The Experiment.
by Randall

This story contains very graphic descriptions of Male-Dog sex and
bondage. If either of these topics offend you, please do not
read. If you do read this story, then I welcome email of your
positive comments, questions, or helpful critisms to
keldric@hotmail.com

If you did enjoy this story, I have another story posted here. It
is titled "My Friend Brutus"

Thank you and I hope you enjoy.


Well, let me tell you a little about myself. I am a white male
who loves sex with dogs. I discovered this joy at age 13 and had
never stopped loving every bit of it. I have tried sex in several
different ways. I've found that there are 3 possible positions.
The first is obvious - doggie style. The second is a little
harder. You get some pillows or something and lie on them on your
back so that your ass is the correct height, but you are face up
with your legs sticking up. This one is fun and feels good and
allows you to hold the dog, but you lose a little of the pleasure
because you have to hold him. And  if you'd like a little
friendly advice... do NOT let him try to turn. It's amazingly
difficult to keep your ass high enough to not be in pain if he
pulls you off of whatever you are laying on. The thrid way is
simple, but requires training of the dog. You make him lie down,
then you roll him on his back, sit on him with your knees on each
side of his ribs, reach back, get his cock, and put it in your
ass. Sometimes they will not even try to fuck and swell because
this position feel so strange to them. Sometimes they will fuck,
but the knot doesn't go in so it doesn't give you the wonderful
feeling. And sometimes when all goes right, he's in, he's
knotted, and he cumming... it still just doesn't have as good a
feel and not nearly as much excitement somehow.

No, there is nothing quite as good as the regular doggie-style
position. It was by far the best for me. There was something
about feeling that big cock enter me and swell up and all I could
do was be at his mercy and enjoy it. I found myself wondering if
I could make this feel even better. My mind had came up with the
idea of somehow combining bondage with his fucking me. My first
thought was it will not work. I mean, obviously, paws can't use
rope. But then I began remembering some of the more erotic
self-bondage stories I had read. Than might work, but how can I
do it?

So, I began trying to figure it out. Well, if it is possible,
let's go step by step. I need something I can be on all 4's on
for a long time. That's easy enough to build. Something like a
footstool so long as it is tall enough and long enough. Simple
enough. There was a used furniture store not too far from home. A
visit yielded an automon just the right length for me to lay my
upper body on while on my knees.

Bow, to make the modifications. First, to make it the right
height I 'assumed the position' and cut off enough of each leg to
make myself the same height with or without it. For the bondage
part, I would need to be able to tie my torso down, to tie my
hands, and to tie my legs.

The Legs were simple. I put a belt on each leg of the device
which will fasten around each of my thighs. The torso was also
not difficult to come up with, but harder to do. I opened the
top, removed the padding from the middle, and attached a belt
which would fasten around my waist. Since I left the padding in
each end, tightening the belt would pull my waist down forcing my
back to arch and might even (I hope) allow him to go even deeper.
I also installed a belt at the top to go around my ribcage and
keep me from slipping off the side and loosening anything.

The arms were a challenge. I wanted my hands held to my sides
close enough to pull my ass open and let him have even better
access but at the same time not allow me to get to my cock.
Handcuffs would work. If I cut the chain from a pair of handcuffs
and mounted one 'cuff' on each side that would work.

Okay. I now have a good way to try bondage. Now I was looking at
the obvious.. how do I get out when we are done. Obviously I need
a key, but I need to have one which I cannot get to till we are
done. This I admit challenged me a little, but I came up with a
solution. I got a piece of strong nylon string and tied a ring on
one end and the key to the other so that when I hung the ring on
a hook about 6 feet from the floor, the key hung down just below
the handcuff. To keep myself from getting to it too early, I
froze all of the string except the ring into an ice cube. now i
could hang the ring on the hook and the key would be available
when the ice melted 1 hour later. to make sure of this, I put the
frozen key on the wall and tested it several times. It worked
fine. I put 1 hand in the handcuffs and made sure I could open
them with the 'key on a string' and I could.

I had one other problem. Once he's finished with me, I need to
get to the key. I could not move the thing with just my toes and
that's all I had when tied in. Well, it was either loosen my legs
which i didn't want or make the thing easier to move. Easier to
move seemed like a good idea anyway... this way if he turned and
decided to walk, I could go with him much easier. The simpliest
way seemed to be wheels. I took a trip to the hardware store and
found some caster wheels that were small enough to work but heavy
duty enough to not give under weight. I mounted the wheels on the
bottom of each leg.

Next thing was to try everything at once. So, I hung the key,
buckled all the belts, and put 1 hand in the cuffs and tucked the
other under me just in case. With the wheels even in such a bound
state I found it easy to roll myself to the key and opened the
cuffs immediately. I was ready. I would try this Friday night.

******

I had spent the last 2 days of the week since I finished my
device with increasing anticipation. Thursday night it had been a
great feat of will to wait, but I knew the longer I waited the
better it would be. I also knew that I didn't want to hurry or be
rushed. I had as long Friday night as I wanted. I had not been
this horny in many years.

I went through work Friday in a daze. All i could think of was
getting home. By the time I finally got off work I was like a
bitch in heat. My entire world was revolving around the
anticipated events of the evening. I arrived home at 6. It was
winter so it was cold outside and getting dark. I went in and
went through to the back door. I had planned on calling Brutus,
but as I opened the door he walked in. I think he knew I was
horny. He was horny as well it seems. Good.

Brutus was a quite large mixed breed. He certainly had some
Newfoundland in him from the long black coat, but he was about
the size of a Great Dane and he had a huge cock. It was about 14
inches counting the knot, bigger around than about any man's I
ever seen except maybe some of the 'bigger' porn stars, and the
knot was the size of a large naval orange. Years ago as a 13 year
old he had introduced me to that cock. It had been smaller then
as he was still just past the puppy stage, but I had thought my
hips were going to come apart. Now he was much bigger, but our
'times' together had stretched me so as he grew, I accomodated
him. It was all I could do to accomodate him, but I loved how
tight he fit inside me.

I took off my clothes and sat down so that Brutus could get to me
with his tongue, and he was licking me before I even completely
sat down. I put my heels up on the couch so my asshole was open
to him and he began to lick harder, shoving his long tongue
inside off me and driving me toward the edge.

After a few minutes of that I stopped him and got up. I had
decided I had had all the build up I could stand. I got the 'ice
key' from the freezed and hung the ring on the hook, then I made
Brutus sit and stay. He was smart and would obey commands well,
except while fucking me. I began strapping myself in. I strapped
in each thigh and tightened the belt around my waist till my back
was very arched and my ass was sticking way up. I tightened the
belt around my ribs till I knew I couldn't move. Then I put one
wrist in each cuff and using my fingers clicked them snug. That
was it. For the next hour I was helpless.

"Here boy" I called. Almost immediately I felt his tongue again
going up my now open and waiting asshole. I reached as far as I
could and pulled by butt cheeks apart and his tongue went way
inside of me. I had my first orgasm of the night, splattering my
load so hard that I felt it hit the floor between my legs and
splash on both of them. He continues licking me very deeply and
he was certainly hitting the mark as I was erect and building to
another orgasm almost immediately.

With men or women I've found that 2 orgasms are a good amount. 3
is avery goof time. With Dogs I usually have a minimum of 3 and
I've had many more than that. I'm not sure exactly how they
manage to hit the perfect spot, but they hit it and stay with it.

He kept licking and every lick was like a small amount of
electricity tingling and charging me up. He kept licking me till
I was about to cum again, then he mounted me. I felt his semi
hard cock hitting me just behind the ballsack. This was too low.
I tried to move to get us lined up, but that was impossible. Oh
no! The wheels. I had made it the right height, then I added the
wheels. Also my back being so arched pulled my butt up even a
little bit higher.

He jumped off again and started licking. Part of me was trying to
think what i might do and the other part could do nothing by be a
slave to that tongue and crave the cock I wasn't getting. I felt
him mount me again. Poke Poke Poke. He was trying, but he still
wasn't getting high enough. This kept up for what seemed like an
eternity. He would mount me, but not hit, then hop off and lick
me some more. I could sense his frustration, and I think he could
sense mine. His wonderful tongue getting me so ready for his
cock, then the mount and the desperate want of a cock which
wasn't getting there. I do not think I've ever been so frustrated
or so teased.

Then I notices something. Every time he mounted me we rolled
forward. I thought maybe if I can get us against a wall he can
push harder and get that little bit of extra height. I used my
toes and pushed myself till the front of the automon was against
the wall. Then I felt him stop licking again and I knew he was
going to mount. I pulled down on my butt cheeks as hard as I
could and he mounted me. Poke Poke right under.. poke poke just
under... if i can pull just a little harder.. poke and in he
went! I'm not sure, but I think I yelled in success. It felt
sooooo good. My whole being was the feeling of that cock.

As soon as he went in he almost jumped on top of my back, which
positioned him perfectly. I felt every inch of his cock go into
me on the first lunge. He was clamped down hard on my arms and
sides and jabbing his cock deep into my bowels. I felt the first
hot squirts of precum almost immediately. For a time we were one
creature with one purpose; to get his cock as deep as it could
possibly go before it swelled up and stuck itself firmly in
place. He was humping me, driving himself deeper with every jab.
I was pulling my asscheeks as far open as I could, almost
painfully, and trying to meet his strokes with what very little
movememt I could manage. I was even trying to force my insides
moer toward the back in the hope of getting him imbedded as
deeply as possibly.

The device I had put myself into had almost prevented me from
getting fucked, but it was now making up for it. I could feel his
knot swelling deep inside of me. I was pulling my ass open and
pushing from the inside trying to get him deeper and deeper and
because of my back arch and my ass forced upward and his lunge on
top of me to get inside, he was buried deeper than he had ever
been and I felt him going further. I wanted him further. I needed
him further. His knot, swelled about halfway but already too big
to exit me, was pushing on my insides instead of my asshole. It
was as if his knot was inside my bowels, not just my ass. Then as
he swelled more and more my asshole started to feel the tension.
Oh the sweet feeling. I was full, so full, and he was still
swelling. I felt him then begin getting longer and longer. It was
normal to feel that, but usually at his longest he was reaching
what he had already went past this time. He was so deeply impaled
in my poor wanton ass that it was almost painful, but everything
was only sheer delight.

Then his knot slowly reached it's maximum size. I was totally
helpless and being completely owned and fucked by this dog. I've
never felt so helpless. I've never felt so full. I've never ever
felt so much pleasure. As his knot reached it maximum I could not
hold back any longer. I came very hard. My insides bucking out a
huge load of cum stirred a renewed bout of humping from him. His
cock did not - could not - go even 1 millimeter deeper. It just
shook me inside. Then I felt him begin to cum very deeply in me.
I felt it hitting me in streams on a spot insude just below my
navel. I also felt his heartbeat. It was strong. It was fast. it
was a throbbing of his cock against a spot inside my ass which
brought my cock back to life instantly.

We stayed that way for a blissful eternity; we were a throbbing
cock squirting hot loads of cum into a completely filled asshole.
Very soon I was close to orgasm again. Being fucked by a dog
always felt great, but this was almost too good. I wasn't sure
nor did I care where I was. I only knew the throbbing of his
heartbeat in his cock and the squirting of his cum somewhere so
deep in me.

Then I felt him push himself up on his front paws. He was so deep
that it felt as if my lower intestines were moving a bit along
with the familiar and blissful feeling of having the inside of my
ass pulled. He put down his left paw on the ground beside me,
then his right came across my back and onto the floor on my left.
I knew he was turning. I felt him move to the side and raise his
hind leg to go over me, and at the same time I felt the knot
begin to rotate inside me. Dog knots are by no means round, but
are much bigger on each side than on the top or bottom, so a dog
turning is not like twisting a round ball, but more like twisting
2 smaller balls joimed together. I felt him slowly rotate his
cock inside me and I felt just a small amount of the doggie cum
leak out and go down my left thigh. Then we were ass to ass.

After he turned, I still felt him throbbing inside me and filling
me with cum. He would cum hard for a few minutes, then slow down
and be barely squirting inside me, then squirt hard again. I
could feel my stomach swelling with the amount of cum inside me.
He took a few steps and I felt the tug of his cock and felt
myself being pulled away from the wall. I felt as if I were truly
and completely owned by this dog. I wasn't his bitch. Bitches can
pull back and move a little. I was far beyond that. I didn't know
what I was. I was just a repetitive orgasm being filled by this
dog as I was wheeled around.

Also I realized that he was pulling differently. Usually he pulls
back and up. Today he was pulling back, but also down toward my
balls. It felt so good. It must be the added height. Yes, the
wonderful added height. I was cumming again because of this
pulling. I could feel every movement of his cock inside me. I
felt a wonderful almost-but-not-quite painful tug inside me as he
would walk around and I would be wheeled behind him. Somewhere in
my bliss I made a mental note that I needed a way to put my feet
up so my toes didn't drag along as he pulled me.

We continued our progress along the floor for another 10 or 15
minutes before I felt his massive knot start to soften and slide
in me a bit. In another moment he slid out with a pop. As he
walked away I could feel the dog cum running out of my ass and
down both thighs. There was no stopping it or closing my ass. I
just rested there and enjoyed the sensation. I had came often..
5.. 6 times? I could not remember. I only knew I was completely
drained and spent.

After a short rest, I raised my head to see if my key had melted
it's way down to my reach. Suprisingly it was not only all the
way down, but there was no ice at all on the string. I had been
at this a lot longer than I thought. I began turning myself
toward the string, but suddenly I felt Brutus push his tongue
into my asshole. Part of me felt wonderful, but another part of
me knew there was nothing left to give. I had came so hard and so
often already that I had aches in my abdomen and groin. I wanted
to keep turning, but Brutus was standing against my calf.

Moving forward was easy. I just put my toes down and push. Going
backward was harder, but by pulling with my toes I could achieve
this. I had tried during my earlier tests. Turning was a
different matter. I needed to put my toes down and turn my ankles
to the side. This was difficult, but possible, during my test.
This was impossible with my toes in a slick puddle of dog cum
while a 100+ pound dog was standing against your calf. Also we
play a lot just as friends so he assumed that my pushing was
playing and pushed back as he licked.

Now I said earlier that he was good at obeying orders while not
involved in sex, but it's like when we are having sex he
completely assumes alpha male and no order is going to be heeded.
I tried several. Sit! Down! Back! GET! but nothing worked. I just
felt him licking. And his cock had opened me so much that I knew
I couldn't close my ass. This was common. Inflate a large ball in
your ass and pull on it for a hour and it will be an hour or 2 at
least before things go back to normal.

The problem was I could feel myself getting hard again. There was
a discomfort in having cum till I had no cum left, but a stirring
caused from his tongue that was driving me toward another anyway.
Since I knew I had no choice at all, I submitted and relaxed. He
kept licking me for a long time. I must have had a quart of his
cum inside even after so much had ran out and on the floor, and
as it slowly leaked out, he lapped it out of me. As he licked, it
inticed my bowels to push more to my ass. As they pushed more
toward my ass, he licked it out. As he licked it out, more was
pushed.

Even in my spent condition, I felt the orgasm coming. I don't
know how long he licked, but after a while I felt myself pulling
my ass open so he could reach better and I felt him licking me
very hard. His nose was pushing against my ass and his tongue was
going way inside me and back out over and over. I felt him
pushing me forward. I was vaguely aware of something stopping my
forward motion about the same time that I came. My abdomen
contracted and I hurt but felt good. It was certainly true that I
came, but if anything really came out of me I'm sure it was mot
much.

I pushed my butt cheeks together as best I could and I felt him
stop licking me. I suppose he decided to investigate the 1 or 2
drops of cum he had enticed from me. My back had been forced into
a very steep arch for too long, my poor nuts were in double
overtime trying to fill the cum defecit inside me, my ass was
stretched and licked into total submission, and I was dying for a
good comfirtable bed to sleep in for a day or 2. I decided to
first push myself away and then try for the key again since maybe
he would be preoccupied enough with licking up my cum to stay
there. I pushed, but I could not move. I looked up and saw that
he had pushed me against the wall during his frenzied licking.

So, what do I do now? I'm not sure if I can cum again, but I
don't want to find out. If I try to go backward so I can turn,
will I'll get his attention? If I try to turn against the wall,
would I even be able to? If I try that probably would get his
attention. If I just stay here maybe he'll go lie down? As these
questions filled my mind, I felt a familiar fuzzy pressure on my
back. "NO!!", I thought and yelled at the same time. I was being
mounted again. I was panicking but there was nothing I could do.
Then i felt him poking just above my balls. It was sore there, I
assume because I had came so much, but he was far from my ass. I
had started out so angry about the height mistake I had made. Now
I was singing myself little praises. Poke Poke Poke... not even
close. I began to relax. I had to do everything I could to help
him in last time. If I don't help this time, maybe he will give
up. I knew we had already been locked for close to an hour and he
normally went about 45 to 50 minutes. He must be tired.

He tried to mount me 3 times, but he never got in. He came close
the 3rd time and I decided I had to do something. As he jumped
off the 3rd time and began to lick again... tingles.. the extasy
that tongue could give me mow even spent as I am. I finally
managed to get myself turned around and I started moving toward
the wall. The fact that he kept jumping on me to mount, then
going back to licking scared me a bit, but it did allow me
chances to move. I started toward the key. He licked me for a
little while, but I had nothing left to give and kept pushing.
Then he mounted me. He was still missing the target, but he was
pushing me along. Then he jumped off and began licking me again.
I was almost there. Another 5 feet and I would get to the wall,
then a turn and the key would be in my hands.

I pushed with my toes geting sore. 4 feet. Then he mounted me
again. He was missing me and doing my rolling for me. We banged
against the wall. As we hit, I felt his body slide up and his
cock hit the mark. "No!" I thought and tried as hard as i could
to push my butt cheeks together and clamp my asshole. He was a
little in, but not more than 3 or 4 inches. If I could just keep
the knot out. Jab jab.. I felt him go in deeper. More of his cock
slid in. I felt him begin to shoot his hot precum into me. I also
felt his barely swollen knot against my cheeks. I was trying as
hard as I could, but I was in the perfect position for him and he
was laying on my back and shoving using his weight. Also I was
well lubricated from all the licking and from the previous
fucking. Still I was trying. I knew I could not handle being
fucked that way twice. All of me was sore or aching. jab jab
jab... I felt his knot slide between my cheeks and hit the
outside of my poor ass. jab jab jab... he wasn't in but he was
swelling. This might work. I was holding my butt cheeks together
tightly. I felt more cum and I felt him swell more. jab jab
jab... I felt his expanding knot against my ass. I know if he
will swell a little more it will not fit. jab jab POP OW!. The
final 2 thrusts had gotten his knot tightly against my ass and
partly in and the third had forced that knot through the hole.
Once he got in I started wiggling trying to shake him off, but
all the little movement I had only succeeded in helping him plant
his cock deeper. Once he was in me, I knew his knot wasn't even a
fourth of the way swelled, but it had definitely hurt.

Now I was at his mercy. My invention worked very very well. He
was swelling and cumming in me. I felt him swelling to his full
size. It felt like he swelled a lot more than normal, but that
might be just because I was swelled inside from the last time. He
swelled to his huge state, his long cock went into me deeply and
he began filling my poor belly with cum again, and I could feel
the squirting and throbbing again. The problem was that I had
nothing left to give. This was not a mutual pleasure. This was me
being fucked... well and hard... and I was just the toy used to
get him off. I hurt. My belly still had a lot of cum from the
last time still in it and more was being added. My ass was sore
and tired and was being again stretched as far as it would go. My
back was arched so far that my ass was almost straight up and it
was getting tired very fast. I had cum so often that I didn't
think I could cum again if i wanted.

I just laid there for a while. I felt the throbbing so familiar
and desired. I felt the cum being forced into my already too full
and swollen abdomen. I was in his control and he was winning. I
didn't want him deeper, but I found myself spreading my poor
asscheeks and bucking as much as I could trying to get him
deeper. I didn't want to feel any more cum inside, but I found
myself relaxing and enjoying every squirt. And I didn't, couldn't
cum again, but I felt my cock getting hard and knew something
inside was responding to the blissful throbbing despite me.

I desperately wanted to touch my cock. I needed to stroke it as
this throbbing and squirting continued. Then he hopped off me and
landed on his paws on my left (ow), then turned and put his leg
over my ass (ouch), then spun himself inside me (ow please yes/no
stop/keep turning), then he walked to the middle of the room
pulling me along(ow oh oh yes). It was more than i could stand. I
was his toy. I was his warm hole to put his cock in. I was beyond
everything except the feeling. Every time he squirted his cum
into the lake in my bowels, he made me want more. Every time he
pulled that cock against my ass, he pulled me from my mind and
into a world of extasy. Every time his strong heart pulsed blood
through that steel hard cock and against the insides of me he
pushed me a little closer to orgasm.

Then I felt him completely stop moving except for the throbbing.
I felt him squirting inside me, but much less and slower. I was
still getting built up for an orgasm which I was still not sure
possible, but the slowness was different. It was different enough
that I noticed it. I looked around at him and saw him standing
perfectly straight and not doing anything but breathing. "You're
tired too, eh?" I said, "Don't stop now". He didn't seem to
respond to me. "Brutus" I said, but he still didn't look at me. I
was torn. My body was building up to the orgasm. There was no
stopping it. It belonged to his cock and I was just along for the
ride. My mind, on the other hand, was concerned about his
motionless unresponsive stance.

I did not have to wait very long to find out what was happening.
As I was looking back at him, I saw him slightly raise his head,
then he pulled against my ass pretty hard, then he made a sound
somewhere between a grown and a howl and I felt him begin
squirting deep long squirts of cum into me. It felt almost more
like he was peeing than cuming, but he was completely involved in
it. I felt my abdomen swell. The added pressure he was putting
inside me along with his huge cock was incredible. I felt like I
would burst like a balloon. Every squirt caused his cock to jerk
against the inside of my swollen and highly sensitized ass.

This was all I needed. My entire body needed that orgasm. Every
fiber craved it. It came from deep inside me. It was almost...
almost... almost.... yes.. yes... AHHHHHHHHHHHHHHHHHHHHHHHHHHHH!!
 AHHHHHHH   AHHHHHHH   AHHHHH Ahhhhh Ahhhhh ahhhh ahhhh  ahhh. I
was a living breathing cock impaled orgasm. Every fiber of me
came. I came so hard that I think my spine might have shot out of
my cock and then went back in.

I don't know how long I came. The logical part of me knows it was
probably about 20 or 30 seconds. The 'me' floating in extasy
remembers it more as lasting about 2 or 3 hours.

I didn't pass out, but I did totally collapse mentally and
physically. I just laid there feeling him overflowing in me and
hopeing that he was enjoying his orgasm as much as I had enjoyed
mine. Parts of me hurt. My entire cock, balls, and lower abdomen
were beyond moving. But i was still floating too high in the
afterglow to notice and to tired to care.

Shortly after this I felt him deflate and pop out of me. Cum
seemed to run out of me like a garden hose. He licked me for a
little while, but I was truly unable to care. I think he was
exhausted too. After a cursory cleaning, he walked to the corner,
licked himself clean, and laid down.

Somewhere I found the strength to spin my device around and got
hold of the key. It took a minute or so to find the keyhole and
get the cuff unlocked, but once it was open I reached under
myself and undid the belt. My back at first rebelled, but
eventually straightened. I opened the other belt around my chest,
then got the other cuff and both legs.

I felt a steady stream of cum run out of my ass as I stood. There
was no controlling my ass. After being fucked once it was usually
an hour or two before I returned to shape. After being fucked
twice I had no idea how long it would take. It was like i was
uncontrollably peeing from my ass. After a minute or two the flow
went to a trickle and then stopped completely. I looked at
Brutus. He was peacefully sleeping.

Somewhere I found the strength to mop up the worst of it and put
Brutus out for the night, and get in the shower. My ass was too
sore and swollen to wash, so i just delicately spread my cheeks
for the millionth time and let the water run over and in it for a
while. Then I half walked half crawled to my bed and was asleep
before I was even on the pillow.


Randall