The reunited pair spent the weekend at a spa hotel in Arizona before returning to the Sunset Towers hotel in Hollywood.
Jennifer emerged looking suitably refreshed and content before driving off in Mayer's car.
Romance: Jennifer Anistonand John Mayer, seen here in Los Angeles on Monday, spent a romantic weekend together in a spa hotel in ArizonaJennifer, 39, and musician John, 31, are said to be 'taking things slow' as they attempt to put their relationship back together after breaking up in August following an intense summer romance.
According to Star magazine, the couple spent a romantic weekend together at Sanctuary Camelback Mountain Resort & Spa in Paradise Valley.
They stayed at a private home within the resort that that costs $4000 a night and comes with a home cinema, outdoor Jacuzzi and flagstone fireplace.
A source told The Star: 'Their hideaway was tucked into the mountains and was so private that you couldn't even see the driveway from the street. Once they checked in, the couple was never seen leaving their home.'
Baby steps: The couple are taking things slow after reuniting following their August break-upWhile at the spa the couple spent their days soaking up the sun by the side of their private pool, and enjoyed intimate meals brought in from the spa's award-winning restaurant.
Jennifer and John arrived back in Los Angeles on Monday and were seen dining at the Sunset Tower Hotel. Intriguingly, it is the same restaurant where Jennifer was seen dining with Scottish actor Gerard Butler.
Last month MailOnline told exclusively how Jennifer had called her ex-partner and initiated contact, with them talking daily.
Sightings of the couple dining in Boston and New York City were confirmed when soon after Jennifer met up with John at the Sunset Tower Hotel for dinn