I wouldn't want to do that, it's the most popular subject matter. I think they are mostly concerned about the drugged, mind control, underage, etc... Incest is natural, it happens in nature, in every social species and most others as well. Every primate group it happens regularly so humans need to get past the taboo as it also happens a lot in the human race as well.
Things that don't happen in nature that are socially acceptable or happen extremely rare are things like homosexuality, having someone else fuck your wife while you watch. Try and picture two silver back gorillas making out or a male lion watching while another male lion bangs his pride! But it's not uncommon for the silver back's son who was ran off as a black back to return as a silver back, defeat his father and take over his colony that includes his siblings, aunts and even mother.
If society can accept abnormal fetishes then surely they can learn to accept normal ones.