Gloria decided she'd keep her upper half, though with a few tweaks. She figured this out long before coming to the resort, but it seemed so exotic, she just wanted to get here first and see what was possible, and now she knew.
It wasn't that Gloria was turned on only by girls. But, she did find a certain attraction there, and she was just as turned on at the thought of how a guy felt having sex with her...with any girl...what they felt while they were doing it that made it so good for them the way it was good for her.
But, Gloria was turned on by horses, too. Their beauty. Their power.
So, if she was going to enjoy this whole experience, she'd make her human half a little sexier without any major changes, but she was going to be able to mount someone, with all the energy and power that had driven her desires, with everything below her waist becoming an awesome stallion.
As she thought about this, her hands wandered, one to her left breast, the other to her moist labia where she started sliding fingers in vigorously as she got more and more excited. As that happened, she noticed something getting longer and harder as the herald of the changes that were now starting.