As the mix of juices was leaking out of your vagina and you started to eat the oats that had been put out for you, you realized that your memories of your human life were starting to slip from your mind. Your memories of your parents when you were young were replaced by memories of spending time with a pair of horses that you now recognized as your parents.
You remembered being sold to the zoo by the farm that you had been born on, but as your mind kept slipping these word were losing all meaning to you. It was your old home, this was your new home and you were comfortable here, your human mind was screaming as it tried to re-assert itself but the pure instinctual horse mind was pushing it away.
You were gone, all that was left was Princess.
Your last vestiges of humanity slipped away as the woman from before walked out pulling the two new horses behind her and put them in their stalls. She smiled when she moved up next to the stall where Princess was and smiled.
"Excellent, a shame that you had to lose your humanity, but this is for the best," she said with a smile. Princess was going to make a fine broodmare for the stables, and for getting more horses. "Don't worry, you're going to be just fine."
Princess just looked back at her dumbly and went back to eating. The attendant smiled and looked around as she thought about what to do next.