Although you may like it, the fact is that it is harassment, and if she does it to someone else then you are essentially enabling her.
I know you posted this because you like the behaviour, but would you like to be the person who doesn't like it, but she does it because she's gotten away with it and therefore continues? I'm sorry to be harsh but this needs to be reported. Do role play at home if you like this sort of thing, but it doesn't belong in the office.
6 years