I think the point is that if a person is comfortable doing something it is not perverted to them. It may seem strange to others but that is what being judgmental is all about. We all do it to some extent. The crux of the argument is where do you draw the line and who draws it? For instance, same sex intercourse may be acceptable to most while sex with children and animals is not. The main point here is that in the former case both parties give their consent. In the second one of the parties is not likely to have agreed. In my opinion it is wrong and counter-productive to label both cases as the same.

DtG