Part 2: The Gift
This is a follow up from a previously submitted story. It is recommended (but not necessary) to read that story first in order to understand the actual relationships between the people involved. I hope you enjoy this one.
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Chapter One
I had been surfing for a while on the Internet looking for a gift for my sister Kelly. I was running out of time to set the whole thing up since her birthday was closing in. I knew exactly what I was looking for but it wasn't something easy to find. In addition to that, I wasn't able to concentrate given the fact that my other sister, Tracy, was below the desk giving me one of her delightful blowjobs. She knew how to drive a man crazy using her mouth and she always liked to take her time, patiently and skillfully. She could take a whole dick in her mouth and keep it there for long moments as she massages to base of the shaft with her tongue. I could feel her warmth all along my cock and just as I though I found what I was looking for on the net, I couldn't hold any longer and blasted my sperm down her throat.
Tracy's obsession for sperm became evident in the previous weeks, so when she felt the hot cream pouring in, she almost had an orgasm herself. She squealed mutedly as my dick filled her mouth and my balls contracted over and over. I must have squirted five or six big loads of fluid before I was finally done. She pulled back slowly and after a long intake of air, she looked up at me with a playful expression and asked,
"Did you find it yet?"
"I think so... look at this," I answered.
She moved from below the desk, sitting on my leg, and looked at the screen.
Then I started reading: "We are recruiting today! Are you a hot woman? Are you up for a gangbang? Call us now and get paid thousands of dollars in one day..."
"Wait," Tracy interrupted me, "does this mean that we don't have to pay for it?"
"No silly" I said "this mean that they are going to pay us".
"Wow! This is the best birthday present I'd ever given to someone," Tracy said laughing.
"You are so cheap!" I responded.
"Well... since we have already found Kelly's gift, can we move over to the bed now?" Tracy said with a grin on her face.
I kissed her roughly and squeezed one of her breasts. She moaned, sticking her tongue in my mouth.
I stood up lifting her with me, walked over to the bed and threw her flat on her back. Tracy was wearing a short skirt that rolled up to her belly. I reached out, reaped her panties off and dove between her legs.
"Ohh god!! Yess Mark!! Eat me!!" she screamed.
Her pussy was already dripping wet and I easily slipped two fingers in her love tunnel while I nibbled on her sensitive clit with my lips and teeth. Tracy was squirming over the bed, waving her hips up and down while she pressed my head hard against her crotch with both hands. It took only a few minutes before my sister's whole body started to spasm uncontrollably as she reached a strong climax. My head was trapped between her shaking legs while her orgasm faded slowly until she was just lying still on the bed with a look of satisfaction on her face.
By then, I was hard as a rock again and I had no intentions of stopping the sex session. I turned her over, face down, and climbed on top of her. I aimed my dick to her anus and pushed slowly. Tracy gasped as she felt the head of my dick past her tight sphincter. I pushed a little further and she lifted her head from the bed with a loud sigh. I pulled back and then pushed in again, inching deeper every time until my balls were resting on her rounded asscheeks. I started to pump her, finding less resistance with every stroke as her anus adjusted to the girth of my cock. Her panting increased and soon after, she was thrusting back at my shaft. I moved my arms underneath her chest and rested my upper body on top of hers. This way I was able to stroke her ass faster, smashing down with my full weight.
"Ohh... ye...sss!! Fuck... meee!!" Tracy yelled.
I impaled her anus wildly; crushing her body against the bed and making her clit rub on the rugged bed covers, which made her scream even harder with ecstasy. Suddenly, almost without a warning, I empty my balls inside of her bowels. Hot cum spurted in her ravished cavity, filling it rapidly. This must have taken my sister over the edge too because, just as I finished, she clenched my dick with her rectal muscles and exploded in her second orgasm of the night. She was gulping for air, shaking with me on top of her. I love to make my sister cum; some girls have almost imperceptible orgasms but not Tracy, she trembles so hard that is especially evident when she reaches her peak. Then, it was all over, at least for the night.
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Since my last 'fake birthday' party, when my work friends banged my sisters, Kelly had been insisting to organize another party. I was reluctant to do so because it was too soon and we had to be careful about anyone finding out about us. I wouldn't be good that my relatives or neighbors discover that I was setting up gangbangs with my own sisters. After thinking about it for a while, I decided to do the 'party' away from home, where no one knew us and where we could be free to do whatever we wanted. Thinking a little further; if I was going to set up a gangbang with strangers, why not use the help of experts. The adult film industry.
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I got off the bed and walked to the desk to write down the phone number of the advertisement displayed on the computer screen. Looking over my shoulder, I watched my sister lying naked, resting on the bed. She looked so beautiful. I was so damned lucky.
I went back to join her and catch some sleep.
Chapter two
Since the day I took the first photo session with Kelly until today, my little sister had discovered a whole new world of pleasure. When I am not home, my sisters spend a lot of time together sharing everything, from a simple bubble bath to an extensive use of sexual toys that they had bought in the past few weeks. Sometimes, when I arrive home, Tracy is so spent from their lesbian sessions that she doesn't want to know anything about sex for the rest of the night. But Kelly... she is another story. Kelly is always ready for more and she has so much energy that never ceases to amuse me.
My sisters and I have had the occasional sex with other people but nothing out of the ordinary. I had been screwing a voluptuous secretary at work and my sisters change boyfriends every week in college, but our best sex is with each other. I think that is the reason we get along so well; much better than other families. Every time a fight is in order, we jumped on top of each other and fucked our brains out, and by the time we are finish, we can't even remember what we were fighting about.
For obvious reasons, we don't have guests at home very often, but lately Kelly had been inviting one of her best friends to the house. Her name is Sabrina and I had the suspicion that she knew something about my sisters and I because every time I looked at her, she always looked down and when I tried to talk to her, she got really nervous and was not even able to keep eye contact with me. I had to talk to Kelly about this.
"What's up with Sabrina?" I asked Kelly.
"Why?" she said.
"Well. I perceive that she gets really nervous when she is in the house. Have you told her something about us?" I asked her.
