Discuss as:

Jennifer Aniston shows off massive ring from Justin Theroux

Sweet talkin' in Santa Fe! Engaged duo Justin Theroux and Jennifer Aniston shared a sweet moment while out and about in Santa Fe, N.M., Saturday.

Jason Thomas / FilmMagic

Justin Theroux and Jennifer Aniston in Santa Fe, N.M., on Oct. 6.

PHOTOS: Jen and Justin's sexy vacation album

As the "We're the Millers" star, 43, caressed her fiance's face, she gave onlookers a glimpse at her giant engagement ring from her love of more than a year and a half.

This summer, a source close to the pair told Us Weekly Aniston is set on a "destination wedding" for her big day, "kind of like eloping with a few friends."

PHOTOS: Jennifer and Justin's matching style

"There will be the feeling of a vacation, since that's their favorite thing to do [together]," the source revealed.

"Jen is over the moon about her second chance at a happy marriage," another source says of the "Horrible Bosses" actress, who divorced Brad Pitt in 2005. "Justin is giving her a solid vow to love."

PHOTOS: Why 2011 was Jennifer's best year ever

Theroux proposed to Aniston on Aug. 10 in NYC while he was celebrating his 41st birthday.

Theroux's rep told Us, "Justin Theroux had an amazing birthday Friday, receiving an extraordinary gift when his girlfriend, Jennifer Aniston, accepted his proposal of marriage."

More in TODAY Entertainment: