I am going to trick you into a normal session, I will strap you to the bed so you can't escape. After that I'm going to hook your dick up to My Tremblr milking machine, I will set it to full capacity suction mode. It will suck your balls completely dry, just like milking a cow. Except for the fact that it will not stop. It will go on and on, until you beg Me to stop. But I won't. I will continue the agony until your balls are shriveled up.
your sperm is Mine, and I will use it as I see fit, I might feed it to other slaves or I might just throw it away.