I relate to this as well. I've had childlike feelings for current, and other Ts, but I've never experienced erotic transference before. I'm not sure guilt is the right word for me, but it does feel a shameful thing and deeply embarrassing, even though I haven't told T about this. She knows about the childlike transference, but not that I have sexual feelings. Id like to tell her at some point but then I wonder why I'd want to. I can't imagine actually WANTING to do anything with her, so maybe I just want to be honest about all of my feelings. Not sure I can though. Unlike you, I'm single so I don't have a partner to worry about. It must be incredibly distracting to be experiencing sexual attraction to T whilst in a relationship. If you can, and if the feelings get too intense, it could well be worth discussing them with T so you can explore why you're having them. Obviously you may find they wear off on their own and you don't need to.