Well, I tag #incest pretty liberally, mostly because it’s shorter to type than #daddy/boy or whatever. So it’s inclusion doesn’t necessarily imply blood ties–but more along the idea of two people taking the standard roles of father and son, or brainwashing someone to actually believe they are a father or son, or…actually being father son, etc. I include hashtags at all because that’s the only way people can search for stories. I try to keep things general, because if someone is looking fora story in particular, they’re going to have an easier time finding something tagged #incest than if I broke it down into innumerable categories.