Some of that is certainly close to the edge, but as long as it's in the realms of pure fantasy, and not, say, Britney Spears being molested by Eminem or something, I have less of an issue.
Given my own... preferences I'm perhaps not the best to give an unbiased opinion, but I know that what I can enjoy featuring unreal people, I know I couldn't remotely stomach if it involved real, innocent, people.