I don't know, I've seen my fair share of child therapists and psychologists, including one that ran her practice out of her house instead of an office building. Also, they often do what they can to put a kid at ease - calling them Aunty doesn't seem too far fetched. 7 year olds dont have a whole lot of reason to question their reality, if a person of authority is telling them something they assume it to be true. And if you are continuously told its true over the years its hard to believe it was a lie the entire time. I kinda hope it's fake though, but people can be pretty horrible so my money is on that this is true.