Jennifer Aniston: Barefoot in Hawaii with Justin Theroux!

Jennifer Aniston goes barefoot as she goes for a stroll with her boyfriend Justin Theroux while vacationing in Hawaii on Thursday (August 4).

The 42-year-old actress and her 39-year-old beau both carried cups of coffee on their romantic walk.

Jennifer is in town with Justin to celebrate the 40th birthday of her pal Christine Taylor.

PHOTOS: Check out the latest pics of Jennifer Aniston

Earlier in the week, Jen and Christine spent a relaxing day in the sun while lounging on the beach in their bikinis.

For more pics of Jen and Justin, check out X17!

Bigger pic inside…