Hello there! Unfortunately, I have the same question as you. Of course, such themes must be avoided in submissions like projects or skins from what I understand from the rules, but I have zero clue about blog posts with a literary intention. I'd like to know too since I look forward to do some writing too. I guess it may depend on how "graphic" your descriptions are and your ability to "tell without actually telling" sort of stuff, but it would be great to have a vet or a staff member solve this doubt.
I would be quite dissapointed if scenes with a mild level of violence/sexual innuendo that serve a purpose for the plot could not actually be written because of silly family-friendly rules. The world is not made out of bubble wrap, anyways.
I wish you luck!