Jennifer Aniston in a Sexy Vivienne Westwood Dress

Jennifer Aniston stopped by an NYC Sephora to promote her self titled fragrance on May 5, donning a peek-a-boo frock by Vivienne Westwood.The sleeveless, figure-flaunting dress featured a revealing keyhole detail and modest hemline. Minimal accessories like drop earrings and nude, strappy sandals completed her sophisticated daytime look.The 42-year-old "Friends" star -- who hated her signature