"Can you bend over a little more?"
"The fuck do you mean, bend over more? My ass is already above my head, how am I supposed to bend over more?"
I sighed, pinching my brow together. Did every porn shoot involve bickering, or was that only when siblings were involved? "Just... reach for your shoes, like you need to fix the strap on your heels."
Kelly sighed, reaching down and dutifully posing with her fingers resting against the clasp on her heels. Thank goodness her wig was pinned in place, or it would have been all over the floor. Instead, the heavily styled hairpiece framed her face as she looked at the camera, joining her cropped blouse in the land of impossible physics. The blouse just barely covered my sister's nipples, and thanks to some cleverly placed adhesive, that wouldn't be changing no matter how much she bent over.
"Perfect, now give me some expressions. Try some frustration, maybe some impatience, like you shouldn't have to waste your time fixing your shoes."
"That'll be easy," Kelly groaned, but she did as she was asked. Something was still missing though, as I looked through the camera's viewfinder at my subject. Inspiration struck, and I walked over to her. "Hey, what are you doing?!" Kelly asked, as my fingers found their way around the overly short skirt she was wearing, and I pushed the fabric up my sister's ass.
"Just, hold that pose a moment longer," was all the instruction I gave. Perhaps it was the confidence in my voice, perhaps it was something else, but my sister's protests quickly died down to silence. I smirked, looking at her panties. Right now, they were covering too much of her cheeks, being rather conservative. Considering Kelly had been fixing them every couple of minutes, I had expected this. But it wouldn't do, not for the scene I had envisioned and needed to create.
In a single smooth motion, I gripped the elastic band of Kelly's panties and pulled upward. Immediately, the triangle of red cotton was swallowed up into her crack, and both cheeks bounced seductively on display. Kelly, of course, immediately began her protests, starting to stand up to both tell me off and to fix her underwear.
"We aren't done with that pose, sis." My voice was cool and controlled, and for a second Kelly seemed to fight an internal battle. I knew I had to tip her over the edge in the direction I wanted, but I wouldn't have much time. I wound my hand back, landing it clearly on her left ass cheek with a resounding crack.
I stepped back, admiring my handiwork. Kelly froze in position, a stunned and aroused look on her face. She was biting her lip, her eyes going a bit unfocused as she processed what just happened. I crouched down and lined up the shot, making sure to capture both my sister's lust filled face as well as the glowing red handprint developing on her ass. I took a few extras, just to be sure, enjoying the evolution of my sister's expressions. Surprise turned to lust, lust turned to desire for more, and desire turned into anger.
She stood, facing me. "How fucking dare you do that!" She cried out, storming toward me. In her heels, she was practically as tall as me, and she made for an intimidating figure approaching. "That really fucking hurt, you know! I... you..." Fire burned in her eyes, and for a moment, I worried I had lost control, that this sweet thing with my sister might be lost to me.
But then, I saw it. As Kelly trailed off, the lust filled her eyes and her hand gently massaged her rear. I took the opening, risking everything in this moment to try and make things right. I stepped forward to meet her, my hand catching Kelly's chin gently and raising her head to look me in the eyes. I pressed my lips to hers and closed my eyes. For a long moment, it was like kissing a doll - completely unresponsive, and not interested in what was happening.
But Kelly warmed up to me, and before long we were kissing like passionate lovers. I wrapped a hand around her bare waist, pulling her tightly to me, while my other hand snaked upward. My fingers gently cupped my sister's throat, and she broke the kiss long enough to moan out and nod her consent. Gently I tightened down my grasp, feeling the anatomy of her throat shifting under my touch. Not wanting to end up in the hospital for a crushed windpipe, I shifted my fingers so that I'd merely restrict bloodflow for a brief moment.
Apparently, my sister had a bit of a kink we were discovering. Between the single spank and the light choking, she was plenty turned on and grinding her hips against mine. I opened my eyes, watching her writhe in place against me with her own eyes closed, savoring the fantasy of the moment. I squeezed again, watching as her eyelids fluttered before she pressed her lips to mine.
Kelly drove me back against the bed, forcing me onto my back. Her fingers ran through my hair, gripping tightly as she rode my lap hungrily. I watched as her chest bounced - still covered by the taped on blouse - and I gazed down lower. The skirt had disappeared at some point, nowhere to be found now. All that remained were the red panties she had been wearing, though at this point they resembled little more than a thong. Drawn up between her ass cheeks already, it seemed as though her pussy had eaten the remaining fabric and she was left heavily exposed.
Using the bunched up fabric - and the bulge clearly evident in my pants - Kelly rode my lap, gyrating her hips back and forth. Her moans filled the air as she built up in pleasure. I reached forward, grabbing her throat again and gently squeezing like before. The effect was instantaneous; without hesitation, Kelly started grinding her hips against mine faster. Her moans were muffled, coming out as horny whimpers until finally her entire body locked up and froze atop mine.
For long moments, Kelly just twitched and spasmed, wordlessly moving her mouth as her eyelids fluttered. She seemed lost, disconnected from the world as she experienced her own crescendos of pleasure. Finally, she weakly pawed at her throat, signaling me to let go. As soon as she was free she slumped over onto my chest, before rolling off me and onto her back.
