Jen saw that she was standing in front of Claire's house, her best friend. That was exactly when she got home. Claire loved horses and approached her, admired by the animal.
As hours had passed, Jen believed she could speak, so she raised her tail and said "Claire, it's me, Jen, you need to help me."
"Jen? Where you are? I was worried that you didn't show up at school today and nobody in your house knew about your whereabouts." Claire said
"I'm here, I'm the mare's ass. I was transformed with the T&D curse." Jen said
Claire was amazed to hear this and notice that her friend's voice was coming out of the mare's ass. She then used her practice of handling horses to guide her into the garage.
"Now tell me, what is it like to be a mare's ass?" Claire asked
"What a silly question is that? I need to get back to normal as soon as possible. It's strange that I'm a butt, but it's bad to be connected to an animal." Jen said
"Since this is how I believe I can help you. Transform or Dare" Claire said
"Transform" Jen responded quickly, already hoping it would return to normal, but Claire had other plans in mind.
Smiling, Claire said "Exactly what I wanted. For the transformation, the mare's head will disappear, then the neck will join my rear and absorb my legs. In the end I will be a centaur and you will be my ass. Everyone will believe this is normal and will remember you as always having been my ass."
As soon as Claire finished speaking, Jen could feel the mare's head being absorbed by the body as she watched Claire undress.
Finishing undressing, Claire went to the front of the mare and put her ass, merging her body and having her legs absorbed next.
With the transformation complete, Jen asked "Why did you do this Claire? I thought you were going to get me back to normal."
"You know that I love horses. You also told me that being an ass was weird, but you didn't say it was bad. And you also said that it was a problem to be attached to an animal. Taking all of this into account, I only combined the useful with the pleasant." Claire said