Body Shifters: The Hitch-Hiker

"I'm Lacey," said she behind me. "We're Stacey's children!"

"I't's official....I'm insane!" I tried to keep a smile on my face. They both melted back into their previous, dark-haired forms.

"No silly, it's just that we're not human. That's all." Oh well, that explains everything!

"Mom was a little shy about her true nature, but I'm not." Said...erhhh...I think it was Lacey.

"Stacey didn't want to tell you that we're shapeshifters who need fresh, live sperm to grow and survive." Tracey said.

"Mom got enough from you last night, and she split into us!" Lacey cooed.

"It's what we shifters all dream about; finding a nice, horny man who'll give us enough genetic material to assimilate - since we can't produce our own. With a man's sperm, we can grow, and grow until we can complete our lifecycle!"

"S-so Stacey is dead?" I assumed. The girls frowned.

"No, silly! Everything that she was has been copied as part of us! We just get a new default shape from reshuffling of the genes."

"But we know everything she knew, and feel everything she did." Lacey assured me.

"There's no greater pleasure for a shifter than the moment of fission - that ultimate orgasm that completes you forever!" Tracey said. "And with your help - and loads of your sperm, we'll both reach it together! Just like Mom did! I'm so proud!" She beamed. I wasn't much of a scientist, but I remembered from my high school days that there was something else in nature that did this, the pattern they described had a precedent.

Bacteria.

Germs did this... ate and grew and split in two - to start all over again. I bolted for the door. Perhaps the girls were expecting this. Lacey leapt onto my back and Tracey ducked in front of me and went for my crotch.

"No Master! There's nothing to worry about!"

"We need you!" Tracey said, as she wrestled with my pants zipper.

"You weren't afraid of Stacey, there's no reason to worry about us!" Lacey assured me in between wet kisses to my cheek. And then Lacey had my dick out and....and began to lick, and suck and lick....and their clothes melted back into their bodies. Their tight, hard, young teenage bodies. They were slender young hotties with gymnast builds - and their naked, perfect flesh was enough to overcome my fear....and Tracey...she had my cock in her mouth...and Lacey, she kissed me with such feeling, warmth, passion. Maybe I should have kept running - but instead I moaned...slid to the floor - and my clothes were not long for this world. All cares seemed to melt away as two barely-eighteen hardbodies ravished my own body.

**********

I knew exactly what was going to happen, and I knew they'd throw me out of the Chic department store for what I - what they were doing. But I was lucky enough to just happen to be in the same place as the Ex, and as the old saying goes; if ya got it, flaunt it.

For a moment, I forgot about showing-up the ex-wife from the sizzling ecstasy of having Lacey sucking my cock with her usual enthusiasm. We were behind the curtain in the Men's dressing room, but the noises we made were such that anyone who passed by would no doubt conclude some illicit sexual tryst. Tracey was trying on outfits, but she didn't take them off the rack; she just looked at them and her flesh morphed into a simulation of the outfit. She seemed to prefer red cocktail dresses and pink bikinis. And I couldn't help but notice that her figure had changed.

Without exerting conscious effort, her boobs had grown into a nice, handful-apple size on her tight young body, and I could have sworn she was two inches taller. The girls would alternate periodically, and it would be Tracey going down on me, while Lacey's flesh mimicked the store's clothing inventory. Lacey enjoyed those ultra-short silky negligee night gown pull-overs.

"I'm sorry, but we have to ask you to...all of you to leave." Came the predictable demand from a smartly dressed middle-aged woman. I laughed, gave Lacey a pat on the rump and with either girl on my arm strutted slowly, deliberately, out the door. And She was there - the Ex pretending not to notice behind her cheap sunglasses; but I knew that women couldn't help but keep track of such things.

And I would have continued showing off the babes, but this time I was the one who couldn't wait. My cock had been harder, hornier these past few days, and even though I'd already had two spectacular blow-jobs, in just a few hours I was painfully erect. I would stop showing off and take these sweet young things home for a proper screw - all night long.

**********

The girls grew each day, my sperm was like nectar of the gods to them. A week later they no would no longer be mistaken for jail-bait cheerleaders. Their legs...longer, their breasts...blossoming spectacularly. A few good, juicy loads of sperm caused them to mature. As I groped and fondled Lacey's tits in bed, I reflected that both of them reminded me now of those kinds of girls who waste their college years on gossip and random sex until they drop out and become porno-strippers. Their tits...great mounds as long as the length of my hand, and as wide as cereal bowls. Their figures had filled out wonderfully.

"Do we please you, Master?" My response was a muffled gurgled between Lacey's boobs as Tracey rode me to explosive climax. No, they were clearly alien entities - but this was better than any girlfriend a guy like me could ever get. As far as I was concerned they were better than human. Maybe in the long-run, I couldn't trust them, maybe there was some horrible, extraterrestrial agenda that would bring ruin upon the Earth. It didn't matter; I would enjoy this situation as much as possible until the Mother Ship beamed me up for anal probing or whatever.

The next day though, I was in a rush as I jammed my noticeably longer cock into my pants while fumbling for my briefcase.

"Damn! I told Mr. Tightass I'd have those claim forms processed by this morning! I was so busy screwing around with you two that I - "

"It's fine, Master. We filled those out for you while you slept."

"Huh?!?" I opened the case and examined the documents. Everything cross-referenced and notarized perfectly. "You...you did this but...."

"We knew it would please you."

"And we can learn anything. Our minds are as flexible as our bodies." Lacey said. "And you're our Master; we'd do anything to make you happy.

"Anything...." Lacey continued; pressing her naked, porn-star body and spectacular boobs against me. I believed them.

**********

More than a week later, they were no longer asking for permission. They had blossomed into incredible seven-foot tall amazons with washboard stomachs with awesome muscle tone, but there was no way a human woman with their level of apparent athleticism could have such high, perfect breasts large enough to contain gallon milk jugs. Now I was the one lying on the kitchen table, and I was pinned down beneath Tracey as she rode my tremendous cock.

That was how it had been these past few days. The girls still served me, but any hint of my arousal, and their own sexual need took over, and they could not take no for an answer. They seemed to become more animalistic as they neared the culmination of their life-cycles - their hungers and urges more desperate. They were determined to absorb enough sperm to split, and I was more than eager to cooperate.

Lacey began her fission as my cock spewed my creamy load into Tracey's hot, clenching cunt for the second time today. She grew new arms, from her back, new boobs, that seemed to flow and shift from her chest to her back, near her shoulder blades, and a new ass...as her shapeshifting body pulled itself apart, stretching...stretching - growing pale in color as Lacey's face began to distort and the new creature took shape.

They came apart suddenly, two new bodies flowing into new women as two new cunts clenched in orgasm. And then it was Tracey's turn. She suddenly clutched her mammoth tits as they began to multiply. Two throats moaned in ecstasy. Two women's voices howling in delight - and then three voices - and then four voices.

They had coalesced into new bodies - and took a brief moment to shiver in the afterglow of the spawning orgasm. Tracey had proliferated into two sleek young girls with platinum blond hair and green eyes.

"I'm Tiffany!" Said the blond on the left.

"I'm Theresa!" Said the other.

But Lacey's progeny had taken a different turn. One of them had become a bronze-skinned, mahogany-haired beauty with dark eyes and brows, apparently hispanic. But her sister had a deep, dark skin tone and resembled a girl from India or perhaps Pakistan.

"Call me Linda!" said the hispanic hottie.

"I'm Lisa!" said the Indian girl.

Perhaps remembering the way I panicked the first time I was confronted with their reproductive cycle, the new young hardbodies tackled me, plastering me with kisses. Lisa was the first to inhale my nine-inch cock while the others wrapped their arms around me as if to prevent my escape.

"Don't worry, Master." said Tiffany, frantically kissing my neck and cheek.

"We're here to serve you, and pleasure you!" insisted Theresa. The hispanic girl, Linda tried to speak and frantically kiss my chest at the same time.

"MMPH...I promise...MMM...you will....MMM-POP....enjoy me." Linda assured me. The darker girl was swirling my cock with her tongue using the exact same technique that Lacey preferred - it seemed everything was preserved between generations of shape-shifters.

"It will....*SLURP*...feel good....*SLURP*...to give us...*NNNGH* ...your sperm." said Lisa, as she deep-throated me with more enthusiasm than the most jaded whore. I had no doubt I would. And so it was, for the next week I would go to bed every night buried beneath four nubile, nymphomaniacal, teenage beauties begging for my cock. And each morning, they would preen and strut naked before me as I forced my ever-hard dick into clothing to prepare for work - as if to remind me of what I had awaiting me at home - as if they were afraid I'd get freaked out by the bacterial splitting and the shape-shifting and not return.

Maybe I should have run off and found a 'real' woman. But it was something their ancestor Stacey had asked, "Was there any answer that would make me stop wanting to have sex?" This was too good; certainly too good to be true, but also too good to screw up. Nothing short of certain death would persuade me to stop blowing my loads for my gorgeous, servile harem. That, and I was beginning to feel a need to do so. Even under the best of conditions, my prodigious cock strained and tented my pants, bulging noticeably even when not erect, and honestly, I reveled in the stares I got at work. Stares and snickers from female co-workers. Should I have worried that my cock had nearly doubled in size? It gave me a sense of power, potency, and validation that had me singing inside.

Add to that a deep, instinctual craving to inseminate my girls as much as possible, and I almost wanted to say 'To hell with all this', and just walk out. But money, money, money...that was the problem. Still, I felt I didn't belong in an office anymore, I belonged with the girls. They needed my sperm, and there was a deep craving inside me to give it to them.

**********

I was like an animal, rutting and thrusting and groaning as I slammed my rigid meat into the dark-skinned young hottie beneath me. And it was taking less and less time to get hard again - and even after cumming - it felt like I hadn't released my full load when platinum blond Theresa got on all fours to posture her naked ass before me for breeding. Acting on a sudden, sex-crazed whim, I plunged my ten-inches of rigid meat into her rectum. She quivered, but the hole morphed into a slick, lubricated alternative pussy. It didn't seem to matter what hole I thrust myself within - so long as my sperm was inside them, they were rapturously happy. But I didn't sleep with four sleek teenagers for long... their heavy-sperm diet caused them to blossom in days into mature, huge-boobed hotties that any sensible person would assume to be strippers.

When I was too exhausted to pin them to the bed, table, or just the floor for some hard fucking, I passivley reclined on he nearest mattress while they worshiped my cock with tongue, delicate fingers, and the slopes of their own growing tits. And I spurted myself freely on whatever face or pair of breasts was nearby. Not a drop was wasted. More days passed and I plunged myself, literally and figuratively into my new life as alien harem master. Nights were an obscene blur of feminine giggles, ever increasing loads of jiggling titflesh, and ejaculations that seemed to increase in both volume and frequency. My girls kept growing, as did my eagerness. The more sex I had, the more women I would get!

My last coupling did the trick, Amazon-Tiffany was writhing and rippling and I knew she was ready to split, I was so exhausted that I must have passed out during the momentous event. When I awakened, Lisa was deep-throating me in the way that she did best - it was not only lips but throat as well that plastered and massaged my cock - and no gag reflex. The dark-skinned girl seemed to specialize in fellatio. I was barely conscious, but aware that I was ejaculating into her, and that she too - was ready.

But after that my body had to recover, no exceptions. And I slept the sleep of the sexually gratified, truly gratified for the first time....ever.

**********

Light streamed through the windows as I awoke amidst a tangle of soft breasts, sleek thighs, and girlish twittering. Two teenage girls I didn't recognize where nuzzling my neck and chin. I couldn't place their ancestry; they were olive-skinned, dark-haired; maybe Arabic? Turkish? Well, they all seemed to speak English and where acclimated to America so far. And I couldn't be sure who had spawned the pale, curly-haired red-heads burying their faces in my groin. I suspected that the genetic reassortment that occurred when the Shifters split into their progeny was truly random. There was no telling what might be produced! The two at my crotch looked to be fresh fom Ireland, where they Lisa's daughters? It didn't matter, I could practically feel their instinctual devotion to me, their sire-master-husband. The sunlight played sparkling upon their....wait...the sunlight...the sun was...high in the sky...very high...and..was it morning?

Oh no, it was at least noon! And I still had real-world pressures to deal with! Still had the job! and I - that was when the door swung open and I walked into my living room.

Sure enough. It was me, down to my suit and tie and balding, thirty-nine year old face and hairline. In the movies, whenever that happens, it means that some alien/robot/monster is replacing you for evil purposes, and I was caught totally off-guard.

"Don't worry Master;" Theresa said as my face and body flowed and morphed into a seven-foot tall platinum blond supermodel with tits big enough to fit her head inside of. A naked supermodel.

"I..I...I...you..."

"On my - on your lunch-break Master. Oh, you didn't think that your job was too hard for us, did you Master? It's a position unworthy of your genius, and I'm glad to handle it for you. That way, you can stay home as much as you like and enjoy your harem." She smiled. I smiled.

"I bet I know what you'd like for lunch..." I suggested.

**********

Theresa's clenching cunt absorbed a great, spurting load of my cum, enough for her to stretch, ripple, and split into two reddish-brown haired dark-skinned mullatto girls that shivered on the floor with the fiery ecstasy that came at the end (and beginning) of the shape-shifter life-cycle. Luckily, all of Theresa's knowledge, abilities, and memory where replicated in her spawn, and the new teenage hardbodies had no trouble mimicking my shape (and clothes) and flipped a coin to decide who would turn into me, go back to work and finish my shift. The creatures had surprised me before with their learning capacity - and frankly I was eager for any excuse to escape my daily grind. It seems my mind would be busy trying to remember all the names of my girls!

**********

And on it went, more and more sex, and every week at least two new young nymphos with cheerleader physiques and a maniacal craving for my sperm.

"Oh no! While milking the cows, I accidentally injected myself with Dr. Bigem's experimental udder-growth formula!" wailed a sweet young blond girl standing in my living room wearing a pair of suspenders and blue jeans. Her chest jutted forward as her perky B-cups shook and jerked - nipples tenting the fabric as she huffed and puffed, the reaction to the serum causing a burst of erotic sensation.

I clapped twice in appreciation from my cushioned pallet where I lay nude on my chest. One of the second-generaton freckled red-heads spawned from dark-skinned Lisa's lineage was pounding me on the back, preparing my muscles for a deep-tissue massage. Her name was Laura, and although she had been spawned only four days ago, she had mastered the art of the massuesse in a way that would rival a true professional. That had caused some trouble; Laura had been able to arrogantly boast now that she pleased 'The Master' the best out of all the girls of all the lineages. Many of her sisters and cousins wept openly at the idea that they had failed me. As accustomed as I was to their behavior, it was still surreal to see all of these luscious supermodels scrambling to find new ways to pleasure me. To keep peace amongst them, I had to strain myself with a sleepless night of marathon sex to reassure all of my willing alien sex slaves that I did not mean to play favorites.

But that only made it worse; you try driving twenty-three thrashing nymphomaniacs to orgasm all in one night, and most men would be lucky to have only one pulled muscle. But the exertion of pounding so much pussy had strained me such that I really did need a massage from an expert! And Laura was happy to provide. Though less than a week old, the semen I'd spurted into her in gratitude had enabled her to mature from her slim and slender barely-legal body type into the big-boobed, porn-star middle phase of the life-cycle already. At this rate, she'd split by Saturday.

But enough about her - the Breast-Expansion Theatre had been a brilliant idea by the latest generation of teenage hardbodies to drive me to new heights of ecstasy that I honestly didn't deserve. I wasn't sure how they'd discovered my secret fetish, but their shape-shifting abilities allowed them to act out multiple roles credibly, and recreate stories of precocious young women that toyed with magic potions, unlikely machines and other such flimsy plot devices for an excuse to portray mammaries growing, blossoming, enlarging into ponderous mountains of tit to make a chiropractor surrender in defeat.

The current actress was on her knees, fondling her growing tits as she pretended to be a regular gal from Nebraska who'd been injected with a secret bovine fertility formula. Their shape-shifting powers were truly becoming refined; as the actress was not only able to perfectly mimic the texture of denim suspenders, she was also able to convincingly portray vast boobs that grew fast enough and powerful enough to seemingly pop off buttons and tear fabric as bountiful bosoms escaped from her clothes in a jiggling explosion of mammalian enhancement.

Prunes to teacups. Teacups to cereal bowls. Bowls to something like watermelon size - and finally colossal juggs that surpassed watermelons as the suspenders failed, and I counted the seconds until her breasts stopped jiggling.

One one-thousand....

Two one-thousand...

Three one-thousand....

And then, as might be expected for a bovine fertility serum, dark nubs appeared on her tits that puffed out into four nipples on each breast. Streams of white moisture trickled down the girl's chest as she moaned with fear and shock, perfectly capturing the emotions of a young woman thus afflicted.