Interesting question. I think there´s a clear division between talking about my own sexual issues and talking about sexual issues relating to transference.

My sexual issues also affects how I relate to a T. I don´t see a T at this very moment but I have at least touched the subject of sex when talking to former T:s. I would say it feels rather safe but I´ve also experienced that not all T:s have enough knowledge about sexual issues to really engage in such discussions.

I would probably not feel safe talking about erotic transference until I really knew a T could handle that I for example once in a while think about how her sex life is or that I during some stages in therapy find her attractive. For some T:s this unfortunately is seen as boundary crossing.

With a new T I could probably ask her rather early on if she knows how to handle erotic transference but I would feel that could also end our relationship.