I positioned her legs a little further apart, lowering her stance and changing the angle at which my erection entered her. I looked down at her ass and spread her cheeks with my thumbs to get a better view.

Sandy moaned and pushed back again. I brought one hand to my mouth and slicked up my thumb with spit. I applied gentle pressure to her puckered rosebud of an asshole. When she pushed back again, her sphincter relaxed and my thumb popped through and into her ass.

"Yesss. " Sandy hissed as I wriggled my thumb a little deeper. After thrusting into her for a while, I moistened my other thumb and it joined the first up in her ass. When I felt her climax yet again, I withdrew from her pussy and slid my cock up her ass with a smooth even push. Sandy lunged back hard, and I felt her anal rim sliding down my shaft to clamp snugly around the base of my cock.

Sandy had always been a big fan of anal sex, and was game for a little butt banging whenever I brought it up.

As always, I started out with slow, short strokes, giving her a chance to get used to my cock in her ass. Then gradually, watching her for any sign of pain or discomfort, I picked up the pace and length of my thrusts until eventually I was stroking full length in and out with a loping rhythm. Her ass was even tighter than her pussy, and it felt unbelievably good as I slid my cock into her to the roots, then pulled out until only the tip of the head was still inside her, then back again. Sandy had a hand down under herself, rubbing her pussy hard and fast. When she came, her sphincter clamped down like a vise, during an in stroke, and I came abruptly with little warning. I leaned forward, still deeply embedded in her bowels to kiss her back and shoulders. "You're the best. " I told her. "And I love you now more than the day we met. "
Sandy squeezed my cock with her anal ring, "And I love you too. " she said, almost purring.

I straightened up and started the gradual withdrawal from her ass. She liked it when I took my time withdrawing from her, with occasional forays back deeper inside her. Gradually I eased out until only the head was still inside her ass. She pushed back a little to take me about halfway back inside, and then let her breath out in a long sigh. "OK, now. " she said. I pulled my cock slowly from her ass all the way.

I heard a slight noise and turned my head to see Robin standing there in the kitchen doorway with a glazed look in her eyes and her hand down the front of her shorts. I winked at her, and then turned back to my wife. I pulled out a chair and sat down, guiding her into my lap where she put her arms around me and buried her face in the juncture of my neck and my shoulder. I knew from long experience that she would be like this for another few minutes at least as she recovered from her series of orgasms.
Robin finally noticed me grinning at her and did a nuclear blush. She yanked her hand out of her shorts and spun away down the hall. I wasn't fooled for an instant; Robin had been wearing the same look Sandy gets when she has just finished a major climax.

I turned my attention to cuddling with my wife, feeling perfectly content to stay right where I was for the next several eternities if that was what Sandy desired. But Sandy stirred and raised her face to mine for a leisurely kiss. When we came up for air, I started nibbling her neck and shoulders. Sandy pressed against me for a moment, then moaned, "We don't have time for this. We have to get ready to take Robin out to supper. " I kissed the hollow at the base of her throat, one of her prime turn on spots, then set her on her feet. "As you wish milady. "
She knelt and kissed the tip of my cock before tucking it into my pants again. "You'd better grab a shower before we go. I'll use the one in Robin's room. " She her finished pulling up her shorts and went upstairs.
I followed at a slower pace. When I got to the bedroom, Sandy was undressing for her shower.

"I thought that you were going to use Robin's bath," I said.
"She's busy in her room I guess," Sandy shrugged. "The door is locked and she's not answering. "
"Hmm, she must have come home when we were busy. " I said casually.
Sandy's eyes went wide. "You don't think she saw anything do you?"
It was my turn to shrug. "You can ask her if you want when she comes out of her room. "
(Hey, I wasn't about to rat her sister out directly. )
Sandy stepped into the shower where I joined her moments later.
"No monkey business this time. " she said sternly. "Or we're going to be late. "
"Who me?" I feigned innocence. "Would I ever do something like that?"
She laughed deep in her throat. "Turn around, you big goof. " And she proceeded to wash my back for me. When she was done, I took the soap and washed her back, and then her front. I even shampooed her hair for her.
Sandy loves to be pampered, and I love spoiling her rotten.

When we got out of the shower and dressed, we heard Robin moving around in her room. I knocked on the door. "Hey Honey, are you ready to go out to dinner?"
"Just about. " She answered. "About another 10 minutes. "
"You can drive us there in your new car. " I said through the door.
"OK!" came the excited response. I went on downstairs in search of my wife.

I found Sandy down in the kitchen setting things out for a late night snack if anyone would still be hungry after supper. I folded her into my arms from behind and hugged her. "Every time I see you, I thank any Gods that are listening that you love me. "
She turned her cheek to me for a kiss. "Is Robin coming down soon?"
"About 10 minutes or so is what she said. "
"Good. " Sandy said. "I can't believe that you did this for me. "
"You're worth it. " I said.
She wrinkled her nose at me and went back to her preparations.

I retrieved my manuscript from the coffee table and slipped it into its proper folder. No sense in taking chances with this one.

Robin came down the stairs so fast it was little more than a controlled fall. "Are you two ready?"
She was absolutely stunning in an apple green dress that set off her hair perfectly.
"Whenever you are, slowpoke. " I teased.

Sandy came out of the kitchen slinging her tiny purse over her shoulder. Her skintight black dress was designed to make men drool when she walked by, and Sandy had the body to pull it off. "Let's get going. " she ordered.
Robin led the way to her car. She practically strutted as she walked. I couldn't blame her, if I was a woman with her kind of looks, I'd be strutting too.

 
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