"If, after all of that, you still want to pursue this, I will release you from your binds and present the terms that would come with wearing my collar. I will never ask your permission in the future, as I will expect absolute trust in my judgement in all matters and trust that you will use a safeword immediately whenever needed. But right now, I’m going to give you one more chance. You can ring that bell to go home. At any time, you can escape. If you do not, then the coming hours or days will proceed exactly as I have laid out. Do you understand?" She nodded, and he moved his hands to her jaw along the straps of her gag. "I’m going to remove your gag," he murmured, "and I want to hear one simple thing from you, and it is this:  Severus Snape, I want you to claim me. If you are unable or uncomfortable with this, then ring the bell twice and you will be home." 