when is it TMI?

I was chatting with a friend recently and she told me how embarrassed she was to learn the intimate details of another friend’s sex life. I thought her comment rather funny, because I tend to know a lot about my friends’ sex lives, and I don’t mind that one bit. I know about frequency, fetishes, fantasies, etc. Not to mention their various sexual hangups.

I wonder where the line is between “Too Much Information” and healthy disclosure? How much do you reveal about your sex life? What do you hide?

Also, where do you draw the line between what you tell your Bishop about your sexual experiences and what you keep to yourself? Has there ever been a sexual experience that you ought to have discussed with the Bish but then you decided it was just too personal to share?