"It's a halter of motherhood... It will turn you into a mare and your challenge will be... exactly what it says".
"Mother...hood... wait, you mean... I would turn into mare and then... give birth to a horse?"
The man just nods agreeing.
"This is crazy! How is this even a choice!" you say outraged.
"Listen... there aren't much choices right now. Amy is a stallion, a really god stud, but mentally she is not capable to do it.. with a horse. In 22 hours we would have to call... him a new name" reminds you. "She loves you. By wearing that halter, you will be in the exact position, just on the other side: if you both won't breed with each other, you will both be stuck. If you do, you will spend about 15 months as a mare, then you will be able to change back"
"It's... a lot of time" you say feeling like there really aren't any other options
"Yes, but the only other option is for her to be a stallion forever. Sadly, it's the only halter that would let you change back, the only other would... lock yourself as a mare, if stallion mounts you, this one is much better option. Also, the reality will change, nobody who doesn't know the truth won't miss you, it will be like you went on a trip or something for that time. I'm sure Amy will take care of you and help you with the pregnancy"
You blush hearing that... not only you were going to be mare, but also mounted by your girlfriend turned into stallion, then give birth to your foal and raise it. "You said, there is some kind of reward for finishing the challenges, right?"
"Yes, breeder guarantees that there will be a foal, perfectly healthy and fit foal. While as motherhood... the foal will obey you."
You remain silent... It was really odd thing to decide to.
"I'm not forcing you to do it. It's your choice. If you don't agree, I will understand, I won't blame you. You can go back home... when the time limit will pass, you will forget about what happened here, you will start a new life with no regrets"
About 15 months as a mare... Trying to get attention of your girlfriend, until she finally mounts you. Then go through pregnancy and give birth, then raise the foal... Could you do it?