Master gets up and comes back with another man. The man seems in his late thirties, bald, and dressed in a suit.
"Ah, here is our specimen"
Master smiles and looks at his watch.
"Well I gotta go. I'll be back at 5. Slave, you better do everything he says"
You're left alone with the man who now smiles at you. He open his suitcase and switch out your collar with one of his own. You let him do it, still needing to pee. He sits down and look at you with a smile. After a while you try to speak.
"Uh I"
ZAP. You fall to your knees as an electric shock is delivered to you by the collar. Motherfucker it hurts.
The man gets up.
"Welcome to your new life. I will be your trainer, and so you will address me as Sir. You will not speak if not spoken to. Now what did you wanted to say?"
Massing your throat, you coarse.
"Sorry Sir, but I have to pee. "
"Then pee."
You look at him surprised, and he puts his face closer to yours.
"You seem to be expecting to be peeing in a toilet, like a normal human. But that's not what you are anymore. You are a slave. So pee."
You hesitate. You don't wanna pee on the nice kitchen floor. Another shock zap you, and this time your bladders let go. The pee goes everywhere, overflowing for the empty dildo you are still wearing. The trainer grabs you by the hair and put your face in your own pee.
"Now lick it until it's clean."
You find slave life a whole lot less fun now that it's not your hot master that is giving you orders. Still you do it. Two zaps from the collar where enough to make you scared of him.
When you're done he takes out a stack of paper and hands you a pen.
"Sign here."
You take the pen but hesitate.
"What is it?"
ZAP. ZAP.
The shock this time were stronger.
"One for speaking out of place, another for not calling me sir. Now sign"
You get up and sign. You already signed your life away to your friend, it can't be much worst.
He smiles.
"Now to answer your question, this is a contract that allows me to modify you as I please. Technically you don't have any legal rights anymore, but I needed you to sign because this is a magic contract. Your master has left me with a very precise set of instructions of how you wanted to behave, and it is my job to make you so. Now first thing first ... "