Ratings - how high are you comfortable with going? Have you ever written higher? If you're comfortable with NC-17, have you ever been shocked by finding that the story you're writing is G-rated instead?
I have only tried once to write anything more... risque than kissing. I blushed three words in and decided to work on something else. I think that some stuff I've written would be rated T for swearing and descriptions of violence, but that's it.
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I made a desktop! At least, that's what I'm using it for.
Full size here.