The terms in question are these:
This is DeviantARTs definition of what it considers pornography, and as such is banned
FAQ #565: You prohibit the submission of 'pornographic imagery'; what do you consider this to be?
And the above also applies to Written works as well, so explicit 'sexy' fanfics are also covered
FAQ #251: You prohibit the submission of 'pornographic literature'; what do you consider this to be?
Any submissions found violating these rules will have their submissions denied, and while I cannot speak for the rest of the staff, I also report them to DevART staff.
Please keep this in mind for your future submissions, thank you.