Nah, I wouldn't be worried about thinking too much. I often don't think at all, and then Mac points out some fine societal commentary in the film and enjoys watching my dumb expression.
I was too busy doing the happy fangirl squeal over Willem Dafoe as a gay man to really notice the twins. X3
*spasms* Oh yes, you should be. Srsly. *winks* Can't say I wasn't quite happy about Dafoe in drag myself, though.