Two things are going to happen before I send you out for your training. You're going to be be branded and you're going to be wearing a pony tail. I'll let you choose which you want to happen first. Give me a little whinny if you want to be branded first.
...Good girl, such a precious little whinny you have. Although I have to say that I don't think you've made a very good choice. After a branding, a pony's sphincter tends to tighten up a bit, and it can be very difficult to get her tail in, given the size of the thing. Not to worry, I'll find a way, but forcing it in can be a little hard on the burnt flesh. There, there, Pretty Pony... the choice has already been made. Nothing to do about it now, so settle down. If you're a good girl, I'll give you a sound ass fucking after the branding. Would you like that? Sure you would. It will loosen you up a bit and make it easier to get the tail in.
Stay still now. If I botch the branding I'll just have to give you another--even deeper--one.