Jennifer Aniston & Justin Theroux spend the weekend together

Jennifer Aniston has been spending all her free time with rumored love interest Justin Theroux.

The actress and her Wanderlust costar were first linked earlier this month, but denied reports of a romance.

According to X17, the pair spent Friday at Universal Studios before they headed to Aniston’s home.

On Saturday, Jen enjoyed a few hours at the Beverly Hills hotel spa but was joined two hours later by Justin, where they had lunch and were driven home by Jen’s assistant.

“These two are jumping into this head-first. They’re together all the time. But they sneak around and do everything they can not to be photographed together. Jen doesn’t like her relationships to go public before she’s ready,” a source said.