The 51-year-old accompanied Affleck as his plus one at the Venice Film Festival on Friday.
Dressed in a gorgeous pinstriped dress, J Lo beamed brightly while watching her man in action. The couple is currently overseas for Affleck's premiere of his movie, The Last Duel.
Bennifer 2.0 is expected to make their first red carpet appearance as a couple tonight, but hours before, J Lo let the spotlight shine on Affleck.
The paparazzi went wild when the well-dressed duo showed up to the actor's cast photocall, marking their first event together after rekindling their romance five months ago.
J Lo looked every bit chic, wearing her black and white striped dress that fell below her knees.
Pairing the sophisticated look with her hair pulled back in a sleek ponytail, she stunned as Affleck's arm candy.
The Academy Award winner, 49, looked like a proud boyfriend while escorting J Lo down the dock and onto their water taxi before making their big entrance.
Affleck was dressed to the nines as well, wearing a sharp black suit and white shirt.
When they jumped off the water taxi, it was on! Eager shutterbugs snapped away, catching the couple smiling and holding hands. J Lo waved to excited fans nearby while clutching onto her on-again boyfriend.
But when Affleck joined his cast — including Matt Damon, Adam Driver, Jodie Comer, and more — J Lo disappeared into the background.
The actor flashed his famous pearly whites alongside his real-life best friend and fellow castmates sans his girlfriend.
Showing she's the supportive type, J Lo let Affleck have his shining moment. That will surely change when they make their highly-anticipated walk down the red carpet together for the first time tonight.
Bennifer 2.0 were first linked in April, weeks after J Lo ended her engagement to Alex Rodriguez.
The two have been inseparable since, and stepping out on the red carpet together 17 years after their initial breakup is a HUGE milestone!