It was when I was still living on my Grandparents farm, I was 14 and had a few experiences with the dogs on the farm. My mare was at the age of breeding and I had spent a few years bonding with her and we would go on walks around my Grandpa's land. We had stopped at a pond that sat off of a creek, she explored around the area and I stripped down to cool off in the creek. She was more than okay with me being around her and didn't get skittish at my presence at her backside, I knew that I wanted her and Dad had mentioned earlier that week that she was old enough to breed. (Not that there were any plans to do so, but that we would have to keep an eye on her around the studs.)
The sun was hot and the skies were clear, I laid on the smooth rocks of the creek bed and watched her trot around the bank of the pond. Her golden tail whipping around and as she turned away from me, I got full sight of her untouched pussy! The intense urge to breed her was washing over me, I got up and slipped my boots back on, put on my shirt (Unbuttoned) and slowly walked up to her. The sun warmed the drops of water on my naked body, my dick was rock hard and I forgot that the world was still filled with people that might wander on us. I caught up to her and got in front of her to give her a kiss, she put her head to mine and we rubbed our cheeks together. I knew that it was gonna happen at that moment, I kissed her and told her how much I loved her and how much I wanted her.
I took my time caressing her mane, shoulders, back and hind quarters! It was moments until I found myself at her pussy, I gently moved her tail out of the way and rubbed her cunt. She neighed at me and with my index finger and thumb, I pulled apart her lips and saw her clit flex outward. I couldn't handle it anymore and I licked her. She let me taste her a few times and then galloped away from me, I felt rejected at first and waited to give it another try. Once again, I got in front of her and kissed her and began caressing my way back to her waiting vagina and again she let me taste her for a few moments before neighing and galloping away. I had figured that it wasn't our time and gave up, I had put my underwear back on as quick as I could in order to catch up to her.
I took her by the reins and we returned home, Mom and Grandma laughed at me being in my slightly muddy underwear. (I had fallen back on to the bank of the creek as I tried to put them back on and just told them that I was cooling off when my mare ran off.) Grandma, was amused at the thought that I was running around the meadow trying to rein her in with just my underwear on. I took my mare back to the stables and found that we were alone once again, I needed another taste of her and I like to think she understood.
Once we were hidden in the stable, I went for another taste and she lifted her tail to present her pussy to me! I went in and ate her out for a good ten minutes, I had pulled my underwear down to jack off while I did so. Her clit pulsed at my tongue and it drove me crazy! I pulled a stool up to her and took her as my lover, she neighed as I pushed my dick into her and I sank into her with ease. It only took me five or six quick thrusts to bust inside her and I held onto her huge hind quarters as she flexed against my shaft and it made me squirt rope after rope into her! I could hear my Dad and cousin walking up to the entrance to the stables, but I couldn't pull out! I was in an intense personal high, Dad walked in and had his back to me as my cousin was blocked by the door. I pulled out immediately and jumped off the stool, I gave her pussy a quick slurp to clean her up. I pulled my underwear up and started taking off the reins and bridle, my cousin spotted me and came over quickly to see me in my muddy underwear and laughed. Dad got a chuckle too as he told me how his first horse bucked him off into a pile of manure when he was my age. I gave my new lover some feed and gathered my clothes as they continued to laugh at the thought of me running around trying to catch her while juggling my clothes.
I knew that my life was changing and I wish that I was more sensual with her in the beginning, don't get me wrong... I didn't mistreat my mare, I just wasn't as romantic back then with her. I just wish I was, now we are great lovers and she gets all my gentle loving and cuddles. But it would've been a more amazing memory to have been more emotionally attentive to her from the beginning.