"I think I'll stick with horse," she said with a smile as she got the attention of the receptionist.
"Excellent, its always good when the subject knows what they want, it avoids a lot of problems," the receptionist said with a smile as she set out the paperwork. "Just sign here and everything will be set, its all just legal matters of course. Everything will be just fine."
Sarah looked over the papers, it was all pretty much legal things that she expected. She wouldn't sue the centers in the event of an accident, she basically confirmed that she was doing this of her own free will, that kind of thing. She nodded and signed it all, she knew that she was going to spend the rest of her life on a farm and she didn't really care what she was going to be doing.
"Alright, very good," the receptionist said and lead Sarah into the back. She was instructed to strip naked and wait for the people in charge to come meet with her to finalize everything.
Sarah complied, she felt a little weird being naked like this but then again she wasn't going to be wearing clothes ever again so it was something to get used to she figured. Finally after a few minutes a woman with short red hair and dressed in a lab coat came in pushing a cart with several syringes.
"Hello, you must be our new mare," the scientist said with a smile.
"Yep, that's me," Sarah said as she automatically covered her breasts and vagina up. "Is the process going to hurt?"
"No, not really, in the old days maybe but we've figured out how to make it as painless as possible," the scientist said and nodded down to the cart. "Alright, so with horses we have the formulas for several breeds that we need for re-population. Do you have one in mind or do you just want whatever?"
"I will be a..." Sarah said as she made her choice.