I've done sexual stuff before - onstage, which is even more emotionally difficult. With a TV crew around, you are stopping and starting; it becomes really technical. It's not erotic at all.
The only means of strengthening one's intellect is to make up one's mind about nothing, to let the mind be a thoroughfare for all thoughts.
I came back to do a live concert. Nobody had done that before and I know my managers were worried.