When I fantasize about being a slave, it's often with a foreign master. He'll give me an unintelligible order, and when I don't obey (because I don't know how), I'll be punished or forcibly directed--sort of like when you say "sit," and push a puppy's behind down, because they don't know what "sit" means. It means I'll never be spoken to as a human--I'll only learn the words that are necessary to please my master.

Interesting (and very detailed!) fantasy. Do you ever fantasize about your wife having a female lover?