Rachel is definitely hot, so is her OC co-star Autumn Reeser:
Blake Lively:
Alexis Bledel:
Isla Fisher:
Leighton Meester:
Also:
Minka Kelly
Sophia Bush
Mandy Moore (grrrrrow)
Natalie Portman
Megan Fox (fixing the car in Transformers)
Ashlee Simpson (pre-nose job)
Katherine Hiegl