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It looks like Jen and John's visit to Friend Courteney Cox's new Malibu pad went very well!

The threesome, along with Tobey Maguire's wife Jennifer Meyer - who's designed luxury jewelry for both Aniston and Cox! - all dined at West Hollywood eatery Madeo last night. (Same place John Mayer's ex Cameron Diaz dined at this weekend!)

Wow - so is this relationship the real thing? If Jen's introducing her man to Courteney, it must be!