One day, when we got to the farm, there was a  new horse and a pony in two of the stalls that had previously been empty.  The horse was a stallion and the pony was also a fully equipped  male  and  I  knew  from the way Joy looked at them that she wanted to "try everything". When John came in for lunch, he told us that the stallion and pony were being  "let out to stud"  and  would  only  be boarding with him for a few weeks. John's tractor had no sooner rounded the barn than Joy  was in  the stallion's stall stroking his strong  back and  removing her clothes.  When she was naked, she climbed up on his back and lay down to slide  her  breasts and pussy around his shiny hair. Fortunately, he was very gentle (having been ridden for two years)   and didn't mind her being on his back, but I warned  her that  an  animal  so  big  could easily  hurt or kill her without intending to.  She promised to be more careful and went to the pony to examine his balls and dick. She knelt beside him and  slid  back  the sheath of his dick.  It appeared to be about an inch to an inch and a half across  and seemed to have the potential for substantial extension.

Next, Joy returned to the stallion and checked his "equipment"  as well.   He was securely tethered in the stall but he danced around a  bit  as her hands went to work trying to bring  forth  his erection.  After a few minutes, she had coaxed about  four  or  five inches of his dick out  of  the sheath and it was at least two inches across.  She leaned down  (staying well clear of his hind legs) and took what she could  into her mouth.

Due to  it's girth,  she could only manage two or three inches of the end and her mouth  was  stretched as wide as I had ever seen it at that.  Of course, I was taping all of this and she turned to me  and the camera with a truly wicked smile on her face. "I want this one.", she said.   I laughed and said  she was a dreamer,  but the pony was a possibility.   Then I suggested she at least finish what she had started and she immediately returned to stroking and  sucking  the  stallion's  firm pole into her mouth.

She stopped again and said she wanted the horse to fuck her.  I told her she couldn't get under either of these large animals safely, but I would try to come up with a scheme to make it  possible and  safe  for another day. Satisfied with that for now,  she took him back in  her mouth and worked his shaft (now,  at  least  12  inches long)  until he began to  come in torrents.   Her mouth was  flooded  at once and she was forced to release him to come all over her face,  neck and breasts.   His cum overflowed her  mouth  and dripped down her chin as she swallowed what she could and gasped for air.  The stallion came for at least twenty seconds and at one point, his rear legs seemed to buckle slightly  and  I started to pull her clear, but he regained his footing and  she continued  to  bathe in the horse's hot semen.  When he was finally done,  she released her grasp on his receding member and walked out to lie in the warm sun, still drenched in his seed.  I followed her  with  the camera

and recorded  as  her  hands  roamed  through the sperm covering her lovely body.  I thought about how tiny her body looked beside this massive beast and was convinced she would never be able to handle an organ of that size in her tight pussy.

Two days later,  we returned to the farm at about eight in the  morning, after John had gone out to the fields. I rigged  a strong sling under the pony that would support his weight and  found  a  long crate that was just the right height for Joy to lie beneath the pony on several blankets we had brought along.   With her "bed" prepared, Joy began preparing the pony with her (by now) expert hands and mouth. When she felt he was ready she crawled under him  and  positioned  herself  on the crate. His cock was resting on her belly as she stroked it and slid further  up  the  crate to position the tip between her soaked lips.  She  seemed  in a rush to get the pony inside her and I had to caution  her  to  slow down and take her time. I told her not to take any more than  she  was  absolutely  sure  she could handle as I didn't want to have to rush her to  an  emergency  room and explain what  had happened.  That thought seemed to sober her up a bit and she slowed down. She slipped the pony's cock up and down the gap in her lips a few times and positioned it for entrance.  She held it  there for a few seconds, then started working her way a little at a time toward the  bottom  of  the  crate.  There was a little  resistance before the head entered her about an inch and I could  tell  by  the tightness of her facial muscles that she was already  stretching  as far as she ever had.

The pony started getting restless,  wanting  to  thrust into Joy and I stroked his back and flanks to calm him down. She had worked two or three inches in and her face had relaxed a little as her muscles learned to accommodate this huge intrusion.  She continued to stroke the shaft as she moved down to take a little  more and, suddenly, the pony pushed forward another two inches in a single thrust.  Joy groaned loudly and I was concerned that  she had been hurt but it was soon apparent that the groan was of  pleasure at  being so filled and she started rocking her hips to lessen the depth of the pony's thrusts while allowing his penetration to deepen only slightly each time.  Gradually, she worked most of the animal's length into her depths and let  him  start fucking her at his own pace.   She said  he  was really  hitting  bottom and  stayed far enough  up the crate so that the sling prevented him from going any deeper. She was moaning and  calling  out  from the fullness of her pussy when the pony suddenly let go.  With her pussy completely  full  of pony cock,  there was no place for his cum to go but out and it squeezed between his dick and the walls of her pussy and started pouring onto the blanket under her. Joy started cumming and the  lower part of her body thrashed beneath the pounding of her  four  legged  lover.   With her hands,  she scooped up some of the  semen gushing from her body and covered her face with it, getting  as much as she could into her mouth.

Finally,  I backed the pony up a  little and helped her crawl out  from under him.  She lay on the straw of the stable and breathed deeply as I watched the lips of her pussy slowly close to cover  the  gaping cavern soaked in cum.   When she had recovered, I took her  into  the house to shower and dress.

Riding back from the farm,  she said she had never felt so full in  her  life,  but she still wanted to try the stallion.  I reminded her of the difficulty of working with such a large and spirited  animal  and  told her I really didn't like the idea.  That night,  we made love on her large bed and I  was surprised  to find that her pussy had returned almost to it's original tightness. My  entry  was a little easier than usual but the friction was still  much tighter than any other woman I had ever been with. She said that I still felt the same and that she still preferred my cock to any animal but that the feeling of being filled (almost like  she was going to split up the middle) was completely different.   She insisted  that we try the same sling and crate arrangement with the horse  and  I made her  promise  that she would stop if  she  experienced  any  real  pain.   She assured  me  she  would know if it wasn't going to work and reminded me that even a horse cock is  smaller than a baby.

A few days later, we were back at the farm just as John was finishing his lunch and preparing to go back out to do  some  plowing.  He asked how our research was going and Joy told him we were learning new things almost every trip, giving me a small smile as she said it.  As John mounted his tractor,  he  turned and said, "Better watch out around that pony.   He's been acting kind  of frisky  the last  couple of days.  I think they're getting him out to stud none too early." We assured him we would be careful and waved as he drove off.

It  took a little time to rig the sling under the stallion and I  added  a  couple  of  ropes leading back to large posts behind the horse so  his  forward  movement would be strictly  limited.   When everything was ready (I  double  checked  everything),  she lay down on  the blankets with her face  along  side the stallion's cock and  stroked  and  licked him to full erection as I ran the video camera.  She smiled at the  camera  and  kept saying how nice the  horse's  cock  felt and tasted and  how badly she wanted him to fuck her.   She was putting on  a  real  show  for  this  tape and wanted to be the ultimate slut.  She took more of the horse in her small  mouth than I would have thought possible (at least four or five inches) and talked about how she'd love to have him cum in her mouth if she didn't have other plans.

By the time Joy turned around and put the huge head against the swollen lips of her pussy, the horse was at least sixteen  inches  long  and  two and a half inches around.  I put down the  camera  and  applied an entire tube  of  K-Y jelly to the organ and the waiting pussy it would try to invade. Joy had the tip inside her almost  immediately and pumped the shaft with her hands to ease  a  little  of  the  massive member between her already  stretched  lips.  There was an intense look of concentration on her face and I  knew  she  had made up her mind she was going to make this work, somehow.  The horse was  dancing  around  in  agitation and obviously wanted to get on with the business at hand, so I petted and soothed him as best I could and she slowly worked a little more into her tiny body. By this time, the lower portion of Joy's  belly  was  already  beginning to bulge out  slightly  from the mass of firm flesh within and I could see her  progress  directly  as  the  bulge moved  ever  so  slowly up her stomach.  She took about twelve inches before she groaned out  that  he  had hit bottom and was pressed firmly against her cervix. 

I could clearly  see  the entire length outlined on her belly as  she  released  her grip and let the horse set his own pace.  I couldn't  believe  what  I was seeing. This  beautiful,  petite brunette was being fucked completely by a full grown stallion and  loving every inch of it.  Her  head  thrashed  from  side  to  side as he repeatedly  flicked  his  hips and strained against the ropes of the sling wanting to  release  his  seed  deep into this strange mare.

When the horse started to cum,  the  pressure  was too much for her  delicate insides and she quickly moved up on her bed to relieve the pressure.   She moved farther than she intended and when the stallion drew back for a thrust, his cock sprang free of her pussy  grip  and began spewing cum  the length of her body.  She was soon  covered from her crotch to  the hair at the front of her head and she opened her mouth wide to catch what she could as her  hands  went  to her pussy to complete her own monumental orgasm.

"I've heard about it,  but I wouldn't have  believed it if I hadn't seen it with my own eyes!"   The voice came from behind me and I  spun around  to see John standing about ten feet away.  I  remembered hearing the tractor motor shut off some distance  away  about  ten  minutes earlier, but hadn't given it any thought at the time as I  was  totally  wrapped  up  in  watching  and  taping Joy's tryst with the horse. John didn't seem angry, just stunned and  it  was  clear  he  had seen the deep fucking Joy had been  getting as well as the very wet climax.  I pulled her out from  under the horse and lay her, panting, on the straw. Then, I took John's arm and led him outside the barn.  I apologized for our behavior and explained  (truthfully)  that the lady was a well  respected  teacher and couldn't stand the scandal if this were to get out. I asked him what it would take for him to forget what he had just witnessed. He smiled and said,  "Look,  I don't even know your wife's name and she seems so  nice  I wouldn't want to see her get  hurt.  I don't suppose there's  any  damage to the horse,  and  I  don't  really  want  anything  from you folks."  He thought for a moment then said, "I wouldn't mind seeing her get it on with the animals from time to time and, if she's interested,  I  would  be  more than happy to give her a little human loving."

We visit  John  once  or twice a month,  now and he has willingly joined or little  "party of perverts",  as he calls it.  Joy has  never refused  anything  John  or  I  have suggested as a new adventure into the limits of her sexuality (if, in fact she has any limits).  John turned out to be a great guy and Joy loves to have him fuck her ass while I fill her pussy or she sucks me off.  Our video tape collection has grown  substantially  and  is  kept  in  a safe place.  Joy jokingly suggested that I post a couple of stills of her with the horse on  a computer bulletin board (her face not showing, of course).    I wonder if she really meant it?  We'll have to wait and see...