AceShowbiz -

Ben Affleck and girlfriend Lindsay Shookus keep going strong. The couple seemingly has been quite relaxed to show some PDAs every now and then, recently during their casual stroll in Santa Monica. The 44-year-old actor was photographed walking arm-in-arm with the "Saturday Night Live" producer after grabbing breakfast together at Snug Harbor on Saturday, August 26.

Both sported casual look in tees. The "Gone Girl" actor wore a black T-shirt with Detroit Motor City written on it. He paired it with jeans, cream sneakers and black shades. His girlfriend, meanwhile, was walking beside him in a cropped gray tee. She completed her look with high-waisted denim shorts and black-and-red slippers.

Ben reportedly wanted to introduce his new girlfriend to his three kids, but Jennifer Garner was not a fan of the idea. "It's taken the whole family a long time to adjust to the divorce. Bringing Lindsay into the picture could be very jarring," said a source. The Batman depicter allegedly would respect any decision made by his estranged wife, and would introduce Lindsay to the kids, Seraphina, Samuel and Violet, when Jennifer approved.

While it might take time for Lindsay to meet the kids, it would not be that hard for Ben to introduce her to people close to him, including BFF Matt Damon. Later that day, Ben brought along Lindsay to a small party hosted by "The Martian" actor in Los Angeles for the Floyd Mayweather, Jr. vs. Conor McGregor fight.

"Ben likes introducing Lindsay to friends," a source revealed. "They mingled together, but also separately. Lindsay seemed very comfortable around Ben's friends."

Last week, the pair were seen entering a jewelry store in New York City. It seemed like Lindsay had her eye on some jewelry. The Oscar-winning actor could also be seen stopping for a while to happily give his autographs to his fans.