The Doctor is a lonely man — er, Time Lord — and while he enjoys showing anyone around the wonders of the universe and all of history, he especially enjoys showing those same wonders to attractive ladies. Is the Doctor just a horndog? Somehow the wanting made her less hot. Regardless, yes, Rose Tyler with her little blonde hair pouty lips and Brooke Shields-esque eyebrows did make her nice to look at, otherwise, Billie Piper would not have been cast as a call girl in a show post- Doctor Who where she coincidentally gets it on with Matt Smith. Or maybe not.