You wake up with Miranda who has a request

You wake up the next morning. You are sore in all the right places from the night before, as well from marks on your back left from a flogger. You chest still bears some red scratches from her finger nails. Last night was clearly amazing.

Miranda is now wearing a white lace nighty and is looking shyly at you. "I'm glad you're awake now. I've been thinking, and I have one more request of you. I really put myself out there last night and you rose to the occasion. I really loved every moment of it. I still want you, and I want to keep doing this with you every night, but I've been burned before by boys who seemed nice at first but then cheated." She pulls out a male chasity device "Will you wear this for me. I promise you I'll take it off nearly every night. It would be a waste not to use that large cock of yours. I just...don't share my things and I need some assurance until we really know each other."