(All characters in this story are at least 18 years of age.)
*
I lay in the familiar surroundings of the bedroom of my youth and reflected about how glorious it was to be back home. Not so much that I'd been welcomed back by my mother and step-father without too much nagging and "I told you so" after two years aimlessly getting up to no good since I'd left home but more that it hadn't taken very long upon my return to discover that my baby sister was an insatiable slut just ripe for making my willing and wanton sex slave. In fact the smile playing across my face as I lay contemplating my good fortune was mainly due to said sibling being cocooned under my bed sheets all cozy and contented as she licked, nibbled and kissed her big brother's rigid cock. This was now the proscribed way she was to start her day's devotions to her Master; a human alarm clock sneaking into my room as soon as our parents had left for work and waking me in the most delicious of ways.
Usually I took command of such situations once I was conscious, but this morning I'd already been awake when she'd stole into the bedroom and as she'd knelt naked by the bed waiting for the instructed time to arrive when she was allowed to slide under the sheets and begin her favorite oral task I had let my thoughts drift back to the first day of her surrender to me....now as her sweet lips encircled my swollen glans and teeth grazed my sensitive purple cockhead I lazily let my mind drift back to that momentous day not so long ago when I'd caught the little minx masturbating shamelessly on her 4 poster bed and that state of arousal combined with the spanking I'd felt obliged to give her for being such a shameless flirt trying to seduce her brother in that way had led to her eagerly accepting my proposal to make her my sex slave and train her to be the ideal submissive whore to me that she had yearned for in my absence.
This undertaking was no hardship for me as my sister had blossomed into a beautiful vision of tantalizing perfection; 5' 5" of slender pale temptation, slim hipped with high small pert breasts and an unruly mop of whore red hair framing an angelic face that gave no hint of the depravity that she ached to be schooled in by her new Owner. I remembered that lithe youthful body at the end of her very first lesson in lustful service to me....I'd taught her to suck cock as a start to her training and her talent in this field had led to her making herself cum at the same time as me and as I recovered from her enthusiastic oral attentions I marveled at the sperm covered figure sprawled at my feet, licking her lips to gather even more cum greedily into her mouth. The emotion of the moment had overwhelmed me and I fell to my knees to cradle my sister's limp body and we kissed long and deep, the taste of my own sperm on her tongue just adding to the taboo thrill of the whole twisted situation we were now locked into.
We languished long in that embrace, my hand exploring her cum sheened body and massaging it into her wondrous breasts and hard nipples like the sacred balm it truly was....this increasing kneading of her receptive young tits soon had her tongue darting against mine with more urgency and I knew my sister's hunger for further carnal education was rising up in her again. I confirmed this when I relinquished my hold on her breasts and let my hand slowly travel down her flat belly and over shaved pubic mound until I gently traced the folds of her cute little cunt, irresistible in its moist warmth. Our mouths were still locked in increasingly passionate embrace but as I forcibly violated her lubricated velvet cunt with two fingers she squealed and twisted her head away at the shock of penetration. I took this opportunity to once again gaze down into that familiar face I'd known all my life but was now taking on a new persona...my sister the slut...the degenerate orgasm addict whose greatest desire was to surrender herself to me and become my property to use and abuse how I felt was best to transform her into my sex slave.
So as she stretched out her infinitely fuckable teenage body across my lap I increased the rhythm of my fingers' taboo intrusion of her tight cunt whilst pushing the palm of my hand firmly onto the engorged hard pearl that was her clitoris. My sweet sibling's experiments in self exploration must have been confined to the frigging of her clit because she seemed taken off guard by the sudden intensity of sensations flowing over her and she unconsciously spread her lovely shapely legs wider to accept the finger fucking that her generous big brother was now determined to force upon her....My other hand that had been cradling her head as we kissed now pulled her hair sharply to get her attention and her clear blue eyes tinged with lustful yearning looked up into mine.
"So, little sister, sucking on your own brother's cock wasn't enough, was it? You want me to make you cum with my fingers delving in your hot cunt, don't you?" I asked, once again noting the effect a combination of lewd words and obscene physical manipulation had upon her.
"Please, Sir, I'm your plaything, you can do anything you want with me, I just want to serve my Owner," she said with growing boldness. The lust must be showing my face as well as hers, I thought to myself, she's positively glowing in slutty pride knowing how desirable she is in this aroused abandoned state. She knows I can't keep my hands off her luscious teenage body. I was tempted with this realization to withdraw my hand from its position cupping her cunt, but I'm only human and her approaching orgasm was making her chest heave with passion in a distracting way, so much so that I bent my head down and captured the nearest of her jutting nipples in my mouth, biting it sharply and causing a moan of pained pleasure to escape her lips. I now had her held tight by hair, breast and cunt...this triple grip pushing her to the inevitable conclusion...rough handling was a proven spur to my little pain whore and my fingers plunged deeper and harder into her body, the cunt muscles clutching at me and her cries of ecstasy urging me to take harder grip on the sensitive bud of her agitated nipple until the familiar sounds of her desperate need for climax were at a peak.
I lifted my head from her chewed breast and once again jerked her hair to get her attention and have my abandoned sibling turn to look up at me, her lovely face flushed with filthy emotion and her eyes heavy lidded with smoldering unbridled lust.
"You're insatiable, aren't you slave. Have you no shame, laying there covered in your brothers cum and wriggling your cute little cunt deep against my fingers like a whore?" I teased her.
"I am a whore, Sir, I'm your whore and I want you to use me like that. I want to please you. Teach me everything, please."