Etruscan Rain:
they are going to put me in chastity.
Etruscan Rain:
it's extremely arousing for him to know I'm locked up when he's inside her,
Etruscan Rain:
she's curious about the idea
Etruscan Rain:
he doesn't plan on letting me out often
Etruscan Rain:
he wants me to be frustrated
Etruscan Rain:
he will be the one holding the key
Etruscan Rain:
I will have to beg him for release.
All of these things are 'normal' for a cuckold in the control of a Dominant Bull. It usually evolves way beyond what you've mentioned here. You haven't even mentioned clean-up, or fluffing, or submitting sexually to the Bull.