For several minutes, you just stand there taking in your new body. You feel so huge and lumbering. The room is warm and already you're starting to sweat. You can feel every drop of it pour down the thick hide under your furry body, it mingles with your furry body. You can smell it, your human side would consider it an offensive smell but your donkey side enjoys it, embraces it even.
You try to say something but your human voice is gone, only a bray escapes your bestial lips. Your human side feels panic. How can you ever tell anyone the truth about your form, that is your true form if this is your only method of communication?
If you could, you would write out your fate to inform others but those four hooves of yours would make it rather difficult.
Your large donkey ears pick up something outside of the door. You listen in.
"He's completely changed into a donkey," a voice says. It is the voice of your masseuse. The sound of the voice brings not anger. Your human side knows she did this to you. Your donkey side however allows the voice to evoke images of her massaging your organ and the feelings it brings. You feel your organ stir and hormones fill your mind. Thought becomes difficult.
"Excellent. Just make sure he stays in there for at least an hour. If he escapes the island before the time is up, he'll revert," a male voice says.
There seems an out for you. Just escape, fight your way past if necessary and you'll be human again. Of course, that would mean denying yourself the intense sensation you're experiencing.
As you bounce your organ up and down, you feel pleasure. Thoughts of escape fade as you ponder a simpler life and perhaps finding out just what happens to those who become donkeys here.
The pleasure builds and you feel another release. The smell of the liquid and your scent fills you nostrils, your brays fill your ears.
The hour passes quickly and the door begins to open. The masseuse is back and she's smiling. She walks in and pets down your back as she ties a rope around your neck. You feel secure with it on, secure that she'll take you to someone more comfortable then this cramped room.
"You're probably wondering what happens next. You're going to like this..." she starts.