Good read and some interesting insights. I generally agree with keeping things PG-13, though I also tend to write for myself as an audience. If actually moves the story I do not think I would have an issue putting it in the story. At the same time, unless you are writing porn, it is seldom necessary to go into graphic details regarding a sex scene. Horror is much the same way if you are going for the psychological mind twist a lot of blood and gore graphic description may not be needed. Slasher style horror, then pour on the buckets of blood and entrails.
While Lazarus Gray is a fairly new (to me) discovery and has become one of my favorite reads, think I need to go hunt up Rabbit Heart. 🙂
When My Worlds Collide 