I was riding my mare along the bridle paths behind my modest training/breeding farm when I came across the paddocks of the breeding farm 4 km away. My mare stopped of her own accord, but I didn’t mind. I enjoyed watching the magnificent breeding stock play in the fields. As we rested just off the trail, a young stallion groom brought a large stallion out to graze. My mare whinnied; stallion and groom looked up. The groom, a handsome young man, waved to me, and I waved back. The stallion, attracted by the scent of my mare, began to move towards us. The groom pulled lightly on the lead, knowing that at least 1000lbs of horse was no match for him in strength. The stallion stopped and the groom attempted to lead him away. Clearly agitated, the stallion rose onto his hind legs, giving me a view of his firm undercarriage. More accurately, he gave me a clearer view of his cock, which was unsheathed and dripping with pre-cum at my mare’s scent.

Looking at that horse cock I felt a surge of curiosity. I wanted to know what that cock would feel like sliding in and out of my pussy. I wanted to feel the stallion’s hot cum flow into my pussy. I wanted to taste the cum which would flow from the large head. I wanted to be gripped by his powerful forelegs and dominated by his pure animal strength. More than anything else, I wanted to be dominated by a stallion.

I had to get out of there.

I kicked my mare firmly, and she happily started toward the stallion. I wrenched her head around forcefully, unheeding of her gentle mouth. With another firm kick I sent my mount galloping toward home. My mare didn’t like being ridden at her fastest speed, but I knew if I stayed watching the stallion for too much longer I wouldn’t be able to control myself.

By the time I had gotten home, I had calmed myself enough to decide to tell my husband what had happened. I knew he might mind, but I needed to tell someone, and he was the only one I trusted enough to tell. I quickly untacked my mare and set her loose in a small field, promising her a good groom later, and then I ran into the house. I called to my husband, but he didn’t answer. Then I noticed the note on the table telling me my husband was gone to town to work on a deal, would I please take the mini horse for a walk to stretch his legs, the mare he was to be bred to would be there tomorrow. I smiled and thought to myself that stallion will get more of a work-out than anyone planned.

I knew I wasn’t loose enough to take a full-grown horse’s cock into me, but a mini horse was much smaller, and would fit into me no problem. I would work my way up to taking the monster cock our jumping stallion offered, but also keep my cunt tight enough so my husband wouldn’t suspect anything. First step, though, would be to take the mini horse’s cock in me.

When I stood up from the chair I had sat in, I knew I was in trouble. My cunt throbbed hungrily, and my knees were shaking. I was overcome with desire for a horse. I was glad that my husband wasn’t home, because for the first time ever, I knew I couldn’t be fulfilled by him.

I left my clothes in the tack room of the barn. I couldn’t help almost running down the nearly empty barn, and the few heads that poked out at me nickered curiously. I found our mini horse stallion, whose name was Cowboy, in his stall. I haltered him and tied him loosely to a ring on the wall, then sat on the floor. His large pinto cock head was already starting to poke out of its sheath, and I fingered it gently. Cowboy responded with a low grunt and another inch slipped out between my fingers. I rubbed it slowly, and was surprised that I couldn’t get my fingers to encircle the width of it.

I continued to rub Cowboy’s cock, and soon my hand was stroking a foot and a half of black and white horse cock. His cock was at least 2 inches wide, and the head was at least three, if not four inches. I could hardly believe that I was doing this, and I could hardly believe how close to an orgasm I was. Cowboy was grunting continuously now, and humping my hand gently. I reached up with my free hand and untied the quick release knot I had put into his halter rope, then leaned over and licked him experimentally. I was soon taking as much firm hot horse cock into my mouth as I could without choking, and Cowboy was grunting and thrusting his hips faster. I stopped for a moment and looked at Cowboy, then rolled onto my hands and knees to stand up. I was going to tie him firmer in the aisle and get a stool and try to slide his huge cock into my pussy. I didn’t get a chance to do any of those things, because as soon as I was on my hands and knees, Cowboy mounted me. I gasped as I felt his whole weight on me, but I held myself up as best as I could. I didn’t think Cowboy would try fucking me, he wasn’t that desperate, besides, he was a horse and I was human! I yelled at him and tried to kick him, but he only gripped me harder with his legs. Then I felt the head of his cock push at my cunt lips. I let out a yelp, and tried to pull away, but with one swift movement, Cowboy thrust evert inch of his cock into me. I could feel it slide into my cervix and I screamed. I thrashed about, but Cowboy grabbed a mouthful of my hair and thrust again. The head of his cock slid out before the next thrust and it nearly tore me as it went back in. Soon, though, I had forgotten the enormous size of my partner, and the fact that he was a different species, and just let myself go. I found myself thrusting back onto Cowboy’s cock, and moaning. The friction was amazing, and I had never felt so FULL in all my life. Cowboy continued his thrusting for nearly 10 minutes then stopped. His forelegs gripped me with vicelike strength and he thrust once more, harder than even the first time, and I thought he was getting readjusted. Then his warm cum flowed into me. I could feel it filling my cunt and flowing out around his retracting cock. Cowboy dismounted me and I heard a popping noise as his cock left my cunt, then warm horse cum, mixed with my cum flowed down my legs. I reached back with one hand and caught a bit of the mixture in my palm. I brought it back to my face and licked it clean. I had just been raped by a horse, and I knew that this was just the beginning of my adventures!