Well, last time I was there I asked and she said she was Ivy. Time before (over 2 years ago) I had Lisa. I thought Lisa was a little more engaging then Ivy who I never had before. But I cannot remember her face. But I remember her boobs!
Also, when I was there a couple weeks age, the whole hour, I could hear the pitter patter of little feet moving around the building. So, I am not sure if there are 1 or 2. This one had, Ivy(?) had lightened hair, not your normal jet black.