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Ying Yang {Riv Yavtry} (mf, cons, inc)
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It was the ultimate nightmare. Plucked from home during the school
holidays for a cheap fortnight's holiday at a seaside caravan site in
the middle of nowhere. I know things had been tight since my dad
left, but I'd much rather have been at home playing football with my
friends, frequently  punctuated by surreptitious wanking to the
accompaniment of my porn stash like any normal fifteen-year-old.

What's worse is that I couldn't shake off my baby sister, Rachel.
The three things that would immediately have struck you if you met
Rachel were first the excess of fluorescent pink; second the constant
giggling; and third the mouth full of metal. And there was no escape
for me because every time I tried to make a getaway, mum would say
"Why don't you take Rachel with you?"

The caravan site had a few organised amusements but the prospect of
two whole weeks of karaoke, swimming and miniature golf with a
giggling thirteen-year-old was more than I could stomach.

I had seen some caves further along the beach above the high-water
mark and I wanted to explore them, preferably without Rachel in tow.
After breakfast I went to my room (Rachel shared a double bed with
mum in the other bedroom), put on some sturdy boots in case the caves
were wet, checked my torch worked, then snuck out of the window. I
knew I'd be in trouble later but it was worth it for a few Rachel-
free hours.

There were about half a dozen caves, none of them very deep.
Graffiti had been spray-painted in a couple of them but otherwise
they were unremarkable. I had just about finished exploring the last
cave and was wondering how to spend the remaining time before lunch
when I noticed something glinting, buried in the sandy floor.

A quick bit of digging in the dry sand and I had unearthed a green
glass bottle encrusted with salt. The bottle was stoppered with a
cork which, try as I might, I couldn't remove. I wanted to see
inside, without breaking the glass if possible, so I rubbed the glass
to try to clear away the salt crusts.

POOF!

It was a bit like a smoke-bomb going off; the cave was suddenly
filled with pungent grey smoke. As it cleared I saw a pair of tiny
dragons flying round, one red and one gold, approximately 6 inches
from wing-tip to wing-tip and the same from snout to tail-tip. The
dragons didn't appear to have any malicious intent because they flew
up to me, hovering about a foot from my face.

"Typical," I muttered, "a normal person would have got a genie but I
get a couple of overgrown bugs."

"Oi," replied red dragon, "I'll have you know we're both fully-paid
up members of the Federation of Licensed Genies."

Me: "You can talk!"

GD: "What's so special about talking, Nick?"

Me: "You know my name?"

RD: "Well dur… we are genies! It's our job to know stuff."

Me: "Since you know my name, what are yours?"

GD: "I'm Ying."

RD: "And I'm Yang, or perhaps it's the other way round."

GD: "We're pretty much one genie, different facets of the same
personality."

Me: "Well Ying and Yang, I'm sorry we got off on the wrong foot. Now
how does this work, do I get three wishes?"

RD: "Crikey mate, you're way out of touch. Three wishes were
abolished nearly five thousand years ago."

GD: "Productivity, you see. Humans took so long to decide what they
wanted, the Federation passed a ruling restricting them to one wish."

Me: "I have to ask this, but will my wish be subject to any gotchas
if I don't word it carefully enough?"

RD: "Now there's the thing you see. You don't actually get to make
the wish. We work out what you most want and then give it too you."

GD: "New policy, the memo reached us only this week."

RD: "When humans make wishes they usually have some megalomaniac
intent which is illegal under Federation rules, so we have to
interpret them in a way that doesn't blight the whole future of the
planet."

GD: "One guy asked for world peace."

RD: "So we put him in a persistent vegetative state."

Me: "That's what I meant by a gotcha."

GD: "His world was perfectly peaceful. No wars, no rat-race, no
worrying about the future, he stayed peacefully in a hospital bed
being fed through a tube until he died a peaceful death."

RD: "Another guy asked for immortality."

GD: "So we turned him into a type of seaweed living in the
sulphurous hot water near an underwater volcano."

RD: "Not quite immortality, but he should live for a thousand years
or so."

GD: "And there's the guy who wanted to become irresistible to women."

RD: "So we turned him into chocolate."

Me: "But that's horrible. How do I stop something horrible happening
to me too?"

GD: "We know what you really want."

Me: "But even I don't know what I really want so how can…"

POOF!

More pungent grey smoke. As it cleared I saw that bottle and dragons
had disappeared. In their place was my baby sister Rachel.

Stark naked!

I couldn't help but stare at her nude body, seeing her in a
completely different light to normal. She had a gorgeous, curvaceous
body with a very nice pair of tits, not huge but firm and perky, and
a light tuft of hair above her pussy. When had my baby sister become
this grown up.

"The real Rachel is at the caravan site, isn't she?"

<<Yes,>> came a voice in my head, sounding like one of the two
dragons.

The girl giggled. Definitely a Rachel giggle; she even had identical
braces on her teeth.

I followed her gaze and saw what she was giggling at - the huge tent
in the front of my shorts.

"Please Nicky, let me suck your cock."

I always hated Rachel for calling me Nicky, it sounded girly, and
this facsimile had the identical habit. She even sounded like Rachel.

I thought for a moment. It would be rather nice to get my cock
sucked for the first time, and it's not as if the girl was really my
sister.

Taking my hesitation as assent, the girl came and knelt in front of
me. She unbuckled my shorts and pulled them down to my knees, then
she hooked the waistband of my boxers over my straining erection and
pulled them down too.

She giggled again. Damn, why did she have to sound so like Rachel!

The girl took my cock in her warm hand, causing it to jerk and
throb, and gently peeled back the foreskin, revealing a drop of
precum oozing from the tip. She giggled again then reached out with
her tongue to wipe up the drop, giving the most agonisingly faintest
of touches. I gasped with pleasure.

"Yum, that tastes nice," said the girl, then she sucked the head of
my cock into her mouth.

The sensation of heat and wetness was amazing. My cock had been hard
before, but now it felt like a baseball bat sticking out in front of
me.

The girl started bobbing her head backwards and forwards, stroking
my cock with her lips, while teasing the tip and the underside of my
cock with her tongue. Although I was pretty close to cumming, she
tormented me slowly to make it last.

I reached down with my hands and cupped the girl's breasts; they
felt warm and firm yet pliable. I sought out her hard, rubbery
nipples and started simultaneously rolling both of them between
fingers and thumbs. The girl moaned, the vibrations adding to the
arousal of my cock.

I noticed the girl had lowered a hand to her pussy and was rubbing
it vigorously. I wondered what the girl tasted like down there. I'd
always wanted to try it and I saw my opportunity.

With a superhuman effort of will I pulled my cock out of the girl's
mouth, causing her to look at me questioningly. I removed my shorts
and boxers completely then pushed her gently back to lie on the sand.
I knelt over her head and presented my cock to her lips, and she
willingly sucked me back into her mouth.

I leaned over the girl until my head was level with her pussy, then
gently eased her thighs apart. I breathed in her intoxicating, musky
odour.

As the girl continued to suck and lick my cock, I lowered my head to
her pussy and kissed it. Then I parted her lips and thrust my tongue
inside. She was hot and wet, and tasted rather nice, salty and tangy.
I licked the insides of her lips, lapping up her juices, causing her
to moan enjoyably round my cock.

The girl added her hands to the fray, using one to gently squeeze my
balls and the other to rub my shaft near the base. I felt my climax
dragging inexorably closer.

I sought out the girl's erect clit, poking out from under its hood,
and flicked it with my tongue, enjoying the flood of juices she
released in response.

At last I felt my groin tighten, then my cock jetted spurt after
spurt of cum into the girl's mouth, far more powerfully than I had
ever cum with the help of porn. Sucking and swallowing eagerly, the
girl didn't spill a drop. 

As my cock stopped throbbing and started to lose its hardness I
thrust a finger deep into the girl's cunt and sucked her clit into my
mouth, nipping it playfully with my teeth. Suddenly she too was
spasming, her cunt clutching round my finger, her hips thrusting back
up at my mouth. I continued sucking and nipping to prolong her orgasm
until finally she pushed me away.

"No more," she begged, "I need a rest."  

I collapsed onto the sand at her side. We rested for a few minutes,
then she lazily reached out a hand to my flaccid cock and started
gently stroking it, trying to bring it back to life.

I wondered what she tasted like so I leaned over and kissed her on
the lips, enjoying her sweet taste. The girl responded, opening her
mouth to let my tongue enter.  I slid my tongue between her teeth,
avoiding the metal braces, until it encountered her tongue. I teased
the tip of her tongue, then tried to suck it into my mouth, savouring
the incredible sweetness.

My cock was rapidly getting hard again as the girl continued to
stroke it, and I reached out with my hands to fondle her warm, pert
breasts. She moaned through the kiss. Eventually we had to come up
for air.

"I want to feel you inside me," said the girl.

That brought my cock back to rock hard in an instant.

I parted her legs and moved between them, placing the head of my
cock at the entrance to her cunt. For the first time in my life I was
about to fuck a girl for real!

I slowly pushed forward and found she was wet and ready for me, my
cock sliding easily between her rubbery lips.

"Oh yes, that feels so good," she gasped.

I pushed in all the way, until I bottomed out.

"Fuck me hard," she begged.

I needed no further invitation, and started pistoning vigorously as
though I had been doing it all my life. Her cunt muscles seemed to
grasp my cock as though trying to suck out my cum, and I knew I
wasn't going to last long even though I had only cum a short time
ago. Even so the girl orgasmed first, the spasming of her cunt round
my cock dragging me over the edge, causing me to shoot jet after jet
of sperm deep inside her.

Exhausted and panting, I collapsed onto the sand. Then I noticed the
time on my watch.

"Oh shit," I exclaimed, "I'll be late for  lunch."

I threw on my clothes and set off for the caravan. I didn't know
what to say to the girl but she wasn't the real Rachel so it didn't
matter. Then I noticed she was following me. Still stark naked.

"You said the real Rachel was back at the caravan. Why is this girl
following me?" I asked, hoping the dragons would hear.

<<We never said this Rachel wasn't real.>>

"But how can that be? There's only one Rachel!"

<<Ying and Yang. Different facets of the same personality. Don't
worry, it will all sort itself out.>>

Suddenly racked with guilt, I waited for Rachel 2 to catch up with
me, then held out my hand. Hand-in-hand we walked back to the
caravan, my mind in a turmoil about having fucked my own sister.
Strangely nobody seemed to notice that Rachel 2 was completely naked.

Back at the caravan mum and Rachel 1 were waiting for me.

"There you are, we were getting worried about you. Lunch is ready,"
said mum.

That was a surprise, I'd been expecting a roasting for going off
without Rachel. Fluorescent pink t-shirt wearing Rachel 1 gave me a
weird quizzical look.

The next surprise was the table - four places had been set. Mum, and
I sat on one side, Rachel 1 and the still naked Rachel 2 sat on the
other. As we tucked into lunch, the outlines of Rachel 1 and Rachel 2
seemed to blur and start to merge, as did their lunches. Eventually
the two Rachels became a single, fully-clad Rachel.

After lunch, when mum took the dirty dishes to the caravan
kitchenette to wash them, I seized on a moment alone with Rachel. 

"Where were you this morning?" I whispered urgently.

"I was here with mum all morning, and yet I remember all the fun
things we did together in the cave. Let's go back this afternoon and
do some more."

Suddenly my cock was rock hard again and causing a huge tent in my
shorts. Rachel saw it and giggled, and I hurriedly adjusted my shorts
to make the bulge less obvious in case mum saw. The holiday was
turning out to be not so horrible after all.