But, the fact remains that I am not the one dressing an under-age teenager in a prostitute's outfits and undressing her everytime there could be the slightest reason. Watch the movie again and let me know what you see. She is made to exhude sensuality, to a purposefully shocking degree, which would have been great in a girl in her 20s, but is downright perverse and disturbing in a teenager.
River certainly had the warrior princess role, especially in Serenity, but she never made me think "Ooh, sexy little girl!" If that's what she did for you, I could understand being concerned.
The only men I saw who were obviously interested in her were Jayne and Badger. Both of whom were made out to be - as wingnutx said - pigs.
For what it's worth, the actress was 21 when Firefly began filming and 24 when she was in Serenity. I don't know exactly how old she was supposed to be in the show (I'm thinking 16 or 17 at the start of it) but you'd probably be better off complaining about the overt under-age sexuality of just about any teen-oriented TV show (The OC, One Tree Hill, etc) than trying to find Firefly's "pedophilic tinges."
As far as the incestuous part is concerned, pay attention to the look of the brother in the movie. Those are not the looks of a devoted sibling, but of an obsessed lover on the verge of a nervious breakdown.
I've never cared for Simon's character, but whatever his feelings about River I never got the obsessed lover vibe.
I still think you're seeing something that's not there. Firefly is no more incestuous or pedophilic than a Rorschach card is a dirty picture.