----------------------------------------
Modelling Selena {RivYavtry} (Mg kinky?)
----------------------------------------


Almost as soon as I pulled out of the caravan site car park, I
realised I had left behind the letter I had intended to post. I did a
u-turn, drove back to the site then walked back to my caravan. Damn,
nearly half an hour wasted. To my surprise the door was unlocked. I
was sure I had locked it. I opened the door and went in and there she
was, rummaging through my possessions.

"I don't fucking believe it," she exclaimed, "nothing worth nicking
in this shithole and now I get caught."

She stared at me defiantly. She looked about twelve, with a very
slender, boyish figure. She was wearing the uniform of the local
girls' school, only the skirt had been hitched up high revealing her
slender thighs and the white crotch of her panties, and she'd tied
off the front of her blouse to reveal a large amount of very trim
midriff. She had a dirty blonde bob showing brown at the roots.

"Go on, mister," she challenged me, "call the pigs. They can't touch
me you know. They'll get my mum out of work, if lying on your back in
a massage parlour is work, she'll give me earache and take me back to
school and I'll be out again by lunch."

Her green eyes flared at me. In a gamine sort of way she was quite
cute.

"What's wrong with school?" I asked.

"Like anyone gives a shit about the likes of me! My mum's got a
degree and look where she's ended up. I'd rather be out and about
getting some money so I can buy nice things."

"If it's all about money and your school won't miss you, would you
like to do some modelling for me today?"

"You want to fuck me don't you! That's ok, only I've never been all
the way before so I'm not very experienced. And don't get me knocked
up because you sure as hell don't look like you can afford
maintenance."

"What would you say to one hundred pounds?"

The girl's eyes lit up.

"Wow, you can do whatever you want for that, fuck me every which way
in the book."

Then she furrowed her brow and narrowed her eyes.

"First, where's the money? You don't look as though you have that
much."

I opened up my wallet and showed her the wad inside. I peeled off a
fifty pound note and held it out to the girl.

"Half now, half later, because you don't trust me and I don't trust
you. Fair?"

"I suppose so."

She took the note and stuffed it in her bra. What had previously
been flat now bulged slightly.

"We're going for a little ride. My studio is an old cottage about
five miles into the country. You go first," I indicated the door,
"and I'll lock up after us."

This time I remembered to pick up the letter and I double-checked
the caravan was locked. I was a bit self-conscious about being seen
with a schoolgirl, especially one showing as much flesh as she was,
but we didn't pass anyone between the caravan and my car. 

"Is this yours, mister? I thought you were poor."

She was evidently impressed with the BMW.

"No, it's been hired for me. When I finish my commission here it
goes back again."

"You really are an artist?" she said with surprise, "I thought you
were just a pervert who likes to fuck little girls." 

It was a slow crawl through the traffic jams in the town centre, so
I introduced myself.

"I'm Douglas, Doug for short. I'm not famous yet but there are
people out there who think I will be so they give me commissions.
What's your name?"

"Selena Judd."

"Selena, that's a nice name. How old are you?"

"I'll be thirteen next autumn."

"What do you want to be when you leave school."

"Rich. God, why the questions? You sound like my fucking granny."

"Sorry, just trying to pass the time while we're stuck here."

One more red traffic light and we hit open road. Dual carriageway
for about three miles, then a turning down a country lane, another
side turning onto a single-track road with passing places, then
another turning down a dirt track.

"You sure you know where you're going, mister?" 

"Nearly there."

As if on cue, we turned a corner and there it was, a tiny stone
cottage in the middle of nowhere, surrounded by fields of grazing
sheep.

"What's that pong?"

"They fertilised the fields last week. We'll have to keep the
windows shut."

"Have you got electricity? It's the middle of nowhere?"

"Yes, and running water too."

We got out of the car and went into the cottage. I turned on the
lights, drew the blinds, turned up the thermostat on the heating to
80F then showed Selena round. The ground floor served as my studio,
completely open plan. Upstairs were various facilities, kitchenette,
toilet, bathroom, shower. I handed Selena a large, fluffy towel from
a pile in the airing cupboard. For my line of work I always kept a
large number of freshly laundered towels ready.

"Shower. I want you clean everywhere. And I mean everywhere."

"Ok mister, it's your money."

I went into the kitchenette while Selena was taking her shower. I
opened up one of my  buckets. It was over half full, that would be
plenty, but the contents were a bit dry so I added water and stirred
it until it reached the right consistency. I resealed the bucket then
put it in the oven, setting the temperature to 100F. I filled the
kettle and switched it on.

"Do you want coffee?" I called out.

"Yes," she shouted back, struggling to make herself heard above the
sound of the water.

"How do you like it?"

"Strong, half milk, three sugars."

Selena emerged from the shower wearing only the towel.

"Do you want me to put my clothes on again, or have you something
for me to wear or do you want me naked?"

"Like that's fine. Here's your coffee."

I watched her closely while she sipped the coffee. She had scrubbed
up quite nicely. We finished our coffees about the same time.

"Right, time to get to work. I'm going to have to restrain you so
that you don't move while you're modelling. Do you need to have a pee
or anything?"

"No, I'm fine."

I grabbed another towel from the airing cupboard, then escorted
Selena downstairs into the studio. There was a small, rather high,
sturdy, table up against a wall. I dragged it into what I judged was
the right position, near the centre of the room. I laid the towel on
it.

"Up you get."

"What, up there?" Selena replied, indicating that the height of the
table made it difficult for her to climb up. I took Selena in my arms
and lifted her up. The towel she was wearing fell to the floor. She
made a frantic snatch for it.

"Leave it, you don't need it."

Selena's slender frame didn't weigh much and I was easily able to
deposit her on the table. She tried to scoot back to sit on the
middle of the table.

"No, lie on your back with your bum right on the edge."

She did as she was told. I fetched several sets of restraints, like
handcuffs but well padded to minimise chafing for the person being
restrained. There were two hoists attached to the ceiling on a rail.
I pulled one over and cuffed one of Selena's slender ankles to it,
then I repeated the process with the other hoist and ankle. I
manipulated the hoists so that Selena's legs were pulled vertically
into the air. Selena's tummy curved inwards.

"Are you comfortable," I asked.

"It's ok," Selena replied.

Then I pulled the hoists apart along the railing so that Selena's
legs were pulled wide open.

"Kinky," said Selena, "Enjoying the view?"

Actually I was. She had a really nice pussy. No hair, smooth puffy
lips and nothing hanging down or sticking out.

"Yes, you have a really nice pussy."

"I bet you say that to all the kids you bring here to fuck."

For a twelve year old she had a lot of attitude. I rather liked her
spirit.

"Now the wrists. Raise your arms above your head."

Selena obliged, and I cuffed her tiny wrists to the table legs so
that she was splayed out and prone.

"You're going to a lot of trouble to fuck me. What's the matter, do
you think I'm going to put up a fight or something?"

I went upstairs to the kitchenette and returned with the bucket that
had been warming and something that looked like a cake icer set.

"Do you want to watch, or would you prefer a blindfold?"

"I'll watch," Selena replied.

"Is your hymen intact?"

This question seemed to fluster Selena. Perhaps she wasn't as
streetwise as she pretended.

"Yes. No. I don't know."

I had a bottle of lubricant in the studio, which I used to ensure
coarser plaster didn't stick to my moulds. I rubbed some into my
hands. I parted Selena's outer labia with my fingers. When I took my
hands away, they closed up again. I took a length of string and
slipped it under Selena's buttocks and over her thighs. I took a
couple of clothespegs and tied one to each end of the string.

"I'm afraid this might hurt a little," I warned Selena.

I clipped a clothespeg to each of Selena's fleshy outer labia.

"Ouch, watch what you're doing, you pervert."

"Sorry, but I have to do this."

I tightened the string and Selena's labia were pulled wide apart,
exposing her inner labia and clitoral hood.

"Ouch!" Selena again protested.

I lubricated my hands again and slipped a couple of fingers inside
Selena's cunt. There was no hymen, for which I issued a silent prayer
of relief, but she was very small and tight inside. I needed to
stretch her. I pushed my fingers in as far as they would go, barely
three inches. I rotated my fingers inside her, all the time trying to
push deeper and wider. On the front wall of her cunt I felt a
slightly raised rough area, and Selena gasped when I rubbed it. I had
found her G-spot. I continued massaging Selena's G-spot, and at the
same time I lowered my head to her vulva and started flicking her
clitoral hood with my tongue. Selena panted deeply in time with my
ministrations, she became very wet and the nub of her clitoris popped
out. I speeded up the massaging of Selena's G-spot and closed my lips
over her clit, sucking it into my mouth. Selena's panting became
shallow and desperate and a pink blush spread over her skin.

"I think I'm going to pee or something," she gasped, then emitted a
high-pitched squeal as her orgasm broke, the muscles in her concave
tummy rippling as they clenched round my fingers.

Selena came down from her high.

"What the fuck was that? I've never felt anything like it!"

"That was an orgasm. Hopefully you'll have many more in your
lifetime."

The orgasm had achieved what I hoped, and Selena's cunt could now
take the length of my fingers. I took them out and washed my hands.

"And now you're ready for some modelling."

I filled my 'cake icer' with white paste from the bucket and chose a
nozzle.

"This is similar to plaster of paris but it's my own especially fine
formulation.that doesn't stick to skin."

I held the nozzle to Selena's inner labia and squeezed. Even though
the plaster was body temperature, Selena gasped.

"I'm going to make a cast of your cunt," I continued, "this stuff
should be dry to the touch in about twenty minutes and solid in
thirty but it will have to remain in place for two hours before it
can be safely removed. I'm afraid you're in for a boring day."

"You're not going to fuck me?" Selena asked, incredulously.

"Do you want me to?" I threw the question back at her.

She didn't answer.

I continued squeezing the plaster into Selena's cunt. At one point
it made a farting sound as the air introduced during the finger-
fucking made its escape. The 'cake icer' became empty, so I refilled
it.

"Um, I'm feeling rather full," said Selena.

"I need to squeeze in as much plaster as I can to force all the air
out. Otherwise I won't get all the inner detail."

I started squeezing the new load of plaster into Selena's cunt.

"It's starting to hurt," said Selena.

I continued squeezing. Selena's tummy was now starting to bulge
outwards. Selena's eyes looked tearful. I stopped squeezing and
started playing with Selena's clit with my fingers. Despite the pain,
the stretched nerve endings meant that Selena's clit was already
erect and I soon had her panting again. I didn't let her cum, but
squeezed more plaster into Selena's cunt, which stretched more
readily while she was aroused. By alternately stretching and playing,
I managed to insert almost the whole second batch of plaster until it
seemed I could force no more into her. Selena was sobbing now, from
the pain and from the frustration of not being allowed to cum. I
lowered my lips to her clit again and sucked it back into my mouth,
flicking it with my tongue. Selena screamed as the violent orgasm
pulsed through her. I wondered it the ripples of Selena's bulging
tummy would make an impression on the plaster.

"Fuck, are you trying to kill me," gritted Selena when she was able
to talk again.

 "You've done very well. Now we just need to leave it two hours."

I went back upstairs to the kitchenette and made a couple of
coffees. I had to support the back of Selena's head with my hand
while holding the mug to her lips so that she could drink hers.

I looked at my watch.

"Half an hour gone," I announced, "should be safe by now."        

I lubricated my hands again, then pushed my finger against her anal
sphincter. She had done a good job of cleaning up, and the sphincter
was pink. The finger forced its way in up to the knuckle.

"Pervert. Are you queer or something?"

Selena had obviously recovered from the pain of having her cunt
stretched. She felt sticky and full inside, and when I pulled my
finger out it was covered with acrid brown shit.

"When did you last go?" I asked her.

"How the fuck should I know? I've got more important things to worry
about."

"I did say 'clean everywhere'."

I searched around for something I could use to give Selena an enema.
I could use my precious 'cake icer', but that would meaning cleaning
it a couple of times and that was always a time-consuming job. I
didn't have any empty squeezable bottles I could utilise. A sudden
aching in my bladder gave me an idea. The studio had a couple of
extractor fans and I turned them on full blast. I found an empty
bucket and some kitchen roll and put them close to the table. I
unzipped my jeans and took out my cock. It was semi-erect. I rubbed
it hard until it was fully erect, then I coated it with lubricant.
Selena watched with wide eyes.

"I knew it. You're queer. You're going to fuck my arse, aren't you!"

Selena was definitely feeling better.

I held the head of my cock up to Selena's anal sphincter. The
unusual height of the table meant that I didn't have to bend down. I
pushed hard with my cock.

"Push out, as though having a shit."

Although Selena tried to oblige, it seemed that her subconscious
knew she was full and wouldn't let her relax her muscles. Instead I
pushed a thumb against her sphincter, and managed to force it
through. Then I did the same with my other thumb. Hooking the thumbs
on either side, I pulled her reluctant sphincter wide open and thrust
my cock at it. This time the head managed to squeeze through and I
slid out my thumbs leaving my cock head securely wedged inside
Selena's anus. I wiped my thumbs clean as best I could using the
kitchen roll, but I could still smell the shit on them. I relaxed my
bladder muscles and felt pee squirt down my urethra to the point
where it was clenched by Selena's sphincter. I squeezed hard with my
bladder muscles and was rewarded by a squirt of pee forcing its way
past the sphincter and into Selena's rectum.

"What the fuck? Are you peeing in me?"

"Yes," I admitted, "it's the only way I could think of to clean you
out."

I forced squirt after squirt of pee into Selena's rectum. It was
hard work, and with the temperature turned up I was soon sweating. I
took off my t-shirt leaving me naked to the waist.

"I'm going to shit," warned Selena.

"Try it," I replied, "push out as hard as you can."

Selena pushed out, and as her sphincter relaxed for a moment I was
able to squirt a steady stream of pee past her sphincter and into her
rectum. Selena's sphincter clamped down hard again. Her tummy was now
bulging obscenely.

"I can't hold it," sobbed Selena.

She lost control of her muscles as her rectum cramped, and I
injected another stream of pee into her. Selena was getting very
distressed, trying to wriggle her torso as she desperately tried to
shit. I forced one more squirt of pee past her sphincter then
although I wasn't quite empty, the lack of pressure from my bladder
meant I couldn't force any more through.

"Clamp down as hard as you can," I instructed.

Selena tried to hold back, but with her internal muscles cramping
she had little control. I reached for the empty bucket and held it
just under the table. I pulled my cock out of Selena's rectum and
manoeuvred the bucket in place in one swift movement. Fortunately
when the stream of shit and pee burst out of Selena's rectum, the
bucket was in place. A disgusting smell filled the studio, but the
extractor fans were powerful and soon got it under control.

"Push out as much as you can," I urged.

Selena now had control of her muscles back, and two powerful thrusts
excreted more shit and pee, but further thrusts were dry. I used the
bucket to empty the last of my pee from my bladder, then I set about
cleaning up. The contents of the bucket went down the toilet, and I
washed my cock and hands clean. With moistened kitchen roll I wiped
Selena clean then dried her on the discarded towel.

"I ache inside," she complained. 

"It will soon pass. That's an hour and three quarters. I'll be able
to take the cast out soon. In the meantime I'll get us some lunch. Do
you like pizza?"

"Ooh yes," replied Selena, and she reeled off a list of her
favourite toppings.

"There's a takeaway just down the road. I won't be long."  

 I left the cottage with the extractor fans still going full blast
and with Selena still tied and prone on the table. It was probably
safe for her to walk around by now, but I didn't trust her especially
since I wouldn't be there to keep an eye on her. The pizza takeaway
was empty, hardly a surprise since it was in a village in the middle
of nowhere, but they served good freshly-cooked pizza that was worth
waiting for. I drank a can of cola and posted my letter while the
pizza was being cooked. By the time I got back to the cottage, three
quarters of an hour had passed.

"Quick, I need to pee," shouted Selena as I went through the door.

She was red-faced at the exertion of trying to hold it in, her
stomach muscles were clenching and she was struggling against the
restraints . I considered releasing her and letting her use the
toilet, but guessed there wouldn't be time.

"I can't hold it any more," she screamed.

Just in time I put the bucket in place as a stream of yellow liquid
arched out of her pee-hole.

"That was close. But the floor's tiled so the pool would have been
easy to mop up. You should have just gone," I told her.

"Now you tell me," she sniffled.

A few last drops of pee emerged from Selena's pee-hole and trickled
down her perineum. I mopped then up with kitchen roll. I gently
parted Selena's inner labia and prodded the white mass. It was rock
hard. Grasping the edges with my finger-nails, I pulled. The cast
came out surprisingly easy. I had expected it to be smooth but there
were faint ridges all along its length. I released the clothespegs
from Selena's outer labia, leaving angry red marks where they had
pinched her. The labia reluctantly started to close. Then I
unfastened Selena's wrists and ankles, catching her legs as they
fell. They felt cold, so I massaged her silky smooth skin to get the
blood circulating again.

"Can you walk?" I asked her.

"I think so," Selena replied.

"Up to the bathroom and clean up, and I'll divide up the pizza."

Uncertainly at first, Selena half-staggered to the stairs then
climbed up, using the handrail to support herself. I heard running
water, then the toilet flushing. When Selena emerged and came back
downstairs, she seemed fully recovered. She hadn't bothered to put
any clothes on or even wrap herself in another towel. Above her
prominent ribs, I noticed her enlarged areolae and tiny breast
swellings for the first time. Selena saw what I was watching.

"What, never seen a pair of tits before?" she sneered.

"Small but perfect," I replied.

Selena blushed at the compliment and looked away.

I had cleared the table where Selena had been restrained, and found
a couple of clean plates for us to use. Other than the knife to
divide the pizza, I couldn't find any cutlery so we had to eat using
our fingers. The pizza was excellent, the takeaway had been able to
provide Selena's favourite toppings and she managed to polish off
half, not bad going for someone with such a slender frame.

"I know you're a kinky pervert but I could get used to this," she
said approvingly.

"I have choc ices upstairs. Would you like one?" I asked.

"Yes please."

"Plain or milk?"

"Plain."

While upstairs I prepared two more coffees and brought then down
with the choc ices. While we ate and drank, I examined the cast of
Selena's cunt. It was five and a half inches long, almost long enough
to take my cock. I had already noticed the ribbing on the sides, but
this time I noticed near the top a small ring-shaped lump with a tiny
bobble on top. I pointed it out to Selena.

"That's your cervix. When you have a baby, it has to expand wide
enough to let the baby through."

Selena's eyes grew wide at the thought of a baby passing through
something so small.

I pointed out a rough indentation on the side.

"And that's your G-spot. That's what gave you so much pleasure when
I rubbed it."

"Wow! We do sex ed in school, but it's all drawings. We never get to
see what anything really looks like." 

"Had you seen a cock before?"

"Yes. I've seen Carl's. Carl lives next door and is a year younger
than me. We've fooled around a bit but we've never done it. His cock
is tiny compared to yours."

"Give him a few years and he'll catch up. Mine is pretty average in
size."

"Anyway, what are you going to do with my cunt?"

"Exhibit it. Let the world see your inner beauty."

"Fuck. You're not going to say it's mine are you? My mum would kill
me."

"No. She'd kill me too!"

Choc ices were devoured and coffees drunk.

"What now?" asked Selena, "I'm yours for a few more hours yet."

"First I'll clear away the empties".

I cleared the table and put the towel back on.

"Stand up against the table and bend over it."

Selena stood up against the table but it was just too high for her
to bend over. I grasped her by the hips and boosted her up, so that
her torso was lying on the table with her legs dangling over the end.
By stretching her toes out, Selena could just touch the ground. Using
restraints, I cuffed Selena's wrists to the legs at the far and of
the table. Then I pulled her legs wide apart, exposing the pink
puckered portal between her buttocks, and cuffed her ankles to the
table legs at the near end of the table. Her feet were about three
inches off the ground. I brought some more towels down and placed a
pile under each foot so that the weight of her legs was supported by
the towels and not the cuffs.  

I fetched the empty bucket, kitchen roll and lubricant again. Selena
could turn her head round a fraction so that she could catch glimpses
of what I was doing unless I was directly behind her. Selena
recognised the supplies.

"Are you going to pee in my arse again?" asked Selena.

"Yes, I need to clean you out some more."

I unzipped my jeans and took out my cock again. Some gentle rubbing
and it was soon fully erect, then I coated it liberally with
lubricant. I stood behind Selena and aimed the head of my cock at her
anal sphincter.

"Push out please."

Selena pushed out and I pushed in and this time the head of my cock
slid in without too much difficulty. Perhaps the morning penetration
and subsequent emptying had helped. My bladder was quite full and I
released a spurt of pee into Selena's rectum.

"Mmm," said Selena, "that feels quite nice."

There was no attempt at resistance by Selena and I maintained a
steady flow of pee into her rectum. I could feel the warm, wet
pressure increase against the head of my cock. Eventually my stream
petered out, although by using my bladder muscles I was able to force
one or two more squirts into her.

"I'm feeling very full again," Selena warned me.

I was now dry, and I couldn't wait in this position while my body
generated some more pee for me. I wanted to stretch Selena's rectum,
but I couldn't use the same method I had used with her cunt because
the involuntary sphincter between rectum and lower intestine is
easily forced open and I didn't want plaster in Selena's lower
intestines. The head of my cock was having a very pleasant time in
Selena's rectum. It was hot and wet and under pressure and I was
getting very turned on. Without thinking I found myself pushing down
so that my cock went further in.

"I need to shit," Selena warned me.

I kept up my steady pressure and my cock continued its progress. The
pressure of Selena's anal sphincter grew as it encountered the wider
part of my shaft. Suddenly Selena's rectal muscles cramped and I
pushed in hard, bottoming out about 5 inches in. Selena yelped with
discomfort, and I could see her face had developed a bright red
flush. She tried in vain to look over her shoulder to see what I was
doing. Her rectum kept cramping but nothing could escape because her
sphincter was so tight around my shaft. Slowly she became accustomed
to my size and regained control of her muscles. Rather than pushing
hard, I tried to stretch Selena with little nudges, gently adjusting
my position so that my cock could follow the natural contours of her
innards.

"Shit," Selena gasped, "what are you trying to do to me? How much
more of that thing is there?"

"Another half inch."

Selena cramped again, and I pushed in hard. At last I was in all the
way, my balls and belly crushed against her firm, cool buttocks. The
pressure of her anal sphincter around the base of my cock was too
much, and I felt a huge pressure build within me, resulting in a huge
throb that seemed to course through the whole of my body before
sending a jet of sperm through my cock and into Selena. Spurt
followed spurt until my whole body felt exhausted.  

Selena had felt my cock throbbing and spurting in her rectum.

"Fuck, you've just cum in my arse," she deduced, "I knew you were
queer."

My cock shrank following the intense orgasm. I gently slid it out
until only the head was in her rectum.

"I'm pulling out. Clamp down hard when as soon as you feel I've gone."

In one swift motion I pulled out my cock, and only a dribble of
yellow liquid escaped, which I mopped up with kitchen roll.

"Do you think you can hold it and make it to the toilet?" I asked
Selena.

"I think so."

"Good. I'll release your legs first."

I released Selena's ankles, but made her keep her feet on the towels
rather than let her legs dangle and put further pressure on her full
tummy. Then I released Selena's wrists, and clasping her by the hips
again, I slowly lowered her from the table. I didn't want any
accidents from her swollen rectum caused by moving too quickly.
Selena make her way gingerly upstairs and I followed her. When she
went into the toilet she made to close the door but I stopped her.

"I need to see how clean you are."

"Fuck, I can't believe what a pervert you are!"

Selena took a seat then released her muscles. Yellow liquid exploded
into the pan, tainted with a few small brown lumps and white strings.
I was disappointed, but decided to proceed anyway.

"Clean yourself up and come downstairs when you're ready. Do you
want another coffee?"

"Yes please."

I made a couple of coffees and took them downstairs.

I heard the toilet flush then water running, then Selena emerged and
came downstairs.

We drank our coffees in silence, both of us tired but for different
reasons. Selena finished first.

"What now?" she asked.

"Can you stand on your head?"

"Yes, I'm pretty good at gym."

I put a towel on the floor and indicated to Selena.

When I came back downstairs with my bucket of plaster and 'cake
icer', Selena was balancing precariously on her head. I pulled the
hoists over and cuffed her ankles to them, then gently raised them
until they were bearing Selena's weight. Her face had gone pink where
the blood had rushed to her head. She kept her hands on the ground to
stabilise herself.

"How long do I have to stay like this?" she asked uncertainly.

"About half an hour," I replied.

Standing behind Selena, I judged she was positioned about the right
height, but her legs were together. I carefully pulled the hoists
apart and lowered them slightly so that Selena's legs were pulled
wide apart yet she wasn't dangling in the air or supporting her whole
weight on her head. I filled the 'cake icer' with plaster and
selected a small nozzle.

I stood behind Selena and positioned the nozzle against  her anal
sphincter.

"Push out please."

Selena pushed out the tip of the nozzle slipped inside. I began
squirting the plaster into her rectum, watching as her concave tummy
started to fill out. I was hoping gravity rather than pressure would
suffice in getting the plaster into all the nooks and crannies of
Selena's rectum. Occasionally she released an odourless fart as the
plaster displaced the air introduced by the previous intrusions. In
all, it took three batches of  plaster before Selena was full and
plaster started oozing back through her anal sphincter when I tried
to squeeze in any more.

"I need to shit," Selena warned me.

"I've finished. Just try to hold it in."

Selena's need to shit passed, and while I waited for the thirty
minutes to pass I tidied  up the various paraphernalia from the
previous exercises.

"I'm feeling a bit queasy," Selena warned, "being upside down is
helping me digest my lunch."

"Just five minutes more."

Selena was looking a bit green, but somehow she managed to hold on
until the thirty minutes were up and I could gently lower her to the
ground. She lay there on the towel while she recovered.

"Is that it? Another hour and a half and this cast is solid and I
pass the world's biggest turd?"

"Actually I'd like to take one more cast, but it could be a bit
dangerous if you don't follow my instructions."

"No fucking way, you are not pouring that gunk into my mouth or up
my nostrils!"

"Actually I want to cast your pee hole."

Selena looked at me with surprise. 

"Yeah, whatever. It's your money."

"Can you go for two hours without peeing?"

"I guess so."

"Are you still feeling sick?"

"No, I'm okay now."

"Let's get started then. First we need to visit the toilet."

I followed Selena up the stairs and into the toilet. Instinctively
she tried to shut the door in my face, and again I prevented her.

"I forgot you're a kinky pervert," she said by way of apology.

"Take a seat," I indicated the toilet.

Selena sat down.

"When you pee, there's a valve at the end of your bladder. When you
relax your muscles, the valve opens and pee can escape and come out
of your pee hole. Try it now."

"You pervert, you just want to watch me pee again, don't you!"

Although I had see her peeing before, this time Selena seemed rather
self-conscious about peeing in front of me. Selena held her outer
labia open and relaxed her muscles. A short burst of pale yellow
liquid emerged and fell into the toilet bowl.

"When you relax the valve, sufficient pressure can force substances
up your urethra and into your bladder. That would be very dangerous,
especially if it were plaster. If you're still willing to let me make
the cast, you must not try to pee while it's setting. Do you
understand that?"

"I think so."

"In that case let's do it. I'll need you in the same position as
this morning."

I left Selena on the toilet, trying to force out any remaining drops
of pee from her bladder.

When Selena joined me in the studio, I prepared her the same way as
in the morning. I lifted her onto the table, cuffed her wrists to the
far table legs, then cuffed her ankles to the hoists and lifted and
separated. When Selena saw me with the string and the clothespegs,
she protested.

"Do you have to use those again? They really hurt where they dug
into me."

"I'm afraid so. I have to keep you open."

Selena's outer labia still had red marks where the clothespegs had
been. I made sure I attached them to slightly different points this
time, but Selena winced as they took grasp then winced again when I
tightened the string to pull Selena's outer labia wide open. I filled
my 'cake icer' with plaster and fixed on the finest nozzle. I held
the nozzle to Selena's pee hole.

"I know I said not to pee for a couple of hours but I need you to
relax the muscles round your pee hole. As soon as you feel the nozzle
go in, tighten them again. When the plaster reaches the valve to your
bladder, you'll feel it. Tell me immediately. Do you understand?

"Yes," Selena replied confidently.

Selena relaxed her muscles and I was able to insert the tip of the
nozzle into her pee hole. I squeezed gently, so gently I wasn't sure
any plaster was being squeezed out of the 'cake icer' but Selena soon
put me right.

"That feels really weird, as though I'm peeing but I'm not peeing."

"Does it hurt?"

"No."

I continued my gentle squeezing. Suddenly Selena gasped.

"Ouch, that stings."

The plaster had reached the valve to Selena's bladder so I
immediately stopped squeezing and removed the nozzle.

"Now we have a couple of hours to kill. Would you like a coffee?"

"Yes please."

I made two more coffees, and again I held up Selena's head with my
hand while holding hers up to her mouth so she could drink it. In
retrospect, giving her coffee wasn't the brightest thing to do.

"Would you like some music while we wait?"

"Haven't you got a telly?"

"No I don't think so. I've only found a CD player and a few CDs."

"What CDs are there?"

I went to a cupboard and looked through the small pile of CDs inside.

"Jazz, jazz, jazz and jazz.They're all jazz. I think the previous
tenant must have been a jazz fan."

"I guess it's jazz then."

I selected a CD at random and placed it in the CD player. I wouldn't
have been surprised if the batteries had been flat, but music flooded
the studio. It was actually quite restful and as I sat in a chair,
listening, I felt my eyelids grow heavy.

"HEY MISTER!"

I awoke with a start. The music had finished.

"I need to pee."

Selena was suffering like she had been when I returned with the
lunchtime pizza, only she couldn't pee on the floor. I looked at my
watch. Still twenty minutes to go. I didn't want to risk it. Needing
to do something immediately, I wet my fingers with saliva, thrust
them into Selena's cunt and started rubbing her G-spot. The reaction
was incredible. Selena went from desperately needing to pee to
panting hard with pleasure in less than half a minute. I hoped to
keep Selena on the edge of cumming until the twenty minutes were up
but her panting quickly grew shallower and more desperate and the
familiar pink blush spread over her skin. The nub of Selena's
clitoris was hard and upright between her open labia. I sucked it
into my mouth and gave it a playful nip with my teeth. Selena
screamed, every muscle in her body went rigid, then she thrashed
around violently and fainted. I was scared she'd had a seizure. I
slapped her face gently.

"Selena! Can you hear me? Please wake up."

Slowly Selena came round.

"What the fuck! That was to die for!" she said, groggily but with a
broad grin on her face.

"You scared the hell out of me. I thought you'd had a fit."  

I looked at my watch. Ten minutes to go. Since Selena still needed
to pee, I decided to risk it. I gently pulled the cast out of
Selena's pee hole, two inches of slender, gently curving plaster the
thickness of a drinking straw, then I placed the empty bucket at the
foot of the table.

"You can pee now."

I could see Selena consciously relax her muscles, then she gasped
and tensed them again. No pee emerged from her pee hole. I panicked.

"Oh shit, I've screwed up. I've got to get you to a hospital
immediately. Get dressed."

Selena couldn't move because she was still restrained, but she
relaxed her muscles again and a few drops of pee emerged from her pee
hole and dribbled into the bucket. Suddenly the drips became a gush,
arching out over the bucket and landing on the floor. I picked up the
bucket and held it to catch the stream.

"It stung like hell when I tried to pee the first time," she
informed me.

Leaving the yellow puddle on the floor, I removed the clothespegs
from Selena's labia and released her from the restraints. Again she
was unsteady on her feet and I had to massage her cold legs to get
the blood flowing.

"I need you bent over the table again to remove the cast from your
rectum," I warned Selena.

I lifted her up by the hips and lay her face down on the table, her
legs dangling down. I prised Selena's anal sphincter open with my
thumbs but I couldn't get hold of the cast.

"I can't grasp hold of the cast. Can you try to force it out using
your internal muscles?"

"You mean you want me to pass the biggest turd in history all by
myself?"

Selena thought this was funny, and burst into a fit of giggles. When
she recovered, she started pushing hard. Her anal sphincter opened
and about a quarter inch of cast poked through. That was just enough.
I grasped it with my finger tips and pulled. Selena gasped at the
feeling of her anal sphincter being forced wide open, and it took
quite a bit of effort to ease the widest part of the cast through the
narrow hole.

"Ouch, my bum feels sore," complained Selena afterwards.

Her sphincter wasn't torn, but it was weeping slightly. I got some
antiseptic cream from the medicine box and massaged it into the
sphincter.

"Mmm, thank you, that feels better."

I lifted Selena down from the table.

"That's all the modelling I wanted from you. What time do you need
to be home?"

"About five please. Then I'll be home just before my mum finishes
work."

"You'd better get dressed then as we need to leave fairly soon."

Selena disappeared upstairs. My mouth was parched from falling
asleep in the chair and I needed another coffee. I mopped up the
puddle of pee using kitchen roll, and threw it in the bucket. I
gathered all the used towels and took them upstairs, piling them on
top of the laundry basket. I poured the pee and kitchen roll from the
bucket down the toilet and flushed it.

"I'm making another coffee, would you like one?" I called out.  

"Yes," Selena shouted back from the bathroom, where she was getting
dressed.

I made us coffees and took them downstairs. There I set about the
rest of the clearing up, turning the thermostat back down, switching
off the ventilator fans and the lights, undrawing the blinds, and
moving the table back to the side of the room. Selena appeared at the
top of the stairs. What a transformation from when I first met her!
She looked the archetypal angelic schoolgirl, as though butter
wouldn't melt in her mouth. Her blouse was properly tucked in and her
skirt fell to just above the knee.

I examined the rectal cast as we drank our coffees. It looked a bit
like a banana with the end cut off. The cast wasn't smooth, there
were quite prominent indentations round the circumference.
Disappointingly there were brown and yellow smudges on the cast
because Selena hadn't been completely clean inside. I couldn't sand
them off because that would compromise the detail, and anyway the
stains might permeate through the plaster. I could make a mould from
the cast, then another cast from the mould, but that would be a
finicky time-consuming job. A better solution would be if Selena
would agree to a resit with three or four proper enemas first, but I
was  confident she would never agree to that after what I had put her
through today.

Coffees finished, I took the mugs upstairs and left them with the
previous empties in the kitchenette sink. There was a small safe on
the studio wall. I opened it, making sure Selena didn't see the
combination, and secured the three casts inside.

"You think they're worth that much?" Selena asked with a bemused
look on her face.

"Much more than I'm paying you, but I am the artist!"

I ushered Selena to the car, locked the cottage door, then I got in
and drove back the way we had come. Periodically she farted as her
rectum shrank back to its normal size and expelled the air trapped
inside. Every time she farted, Selena giggled infectiously and I
couldn't help smiling too. We reached the outskirts of town before we
hit the manic mothers on the school run.

"What are you going to do to me next time?" asked Selena, as we sat
there in the traffic.

Next time? I hadn't dared to hope there might be another time, yet
Selena herself was suggesting it! She noticed the look of shock on my
face.

"What's wrong? Am I too expensive for you? I'm willing to negotiate
on the rate."

"No, it's nothing like that. You could have been seriously hurt
today and yet you're willing to do it again?" I asked her.

"I'm not going to live the rest of my life without another orgasm
like that last one. Besides, I'm not sure you are queer and I want to
tempt you into fucking me properly."

I thought for a minute.

"When? How do I get in touch with you?" I asked.

"I'll come round to your caravan. I'll let myself in, no need to
give me a key."

I made a mental note never to leave any valuables in the caravan.

Stopping and starting through the traffic jams, we were nearly
halfway through town now.

"Where do you want me to drop you off?"

"Back at the caravan site will be fine."

Eventually we got through the town centre traffic and I pulled into
the caravan park's car park. Selena opened the passenger door and
jumped out.

"Just a moment. Aren't you forgetting something?" I called after her.

She turned back towards me, a puzzled look on her face. I peeled off
another fifty pound note and held it out to her. She looked around,
then made a sort of hunching motion and crawled back into the car.
She seized the fifty pound note then to my surprise she leant over
and kissed me passionately on the lips. Then she gave me a wink and
reversed out of the car, waving the fifty pounds. That's when I
noticed the caravan park's owner, an elderly widow called Mrs Dawson,
watching us closely. Selena's hunching motion had hitched her skirt
right up, revealing her upper thighs and the crotch of her white
panties. While bending over to kiss me the skirt had ridden up over
her hips giving Mrs Dawson an eyeful of pantie-clad orbs. What a
girl! How the hell was I going to explain that one away!