If you train your slave properly, you can expect to see this kind of pride on it's face after an intense session of abuse because it's position in life is so thoroughly reinforced that it finds it's purpose in serving and accepting daily punishment.
Little slut. Very submissive. I like humiliation and dirty talk. I would love to hear what you would do to me and how you would fuck me. The kinkier the better. It makes my clitty hard.