Novices and newbies discussion

Recently my sweet boss queen put me in chastity. She’s looking for a title that isn’t just my name, but she doesn’t really care for insulting or humiliating words like bitch, nor does she enjoy how maid and servant sound to her ear. I do crossdress, so if it helps with ideas, I’ll be acting as her maid every Sunday (maybe more often later on?). We haven’t quite landed on the perfect word yet, so I’m hoping you all can offer some suggestions. She is certainly the boss queen after all.