You are awoken by a muffled cheer. You look up and see it is night, the moon is in it's full glory and you see you are in a pen with several sleeping horses. Looking over you see a naked woman standing by the gate of the pen. She is stretching and takes off the remains of what looks like leather S and M gear, but on closer inspection is a bridle. You are still dazed so her mutterings don't make any sense.
As your head clears you start to understand her. She walks over to you and asks if you were a human. You try to answer but only manage to neigh. She takes this as a yes and starts to undo the fastenings around your head. As she does you feel a pressure released around your head. Your bridle falls to the floor and you look down to see your vision change. An immense pain builds in your head as it is reshaped to that of your former human appearance. You ask her what happened but she shrieks and you see her frozen in her steps moments before being hit in the neck with a tranquillizer dart.
Someone then steps out from the shadows, holding a rifle. You look down to see your forelegs have become human, your hooves - hands and you look down to see your impressive equine genetalia reverting to your less than impressive human equiupment. You watch the rest of your body revert to human form and then look back to see the gunman walk over to the woman and put her bridle back on. With immediate effect she starts to become a horse again, growing hair and changing proportions. You turn and begin to run, making it to the far end of the pen then over the gate and break for the woods. You have no shoes on but ignore the pain as you step over all manner of rough terrain. You know nothing other than you must reach the cover of woods. Your heart is racing, you are freezing as you have no clothes on but you know you must get to he trees. You reach the woods and look back just as you feel something hit your neck as you do you ....