Everybody:
No, you don't.
You find physically attractive people attractive. You find clear skin of whatever color you prefer attractive. You find symmetry attractive. Whether you like DDs or AAs they have to be the same size. Yes, they do. You find a certain body type most attractive, and other body types less attractive. I have yet to find a work of fiction depicting a "sexy geek" that doesn't depict a sexy person independent of geek status.
Look at the girl somebody posted on page 1: She's stunning. What's her profession? Model. Is she smart? Do you know whether she is or not because she's wearing glasses in that picture? Of course not. But you do know whether or not you find her attractive. See what I mean?
Hollywood has decided that it can put a stunning young woman who is a 9 or 10 in unflattering clothing, glasses, and a messy up-do, and give her geek appeal, but they always give her a makeover by the end of the second act.
Your real "geek" stereotypical gamer girl or guy who stays up all night gaming and eating crap food, never gets out in the sun or to the gym, speaks in weird jargon particular to her gaming/anime/academic obsession doesn't have any plans on Saturday night except ones pertaining to said obsession, I guarantee.
I find it attractive when a woman has obviously already won the genetic lottery and topped it off with a robust interest in her own body and society. I have my doubts about people who claim otherwise.