Our Natural Selection Ch. 03

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Milk, sodomy... a sweetly incestuous rough fuck.
2.8k words
4.34
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Part 3 of the 6 part series

Updated 10/29/2022
Created 09/15/2008
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I allowed my slave girl to finish showing her greedy devotion in the way she relished most, licking the erection that had just fucked her into the state of delirious and defiled bliss that she constantly craved even more desperately since I'd impregnated her all those months ago. Her talented tongue savoured the mix of our combined sexual secretions and I felt the blood returning to my cock as she increased the enthusiastic oral attentions in the way she knew drove me to renewed passion.... not that it took much to move me to that happy state.

My sister is a stunning red-headed eighteen year old beauty whose blue eyed innocence could tempt the... I'm racking my brains to think of the most unlikely person to use as an example, the fact I can't think of a single person to fit the bill should give you a clue to her attractiveness. The fact that the contents of her brain are as debauched as the contents of her clothing, when she's wearing any, just adds to the joy of Owning her. I sometimes think how lucky she is to have a brother as considerate as myself... what a waste it would have been if she'd been an only child and that appetite for vice in all its more extreme forms had gone unexplored.

A swell of possessiveness flowed over me and I roughly pulled her face from my wet sticky groin and tilted her head up so I could bend low enough to kiss her soft lips, still tasting our salty sweetness on her mouth as we kissed lazily and long--a shared intimacy that the young mother-to-be deserved for being such an abandoned pain whore. Still kissing we slid into a comfortable side-by-side reclining position for a much needed rest after such a frenzied bout of unwholesome fuck action; my sister's slender frame, apart from protruding belly, eased itself against mine so when our mouths finally parted she could rest her tangled mop of fiery red curls on my chest and stare up respectfully at her Master with that look of sated contentment on her angelic face that makes all my exertions worthwhile. I stroked her hair idly like the pet she was and we lay peacefully for a while, recovering our strength and gently exploring each others' bodies with trailing fingers... not lustfully, yet, but just as displays of familiarity.

I had no intention of allowing this break in her training to last long: The opportunities for full on depravity were not so common whilst we both were living under our parents' roof and, besides, in her current delicate condition I knew that my wanton fuck puppet's hormones were keeping her in a near constant state of arousal that was pushing her to nymphomaniac excesses that as her big brother I naturally encouraged. Even in the aftermath of the punishments and pleasures I'd inflicted upon her I knew she was ready to be forced into fresh defilement, not least because her hand had found its way between my legs and was doing that strange fluttering caress she'd mastered upon my testicles, alternating with stroking lightly the length of my heavy shaft in a way that saw it responding in the only way it knew how.

I noticed at this point that my molestation of my little sister had grown firmer in unconscious unity... the available breast standing clear of my body I had in the palm of my hand and was kneading in the way I knew would get results. Sure enough when I pinched the nipple I was rewarded with a thin white stream of milk and a gasp from my deliberately prematurely lactating sub. It would have been a shame not to have taken full advantage of this expression of her perversion after all those laborious hours using the suction pump on those perfect and perky alabaster tits... a painful process that had my slutty sister masturbating ecstatically as I operated it.

I milked her already recharged breast with growing harshness and my pain whore mother-to-be scrambled up to give me access to her other teat which I grasped happy to perform the service. The only noise in the still of my kid sister's bedroom was her groans of appreciation as I pulled upon her swelling cleavage, still covered with crimson streaks from the earlier flogging I'd treated them to. Silently I maneuvered her until she was straddled across my laid flat body... sat astride her Master erect and proud as I reached up and manipulated her fat nipples, sending spurts of warm dairy goodness flying free and down upon my already sticky body and face. The temperature of the evening was rising again as my lithe little slut arched her back under the influence of this lewd abuse of her nursing apparatus, pushing her full curve of her impregnated belly forward and as she squirmed her smooth outspread thighs against my horizontal body I felt further wetness spreading on to my skin from between her legs, a mix of her ever-flowing fuck juices and the seeping of my cum expelled unneeded from her already fertilized womb. This damp reminder of our recent fornication reminded me that the straddling position I'd placed my sister into was one of the approved positions for pregnant intercourse and interesting sensation as it was to have her internal fluids leaking onto my midriff, I could think of a more receptive part of my anatomy... the one returned to full solid erectness and straining to be included in the filthy fun. "Slide down, slave, get that wet cunt sat on my cock," I advised and with both my hands maintaining their maternal massage she edged down my body until her slim hips were spread across my thighs and without ceremony she was able to grind the hot and slippery folds of her labia into the hard contours of my erection, imprisoned between our gyrating bodies. In this delightful position a rhythm was soon established, her riding the ridged length of my soaking cock from tip back down to squash my balls as I emptied her tortured breasts of their nourishing content. The tempo of my sister's pelvic thrusts against my hardness was increasing as I recognized her ragged breathing and glazed look on concentration on her pretty young face as the approach of another orgasm... her breasts must have been sorer than I thought.... and though I knew my recovery time for climax was much longer than hers it seemed to be a waste of a good erection unless I had it lodged deep inside my fuck puppet to help her sexual release. Releasing the tantalizing handhold on her leaking tits I reached round under the fullness of her occupied belly and sunk my fingers into the pliant firmness of her tight buttocks, pulling them apart and pushing her down a bit harder against my lubricated cock. "If you want to cum again then you've got to have me inside that precious little arse of yours," I told her kindly. "It's yours, Sir, to use as you like," she replied quite correctly and since she'd been working herself up into a nice little frenzy she took the initiative, lifting herself up off my prick and leaning forward enough so that it bobbed up free and whilst I held her arse cheeks splayed she brazenly took the straining cock in hand and guided it carefully to that puckered cuteness at her rear that I'd enjoyed so often in the past. I was seeing this obedient compliance from an unusual angle, looking up into the familiar face of my little sister, a look of seriousness mixed with lust spread across her visage as I felt the tip of my prick make contact with her sphincter. Bloated as it was it was also well lubricated with the liquid outpourings of her own loins and she screwed her face up as the cock-head pushed relentlessly against the anal seal. Something had to give and it would be her anus... I felt my sensitive flesh enter her anal ingress slowly until it stretched her cruelly...

I laid back with hands still holding her cheeks apart letting her set her own pace for the sodomy, but once she'd inserted the whole of my glans inside herself her passion and impatience overcame caution and she thrust her back down onto me, impaling herself down to the hilt with a shriek of emotion. Such a slutty dedication to her Master warranted suitable tribute, so I gave her buttocks a quick slap and withdrew my hands... I ran my fingertips to the rigidness of her fat clitoris eliciting a shiver of pleasure that I shared with her through the effect it had on my cock buried unnaturally inside her, then ran my hands across the curve of her oval belly, dripping with expelled breast milk before returning to her much abused tits and resuming their milking. My slave gave a groan of husky approval at my hands' return and threw her lovely head back as a fresh duel arc of cream was forcibly expelled from her sore nipples. "That's more comfortable, isn't it?" I cooed and pushed my hips up to remind her that her ass was full of her Masters invading cock. "Yes, Sir, thank you," she murmured, wincing since I accompanied the thrust with a double pinch to her tormented teats that shot white liquid away over my head. "Good, now prove to me once again that you are my whore... make yourself cum and let me enjoy the feeling of it on my cock lodged so sweetly inside your arse." My insatiable, incestuous slave didn't need any prompting; I'd trained her to let her fingers stray to her own cunt without any shyness and being buggered and milked at the same time in this manner was a vice that my pain whore hadn't experienced to date and she relished giving herself fully to all new perversion. She looked a portrait of debauched perfection as her slim fingers sought out her swollen pink pearl and began frigging it... leaning forward as I supported her body with the grasp I maintained upon her wet tits. I held her in this infinitely incestuous position and luxuriated in the sheer wrongness of making my baby sister anally penetrate herself like this to enhance her masturbation... still, judging by the way she was shifting her weight to make my steel erection delve further into her body, this crude sodomy was having the required effect. I continued to massage her reddened breasts, marveling at the continuing spurts of cream that I could coax out of her as she pushed her chest against my cupping hands and pushed her cute arse against the full cock holding her pinned to my thighs.

My little slave's tits had grown at least a couple of cup sizes since embarking upon artificial acceleration of the lactation process with the same single minded enthusiasm that had been the hallmark of her sexual submission to me and whilst they were not over-sized now they were noticeably larger... cute little tits that my hands covered so perfectly now overflowed as I brutally manipulated them. On sudden impulse I mashed them together in the same way my slut had held them earlier in order for her beloved brother to sink his straining prick between them and fuck the milk-lubricated cleavage to such delicious effect. Pushing her tits together I made sure that the nipples and aureoles made contact and were rubbing together... her teats were swollen and sore looking from all the extra attention they'd received and they looked so irresistible, so hard and erect dribbling white still that I leaned my head up enough to capture them both in my mouth and drew my teeth sharply along their jutting length, eliciting a fresh double burst of mother-to-be's milk into my mouth and a yelp of ecstatic surprise from my slave sister. I maintained my dental grip upon the dual juicy knots and bite and chewed upon the tender paps, the effort of holding my head to them added to most delightfully by the way my unrepentant pain whore was now bouncing her firm buttocks up and down my hips and forcing my appreciative shaft to fuck her tight anal tract, stretching her sphincter to new limits as my cock grew even fuller and harder as it pummeled up and into her at the tempo she was dictating. As I got swept up in the increasing lust I wanted to cum inside her again and fill her arse with cum the same way I'd recently filled her fertile and fertilized womb, but this wasn't some corny story and I knew that my next orgasm would be a little while off yet... still, that was no reason why I couldn't wallow in the electric sensations being transmitted down my impaling cock, or indeed enjoy the effect it was having upon my beautiful sibling who was beyond all restraint by this point and was thrusting herself backwards upon my raw erection with the single minded passion that the triple hard stimulation of her pleasure centers was driving her into.

The enthusiasm of her bucking actions was making her take longer and longer slides along my shaft and I could tell from her sobbing and panting that she was on the verge of climax... the rhythm of her fingers' motion upon her aching clitoris matched the abandonment of her throwing herself upon my erection and her full belly was being pressed against mine without regard for its contents so I released her chewed nipples and pushed her upright so I could take control of her orgasm. My little slut whimpered as her breasts swung free but I quickly caught hold of them again since they were such responsive hand holds and, with her sweat sheened body held at a more responsible angle, I began to thrust my hips upward to meet her bobbing arse cheeks until we had achieved a crazed tempo, her body acting desperately on auto-pilot riding my pistoning shaft oblivious to everything apart from the sensory deluge she was losing herself to. Her split wide cunt was flooding juices down onto my belly and balls most wonderfully and once again the pinching of her fat nipples was spraying warm cream down across my face and hair as her anal passage was ravaged mercilessly by a combination of our exertions....finally her back arched gracefully as she landed especially hard on my invading shaft and she let out a howl of pure mindless pleasure...

I felt her anal ring clamp and clutch the base of my cock as her entire body jerked spasmodically and she ground herself down onto my impaling prick in a way that made it swell even more. feeling her cum this way buried so deep inside her was thrilling and I wished I was ready to shoot my next load so I could add just a further act of depravity to her evening's indulgences... I knew having my hot baby-making spunk exploding inside her arse would appeal to us both, especially if I made her clench her buttocks and hold it internally until I allowed her to let it trickle free like I had in the past. However, exciting as it was to have her sat so solidly on my cock whilst another orgasm filled her entire world, I concentrated in holding her aloft and safe until a slow satisfied smile filled her fresh face and she looked down at her milk splattered brother with that delightful look of adoration and devotion that made my cock lurch as much as my heart. I held her in that compromised and sodomized sitting position a little longer admiring the view looming above me, then I urged her to raise herself slowly so I could enjoy the tight heat of her arse as my cock was withdrawn out of her, and finally it emerged springing up into cool air... fully erect and ready to fuck.

My enslaved slut gave a contented little sigh, basking obviously in the rearing effect her rear had had upon her Master and I guided her down to lay once again by my side so she could recover and we could let our mouths meet in the passionate kissing that was always the perfect aftermath of such intense sexual debauchery. Our tongues fluttered madly against each others' and I felt her melt against me as the total relaxation of post coital bliss flowed over her. I let her rest a while... it would only be a little while I knew, my arousal was growing again and valuable time was passing... my hot little impregnated slave was going to be worked hard this night and in her delicate condition she need to regather her strength. I stroked her hair and taut body and presently I knew she'd drifted off into a light sleep. Carefully, I disengaged myself without waking her and slipped out to take a shower... I was sticky and coated with various drying fluids that my clever possession had exuded— a refreshing shower would sharpen me up and prepare me for the next chapter in my sister's on-going training in unrestricted vice and depraved servitude.

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