Nyx explains her rules

You and Cassie stand in front of Nyx, naked excet for your cage, humiliated. Nyx has a slight smile on her lips as she steps forward.
"Before tonight ends, I will lay out the rules you would have to follow if you really want to serve me."
She puts her hand on your chest and slowly lets it gluide down towards your cage.
"I will hold the only key to both of your cages. You will only be release if you´re with me, and even then, its not guaranteed. I will decide if and when to unlock you, how to tease and punish you, and everything else. Besides that, outside of the times we meet, I will mostly stay out of your relationship. If you have questions or problems, you can always reach me. But if i dont deem them worthy my time, I wont help You with them. Is that clear?"

Carrie nods, "Yes Misstress."
You take a second longer to think about everything Nyx says, a second to long. Her hand closes around your balls and squeezes them. You cant help but whince a bit under the pain. "Is that clear?"
"Yes Misstress." You manage to say, but she doesnt let go just yet.

"If you agree to submit to me after tonight, I will own you. I will own your cock, your manhood, and I will own your girlfriends pussy. Do you understand?"

"Yes Misstress." You say again, and she lets go.

"Alright." Seemingly satisfied, Nyx steps away. "Now for the most important question. Are you ready to submit to me on the go, or do you want a day to think about it?"