I gave her the dress you get from the dead money dlc, but, there is a certain dress she wants. Can't remember, my friend told me exact kind/one at the time but that was months ago.
:hubbahubba: we all wish, in fact, personally, shes the best female companion then Cass :hubbahubba:
I don't know. Cass has that "tough [censored]" attitude, I could only imagine what she is capable of.. but, then again thinking about that is kind of... creepy.