{ADAM}
My first glimpse of my sister's pussy made my already hard cock jerk. For a moment, I feared I was going to explode, that my dick would go off and spill the pent up pleasures. But it didn't.
I pulled the panties off Stephanie's feet and threw them into a corner. I leaned against one of her legs, holding it in place against the bed, while I grasped the other and tied a stocking around its ankle. I extended the stocking to a lower corner of the bed and looped it securely around the frame. I wrenched her other leg toward the opposite corner of the bed and tied it in the same manner.
Now, she was spread wide, open to my lustful gaze.
The realization that she was naked, utterly exposed to her brother's eyes, plus the sight of my monster cock must have given rise to an erotic excitement my sister couldn't control. Her pussy slowly dripped wet and I couldn't help but grin as I watched it get ready for my cock.
I leaned lower and placed my thumb on the puffy outer layer of her pussy lips which were already soaked by her cum. As I spread the tender lips open, all her juicy inner pinkness became exposed. I saw the cute clit sticking up, then the deepening recess of her cunt hole, rosy and inviting. My cock ached to sink into her snatch.
But there were other things to do with her first. And other things to see.
I moved around beside her and worked a hand underneath her back so I could work on the zipper on her dress. She only stared up at me, not moving, wordlessly.
"Pancake, you're really wet," I hissed.
She tried to speak against the gag but it was useless. All that came out was a moan.
Her gaze kept returning to my hard-on which showed no signs of softening. It was even now swelling and gleaming with moisture.
I bent and snaked my tongue around one of her hardened nipples. I could feel the sizzling excitement ripple through her. Her pussy began to get even wetter and swollen, stretching, getting ready to welcome my sweet rod.
I gathered her tits in my hands, shoving them together. Then my restless tongue poked out, gliding all over her breasts, my teeth clamping down on one of the nipples, then the other, drawing them for long pleasurable moments.
She let out a sensual moan. I beat back a chuckle. I knew she loved it.
And damn, what that moan did to me. My cock bounced in anticipation, growing bigger, precum gathering at the tip.
She writhed against the mattress, pulling against the bonds. It was terribly humiliating to be tied down and spread wide open before the very eyes of your hungry brother, but I could tell with the glimmer in her eyes that she derived some twisted pleasure from it. Her cunt throbbed and her pussy continued to stay wet in anticipation.
I kissed downward along her belly, licking at her smooth quivering tummy as she wriggled. Then my hand passed over the tuft of hair on her cunt mound and dipped in between her open thighs, stroking up and down her soft, wet gash.
My inquisitive finger soon found its way which led deep into her body, the part which he had only fantasized exploring. Soon, that finger was sliding in and out, fucking her hot hole.
My excitement had now reached a pitch that I wanted more and without wasting any more time. I could tell that she was also yearning for my cock, desperate for me to insert the thick flesh inside her. Her body throbbed violently and she moved her hips forward, bobbing against my incestuous finge strokes, making my finger slide in even deeper.
My sister's eyes widened as she watched me scramble between her thighs. My skin burned where my turgid cock slapped against her as I settled myself.
With a short, animalistic growl, I pushed my cock down and nosed its tip into the entrance of my step sister's pussy.
She moaned against the gag and strained against the restraints again, but it was still no use. I plunged my throbbing cock into her until she absorbed my entire length. I held my shaft deep inside of her cunt for a while, and she looked up at me.
What was that in her eyes? I couldn't put a finger on it, but one thing was sure.
She wanted this. I was young, handsome, blonde–the epitome of all she ever wanted in a man. The only problem here was the familial bond between us. She wished I wasn't the instrument sent to her from hell to satisfy her sinful pleasure. But I was young and handsome, and the effect was the same as if even Jace was the one above her right now, balls deep inside of her.
She slowly jammed her eyes shut. But when I began to stroke my big, strong cock within her, pulling it back and forth, she could barely keep her hips from moving in sync.
Alright. Now is the time for action.
I began slowly at first, then I picked up pace, moving faster, grunting with every thrust. Soon, my balls were slapping rhythmically against her ass.
"Jace... Jace...." she moaned into the gag, but this wasn't Jace and she knew it. She needed it to support the fantasy, to reduce the guilt.