Jenn and John first split back in August and apparently Jenn asked John to get back together for PR purposes while she did her promo rounds for 'Marley & Me'.
Whatever her plan was, it worked because her movie broke box office records for a movie opening on Christmas day.
"Aniston toted Mayer around through all her promotional gigs to deter interviewers from focusing on her single status," reported Page Six.
Earlier this week Aniston was spotted at Los Cabos, Mexico airport with friends Courteney Cox and Laura Dern. The BFF's are planning on spending New Years Eve together. So expect to see photos of Aniston in a tiny bikini hit the net by next week.
Aniston was voted the third most overexposed celebrity of 2008 due to her on-again off-again relationship with Mayer. Wonder who her fake boyfriend will be in 2009? Who do you think should get the title?