How I got around this was I asked my T about the kind of sexual abuse I suffered. It gave me time to see how he felt about it and how much he knew. It sounds like you are really upset because a "woman" abused you. Why don't you ask your T if he has dealt with that before, how common it is and if others he has treated have a really hard time talking about it.

That is how I approached it and it allowed me to just say "me too" without getting into verbalizing the details myself.