Horses! It's all true!

I was given the most docile mare in the stables, called Ruby. Ruby looked like she was asleep on her feet although one large brown eye opened and regarded me as I approached. I don't speak horse but she sort of snuffled, and I swear she was thinking, "Oh fuck. Another person who doesn't know how to ride." Getting on was interesting. But once aboard, I got it in a heartbeat. Usually, when my legs are this far apart, someone is fucking my brains out. The saddle was something else. Dear God, whoever designed horse saddles must have been female. The leather touches you just in that sweet spot!  We walked ruby on a lunge reign and I got used to the commands and movements required to wake her up and make her do something. Every rolling motion of that animal’s walk made the pressure on my clit almost unbearable. I looked towards my rear. There were about six girls, ranging in age from about 13-19, and all of them looked flushed.  After mounting, I was allowed to go for a walk (JUST a walk!) with the others; I wondered why there were no boys. I soon got my answer. My mind was on other things and wasn't on Ruby. I pulled a little on the reigns which made Ruby stop dead. My clit hit the leather hard and right there I knew why boys don't go riding much! Ow!  So, I joined the junior riders: Ann (13) Helen (14) and supervising Deanna (call me “Dee”) was 19. We were to go for a five mile walk which, if we behaved ourselves, would be allowed a small canter.  I joined with Helen at the back. We swayed in our saddles and made small talk. Helen had been riding for about a year and really likes these slow walks. She was flushed all up her neck; I could see down her top to her small titties, and they were flushed too. She told me she loves the feeling of, "All that muscle between my legs.” Hmmm, you don't know anything yet, girl.  About half way through, my clit was rock solid, I could feel how wet I was and I really, really wanted a cum. Helen saw immediately and said, "Lean forward. Just lean over the lip of the saddle. Works for me." I did as she told me and it moved the pressure slightly, but increased the rate and sensitivity of the touch. I came into my panties almost immediately.  Helen giggled, "I don't know how you held on so long. I've cum three times so far!" Then she shuddered a little and said, "Make that four.” I told her I was no stranger to outdoor cums, but this felt really good. I told her about my barn and the place near this walk where I like to masturbate.  Helen immediately said, "I'd LOVE to masturbate with another girl. Do you think, maybe?" I told her "Tomorrow, just here. 3:00pm"  I have no idea what, if anything will happen, but I do know I came five times that day, all on Ruby, I like Ruby.