Just as the stallion backed off, leaving you to bask in the feeling of being fucked hard by stiff equine dick, Dave came back and hopped over the fence to where you were standing. He reached out and ran a hand down your back as he spoke.
"I see you met Champion here. He's a purebred retired race horse that was in need of a mate. I'm so glad you showed up and took a liking to him. The wonder of my farm is that whenever I need an animal to breed, I've only got to send out the job applications. You're really going to like it here. You're going to be bred over and over to give me all the purebred horses I could ever ask for and if I ever stop needing them, I'll just turn you back and change you all over again. Who knows, you might get Max, our black angus bull. Originally he was going to be just for beef but I've grown to like him."
With a couple pats, Dave soon headed off back to the large farmhouse and let you come to realise what sort of situation you'd landed yourself in. You knew precisely what had happened but you didn't care at all. Your now no longer virgin horse pussy was full of Champion's semen and soon enough you'd be pregnant with a hopefully healthy foal. You could already feel the memories of your human life begin to fade and disappear. You were here for one reason and one reason only, to be bred over and over and maybe even changed to supply another animal with release. For all you knew Dave could need a little release too, so to that need you'd comply and fulfil whatever fantasy he had.