BEN AND JEN WE'RE JUST LIKE AN OLD COUPLE ... CAUSE WE MATCH!!!

Ben Affleck and Jennifer Lopez are all in on being a couple ... because now they're wearing matching clothes ... yes, the dreaded matching clothes!!! Check out these pics of Ben and J Lo hitting up Westfield Mall in L.A. for a Tuesday afternoon shopping spree ... they're dressed up super nice for a midday adventure, and it looks like they're coordinating outfits.

BEN AND JEN WE'RE JUST LIKE AN OLD COUPLE ... CAUSE WE MATCH!!!