I think R has a build-up to sex and then describes the act without using foul language or too intimate details. R is also I you use F-word or bad language in a non-sex story.
In pictures I usually say that an erection is R, but touching the erection is NC-17
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Date: 2011-04-03 09:34 am (UTC)In pictures I usually say that an erection is R, but touching the erection is NC-17
That's my rules in my journal and comms anyway :)