Why wouldn't you tell your therapist? Because admitting stuff out loud makes it (more) real.

Worst possible thing? Someone you trust uses your fear against you.

It took me awhile to realize that a very young part of me was braced all the time for my therapist to demand "payment" for his caring - meaning he'd want to have sex with me. Now - to say that to him sounded like the most presumptuous thing in the world (I am not attractive, young, etc.) but it also sounded like a huge insult to his professionalism, his character, etc. So I didn't say it for a very long time.

But eventually I did, and he nodded as if he completely expected this and he did a good job of reassuring me without rejecting me. (How do you say "I'd never want to have sex with you without it being insulting and yet you must say exactly that!?) But this list of awful things that could have happened were long in my head.

I'm impressed that you carried through today. Good job. Don't over analyze it. Let the good feeling sit for awhile and just enjoy it.