I waited for Mary to go into her room and then I went over and knocked on her door.
"Come in," I heard Mary say, sounding like she expected me.
"Hi," I said, unsure how to even begin this conversation.
"Missing anything important?" Mary asked, a smile on her face. I wasn't sure if she was talking about the medallion or my genitals and it didn't really matter. I was missing both.
"Sis, I was gonna change you back, honest," I said, not intending to sound desperate, but sounding desperate nonetheless.
"Maybe you were, I don't know," she said.
I think she believed me. She always had a knack for telling when I was lying.
"When you came into my room that last time, I wasn't asleep. I felt the shock and my boobs start to deflate and I knew you'd done something. When I got back from the doctor, I went into your room and turned on your computer. By the way, the instructions for the medallion were very helpful, thanks."
So that's how she knew how to use it, I thought. I had told her! I should have hidden the instructions, instead of just turning off my monitor.
"So," Mary continued. "How do you like your new equipment? I used the panties that go with the training bra. I thought it was an appropriate punishment, don't you?"
I didn't answer the question.
"Ok sis, what do you want to change me back?"
"Want? Me?"
Mary pretended to think.
"Hmmm....."