Justin Theroux: Jogging with Friends in Hawaii

Justin Theroux goes jogging with a few friends on Monday (August 8) while on vacation in Hawaii.

The 39-year-old actor and screenwriter and his girlfriend, Jennifer Aniston, headed to Hawaii late last month.

PHOTOS: Check out the latest pics of Justin Theroux

Jen and Justin celebrated in the sun with her good friend Christine Taylor, whose 40th birthday was on July 30!

The couple “seemed giddy in love and genuinely happy together,” a source told Us Weekly of the couple, who checked out antiques and jewelry at the Lotus Gallery earlier in the month.

FYI: Justin will celebrate his 40th birthday later in the week – happy early birthday!!

Bigger pic inside…