The night passed quietly, the girls could barely sleep because they where too afraid of what the next day would bring. What kinds of animals would they be turned into first? Would they ever be able to escape? They didn't really have much of a choice but to stay for now, but they didn't have to like it.
When the time came the girls where herded into a room where Silas was waiting, looking them over.
"Very good, you're all here," he said with a smile. "You're in luck, a party has decided to hire all 5 of you for the night. They're horse athletes and are celebrating the end of a recent competition and want some mares to spend the day and night with. Be on your best behavior or there will be consequences."
The girls gulped as they where each given a serum. Silas looked at them expectantly, and they knew they didn't have a choice so they drank their serums without any further prodding.
Alexandra's body shuddered as she felt it change, her hands and feet changed to hooves as brown fur covered her body. Her body elongated and bulked up as she became a horse woman with her face pushing out and her tail forming. She let out a whinny as a horn grew out of her forehead.
"What the... what did you do to me?" She asked, moaning as she felt a heat rising in her new horse vagina, she looked at her friends they where all horse women but none of them had horses.
"The Stallion that hired you has a Unicorn fetish," Silas said with a smirk. "The serum was hard to work up, but we got it figured out. Now, lets get you dressed and to your new stallions."
The girls where so horny they didn't have time to argue as they where dressed in revealing lingerie, they didn't care that they where animals any more, they just wanted to be filled with those big horse cocks.
Silas lead them into a special room that was designed like a barn's interior, it was just a matter of waiting for their stallions.