You and I have reached a significant milestone in our relationship, my sweet girl. We have decided to make our D/s relationship permanent, and will be celebrating with a very permanent gesture. You will be getting castrated! We are both so excited for this new chapter, and we understand just how enormous this offering is. Giving up a part of yourself to be mine, completely. You are such a good girl for me, I'm so grateful to be taking those testicles from you.

No humiliation used.